Digital Logic and Design MCQs with Answers
Practice important Digital Logic and Design MCQs with answers and explanations.
Multiple Choice Questions
Q201: A frequency counter ______________
- A: Counts pulse width
- B: Counts no. of clock pulses in 1 second
- C: Counts high and low range of given clock pulse
- D: None of given options
View Answer
B
Q202: The storage cell in SRAM is
- A: a flip –flop
- B: a capacitor
- C: a fuse
- D: a magnetic domain
View Answer
B
Q203: What is the difference between a D latch and a D flip-flop?
- A: The D latch has a clock input.
- B: The D flip-flop has an enable input.
- C: The D latch is used for faster operation.
- D: The D flip-flop has a clock input.
View Answer
D
Q204: For a positive edge-triggered J-K flip-flop with both J and K HIGH, the outputs will______ if the clock goes HIGH.
- A: toggle
- B: set
- C: reset
- D: not change
View Answer
A
Q205: The OR gate performs Boolean ___________.
- A: multiplication
- B: subtraction
- C: division
- D: addition
View Answer
D
Q206: Which circuit is used to perform an addition operation in a digital system?
- A: Counter
- B: Comparator
- C: Adder
- D: Decoder
View Answer
C
Q207: The two main types of flip-flops are
- A: D flip-flop and JK flip-flop
- B: SR flip-flop and JK flip-flop
- C: D flip-flop and SR flip-flop
- D: SR flip-flop and T flip-flop
View Answer
B
Q208: Which of the following is NOT a synchronous counter?
- A: Binary counter
- B: Ripple counter
- C: Up/Down counter
- D: Decade counter
View Answer
B
Q209: In a sequential circuit, the next state depends on __________.
- A: Present state only
- B: Present state and input
- C: Input only
- D: Clock pulse only
View Answer
B
Q210: The control word for a data register is used to specify the ___________.
- A: Data to be stored
- B: Address of the data register
- C: Operation to be performed on data
- D: Reset status of the data register
View Answer
C