S = {x : x=☺} ; so or
S = ☺ or |S|= |☺|=1
Lemma :::
☺⊂ log☺
э a ☺way, ў s.t.
ўi=1->∞ ≠ converge to specific destination
э a ☺stitute, ☻s.t.
║☻║2 / ║☺║2 ≈ 0
so ☺is the ☺ject of interest
☺title : jab dekho,☺dekho
Wednesday, October 15, 2008
Tuesday, July 17, 2007
Question of DataBase
1. What are two methods of retrieving SQL?
2. What cursor type do you use to retrieve multiple record sets?
3. What action do you have to perform before retrieving data from the next result set of a stored procedure?
4. What is the basic form of a SQL statement to read data out of a table?
5. What structure can you have the database make to speed up table reads?
6. What is a "join"?
7. What is a "constraint"?
8. What is a "primary key"?
9. What is a "functional dependency"? How does it relate to database table design?
10. What is a "trigger"?
11. What is "index covering" of a query?
12. What is a SQL view?
SQL Server
1.What are primary keys and foreign keys?
2.What is the difference between clustered and non-clustered indices? ...and why do you use a clustered index?
3.What is an outer join?
4.What are Cartesian joins?
5.How is referential integrity enforced in a SQL Server database?
6.What are the inserted and deleted tables and what are they used for?
7.What is the name of the SQL language used in SQL Server stored procedures?
8.What is the purpose of having stored procedures in a database?
9.Why might you create a stored procedure with the 'with recompile' option?
10.What is a cursor? Within a cursor, how would you update fields on the row just fetched?
SQL, Oracle, Pro*C/C++
1.What are the different types of joins?
2.Explain normalization with examples.
3.What cursor type do you use to retrieve multiple record sets?
4.Difference between a "where" clause and a "having" clause
5.What is the difference between "procedure" and "function"?
6.How will you copy the structure of a table without copying the data?
7.How to find out the database name from SQL*PLUS command prompt?
8.Talk about "Exception Handling" in PL/SQL?
9.What is the difference between "NULL in C" and "NULL in Oracle?"
10.What is Pro*C? What is OCI?
Oracle Concepts and Architecture Database Structures
1.What are the components of physical database structure of Oracle database?
2.What are the components of logical database structure of Oracle database?
3.What is a table space?What is SYSTEM table space and when is it created?
5.Explain the relationship among database, table space and data file.
6.What is schema?
7.What are Schema Objects?
8.Can objects of the same schema reside in different table spaces?
9.Can a table space hold objects from different schemes?
10.What is Oracle table?
2. What cursor type do you use to retrieve multiple record sets?
3. What action do you have to perform before retrieving data from the next result set of a stored procedure?
4. What is the basic form of a SQL statement to read data out of a table?
5. What structure can you have the database make to speed up table reads?
6. What is a "join"?
7. What is a "constraint"?
8. What is a "primary key"?
9. What is a "functional dependency"? How does it relate to database table design?
10. What is a "trigger"?
11. What is "index covering" of a query?
12. What is a SQL view?
SQL Server
1.What are primary keys and foreign keys?
2.What is the difference between clustered and non-clustered indices? ...and why do you use a clustered index?
3.What is an outer join?
4.What are Cartesian joins?
5.How is referential integrity enforced in a SQL Server database?
6.What are the inserted and deleted tables and what are they used for?
7.What is the name of the SQL language used in SQL Server stored procedures?
8.What is the purpose of having stored procedures in a database?
9.Why might you create a stored procedure with the 'with recompile' option?
10.What is a cursor? Within a cursor, how would you update fields on the row just fetched?
SQL, Oracle, Pro*C/C++
1.What are the different types of joins?
2.Explain normalization with examples.
3.What cursor type do you use to retrieve multiple record sets?
4.Difference between a "where" clause and a "having" clause
5.What is the difference between "procedure" and "function"?
6.How will you copy the structure of a table without copying the data?
7.How to find out the database name from SQL*PLUS command prompt?
8.Talk about "Exception Handling" in PL/SQL?
9.What is the difference between "NULL in C" and "NULL in Oracle?"
10.What is Pro*C? What is OCI?
Oracle Concepts and Architecture Database Structures
1.What are the components of physical database structure of Oracle database?
2.What are the components of logical database structure of Oracle database?
3.What is a table space?What is SYSTEM table space and when is it created?
5.Explain the relationship among database, table space and data file.
6.What is schema?
7.What are Schema Objects?
8.Can objects of the same schema reside in different table spaces?
9.Can a table space hold objects from different schemes?
10.What is Oracle table?
Question of Operating System
1. What are the basic functions of an operating system? - Operating system controls and coordinates the use of the hardware among the various applications programs for various uses. Operating system acts as resource allocator and manager. Since there are many possibly conflicting requests for resources the operating system must decide which requests are allocated resources to operating the computer system efficiently and fairly. Also operating system is control program which controls the user programs to prevent errors and improper use of the computer. It is especially concerned with the operation and control of I/O devices.
2. Why paging is used? - Paging is solution to external fragmentation problem which is to permit the logical address space of a process to be noncontiguous, thus allowing a process to be allocating physical memory wherever the latter is available.
3. While running DOS on a PC, which command would be used to duplicate the entire diskette? disk copy
4. What resources are used when a thread created? How do they differ from those when a process is created? - When a thread is created the threads does not require any new resources to execute the thread shares the resources like memory of the process to which they belong to. The benefit of code sharing is that it allows an application to have several different threads of activity all within the same address space. Whereas if a new process creation is very heavyweight because it always requires new address space to be created and even if they share the memory then the inter process communication is expensive when compared to the communication between the threads.
5. What is virtual memory? - Virtual memory is hardware technique where the system appears to have more memory that it actually does. This is done by time-sharing, the physical memory and storage parts of the memory one disk when they are not actively being used.
6. What is Throughput, Turnaround time, waiting time and Response time? - Throughput – number of processes that complete their execution per time unit. Turnaround time – amount of time to execute a particular process. Waiting time – amount of time a process has been waiting in the ready queue. Response time – amount of time it takes from when a request was submitted until the first response is produced, not output (for time-sharing environment).
7. What is the state of the processor, when a process is waiting for some event to occur? - Waiting state
8. What is the important aspect of a real-time system or Mission Critical Systems? - A real time operating system has well defined fixed time constraints. Process must be done within the defined constraints or the system will fail. An example is the operating system for a flight control computer or an advanced jet airplane. Often used as a control device in a dedicated application such as controlling scientific experiments, medical imaging systems, industrial control systems, and some display systems. Real-Time systems may be either hard or soft real-time. Hard real-time : Secondary storage limited or absent, data stored in short term memory, or read-only memory (ROM), Conflicts with time-sharing systems, not supported by general-purpose operating systems. Soft real-time : Limited utility in industrial control of robotics, Useful in applications (multimedia, virtual reality) requiring advanced operating-system features.
9. What is the difference between Hard and Soft real-time systems? - A hard real-time system guarantees that critical tasks complete on time. This goal requires that all delays in the system be bounded from the retrieval of the stored data to the time that it takes the operating system to finish any request made of it. A soft real time system where a critical real-time task gets priority over other tasks and retains that priority until it completes. As in hard real time systems kernel delays need to be bounded
10. What is the cause of thrashing? How does the system detect thrashing? Once it detects thrashing, what can the system do to eliminate this problem? - Thrashing is caused by under allocation of the minimum number of pages required by a process, forcing it to continuously page fault. The system can detect thrashing by evaluating the level of CPU utilization as compared to the level of multiprogramming. It can be eliminated by reducing the level of multiprogramming.
