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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. If output of a logic gate is 1 when all its inputs are at logic 0. Then the gate is either
    2. A.
    a NAND or an EX-OR
    B.
    an OR or an EX-NOR
    C.
    an AND or an EX-OR
    D.
    a NOR or an EX-NOR

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  2. Which of the following digital logic family has minimum power dissipation?
    3. A.
    TTL
    B.
    RTL
    C.
    DTL
    D.
    CMOS

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  3. The Gray code for decimal number 6 is equivalent to
    4. A.
    1100
    B.
    1001
    C.
    0101
    D.
    0110

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  4. The hexadecimal number 'A0' has the decimal value equivalent to
    5. A.
    80
    B.
    256
    C.
    100
    D.
    160

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  5. EPROM contents can be erased by exposing it to
    6. A.
    Ultraviolet rays
    B.
    Infrared rays
    C.
    Burst of microwaves
    D.
    Intense heat radiations

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  6. (734)8 = ( )16
    7. A.

    C 1 D
    B.

    D C 1
    C.

    1 C D
    D.

    1 D C

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  7. The decimal equivalent of hex number 1A53 is
    8. A.
    6793
    B.
    6739
    C.
    6973
    D.
    6379

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  8. What of the following is the binary equivalent of the decimal number 368
    9. A.
    101110000
    B.
    110110000
    C.
    111010000
    D.
    111100000

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  9. The NAND gate output will be low if the two inputs are
    10. A.
    00
    B.
    01
    C.
    10
    D.
    11

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  10. Any negative number is recognized by its
    11. A.
    MSB
    B.
    LSB
    C.
    Bits
    D.
    Nibble

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