Digital Electronics MCQs Set-4

1. Which of the following code is also known as reflected code?
  • Excess-3 codes
  • Gray code
  • Straight binary code
  • Error code
2. EXOR is the __________ of the binary number.
  • MSB to the next bit
  • LSB to the next bit
  • MSB of the previous bit
  • LSB of the previous bit
3. ASCII code is required for representing more than ________ characters
  • 16
  •  8
  •  64
  • 32
4. Why the 8-bit (MSB) is added in EBCDIC?
  • For carriage return
  • For making the total number of 1’s odd
  • For line feed
  • For parity
5. What is the 8-bit EBCDIC representation of alphabet M?
  •  1100100
  •  11001001
  •  11010100
  •  010001
6. What will be the result in BCD form if two binary numbers 599 and 984 are added?
  •  1583
  •  8513
  •  8421
  •  None of the above
7. Which of the following is not correct regarding EBCDIC?
  •  It is used to represent more than 64 characters.
  •  It is a 7-bit code.
  •  A maximum of 128 different characters can be represented by this code.
  •  None of the above
8. The MSB of _____________ is same as the MSB of the corresponding Gray code.
  •  Alphanumeric code
  •  Excess-3 code
  • Binary code
  •  Gray code
9. How can you represent (08)10 in BCD?
  •  0000 1000
  •  0010 0011
  •  1001 0010 0001
  •  1001 0010
10. In N-bits, you can represent the signed integers ranging from ___________.
  • 2^(N-1) to 2^(N+1)
  •  -2^(N-1) to 2^(N-1) -1
  •  2^(N+1) to 2^(N-1) +1
  • 2^(N) to 2^(N+1)