11. What is multi tasking, multi programming, multi threading? - Multi programming : Multiprogramming is the technique of running several programs at a time using timesharing. It allows a computer to do several things at the same time. Multiprogramming creates logical parallelism. The concept of multiprogramming is that the operating system keeps several jobs in memory simultaneously. The operating system selects a job from the job pool and starts executing a job, when that job needs to wait for any i/o operations the CPU is switched to another job. So the main idea here is that the CPU is never idle. Multi tasking : Multitasking is the logical extension of multiprogramming .The concept of multitasking is quite similar to multiprogramming but difference is that the switching between jobs occurs so frequently that the users can interact with each program while it is running. This concept is also known as time-sharing systems. A time-shared operating system uses CPU scheduling and multiprogramming to provide each user with a small portion of time-shared system. Multi threading : An application typically is implemented as a separate process with several threads of control. In some situations a single application may be required to perform several similar tasks for example a web server accepts client requests for web pages, images, sound, and so forth. A busy web server may have several of clients concurrently accessing it. If the web server ran as a traditional single-threaded process, it would be able to service only one client at a time. The amount of time that a client might have to wait for its request to be serviced could be enormous. So it is efficient to have one process that contains multiple threads to serve the same purpose. This approach would multi thread the web-server process, the server would create a separate thread that would listen for client requests when a request was made rather than creating another process it would create another thread to service the request. To get the advantages like responsiveness, Resource sharing economy and utilization of multiprocessor architectures multi threading concept can be used.
12. What is hard disk and what is its purpose? - Hard disk is the secondary storage device, which holds the data in bulk, and it holds the data on the magnetic medium of the disk.Hard disks have a hard platter that holds the magnetic medium, the magnetic medium can be easily erased and rewritten, and a typical desktop machine will have a hard disk with a capacity of between 10 and 40 gigabytes. Data is stored onto the disk in the form of files.
13. What is fragmentation? Different types of fragmentation? - Fragmentation occurs in a dynamic memory allocation system when many of the free blocks are too small to satisfy any request. External Fragmentation : External Fragmentation happens when a dynamic memory allocation algorithm allocates some memory and a small piece is left over that cannot be effectively used. If too much external fragmentation occurs, the amount of usable memory is drastically reduced. Total memory space exists to satisfy a request, but it is not contiguous. Internal Fragmentation : Internal fragmentation is the space wasted inside of allocated memory blocks because of restriction on the allowed sizes of allocated blocks. Allocated memory may be slightly larger than requested memory; this size difference is memory internal to a partition, but not being used
14. What is DRAM? In which form does it store data? - DRAM is not the best, but it's cheap, does the job, and is available almost everywhere you look. DRAM data resides in a cell made of a capacitor and a transistor. The capacitor tends to lose data unless it's recharged every couple of milliseconds, and this recharging tends to slow down the performance of DRAM compared to speedier RAM types.
15. What is Dispatcher? - Dispatcher module gives control of the CPU to the process selected by the short-term scheduler; this involves: Switching context, Switching to user mode, Jumping to the proper location in the user program to restart that program, dispatch latency – time it takes for the dispatcher to stop one process and start another running.
16. What is CPU Scheduler? - Selects from among the processes in memory that are ready to execute, and allocates the CPU to one of them. CPU scheduling decisions may take place when a process: 1.Switches from running to waiting state. 2.Switches from running to ready state. 3.Switches from waiting to ready. 4.Terminates. Scheduling under 1 and 4 is non-preemptive. All other scheduling is preemptive.
17. What is Context Switch? - Switching the CPU to another process requires saving the state of the old process and loading the saved state for the new process. This task is known as a context switch. Context-switch time is pure overhead, because the system does no useful work while switching. Its speed varies from machine to machine, depending on the memory speed, the number of registers which must be copied, the existed of special instructions(such as a single instruction to load or store all registers).
18. What is cache memory? - Cache memory is random access memory (RAM) that a computer microprocessor can access more quickly than it can access regular RAM. As the microprocessor processes data, it looks first in the cache memory and if it finds the data there (from a previous reading of data), it does not have to do the more time-consuming reading of data from larger memory.
19. What is a Safe State and what is its use in deadlock avoidance? - When a process requests an available resource, system must decide if immediate allocation leaves the system in a safe state. System is in safe state if there exists a safe sequence of all processes. Deadlock Avoidance: ensure that a system will never enter an unsafe state.
20. What is a Real-Time System? - A real time process is a process that must respond to the events within a certain time period. A real time operating system is an operating system that can run real time processes successfully
21. What are the basic functions of an operating system?
22. Explain briefly about, processor, assembler, compiler, loader, linker and the functions executed by them.
23. What are the difference phases of software development? Explain briefly?
24. Differentiate between RAM and ROM?
25. What is DRAM? In which form does it store data?
26. What is cache memory?
27. What is hard disk and what is its purpose?
28. Differentiate between Complier and Interpreter?
29. What are the different tasks of Lexical analysis?
30. What are the different functions of Syntax phase, Scheduler?
31. What are the main difference between Micro-Controller and Micro- Processor?
32. Describe different job scheduling in operating systems.
33. What is a Real-Time System ?
34. What is the difference between Hard and Soft real-time systems ?
35. What is a mission critical system ?
36. What is the important aspect of a real-time system ?
37. If two processes which shares same system memory and system clock in a distributed system, What is it called?
38. What is the state of the processor, when a process is waiting for some event to occur?
39. What do you mean by deadlock?
40. Explain the difference between micro kernel and macro kernel.
41. Give an example of micro kernel.
42. When would you choose bottom up methodology?
43. When would you choose top down methodology?
44. Write a small dc shell script to find number of FF in the design.
45. Why paging is used ?
46. Which is the best page replacement algorithm and Why? How much time is spent usually in each phases and why?
47. Difference between Primary storage and secondary storage?
48. What is multi tasking, multi programming, multi threading?
49. Difference between multi threading and multi tasking?
50. What is software life cycle?
51. Demand paging, page faults, replacement algorithms, thrashing, etc.
52. Explain about paged segmentation and segment paging
53. While running DOS on a PC, which command would be used to duplicate the entire diskette?
2. Why paging is used? - Paging is solution to external fragmentation problem which is to permit the logical address space of a process to be noncontiguous, thus allowing a process to be allocating physical memory wherever the latter is available.
3. While running DOS on a PC, which command would be used to duplicate the entire diskette? disk copy
4. What resources are used when a thread created? How do they differ from those when a process is created? - When a thread is created the threads does not require any new resources to execute the thread shares the resources like memory of the process to which they belong to. The benefit of code sharing is that it allows an application to have several different threads of activity all within the same address space. Whereas if a new process creation is very heavyweight because it always requires new address space to be created and even if they share the memory then the inter process communication is expensive when compared to the communication between the threads.
5. What is virtual memory? - Virtual memory is hardware technique where the system appears to have more memory that it actually does. This is done by time-sharing, the physical memory and storage parts of the memory one disk when they are not actively being used.
6. What is Throughput, Turnaround time, waiting time and Response time? - Throughput – number of processes that complete their execution per time unit. Turnaround time – amount of time to execute a particular process. Waiting time – amount of time a process has been waiting in the ready queue. Response time – amount of time it takes from when a request was submitted until the first response is produced, not output (for time-sharing environment).
