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 flag bits in an ALU is defined as ____________

A. The total number of registers
B. The status bit conditions
C. The total number of control lines
D. All of the Mentioned
Answer» C. The total number of control lines
Discussion
2.

If the two numbers include a sign bit in the highest order position, the bit conditions of interest are the sign of the result, a zero indication and ___________

A. An underflow condition
B. A neutral condition
C. An overflow condition
D. One indication
Answer» D. One indication
Discussion
3.

If the two numbers are unsigned, the bit conditions of interest are the ______ carry and a possible _____ result.

A. Input, zero
B. Output, one
C. Input, one
D. Output, zero
Answer» E.
Discussion
4.

The design of an ALU is based on ____________

A. Sequential logic
B. Combinational logic
C. Multiplexing
D. De-Multiplexing
Answer» C. Multiplexing
Discussion
5.

All logic operations can be obtained by means of ____________

A. AND and NAND operations
B. OR and NOR operations
C. OR and NOT operations
D. NAND and NOR operations
Answer» E.
Discussion
6.

The basic building blocks of the arithmetic unit in a digital computers are ____________

A. Subtractors
B. Adders
C. Multiplexer
D. Comparator
Answer» C. Multiplexer
Discussion