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ECE :: Microprocessors

  1. A modem is connected to PC at

  2. A.
    serial port
    B.
    parallel port
    C.
    SCSI port
    D.
    input port

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  3. Assertion (A): The data bus and address bus of 8085 are multiplexed.

    Reason (R): Multiplexing reduces the number of pins.

  4. A.
    Both A and R are correct and R is correct explanation of A
    B.
    Both A and R are correct but R is not correct explanation of A
    C.
    A is correct R is wrong
    D.
    A is wrong R is correct

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  5. Consider the following statements about 'Functions' in C

    1. A function can be called any number of times.
    2. A function gets called when the function name is followed by a semicolon.
    3. The order in which functions are defined in a program and the order in which they are called must be the same.
    Which of the above statements are correct?

  6. A.
    All
    B.
    1 and 2 only
    C.
    1 and 3 only
    D.
    2 and 3 only

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  7. A failure rate of 0.01 percent in 1000 hours in a memory corresponds to an MTBF of

  8. A.
    1000 hours
    B.
    100000 hours
    C.
    10 hours
    D.
    100 hours

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  9. Which of the following is not a valid real constant?

  10. A.
    -73.1
    B.
    10251,3
    C.
    10.23
    D.
    -5.7381

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  11. Consider the expression b = acd (xz). The correct C statement for above expression is

  12. A.
    a c d (x * z)
    B.
    a* c* d* (x z)
    C.
    a * c * d (x * z)
    D.
    None of the above

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  13. Which is a valid Java variable?

  14. A.
    1 a b
    B.
    56 a
    C.
    a 56
    D.
    5 a 6

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  15. When we use RRC instruction once in 8085, the number is

  16. A.
    multiplied by 2
    B.
    divided by 2
    C.
    multiplied by 4
    D.
    divided by 4

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  17. Read the following statements about sets

    1. If A and B are sets then A + B denotes union of sets A and B.
    2. The union of A and B is that set whose elements are in either A or B or both.
    3. If A and B are sets, then difference of sets A and B is denoted by A - B.
    4. A - B in the set obtained by removing elements of A from B.
    Which of the above are true?

  18. A.
    All
    B.
    1, 2 and 3 only
    C.
    2 and 3 only
    D.
    1 and 4 only

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