Digital Electronics and Logic Design MCQs | Page - 117

Dear candidates you will find MCQ questions of Digital Electronics and Logic Design here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

K

Kiran Rapria • 4.26K Points
Extraordinary

Q. In the toggle mode, a JK flip-flop has ?

(A) J= 0, K= 0
(B) J=0, K=1
(C) J=1, K= 0
(D) J=1, K=1
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R

Ritu Singhal • 4.36K Points
Extraordinary

Q. In a JK flip-flop, J is connected to Q’ and K is connected to Q outputs. The JK flip-flop converts into a ?

(A) R-S flip-flop
(B) D flip-flop
(C) T flip-flop
(D) Clocked R-S flip flop
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K

Kiran Rapria • 4.26K Points
Extraordinary

Q. The 'race-around' condition occurs when ?

(A) J = 0, K = 0
(B) J = 0, K = 1
(C) J = 1, K = 0
(D) J = 1, K = 1
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N

Neelam Mittal • 4.57K Points
Extraordinary

Q. The functional difference between SR and JK flip-flops is that ?

(A) JK flip-flop has a feedback path
(B) JK flip-flop does not require any external clock
(C) JK flip-flop is faster than SR flip-flop
(D) JK flip-flop can accept both inputs
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R

Ritu Nagar • 4.39K Points
Extraordinary

Q. When a flip-flop is reset, its output will be: ?

(A) Q=Q; Q’=1
(B) Q=1;Q’=0
(C) Q = 0;Q’=0
(D) Q=1;Q’=1
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B

Bhagwan Das • 4.44K Points
Extraordinary

Q. The basic R-S flip-flop is ?

(A) a monostable multivibrator
(B) a bistable multivibrator
(C) an astable multivibrator
(D) a Schmitt trigger
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P

Priyanka Tomar • 35.28K Points
Coach

Q. What is the number of selector lines required in a single input n-output demultiplexer ?

(A) 2
(B) n
(C) 2^n
(D) log? n
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V

Vijay Sangwan • 28.62K Points
Instructor II

Q. If S=0, R = 1 is a SR flip-flop, ?

(A) Qn+1=Q’n
(B) Qn+1 = Qn
(C) Qn+1 = 0
(D) Qn+1 = 1
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