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ECE :: Microprocessors

Microprocessors - Section 1
Microprocessors - Section 2
Microprocessors - Section 3
Microprocessors - Section 4
Microprocessors - Section 5
Microprocessors - Section 6
Microprocessors - Section 7
Microprocessors - Section 8
Microprocessors - Section 9
Microprocessors - Section 10
Microprocessors - Section 11
Microprocessors - Section 12
Microprocessors - Section-13

  1. Which of the following is not valid integer variable in FORTRAN 77?

    2. A.
    MBR
    B.
    LOTS
    C.
    JAMMU
    D.
    BRG

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  2. Which of the following is not an integer constant?

    3. A.
    2.3
    B.
    156231
    C.
    10
    D.
    -256

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  3. Assertion (A): To add 8 bit words, two 1C 74181 can be cascaded.

    Reason (R): In 1C 74181 a sum greater than 15 leads to high carry out.

    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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  4. Consider the following tasks in a micro computer

    1. Receiving data and instruction
    2. Performing arithmetic computation
    3. Performing logical computations
    4. Storing data and instructions
    Which of the above are performed by ALU?

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

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  5. Consider the following DO statement in FORTRAN 77

    DO 25 J = 1, 7

     The number of DO loop executions in the above statement is

    6. A.
    7
    B.
    6
    C.
    1
    D.
    8

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  6. Initially the number decimal 8 is stored. If instruction RAL is executed twice, the final number stored will be

    7. A.
    decimals 8
    B.
    decimal 16
    C.
    decimal 32
    D.
    decimal 2

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  7. In Java 31% gives an answer

    8. A.
    3
    B.
    4
    C.
    3 / 4
    D.
    4 / 3

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  8. For the expression cos (ωt + 0) the correct Pascal equivalent is

    9. A.
    BETA * JCOS (OMEGA * T + THETA) / SQRT (SQR (BETA) + SQR (OMEGA))
    B.
    BETA COS (OMEGA * T + THETA) / SQRT [SQR (BETA) + SQR (OMEGA)]
    C.
    BETA COS (OMEGA T + THETA) / SQRT [SQR (BETA) + SQR (OMEGA)]
    D.
    None of the above

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  9. Consider the following features of 'structures' in C?

    1. The values of a structure variable can be assigned to another structure variable of the same type using the assignment operator.
    2. One structure can be nested within another structure.
    3. A variable structure can also be passed to a function.
    Which of the above are correct?

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

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  10. Assertion (A): In 8085 SP and PC are 8 bit each.

    Reason (R): 8085 is an 8 bit microprocessor.

    11. 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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