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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. The initial state of MOD-16 down counter is 0110. What state will it be after 37 clock pulses?

    2. A.
    Indeterminate
    B.
    0110
    C.
    0101
    D.
    0001

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  2. The number of address lines in EPROM 4096 x 8 is

    3. A.
    2
    B.
    4
    C.
    8
    D.
    12

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  3. If the inputs to a 3 bit binary adder are 1112 and 1112, the output will be 1102

    4. A.
    True
    B.
    False

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  4. Which display device resembles vacuum tube?

    5. A.
    LED
    B.
    LCD
    C.
    VF
    D.
    None of these

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  5. The number of inputs and outputs of a full adder are

    6. A.
    3 and 2 respectively
    B.
    2 and 3 respectively
    C.
    4 and 2 respectively
    D.
    2 and 4 respectively

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  6. A VF display operates on the principle of a vacuum diode.

    7. A.
    True
    B.
    False

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  7. In a 3 input NAND gate, the number of states in which output is 0 equals

    8. A.
    8
    B.
    1
    C.
    6
    D.
    5

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  8. In a mod-12 counter the input clock frequency is 10 kHz. The output frequency is

    9. A.
    0.833 kHz
    B.
    1.0 kHz
    C.
    0.91 kHz
    D.
    0.77 kHz

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  9. The total number of input words for 4 input OR gate is

    10. A.
    20
    B.
    16
    C.
    12
    D.
    8

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  10. In digital circuits Schottky transistors are preferred over normal transistors because of their

    11. A.
    lower propagation delay
    B.
    lower power dissipation
    C.
    higher propagation delay
    D.
    higher power dissipation

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