17. Work expands so as to fill the time available for its completion. The general recognition of this fact is shown in the proverbial phrase,’ It is the busiest man who has time to spare’. Thus, an elderly lady at leisure can spend the entire day writing a postcard to her niece. An hour will be spent in writing a postcard , another hunting for spectacles, half an hour to search for the address , an hour and a quarter in composition and twenty minutes in deciding whether or not to take an umbrella when going to the pillar box in the street. The total effort that could occupy a busy man for three minutes, all told may in this fashion leave another person completely exhausted after a day of doubt ,anxiety and toil. What happens when the time to be spent on some work increases?
A.the work is done smoothly.
B.the work is done leisurely.
C.work consumes all the time.
D.The work needs additional time.
Answer: C
18. What is the total time spent by the elderly lady in writing a postcard?
A.Three minutes.
B.four hours and five minutes
C.half day
D.the entire day.
Answer: D
19. Who is the person likely to take more time to do work.:
A.a busy man.
B.a man of leisure.
C.an elderly person.
D.an exhausted person.
Answer: B
20. Explain the sentence : work expands so as to fill the time available for its completion’.
A.The more work there is to be done , the more time needed.
B.whatever time is available for a given amount of work, all of it will be used.
C.If you have more time you can do some work.
D.If you have some important work to do , you should always have some additional time
Answer: B
21. Clock speed is measured in
A.bits per second
B.baud
C.bytes
D.Hertz
Answer: D
22. Which of the following is the 1’s complement of 10?
A.01
B.110
C.11
D.10
Answer: A
23. On-chip cache has
A.lower access time than RAM
B.larger capacity than off chip cache
C.its own data bus
D.become obsolete
Answer: A
24. A computer Program that translates one program instruction at a time into machine language is called a/an
A.Interpreter
B.CPU
C.Compiler
D.Simulator
Answer: A
25. How many address lines are needed to address each machine location in a 2048 x 4 memory chip?
A.10
B.11
C.12
D.8
Answer: B
26. Which of the following involves context switch,
A.system call
B.priviliged instruction
C.floating poitnt exception
D.all the above
Answer: A
27. Semaphore is used for
A.synchronization
B.dead-lock avoidence
C.box
D.None
Answer: A
28. A technique used by codes to convert an analog signal into a digital bit stream is known as
A.Pulse code modulation
B.Pulse stretcher
C.Query processing
D.Queue management
Answer: A
29. A storage area used to store data to a compensate for the difference in speed at which the different units can handle data is
A.Memory
B.Buffer
C.Accumulator
D.Address
Answer: B
30. The minimum number of MOS transistors required to make a dynamic RAM cell is
A.1
B.2
C.3
D.4
Answer: A
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