Digital Electronics MCQs Set-2

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. What is the hex equivalent of 916, a 4-bit binary number?
  •  11112
  •  10012
  •  01102
  •  11002
3. The sign information has to be encoded along with the ___________ to represent the integers completely.
  • No. of bits
  • Position
  • Magnitude
  • Weight
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. What is used to represent the signed magnitude?
  • MSB
  • LSB
  • Both
  • None of the above
6. What is the corresponding hex number of the signed magnitude -127?
  •  (7F)16
  •  (FF)16
  •  (00)16
  •  (80)16
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. (FA)16 is the ________ one’s complement representation of -5.
  •  4-bit
  •  8-bit
  •  16-bit
  • 2-bit
9. 2’s complement is used to represent signed integers, especially __________ integers.
  • Negative
  • Positive
  • Both A and B
  • None of the above
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