Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Multiple Choice Questions
Q11: The Extended ASCII Code (American Standard Code for Information Interchange) is a _____ code
- A: 2-bit
- B: 7-bit
- C: 8-bit
- D: 16-bit
View Answer
C
Q12: The diagram given below represents __________
- A: Demorgans law
- B: Associative law
- C: Product of sum form
- D: Sum of product form
View Answer
B
Q13: GAL can be reprogrammed because instead of fuses _______ logic is used in it
- A: E2 CMOS
- B: TTL
- C: CMOS+
- D: None of the given options
View Answer
A
Q14: If “1110” is applied at the input of BCD-to-Decimal decoder which output pin will be activated:
- A: 2nd
- B: 4th
- C: 14th
- D: No output wire will be activated
View Answer
D
Q15: A particular Full Adder has
- A: 3 inputs and 2 output
- B: 3 inputs and 3 output
- C: 2 inputs and 3 output
- D: 2 inputs and 2 output
View Answer
B
Q16: C B A Sum ⊕ ⊕ = AB B A C CarryOut + ⊕ = ) ( are the Sum and CarryOut expression of
- A: Half Adder
- B: Full Adder
- C: 3-bit parallel adder
- D: MSI adder circuit
View Answer
B
Q17: The output A < B is set to 1 when the input combinations is __________
- A: A=10, B=01
- B: A=11, B=01
- C: A=01, B=01
- D: A=01, B=10
View Answer
A
Q18: The 4-variable Karnaugh Map (K-Map) has _______ cells for min or max terms
- A: 4
- B: 8
- C: 12
- D: 16
View Answer
D
Q19: Generally, the Power dissipation of _______ devices remains constant throughout their operation.
- A: TTL
- B: CMOS 3.5 series
- C: CMOS 5 Series
- D: Power dissipation of all circuits increases with time.
View Answer
C
Q20: The decimal “8” is represented as _________ using Gray-Code.
- A: 11
- B: 1100
- C: 1000
- D: 1010
View Answer
C