Combinational Logic Circuits MCQ Quiz Questions and Answers Pdf - 2

Question: 6

Which of the following devices selects one of several inputs and transmits it to a single output?

(A) Counter

(B) Decoder

(C) Multiplexer

(D) Demultiplexer

Ans: C

Multiplexer

Question: 7

The advantage of serial transfer compared with parallel transfer for data transmission is that

(A) BCD is compatible

(B) It is faster

(C) It needs only one wire

(D) All of these

Ans: C

It needs only one wire

Question: 8

A basic instruction that can be interpreted by a computer generally has

(A) An address and decoder

(B) Sequence register and decoder

(C) A decoder and an accumulator

(D) An operand and an address

Ans: D

An operand and an address

Question: 9

In a digital counter circuit, feedback loop is introduced to

(A) Reduce number of input pulses to reset the counter

(B) Synchronous input and output pulses

(C) Improve stability

(D) Improve distortion

Ans: A

Reduce number of input pulses to reset the counter

Question: 10

Flip flop outputs are always

(A) Same as inputs

(B) Independent of each other

(C) The same

(D) Complimentary

Ans: D

Complimentary

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