Explore topic-wise MCQs in Digital Circuits.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Circuits knowledge and support exam preparation. Choose a topic below to get started.

1.

TTL 74LS85 is a _____________

A. 1-bit digital comparator
B. 4-bit magnitude comparator
C. 8-bit magnitude comparator
D. 8-bit word comparator
Answer» C. 8-bit magnitude comparator
2.

The purpose of a Digital Comparator is ____________

A. To convert analog input into digital
B. To create different outputs
C. To add a set of different numbers
D. To compare a set of variables or unknown numbers
Answer» E.
3.

A magnitude comparator is defined as a digital comparator which has ____________

A. Only one output terminal
B. Two output terminals
C. Three output terminals
D. No output terminal
Answer» D. No output terminal
4.

An identify comparator is defined as a digital comparator which has ____________

A. Only one output terminal
B. Two output terminals
C. Three output terminals
D. No output terminal
Answer» B. Two output terminals
5.

A procedure that specifies finite set of steps is called ____________

A. Algorithm
B. Flow chart
C. Chart
D. Venn diagram
Answer» B. Flow chart
6.

A circuit that compares two numbers and determines their magnitude is called ____________

A. Height comparator
B. Size comparator
C. Comparator
D. Magnitude comparator
Answer» E.
7.

Comparators are used in ____________

A. Memory
B. CPU
C. Motherboard
D. Hard drive
Answer» C. Motherboard
8.

In a comparator, if we get input as A>B then the output will be ____________

A. 1
B. 0
C. A
D. B
Answer» B. 0
9.

If two numbers are not equal then binary variable will be ____________

A. 0
B. 1
C. A
D. B
Answer» B. 1
10.

One that is not the outcome of magnitude comparator is ____________

A. a > b
B. a b
C. a < b
D. a = b
Answer» C. a < b
11.

All the comparisons made by comparator is done using ____________

A. 1 circuit
B. 2 circuits
C. 3 circuits
D. 4 circuits
Answer» B. 2 circuits