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 output of a full subtractor is same as ____________

A. Half adder
B. Full adder
C. Half subtractor
D. Decoder
Answer» C. Half subtractor
Discussion
2.

The full subtractor can be implemented using ___________

A. Two XOR and an OR gates
B. Two half subtractors and an OR gate
C. Two multiplexers and an AND gate
D. Two comparators and an AND gate
Answer» C. Two multiplexers and an AND gate
Discussion
3.

Full subtractor is used to perform subtraction of ___________

A. 2 bits
B. 3 bits
C. 4 bits
D. 8 bits
Answer» C. 4 bits
Discussion
4.

Let A and B is the input of a subtractor then the borrow will be ___________

A. A AND B
B. A AND B
C. A OR B
D. A AND B
Answer» C. A OR B
Discussion
5.

Let A and B is the input of a subtractor then the output will be ___________

A. A XOR B
B. A AND B
C. A OR B
D. A EXNOR B
Answer» B. A AND B
Discussion
6.

Half subtractor is used to perform subtraction of ___________

A. 2 bits
B. 3 bits
C. 4 bits
D. 5 bits
Answer» B. 3 bits
Discussion