MCQOPTIONS

Explore topic-wise MCQs in Digital Circuits.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Circuits knowledge and support exam preparation. Choose a topic below to get started.

1.	The characteristic equation of D-flip-flop implies that ___________
A.	The next state is dependent on previous state
B.	The next state is dependent on present state
C.	The next state is independent of previous state
D.	The next state is independent of present state
Answer» E.

2.	Why do the D flip-flops receive its designation or nomenclature as Data Flip-flops ?
A.	Due to its capability to receive data from flip-flop
B.	Due to its capability to store data in flip-flop
C.	Due to its capability to transfer the data into flip-flop
D.	Due to erasing the data from the flip-flop
Answer» D. Due to erasing the data from the flip-flop

3.	With regard to a D latch ________
A.	The Q output follows the D input when EN is LOW
B.	The Q output is opposite the D input when EN is LOW
C.	The Q output follows the D input when EN is HIGH
D.	The Q output is HIGH regardless of EN s input state
Answer» D. The Q output is HIGH regardless of EN s input state

4.	Which statement describes the BEST operation of a negative-edge-triggered D flip-flop?
A.	The logic level at the D input is transferred to Q on NGT of CLK
B.	The Q output is ALWAYS identical to the CLK input if the D input is HIGH
C.	The Q output is ALWAYS identical to the D input when CLK = PGT
D.	The Q output is ALWAYS identical to the D input
Answer» B. The Q output is ALWAYS identical to the CLK input if the D input is HIGH

5.	In D flip-flop, if clock input is HIGH & D=1, then output is ___________
A.	0
B.	1
C.	Forbidden
D.	Toggle
Answer» B. 1

6.	In D flip-flop, if clock input is LOW, the D input ___________
A.	Has no effect
B.	Goes high
C.	Goes low
D.	Has effect
Answer» B. Goes high

7.	In D flip-flop, D stands for _____________
A.	Distant
B.	Data
C.	Desired
D.	Delay
Answer» C. Desired