7. What is the state of the processor, when a process is waiting for some event to occur? - Waiting state
8. What is the important aspect of a real-time system or Mission Critical Systems? - A real time operating system has well defined fixed time constraints. Process must be done within the defined constraints or the system will fail. An example is the operating system for a flight control computer or an advanced jet airplane. Often used as a control device in a dedicated application such as controlling scientific experiments, medical imaging systems, industrial control systems, and some display systems. Real-Time systems may be either hard or soft real-time. Hard real-time : Secondary storage limited or absent, data stored in short term memory, or read-only memory (ROM), Conflicts with time-sharing systems, not supported by general-purpose operating systems. Soft real-time : Limited utility in industrial control of robotics, Useful in applications (multimedia, virtual reality) requiring advanced operating-system features.
9. What is the difference between Hard and Soft real-time systems? - A hard real-time system guarantees that critical tasks complete on time. This goal requires that all delays in the system be bounded from the retrieval of the stored data to the time that it takes the operating system to finish any request made of it. A soft real time system where a critical real-time task gets priority over other tasks and retains that priority until it completes. As in hard real time systems kernel delays need to be bounded
10. What is the cause of thrashing? How does the system detect thrashing? Once it detects thrashing, what can the system do to eliminate this problem? - Thrashing is caused by under allocation of the minimum number of pages required by a process, forcing it to continuously page fault. The system can detect thrashing by evaluating the level of CPU utilization as compared to the level of multiprogramming. It can be eliminated by reducing the level of multiprogramming.
11. What is multi tasking, multi programming, multi threading? - Multi programming : Multiprogramming is the technique of running several programs at a time using timesharing. It allows a computer to do several things at the same time. Multiprogramming creates logical parallelism. The concept of multiprogramming is that the operating system keeps several jobs in memory simultaneously. The operating system selects a job from the job pool and starts executing a job, when that job needs to wait for any i/o operations the CPU is switched to another job. So the main idea here is that the CPU is never idle. Multi tasking : Multitasking is the logical extension of multiprogramming .The concept of multitasking is quite similar to multiprogramming but difference is that the switching between jobs occurs so frequently that the users can interact with each program while it is running. This concept is also known as time-sharing systems. A time-shared operating system uses CPU scheduling and multiprogramming to provide each user with a small portion of time-shared system. Multi threading : An application typically is implemented as a separate process with several threads of control. In some situations a single application may be required to perform several similar tasks for example a web server accepts client requests for web pages, images, sound, and so forth. A busy web server may have several of clients concurrently accessing it. If the web server ran as a traditional single-threaded process, it would be able to service only one client at a time. The amount of time that a client might have to wait for its request to be serviced could be enormous. So it is efficient to have one process that contains multiple threads to serve the same purpose. This approach would multi thread the web-server process, the server would create a separate thread that would listen for client requests when a request was made rather than creating another process it would create another thread to service the request. To get the advantages like responsiveness, Resource sharing economy and utilization of multiprocessor architectures multi threading concept can be used.
12. What is hard disk and what is its purpose? - Hard disk is the secondary storage device, which holds the data in bulk, and it holds the data on the magnetic medium of the disk.Hard disks have a hard platter that holds the magnetic medium, the magnetic medium can be easily erased and rewritten, and a typical desktop machine will have a hard disk with a capacity of between 10 and 40 gigabytes. Data is stored onto the disk in the form of files.
13. What is fragmentation? Different types of fragmentation? - Fragmentation occurs in a dynamic memory allocation system when many of the free blocks are too small to satisfy any request. External Fragmentation : External Fragmentation happens when a dynamic memory allocation algorithm allocates some memory and a small piece is left over that cannot be effectively used. If too much external fragmentation occurs, the amount of usable memory is drastically reduced. Total memory space exists to satisfy a request, but it is not contiguous. Internal Fragmentation : Internal fragmentation is the space wasted inside of allocated memory blocks because of restriction on the allowed sizes of allocated blocks. Allocated memory may be slightly larger than requested memory; this size difference is memory internal to a partition, but not being used
14. What is DRAM? In which form does it store data? - DRAM is not the best, but it's cheap, does the job, and is available almost everywhere you look. DRAM data resides in a cell made of a capacitor and a transistor. The capacitor tends to lose data unless it's recharged every couple of milliseconds, and this recharging tends to slow down the performance of DRAM compared to speedier RAM types.
15. What is Dispatcher? - Dispatcher module gives control of the CPU to the process selected by the short-term scheduler; this involves: Switching context, Switching to user mode, Jumping to the proper location in the user program to restart that program, dispatch latency – time it takes for the dispatcher to stop one process and start another running.
16. What is CPU Scheduler? - Selects from among the processes in memory that are ready to execute, and allocates the CPU to one of them. CPU scheduling decisions may take place when a process: 1.Switches from running to waiting state. 2.Switches from running to ready state. 3.Switches from waiting to ready. 4.Terminates. Scheduling under 1 and 4 is non-preemptive. All other scheduling is preemptive.
17. What is Context Switch? - Switching the CPU to another process requires saving the state of the old process and loading the saved state for the new process. This task is known as a context switch. Context-switch time is pure overhead, because the system does no useful work while switching. Its speed varies from machine to machine, depending on the memory speed, the number of registers which must be copied, the existed of special instructions(such as a single instruction to load or store all registers).
18. What is cache memory? - Cache memory is random access memory (RAM) that a computer microprocessor can access more quickly than it can access regular RAM. As the microprocessor processes data, it looks first in the cache memory and if it finds the data there (from a previous reading of data), it does not have to do the more time-consuming reading of data from larger memory.
19. What is a Safe State and what is its use in deadlock avoidance? - When a process requests an available resource, system must decide if immediate allocation leaves the system in a safe state. System is in safe state if there exists a safe sequence of all processes. Deadlock Avoidance: ensure that a system will never enter an unsafe state.
20. What is a Real-Time System? - A real time process is a process that must respond to the events within a certain time period. A real time operating system is an operating system that can run real time processes successfully
21. What are the basic functions of an operating system?
22. Explain briefly about, processor, assembler, compiler, loader, linker and the functions executed by them.
23. What are the difference phases of software development? Explain briefly?
24. Differentiate between RAM and ROM?
25. What is DRAM? In which form does it store data?
26. What is cache memory?
27. What is hard disk and what is its purpose?
28. Differentiate between Complier and Interpreter?
29. What are the different tasks of Lexical analysis?
30. What are the different functions of Syntax phase, Scheduler?
31. What are the main difference between Micro-Controller and Micro- Processor?
32. Describe different job scheduling in operating systems.
33. What is a Real-Time System ?
34. What is the difference between Hard and Soft real-time systems ?
35. What is a mission critical system ?
36. What is the important aspect of a real-time system ?
37. If two processes which shares same system memory and system clock in a distributed system, What is it called?
38. What is the state of the processor, when a process is waiting for some event to occur?
39. What do you mean by deadlock?
40. Explain the difference between micro kernel and macro kernel.
41. Give an example of micro kernel.
42. When would you choose bottom up methodology?
43. When would you choose top down methodology?
44. Write a small dc shell script to find number of FF in the design.
45. Why paging is used ?
46. Which is the best page replacement algorithm and Why? How much time is spent usually in each phases and why?
47. Difference between Primary storage and secondary storage?
48. What is multi tasking, multi programming, multi threading?
49. Difference between multi threading and multi tasking?
50. What is software life cycle?
51. Demand paging, page faults, replacement algorithms, thrashing, etc.
52. Explain about paged segmentation and segment paging
53. While running DOS on a PC, which command would be used to duplicate the entire diskette?
Common Aptitude question
1. If you had an infinite supply of water and a 5 quart and 3 quart pail, how would you measure exactly 4 quarts?
2. If you could remove any of the 50 states, which state would it be and why?
3. If you are on a boat and you throw out a suitcase, will the level of water increase?
4. There are 3 ants at 3 corners of a triangle, they randomly start moving towards another corner. What is the probability that they don't collide?
