Digital Electronics MCQ with Answers PDF - 1

Question: 1

Which of the following is not an analog device?

(A) Audio microphone

(B) Light switch

(C) Current flow in a circuit

(D) Thermocouple

Ans: B

Light switch

Question: 2

Which of the following gates has the exact inverse output of the OR gate for all possible input combinations?

(A) AND

(B) NOT

(C) NOR

(D) NAND

Ans: C

NOR

Question: 3

Full adder is used to

(A) 2 bit addition

(B) 3 bit addition

(C) 4 bit addition

(D) 6 bit addition

Ans: B

3 bit addition

Question: 4

Which format requires fewer conductors?

(A) Perpendicular

(B) Parallel

(C) Serial

(D) Both are the same

Ans: C

Serial

Question: 5

The systematic reduction of logic circuits is accomplished by

(A) Using a truth table

(B) TTL logic

(C) Symbolic reduction

(D) Using Boolean algebra

Ans: D

Using Boolean algebra

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