Explore topic-wise MCQs in Digital Circuits.

This section includes 6 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.

The gates required to build a half adder are __________

A. EX-OR gate and NOR gate
B. EX-OR gate and OR gate
C. EX-OR gate and AND gate
D. EX-NOR gate and AND gate
Answer» D. EX-NOR gate and AND gate
Discussion
2.

Which of the following are known as universal gates?

A. NAND & NOR
B. AND & OR
C. XOR & OR
D. EX-NOR & XOR
Answer» B. AND & OR
Discussion
3.

A full adder logic circuit will have __________

A. Two inputs and one output
B. Three inputs and three outputs
C. Two inputs and two outputs
D. Three inputs and two outputs
Answer» E.
Discussion
4.

The NOR gate output will be high if the two inputs are __________

A. 00
B. 01
C. 10
D. 11
Answer» B. 01
Discussion
5.

The following switching functions are to be implemented using a decoder:
f1 = m(1, 2, 4, 8, 10, 14) f2 = m(2, 5, 9, 11) f3 = m(2, 4, 5, 6, 7)

A. n The minimum configuration of decoder will be __________
B. 2 to 4 line
C. 3 to 8 line
D. 4 to 16 line
E. 5 to 32 line
Answer» D. 4 to 16 line
Discussion
6.

The code where all successive numbers differ from their preceding number by single bit is __________

A. Alphanumeric Code
B. BCD
C. Excess 3
D. Gray
Answer» E.
Discussion