5. Three men were renting a motel figuring the room cost 30 dollars they would pitch in ten a piece.The room was only 25 so they each gave the bell boy ten,(tip)the bellboy didn"t think that would be fair so he gave them each back 1 dollar and kept 2 for himself.What happened to the other dollar?
6. You have b boxes and n dollars. If I want any amount of money from 0 to n dollars, you must be able to hand me 0 to b boxes so that I get exactly what I request." The two questions were "What are the restrictions on b and n, and how is money distributed among the boxes?
7. What is the sum of the numbers from 1 to 1000?
8. You are an employer. You have ten employees. Each month, each one of your ten employees gives you ten bags of gold. Each bag of gold has ten pieces of gold in it. Each piece of gold weighs one pound. One of your employees is cheating you by only putting nine pieces of gold in each of his ten bags of gold. You have a scale (not a balance, a scale), and you can only take one measurement from the scale, only one (1) reading.
How can you tell which of the ten employees is cheating you by using this scale and only taking one measurement?
9. How many points are there on the globe where by walking one mile south, one mile east and one mile north you reach the place where you started.
10. How would go about finding out where to look for a book in a library? (You do not know how the books are organized beforehand)
11. Imagine you are standing in front of a mirror, facing it. Raise your left hand. Raise your right hand. Look at your reflection. When you raise your left hand your reflection raises what appears to be his right hand. But when you tilt your head up, your reflection does too, and does not appear to tilt his/her head down. Why is it that the mirror appears to reverse left and right, but not up and down?
12. You have a bucket of jelly beans. Some are red, some are blue, and some green. With your eyes closed, pick out 2 of a like color. How many do you have to grab to be sure you have 2 of the same?
13. You are given a scale which you are to use to measure eight balls. Seven of these balls have the same weight: the eigth ball is heavier than the rest. What is the minimum number of weighs you could perform to find the heaviest of the eight balls?. Remmber it's a scale not a balance. (i.e. It can just tell you if one side is heavier than the other it can't give you the exact weight).
14. How would you design a toaster?
15. How would you design an universal remote control?
16. How would you design a clock for a blind person?
17. How many miles of road are there in the US
18. There are n couples attending a party. Each one shakes hands with the persons he doesn't know. (Assuming each person knows his/her partner) Mary and John are a couple. John asked the rest of the party-attenders how many times he has shaken hands. Each one gives a unique answer. How many times does Mary shake hands?
Second Test
1. 2 pipes A and B can fill a tank in 30minutes and 20 minutes respectively. B filled ¾ of the tank. Then for the rest both A and B filled the tank. How much time it took to fill the entire tank.
2. 5 monkeys eat 5 bananas in 5 minutes. Then how many monkeys can eat 20 bananas in 20 minutes.
3. A does a work in 20 days. A did for 28 days. Then b came. They together take 76 days to complete the 7 job. Find howmany days B complete a work.
4. My house number is
if not multiple by 3 it is with in 50-59
if not multiple by 5 it is with in 60-69
if not multiple by 10 it is with in 70-79
find house number.
5. After 6 years the ratio of age of X and Y will be 5:6. Before 6 years it was 3:4. Find the age of younger one.
6. The arithmetic mean of two numbers is 10 and the geometrid mean is 8. Find the two numbers.
7. 3 consecutive non zero number which of these will result a positive odd integer.
1. x+y+z
2. xy-z
3. x-y-z
8. 420 km distance. It goes at a speed of 10km/hr less than it took 1.4 hour. Find the initial speed.
9. Tem, Harry and Dick are three friends. From these two are musicians.
Tem----Harry
Shorter one is older musician.
Harry----Dick
Shorter one is younger musician.
Dick-----Tem
Taller is the younger musician.
Find the two musician.
10. A’s mother is only daughter of B’s mother. B is A’s what.
11. In a 20 liter mixture of milk and water, the ratio of milk and water is 3:1. How much milk is to be mixed with the mixture so as to make the ratio 4:1.
12. For a party 240 guests were invited. Contractor have gained 12.5% profit. But 30 guests were absent. He charged the same amount for a meal and lost 100 rupees. How much a meal costs.
13. Out of three A,B,C one is thief. All give two statements. One is false another is true. Find the thief.
A-i did not do, B did not do.
B-i did not do, C did not do.
C-i did not do, I donot know who did it.
14. The sides of an isocles tringale are given. The perpendicular distance is given. Find the base of the tringale.(Numerical values are given, but I donot remember)
15. In a tringale length of 3 sides are given. It is given to find the highest length of scale which can be used to measure all the sides.(To find gcf).
16. There is a metallic cylinder of radius r and height h is melted. If the radius of smaller cylinder is r/10 and height is h/10, then howmany small cylinders are made from the molten.
TECHNICAL
18. What is weak typing.
19. What is pure virtual function.
20. Which is not a member of unix shell. (rbash,cbash,nbash,kbash,gbash)
21. Which is an error.
Int *p[3]
Int (*p)[3]
(Int *)(int ,int)
Int (*p[3])
Int *(p[3])
22. Which is not a processor.
(intel,duran,Celeron,athelon)
23. a[5]=={1,2,3,4,5}
printf("%d",a[3]);
printf("%d",3[a]);
printf("%d",*(a+3);
24. what is the output.
if(r= =5!= =4)
printf("inside");
else
printf("outside");
printf("%d",r);
25. for(i=0,j=0;i<10,j<10;i++,j+);
printf("%d",j); (compilation error,run time error,0)
26. Which is not an inter process communication.
(tee,shared memory,pipe,queue,file)
27. for loop on string.
28. Which is not a database.
(oracle,smalltalk,db2,Sybase)
29. #define prod((a>b)?a*a:b*b)
int p==0,q==-1;
prod(p++,q++)
what is result.
30. what is reference.
Some loop statements on "c" are given which are very easy.
2. If you could remove any of the 50 states, which state would it be and why?
3. If you are on a boat and you throw out a suitcase, will the level of water increase?
4. There are 3 ants at 3 corners of a triangle, they randomly start moving towards another corner. What is the probability that they don't collide?
5. Three men were renting a motel figuring the room cost 30 dollars they would pitch in ten a piece.The room was only 25 so they each gave the bell boy ten,(tip)the bellboy didn"t think that would be fair so he gave them each back 1 dollar and kept 2 for himself.What happened to the other dollar?
6. You have b boxes and n dollars. If I want any amount of money from 0 to n dollars, you must be able to hand me 0 to b boxes so that I get exactly what I request." The two questions were "What are the restrictions on b and n, and how is money distributed among the boxes?
7. What is the sum of the numbers from 1 to 1000?
8. You are an employer. You have ten employees. Each month, each one of your ten employees gives you ten bags of gold. Each bag of gold has ten pieces of gold in it. Each piece of gold weighs one pound. One of your employees is cheating you by only putting nine pieces of gold in each of his ten bags of gold. You have a scale (not a balance, a scale), and you can only take one measurement from the scale, only one (1) reading.
How can you tell which of the ten employees is cheating you by using this scale and only taking one measurement?
