Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Multiple Choice Questions
Q101: In signed binary numbers, what does the MSB (Most Significant Bit) represent?
- A: Magnitude
- B: Sign
- C: Base
- D: Exponent
View Answer
B
Q102: How is the binary number 11101 interpreted in a signed binary system?
- A: 29
- B: -29
- C: -13
- D: 13
View Answer
C
Q103: What is the 2's complement of the binary number 01101?
- A: 10010
- B: 10011
- C: 11001
- D: 1111
View Answer
B
Q104: What does the 2's complement form allow in binary arithmetic?
- A: Complex calculations
- B: Direct subtraction
- C: Direct addition and subtraction
- D: Direct multiplication and division
View Answer
C
Q105: In binary arithmetic using 2's complement, what happens when you add +7 and -13?
- A: Result is positive
- B: Result is zero
- C: Result is negative
- D: Result is undefined
View Answer
C
Q106: How is binary division performed in digital systems?
- A: Left shift
- B: Right shift
- C: Repeated subtraction
- D: Repeated division by 2
View Answer
D
Q107: What is the binary equivalent of the decimal number 392 using repeated division by 2?
- A: 110010000
- B: 101010101
- C: 110001000
- D: 101000100
View Answer
C
Q108: How can a negative number be quickly identified in 2’s complement?
- A: Checking the LSB
- B: Checking the middle bit
- C: Checking the MSB
- D: Checking the sum of bits
View Answer
C
Q109: What is the binary equivalent of the decimal fraction 0.625 using repeated multiplication by 2?
- A: 0.101
- B: 0.11
- C: 0.011
- D: 0.111
View Answer
A
Q110: What is a left shift by 3 bits equivalent to in binary multiplication?
- A: Multiplication by 4
- B: Multiplication by 8
- C: Multiplication by 16
- D: Multiplication by 2
View Answer
C