Digital Circuit and Microprocessor MCQs

Question 1

The digital equivalent of an electric series circuit is the gate.

Accepted Answer

AND

Answer

NOR

Answer

NAND

Answer

OR

Question 2

Which of the following represents analog data?

Accepted Answer

Answer

ON and OFF states (b)0 and 1

Answer

(c) OV and 5V

Answer

(d)1.5,3.2,4and5V

Question 3

The logic gate which produces a 0 or low-level output when one or both of the inputs are 1 is called gate.

Accepted Answer

NOR

Answer

AND

Answer

OR

Answer

NAND

Question 4

The output X of the gated network shown in Fig. 7.4 is

Accepted Answer

AB + CD + EF

Answer

AB . CD . EF

Answer

(A + B)(C + D) (E + F)

Question 5

Boolean algebra is essential based on

Accepted Answer

symbols

Answer

logic

Answer

truth

Answer

numbers

Question 6

The first person who used Boolean algebra for the design of relay switching circuits was

Accepted Answer

Shannon

Answer

Aristotle

Answer

Boole

Answer

Ramanujam

Question 7

Different variables used in Boolean algebra can have values of

Accepted Answer

0 or 1

Answer

low or high

Answer

true or false

Answer

On or OFF

Question 8

According to the algebra of logic, (A+ -A- ) equals

Accepted Answer

I

Answer

A

Answer

0

Answer

AA

Question 9

According to the absorptive Laws of Boolean algebra, expression in (A + AB) equals

Accepted Answer

A

Answer

B

Answer

AB