9. How many points are there on the globe where by walking one mile south, one mile east and one mile north you reach the place where you started.
10. How would go about finding out where to look for a book in a library? (You do not know how the books are organized beforehand)
11. Imagine you are standing in front of a mirror, facing it. Raise your left hand. Raise your right hand. Look at your reflection. When you raise your left hand your reflection raises what appears to be his right hand. But when you tilt your head up, your reflection does too, and does not appear to tilt his/her head down. Why is it that the mirror appears to reverse left and right, but not up and down?
12. You have a bucket of jelly beans. Some are red, some are blue, and some green. With your eyes closed, pick out 2 of a like color. How many do you have to grab to be sure you have 2 of the same?
13. You are given a scale which you are to use to measure eight balls. Seven of these balls have the same weight: the eigth ball is heavier than the rest. What is the minimum number of weighs you could perform to find the heaviest of the eight balls?. Remmber it's a scale not a balance. (i.e. It can just tell you if one side is heavier than the other it can't give you the exact weight).
14. How would you design a toaster?
15. How would you design an universal remote control?
16. How would you design a clock for a blind person?
17. How many miles of road are there in the US
18. There are n couples attending a party. Each one shakes hands with the persons he doesn't know. (Assuming each person knows his/her partner) Mary and John are a couple. John asked the rest of the party-attenders how many times he has shaken hands. Each one gives a unique answer. How many times does Mary shake hands?
Second Test
1. 2 pipes A and B can fill a tank in 30minutes and 20 minutes respectively. B filled ¾ of the tank. Then for the rest both A and B filled the tank. How much time it took to fill the entire tank.
2. 5 monkeys eat 5 bananas in 5 minutes. Then how many monkeys can eat 20 bananas in 20 minutes.
3. A does a work in 20 days. A did for 28 days. Then b came. They together take 76 days to complete the 7 job. Find howmany days B complete a work.
4. My house number is
if not multiple by 3 it is with in 50-59
if not multiple by 5 it is with in 60-69
if not multiple by 10 it is with in 70-79
find house number.
5. After 6 years the ratio of age of X and Y will be 5:6. Before 6 years it was 3:4. Find the age of younger one.
6. The arithmetic mean of two numbers is 10 and the geometrid mean is 8. Find the two numbers.
7. 3 consecutive non zero number which of these will result a positive odd integer.
1. x+y+z
2. xy-z
3. x-y-z
8. 420 km distance. It goes at a speed of 10km/hr less than it took 1.4 hour. Find the initial speed.
9. Tem, Harry and Dick are three friends. From these two are musicians.
Tem----Harry
Shorter one is older musician.
Harry----Dick
Shorter one is younger musician.
Dick-----Tem
Taller is the younger musician.
Find the two musician.
10. A’s mother is only daughter of B’s mother. B is A’s what.
11. In a 20 liter mixture of milk and water, the ratio of milk and water is 3:1. How much milk is to be mixed with the mixture so as to make the ratio 4:1.
12. For a party 240 guests were invited. Contractor have gained 12.5% profit. But 30 guests were absent. He charged the same amount for a meal and lost 100 rupees. How much a meal costs.
13. Out of three A,B,C one is thief. All give two statements. One is false another is true. Find the thief.
A-i did not do, B did not do.
B-i did not do, C did not do.
C-i did not do, I donot know who did it.
14. The sides of an isocles tringale are given. The perpendicular distance is given. Find the base of the tringale.(Numerical values are given, but I donot remember)
15. In a tringale length of 3 sides are given. It is given to find the highest length of scale which can be used to measure all the sides.(To find gcf).
16. There is a metallic cylinder of radius r and height h is melted. If the radius of smaller cylinder is r/10 and height is h/10, then howmany small cylinders are made from the molten.
TECHNICAL
18. What is weak typing.
19. What is pure virtual function.
20. Which is not a member of unix shell. (rbash,cbash,nbash,kbash,gbash)
21. Which is an error.
Int *p[3]
Int (*p)[3]
(Int *)(int ,int)
Int (*p[3])
Int *(p[3])
22. Which is not a processor.
(intel,duran,Celeron,athelon)
23. a[5]=={1,2,3,4,5}
printf("%d",a[3]);
printf("%d",3[a]);
printf("%d",*(a+3);
24. what is the output.
if(r= =5!= =4)
printf("inside");
else
printf("outside");
printf("%d",r);
25. for(i=0,j=0;i<10,j<10;i++,j+);
printf("%d",j); (compilation error,run time error,0)
26. Which is not an inter process communication.
(tee,shared memory,pipe,queue,file)
27. for loop on string.
28. Which is not a database.
(oracle,smalltalk,db2,Sybase)
29. #define prod((a>b)?a*a:b*b)
int p==0,q==-1;
prod(p++,q++)
what is result.
30. what is reference.
Some loop statements on "c" are given which are very easy.
Common HR question
Warm-Up Questions
• What made you apply for this position?
• How did you hear about this job opening?
• Briefly, would you summarize your work history & education for me?
Work History
• What special aspects of your work experience have prepared you for this job?
• Can you describe for me one or two of your most important accomplishments?
• How much supervision have you typically received in your previous job?
• Describe for me one or two of the biggest disappointments in your work history?
• Why are you leaving your present job? (or, Why did you leave your last job?)
• What is important to you in a company? What things do you look for in an organization?
Job Performance
• Everyone has strengths & weaknesses as workers. What are your strong points for this job?
• What would you say are areas needing improvement?
• How did your supervisor on your most recent job evaluate your job performance? What were some of the good points & bad points of that rating?
• When you have been told , or discovered for yourself , a problem in your job performance, what have you typically done? Can you give me an example?
• Do you prefer working alone or in groups?
• What kind of people do you find it most difficult to work with? Why?
• Starting with your last job, tell me about any of your achievements that were recognized by your superiors.
• Can you give me an example of your ability to manage or supervise others?
• What are some things you would like to avoid in a job? Why?
• In your previous job what kind of pressures did you encounter?
• What would you say is the most important thing you are looking for in a job?
• What are some of the things on your job you feel you have done particularly well or in which you have achieved the greatest success? Why do you feel this way?
• What were some of the things about your last job that you found most difficult to do?
• What are some of the problems you encounter in doing your job? Which one frustrates you the most? What do you usually do about it?
• What are some things you particularly liked about your last job?
• Do you consider your progress on the job representative of your ability? Why?
• How do you feel about the way you & others in the department were managed by your supervisor?
• If I were to ask your present (most recent) employer about your ability as a____________________, what would he/she say?
EDUCATION
• What special aspects of your education or training have prepared you for this job?
• What courses in school have been of most help in doing your job?
CAREER- GOALS
• What is your long-term employment or career objective?
• What kind of job do you see yourself holding five years from now?
• What do you feel you need to develop in terms of skill & knowledge in order to be ready for that opportunity?
• Why might you be successful in such a job?
• How does this job fit in with your overall career goals?
• Who or what in your life would you say influenced you most with career objectives?
• Can you pinpoint any specific things in your past experience that affected your present career objectives?
• What would you most like to accomplish if you had this job?
• What might make you leave this job?
SELF-ASSESSMENT
• What kind of things do you feel most confident in doing?
• Can you describe for me a difficult obstacle you have had to overcome? How did you handle it? How do you feel this experience affected your personality or ability?
• How would you describe yourself as a person?
• What do you think are the most important characteristics & abilities a person must possess to become a successful ( )? How do you rate yourself in these areas?
