Digital Electronics MCQs Set-2

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  1. 1. In direct conversion from binary to hexadecimal, if the last group does not have 4- bits, then it is padded with ______________ to make it four bits.
    • Zeros
    • Ones
    • Two zeros and two ones
    • One zero and three ones
  2. 2. What is the hex equivalent of 916, a 4-bit binary number?
    •  11112
    •  10012
    •  01102
    •  11002
  3. 3. The sign information has to be encoded along with the ___________ to represent the integers completely.
    • No. of bits
    • Position
    • Magnitude
    • Weight
  4. 4. Which one is the possible technique for representing signed integers?
    • Signed Magnitude Representation
    • Diminished Radix-Complement Representation
    • Radix-Complement Representation
    • All of the above
  5. 5. What is used to represent the signed magnitude?
    • MSB
    • LSB
    • Both
    • None of the above
  6. 6. What is the corresponding hex number of the signed magnitude -127?
    •  (7F)16
    •  (FF)16
    •  (00)16
    •  (80)16
  7. 7. What are the two ways of representing the 0 with signed magnitude representation?
    • -0 and -0
    •  +0 and +0
    •  -0 and +0
    • None of the above
  8. 8. (FA)16 is the ________ one’s complement representation of -5.
    •  4-bit
    •  8-bit
    •  16-bit
    • 2-bit
  9. 9. 2’s complement is used to represent signed integers, especially __________ integers.
    • Negative
    • Positive
    • Both A and B
    • None of the above
  10. 10. In ___________________, to encode a negative number, first the binary representation of its magnitude is taken, complement each bit and then add 1.
    •  Signed integer representation
    • 1’s complement representation
    • 2’s complement representation
    • Radix complement representation