Combinational Logic Circuits MCQ Quiz Questions and Answers Pdf - 1
Question: 1
A multiplexer with a 4 bit data select input is a
(A) 2 : 1 multiplexer
(B) 4 : 1 multiplexer
(C) 8 : 1 multiplexer
(D) 16 : 1 multiplexer
Ans: D
16 : 1 multiplexer
Question: 2
In which of the following adder circuits, the carry look ripples delay is eliminated?
(A) Carry look ahead adder
(B) Half adder
(C) Full adder
(D) Parallel adder
Ans: A
Carry look ahead adder
Question: 3
How many truth tables can be made from one function table?
(A) One
(B) Two
(C) Three
(D) Four
Ans: B
Two
Question: 4
Which of the following unit will choose the transform decimal number to binary code?
(A) Demultiplexer
(B) Multiplexer
(C) Encoder
(D) Decoder
Ans: C
Encoder
Question: 5
Astable multivibrator are used as
(A) Voltage to frequency converter
(B) Frequency to voltage converter
(C) Squaring circuit
(D) Comparator circuit
Ans: A
Voltage to frequency converter
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