• Do you consider yourself a self-starter? If so, explain why ( and give examples)
• What do you consider to be your greatest achievements to date? Why?
• What things give you the greatest satisfaction at work?
• What things frustrate you the most? How do you usually cope with them?
CREATIVITY
• In your work experience, what have you done that you consider truly creative?
• Can you think of a problem you have encountered when the old solutions didn't work & when you came up with new solutions?
• Of your creative accomplishments big or small , at work or home, what gave you the most satisfaction?
• What kind of problems have people recently called on you to solve? Tell me what you have devised.
DECISIVENESS
• Do you consider yourself to be thoughtful, analytical or do you usually make up your mind fast? Give an example. (Watch time taken to respond)
• What was your most difficult decision in the last six months? What made it difficult?
• The last time you did not know what decision to make, what did you do?
• How do you go about making an important decision affecting your career?
• What was the last major problem that you were confronted with? What action did you take on it?
RANGE OF INTERESTS
• What organizations do you belong to?
• Tell me specifically what you do in the civic activities in which you participate. (Leading questions in selected areas. i.e. sports, economics, current events, finance.)
• How do you keep up with what's going on in your company / your industry/ your profession?
MOTIVATION
• What is your professional goal?
• Can you give me examples of experience on the job that you felt were satisfying?
• Do you have a long & short-term plan for your department? Is it realistic?
• Did you achieve it last year?
• Describe how you determine what constitutes top priorities in the performance of your job.
WORK STANDARDS
• What are your standards of success in your job?
• In your position, how would you define doing a job? On what basis was your definition determined?
• When judging the performance of your subordinate, what factors or characteristics are most important to you?
LEADERSHIP
• In your present job what approach do you take to get your people together to establish a common approach to a problem?
• What approach do you take in getting your people to accept your ideas or department goals?
• What specifically do you do to set an example for your employees?
• How frequently do you meet with your immediate subordinates as a group?
• What sort of leader do your people feel you are? Are you satisfied?
• How do you get people who do not want to work together to establish a common approach to a problem?
• If you do not have much time & they hold seriously differing views, what would be your approach?
• How would you describe your basic leadership style? Give specific examples of how you practice this?
• Do you feel you work more effectively on a one to one basis or in a group situation?
• Have you ever led a task force or committee or any group who doesn't report to you, but from whom you have to get work? How did you do it? What were the satisfactions & disappointments? How would you handle the job differently?
ORAL PRESENTATION SKILLS
• Have you ever done any public or group speaking? Recently? Why? How did it go?
• Have you made any individual presentations recently? How did you prepare?
WRITTEN COMMUNICATION SKILLS
• Would you rather write a report or give a verbal report? Why?
• What kind of writing have you done? For a group? For an individual?
• What is the extent of your participation in major reports that have to be written?
FLEXIBILITY
• What was the most important idea or suggestion you received recently from your employees? What happened as a result?
• What do you think about the continuous changes in company operating policies & procedures?
• How effective has your company been in adapting its policies to fit a changing environment?
• What was the most significant change made in your company in the last six months which directly affected you, & how successfully do you think you implemented this change?
STRESS TOLERANCE
• Do you feel pressure in your job? Tell me about it.
• What has been the highest pressure situation you have been under in recent years? How did you cope with it?
STABILITY & MATURITY
• Describe your most significant success & failure in the last two years.
• What do you like to do best?
• What do you like to do least?
• What in your last review did your supervisor suggest needed improvement?
• What have you done about it?
INTEREST IN SELF DEVELOPMENT
• What has been the most important person or event in your own self development?
• How much of your education did you earn?
• What kind of books & other publications do you read?
• Have you taken a management development course?
How are you helping your subordinates develop themselves?
50 Aptitude questions from latest placement papers
1. If a boat is moving in upstream with velocity of 14 km/hr and goes downstream with a velocity of 40 km/hr, then what is the speed of the stream ?
(a) 13 km/hr
(b) 26 km/hr
(c) 34 km/hr
(d) none of these
Ans. A
2. Find the value of ( 0.75 * 0.75 * 0.75 - 0.001 ) / ( 0.75 * 0.75 - 0.075 + 0.01)
(a) 0.845
(b) 1.908
(c) 2.312
(d) 0.001
Ans. A
3. A can have a piece of work done in 8 days, B can work three times faster than the A, C can work five times faster than A. How many days will they take to do the work together ?
(a) 3 days
(b) 8/9 days
(c) 4 days
(d) can't say
Ans. B
4. A car travels a certain distance taking 7 hrs in forward journey, during the return journey increased speed 12km/hr takes the times 5 hrs.What is the distance traveled
(a) 210 kms
(b) 30 kms
(c) 20 kms
(c) none of these
Ans. B
5. Instead of multiplying a number by 7, the number is divided by 7. What is the percentage of error obtained?
6. Find (7x + 4y ) / (x-2y) if x/2y = 3/2 ?
(a) 6
(b) 8
(c) 7
(d) data insufficient
Ans. C
7. A man buys 12 lts of liquid which contains 20% of the liquid and the rest is water. He then mixes it with 10 lts of another mixture with 30% of liquid.What is the % of water in the new mixture?
8. If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for Rs.15, then what is the percentage of gain?
9. Pipe A can fill a tank in 30 mins and Pipe B can fill it in 28 mins.If 3/4th of the tank is filled by Pipe B alone and both are opened, how much time is required by both the pipes to fill the tank completely ?
10. If on an item a company gives 25% discount, they earn 25% profit. If they now give 10% discount then what is the profit percentage.
(a) 40%
(b) 55%
(c) 35%
(d) 30%
Ans. D
11. A certain number of men can finish a piece of work in 10 days. If however there were 10 men less it will take 10 days more for the work to be finished. How many men were there originally?
(a) 110 men
(b) 130 men
(c) 100 men
(d) none of these
Ans. A
12. In simple interest what sum amounts of Rs.1120/- in 4 years and Rs.1200/- in 5 years ?
(a) Rs. 500
(b) Rs. 600
(c) Rs.800 (d) Rs. 900
Ans. C
13. If a sum of money compound annually amounts of thrice itself in 3 years. In how many years
will it become 9 times itself.
(a) 6
(b) 8
(c) 10
(d) 12
Ans A
14. Two trains move in the same direction at 50 kmph and 32 kmph respectively. A man in the slower train
observes the 15 seconds elapse before the faster train completely passes by him.
What is the length of faster train ?
(a) 100m
(b) 75m
(c) 120m
(d) 50m
Ans B
15. How many mashes are there in 1 squrare meter of wire gauge if each mesh
is 8mm long and 5mm wide ?
(a) 2500
(b) 25000
(c) 250
(d) 250000
Ans B
16. x% of y is y% of ?
(a) x/y
(b) 2y
(c) x
(d) can't be determined
Ans. C
17. The price of sugar increases by 20%, by what % should a housewife reduce the consumption of sugar so that expenditure on sugar can be same as before ?
(a) 15%
(b) 16.66%
(c) 12%
(d) 9%
Ans B
18. A man spends half of his salary on household expenses, 1/4th for rent, 1/5th for travel expenses, the man deposits the rest in a bank. If his monthly deposits in the bank amount 50, what is his monthly salary ?
(a) Rs.500
(b) Rs.1500
(c) Rs.1000
(d) Rs. 900
Ans C
20. The population of a city increases @ 4% p.a. There is an additional annual increase of 4% of the population due to the influx of job seekers, find the % increase in population after 2 years ?
