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Welcome to the Combinational Logics MCQs Page

Dive deep into the fascinating world of Combinational Logics with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Combinational Logics, a crucial aspect of Digital Logic Design. In this section, you will encounter a diverse range of MCQs that cover various aspects of Combinational Logics, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Digital Logic Design.

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Check out the MCQs below to embark on an enriching journey through Combinational Logics. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Digital Logic Design.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Combinational Logics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Combinational Logics MCQs | Page 3 of 5

Explore more Topics under Digital Logic Design

Q21.
In NAND logic analysis procedure application requires repeated application of

a.

truth table

b.

feedback theorem

c.

demorgan's theorem

d.

K-map

Discuss
Answer: (c).demorgan's theorem
Q22.
Circuits whose output depends on directly present input is called

a.

combinational circuit

b.

sequential circuit

c.

combinational sequence

d.

series

Discuss
Answer: (a).combinational circuit
Q23.
Full subtract circuits have

a.

3 inputs and 2 outputs

b.

1 input and 1 output

c.

both a and b

d.

None

Discuss
Answer: (a).3 inputs and 2 outputs
Q24.
In designing a combinational circuits, truth table defines the relationship of

a.

logical circuit

b.

input

c.

output

d.

input and output

Discuss
Answer: (d).input and output
Q25.
The most significant bit of arithmetic addition is called

a.

overflow

b.

carry

c.

output

d.

zero bit

Discuss
Answer: (b).carry
Q26.
Flip flop are constructed using

a.

AND gate

b.

OR gate

c.

NAND gate

d.

NOR gate

Discuss
Answer: (c).NAND gate
Q27.
Two bit addition is done by

a.

ripple carry adder

b.

carry sum adder

c.

full adder

d.

half adder

Discuss
Answer: (d).half adder
Q28.
AND gates are converted to NAND gates using

a.

invert OR

b.

AND invert

c.

NAND invert

d.

both a and b

Discuss
Answer: (b).AND invert
Q29.
In don't cares map input are marked by

a.

0

b.

1

c.

star

d.

X

Discuss
Answer: (d).X
Q30.
OR operation is achieved through a NAND gate with Additional

a.

AND gates

b.

OR gates

c.

XOR gates

d.

Inverters

Discuss
Answer: (c).XOR gates
Page 3 of 5

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