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ECE :: Digital Electronics

Digital Electronics - Section 1
Digital Electronics - Section 2
Digital Electronics - Section 3
Digital Electronics - Section 4
Digital Electronics - Section 5
Digital Electronics - Section 6
Digital Electronics - Section 7
Digital Electronics - Section 8
Digital Electronics - Section 9
Digital Electronics - Section 10
Digital Electronics - Section 11
Digital Electronics - Section 12
Digital Electronics - Section 13
Digital Electronics - Section 14
Digital Electronics - Section 15
Digital Electronics - Section 16
Digital Electronics - Section 17
Digital Electronics - Section 18
Digital Electronics - Section 19
Digital Electronics - Section 20
Digital Electronics - Section 21
Digital Electronics - Section 22
Digital Electronics - Section 23
Digital Electronics - Section 24
Digital Electronics - section-25
Digital Electronics - Section-26

  1. Start and stop bit do not contain any information but are used in serial communication for

    2. A.
    error correction
    B.
    error detection
    C.
    synchronization
    D.
    slowing down the communication

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  2. Which of the following parameters is not specified for digital ICs?

    3. A.
    Gate dissipation
    B.
    Propagation delay
    C.
    Noise margin
    D.
    Bandwidth

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  3. A binary adder has

    4. A.
    one half adder
    B.
    one half adder and 2 full adders
    C.
    two half adders
    D.
    one half adder and many full adders

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  4. Program counter in a digital computer

    5. A.
    counts the number of programs run in the machine
    B.
    counts the number of times a subroutine
    C.
    counts the number of time the loops are executed
    D.
    points the memory address of the current or the next instruction

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  5. Which are the pending interrupts?

    6. A.
    5.5
    B.
    6.5
    C.
    7.5
    D.
    None

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  6. The logical expression Y = A + AB is equivalent to

    7. A.
    Y = AB
    B.
    Y = AB
    C.
    Y = A + B
    D.
    Y = A + B

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  7. A quantization error is an essential aspect of ADC

    8. A.
    True
    B.
    False

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  8. Schmitt trigger is used for wave shaping.

    9. A.
    True
    B.
    False

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  9. Fundamental mode is another name for

    10. A.
    level operation
    B.
    pulse operation
    C.
    clock operation
    D.
    none of these

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  10. Assertion (A): Decoder is not a combinational circuit.

    Reason (R): Every memory element of semi conductor form has a decoder.

    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 true, R is false
    D.
    A is false, R is true

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