21. The ratio of the number of boys and girls in a school is 3:2 Out of these 10% the boys and 25% of girls are scholarship holders. % of students who are not scholarship holders.?
22. 15 men take 21 days of 8 hrs. each to do a piece of work. How many days of 6 hrs. each would it take for 21 women if 3 women do as much work as 2 men?
(a) 30
(b) 20
(c) 19
(d) 29
Ans. A
23. A cylinder is 6 cms in diameter and 6 cms in height. If spheres of the same size are made from the material obtained, what is the diameter of each sphere?
(a) 5 cms
(b) 2 cms
(c) 3 cms
(d) 4 cms
Ans C
24. A rectangular plank (2)1/2 meters wide can be placed so that it is on either side of the diagonal of a square shown below.(Figure is not available)What is the area of the plank?
Ans :7*(2)1/2
25. The difference b/w the compound interest payable half yearly and the simple interest on a certain sum lent out at 10% p.a for 1 year is Rs 25. What is the sum?
(a) Rs. 15000
(b) Rs. 12000
(c) Rs. 10000
(d) none of these
Ans C
26. What is the smallest number by which 2880 must be divided in order to make it into a perfect square ?
(a) 3
(b) 4
(c) 5
(d) 6
Ans. C
27. A father is 30 years older than his son however he will be only thrice as old as the son after 5 years
what is father's present age ?
(a) 40 yrs
(b) 30 yrs
(c) 50 yrs
(d) none of these
Ans. A
28. An article sold at a profit of 20% if both the cost price and selling price would be Rs.20/- the profit would be 10% more. What is the cost price of that article?
29. If an item costs Rs.3 in '99 and Rs.203 in '00.What is the % increase in price?
(a) 200/3 %
(b) 200/6 %
(c) 100%
(d) none of these
Ans. A
LOGICAL SECTION
Directions: For questions 30-39 fill the missing number or letter in the given series
30. a, c, e, g, _
(a) h
(b) i
(c) d
(d) j
Ans. B
31. a, e, i, m, q, u, _, _
(a) y,c
(b) b,f
(c) g,i
(d) none
Ans. A
32. ay , bz , cw , dx ,__
(a) gu
(b) ev
(c) fv
(d) eu
Ans. D
33. 2, 3, 5, 7, 11, __
(a) 15
(b) 9
(c)13
(d) 12
Ans. C (series of prime numbers)
*34. kp , lo , mn , __
(a) nm
(b) np
(c) op
(d) pq
Ans. A
35. R,M,__,F,D,__
(a) I, C
(b) A, Q
(c) L, N
(d) B, Q
Ans. A
36. ___, ayw, gec, mki, sqo
(a) awx
(b) usq
(c) prs
(d) lmn
Ans. B
37. 1, 3, 4, 8, 15, 27, __
(a) 60
(b) 59
(c) 43
(d) 50
Ans D
38. 0, 2, 3, 5, 8, 10, 15, 17, 24, 26,__
(a) 45
(b) 55
(c) 35
(d) 48
Ans. C
39. 2, 5, 9, 19, 37,__
(a) 64
(b) 55
(c) 75
(d) 40
Ans C
Directions for questions 40 to 45: Select the alternative that logically follows form the two given statements.
40. All scientists are fools. All fools are literates.
(a)All literates are scientists
(b) All scientists are literates
(c) No scientists are literates
(d) Both (a) and (b) are correct
Ans. B
41. No apple is an orange. All bananas are oranges.
(a) All apples are oranges
(b) Some apples are oranges
(c) No apple is a banana
(d) None of the above
Ans. A
42. All pens are elephants. Some elephants are cats.
(a) Some pens are cats
(b) No pens are cats
(c) All pens are cats
(d) None of the above
Ans. D
43. All shares are debentures. No debentures are deposits.
(a) All shares are deposits
(b) Some shares are deposits
(c) No shares are deposits
(d) None of the above
Ans. C
44. Many fathers are brothers. All brothers are priests.
(a) No father is a priest
(b) Many fathers are not priests
(c) Many fathers are priests
(d) Both (b) and (c)
Ans. B
45. Some green are blue. No blue are white.
(a) No green are white
(b) Some green are white
(c) No green are white
(d) None of the above
Ans. B
46. If the word "CODING" is represented as DPEJOH , then the word "CURFEW" can be represented?
(a) dvsgfx
(b) dvshfx
(c) dgshfx
(d) dtsgfy
Ans. A
47. If in a certain code "RANGE" is coded as 12345 and "RANDOM" is coded as 123678, then the code for the word "MANGO" would be
(a) 82357
(b) 84563
(c) 82346
(d) 82543
Ans. D
Directions for questions 48-50:The questions are based on the following data
In a class of 150 students 55 speak English;85 speak Telugu and 30 speak neither English nor Telugu
48. How many speak both English and Telugu?
(a) 10
(b) 15
(c) 20
(d) 12
Ans. C
49.How many speak only Telugu?
(a) 55
(b) 45
(c) 65
(d) none of the above
Ans.C
50.How many speak at least one of the two languages?
(a) 120
(b) 100
(c) 250
(d) 50
Ans. A
(a) 13 km/hr
(b) 26 km/hr
(c) 34 km/hr
(d) none of these
Ans. A
2. Find the value of ( 0.75 * 0.75 * 0.75 - 0.001 ) / ( 0.75 * 0.75 - 0.075 + 0.01)
(a) 0.845
(b) 1.908
(c) 2.312
(d) 0.001
Ans. A
3. A can have a piece of work done in 8 days, B can work three times faster than the A, C can work five times faster than A. How many days will they take to do the work together ?
(a) 3 days
(b) 8/9 days
(c) 4 days
(d) can't say
Ans. B
4. A car travels a certain distance taking 7 hrs in forward journey, during the return journey increased speed 12km/hr takes the times 5 hrs.What is the distance traveled
(a) 210 kms
(b) 30 kms
(c) 20 kms
(c) none of these
Ans. B
5. Instead of multiplying a number by 7, the number is divided by 7. What is the percentage of error obtained?
6. Find (7x + 4y ) / (x-2y) if x/2y = 3/2 ?
(a) 6
(b) 8
(c) 7
(d) data insufficient
Ans. C
7. A man buys 12 lts of liquid which contains 20% of the liquid and the rest is water. He then mixes it with 10 lts of another mixture with 30% of liquid.What is the % of water in the new mixture?
8. If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for Rs.15, then what is the percentage of gain?
9. Pipe A can fill a tank in 30 mins and Pipe B can fill it in 28 mins.If 3/4th of the tank is filled by Pipe B alone and both are opened, how much time is required by both the pipes to fill the tank completely ?
10. If on an item a company gives 25% discount, they earn 25% profit. If they now give 10% discount then what is the profit percentage.
(a) 40%
(b) 55%
(c) 35%
(d) 30%
Ans. D
11. A certain number of men can finish a piece of work in 10 days. If however there were 10 men less it will take 10 days more for the work to be finished. How many men were there originally?
(a) 110 men
(b) 130 men
(c) 100 men
(d) none of these
Ans. A
12. In simple interest what sum amounts of Rs.1120/- in 4 years and Rs.1200/- in 5 years ?
(a) Rs. 500
(b) Rs. 600
(c) Rs.800 (d) Rs. 900
Ans. C
13. If a sum of money compound annually amounts of thrice itself in 3 years. In how many years
will it become 9 times itself.
