# 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)