(a) 6
(b) 8
(c) 10
(d) 12
Ans A
14. Two trains move in the same direction at 50 kmph and 32 kmph respectively. A man in the slower train
observes the 15 seconds elapse before the faster train completely passes by him.
What is the length of faster train ?
(a) 100m
(b) 75m
(c) 120m
(d) 50m
Ans B
15. How many mashes are there in 1 squrare meter of wire gauge if each mesh
is 8mm long and 5mm wide ?
(a) 2500
(b) 25000
(c) 250
(d) 250000
Ans B
16. x% of y is y% of ?
(a) x/y
(b) 2y
(c) x
(d) can't be determined
Ans. C
17. The price of sugar increases by 20%, by what % should a housewife reduce the consumption of sugar so that expenditure on sugar can be same as before ?
(a) 15%
(b) 16.66%
(c) 12%
(d) 9%
Ans B
18. A man spends half of his salary on household expenses, 1/4th for rent, 1/5th for travel expenses, the man deposits the rest in a bank. If his monthly deposits in the bank amount 50, what is his monthly salary ?
(a) Rs.500
(b) Rs.1500
(c) Rs.1000
(d) Rs. 900
Ans C
20. The population of a city increases @ 4% p.a. There is an additional annual increase of 4% of the population due to the influx of job seekers, find the % increase in population after 2 years ?
21. The ratio of the number of boys and girls in a school is 3:2 Out of these 10% the boys and 25% of girls are scholarship holders. % of students who are not scholarship holders.?
22. 15 men take 21 days of 8 hrs. each to do a piece of work. How many days of 6 hrs. each would it take for 21 women if 3 women do as much work as 2 men?
(a) 30
(b) 20
(c) 19
(d) 29
Ans. A
23. A cylinder is 6 cms in diameter and 6 cms in height. If spheres of the same size are made from the material obtained, what is the diameter of each sphere?
(a) 5 cms
(b) 2 cms
(c) 3 cms
(d) 4 cms
Ans C
24. A rectangular plank (2)1/2 meters wide can be placed so that it is on either side of the diagonal of a square shown below.(Figure is not available)What is the area of the plank?
Ans :7*(2)1/2
25. The difference b/w the compound interest payable half yearly and the simple interest on a certain sum lent out at 10% p.a for 1 year is Rs 25. What is the sum?
(a) Rs. 15000
(b) Rs. 12000
(c) Rs. 10000
(d) none of these
Ans C
26. What is the smallest number by which 2880 must be divided in order to make it into a perfect square ?
(a) 3
(b) 4
(c) 5
(d) 6
Ans. C
27. A father is 30 years older than his son however he will be only thrice as old as the son after 5 years
what is father's present age ?
(a) 40 yrs
(b) 30 yrs
(c) 50 yrs
(d) none of these
Ans. A
28. An article sold at a profit of 20% if both the cost price and selling price would be Rs.20/- the profit would be 10% more. What is the cost price of that article?
29. If an item costs Rs.3 in '99 and Rs.203 in '00.What is the % increase in price?
(a) 200/3 %
(b) 200/6 %
(c) 100%
(d) none of these
Ans. A
LOGICAL SECTION
Directions: For questions 30-39 fill the missing number or letter in the given series
30. a, c, e, g, _
(a) h
(b) i
(c) d
(d) j
Ans. B
31. a, e, i, m, q, u, _, _
(a) y,c
(b) b,f
(c) g,i
(d) none
Ans. A
32. ay , bz , cw , dx ,__
(a) gu
(b) ev
(c) fv
(d) eu
Ans. D
33. 2, 3, 5, 7, 11, __
(a) 15
(b) 9
(c)13
(d) 12
Ans. C (series of prime numbers)
*34. kp , lo , mn , __
(a) nm
(b) np
(c) op
(d) pq
Ans. A
35. R,M,__,F,D,__
(a) I, C
(b) A, Q
(c) L, N
(d) B, Q
Ans. A
36. ___, ayw, gec, mki, sqo
(a) awx
(b) usq
(c) prs
(d) lmn
Ans. B
37. 1, 3, 4, 8, 15, 27, __
(a) 60
(b) 59
(c) 43
(d) 50
Ans D
38. 0, 2, 3, 5, 8, 10, 15, 17, 24, 26,__
(a) 45
(b) 55
(c) 35
(d) 48
Ans. C
39. 2, 5, 9, 19, 37,__
(a) 64
(b) 55
(c) 75
(d) 40
Ans C
Directions for questions 40 to 45: Select the alternative that logically follows form the two given statements.
40. All scientists are fools. All fools are literates.
(a)All literates are scientists
(b) All scientists are literates
(c) No scientists are literates
(d) Both (a) and (b) are correct
Ans. B
41. No apple is an orange. All bananas are oranges.
(a) All apples are oranges
(b) Some apples are oranges
(c) No apple is a banana
(d) None of the above
Ans. A
42. All pens are elephants. Some elephants are cats.
(a) Some pens are cats
(b) No pens are cats
(c) All pens are cats
(d) None of the above
Ans. D
43. All shares are debentures. No debentures are deposits.
(a) All shares are deposits
(b) Some shares are deposits
(c) No shares are deposits
(d) None of the above
Ans. C
44. Many fathers are brothers. All brothers are priests.
(a) No father is a priest
(b) Many fathers are not priests
(c) Many fathers are priests
(d) Both (b) and (c)
Ans. B
45. Some green are blue. No blue are white.
(a) No green are white
(b) Some green are white
(c) No green are white
(d) None of the above
Ans. B
46. If the word "CODING" is represented as DPEJOH , then the word "CURFEW" can be represented?
(a) dvsgfx
(b) dvshfx
(c) dgshfx
(d) dtsgfy
Ans. A
47. If in a certain code "RANGE" is coded as 12345 and "RANDOM" is coded as 123678, then the code for the word "MANGO" would be
(a) 82357
(b) 84563
(c) 82346
(d) 82543
Ans. D
Directions for questions 48-50:The questions are based on the following data
In a class of 150 students 55 speak English;85 speak Telugu and 30 speak neither English nor Telugu
48. How many speak both English and Telugu?
(a) 10
(b) 15
(c) 20
(d) 12
Ans. C
49.How many speak only Telugu?
(a) 55
(b) 45
(c) 65
(d) none of the above
Ans.C
50.How many speak at least one of the two languages?
(a) 120
(b) 100
(c) 250
(d) 50
Ans. A
Saturday, July 14, 2007
Computational science
Computation is now regarded as an equal and indispensable partner, along with theory and experiment, in the advance of scientific knowledge and engineering practice. Numerical simulation enables the study of complex systems and natural phenomena that would be too expensive or dangerous, or even impossible, to study by direct experimentation. The quest for ever higher levels of detail and realism in such simulations requires enormous computational capacity, and has provided the impetus for dramatic breakthroughs in computer algorithms and architectures. Due to these advances, computational scientists and engineers can now solve large-scale problems that were once thought intractable.
Computational science and engineering (CSE) is a rapidly growing multidisciplinary area with connections to the sciences, engineering, mathematics and computer science. CSE focuses on the development of problem-solving methodologies and robust tools for the solution of scientific and engineering problems. We believe that CSE will play an important if not dominating role for the future of the scientific discovery process and engineering design.
Computational science and engineering (CSE) is a rapidly growing multidisciplinary area with connections to the sciences, engineering, mathematics and computer science. CSE focuses on the development of problem-solving methodologies and robust tools for the solution of scientific and engineering problems. We believe that CSE will play an important if not dominating role for the future of the scientific discovery process and engineering design.
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