Explore topic-wise MCQs in Boolean Algebra and Logic Simplification .

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Boolean Algebra and Logic Simplification knowledge and support exam preparation. Choose a topic below to get started.

1.

A logic circuit with an output consists of ________.

A. two AND gates, two OR gates, two inverters
B. three AND gates, two OR gates, one inverter
C. two AND gates, one OR gate, two inverters
D. two AND gates, one OR gate
Answer» D. two AND gates, one OR gate
Discussion
2.

Implementation of the Boolean expression results in ________.

A. three AND gates, one OR gate
B. three AND gates, one NOT gate, one OR gate
C. three AND gates, one NOT gate, three OR gates
D. three AND gates, three OR gates
Answer» C. three AND gates, one NOT gate, three OR gates
Discussion
3.

One positive pulse with t w = 75 µs is applied to one of the inputs of an exclusive-OR circuit. A second positive pulse with t w = 15 µs is applied to the other input beginning 20 µs after the leading edge of the first pulse. Which statement describes the output in relation to the inputs?

A. The exclusive-OR output is a 20 s pulse followed by a 40 s pulse, with a separation of 15 s between the pulses.
B. The exclusive-OR output is a 20 s pulse followed by a 15 s pulse, with a separation of 40 s between the pulses.
C. The exclusive-OR output is a 15 s pulse followed by a 40 s pulse.
D. *The exclusive-OR output is a 20 s pulse followed by a 15 s pulse, followed by a 40 s pulse.
Answer» E.
Discussion
4.

Before an SOP implementation, the expression would require a total of how many gates?

A. 1
B. 2
C. 4
D. 5
Answer» E.
Discussion
5.

The 8-input XOR circuit shown has an output of Y = 1. Which input combination below (ordered A – H) is correct?

A. 10111100
B. 10111000
C. 11100111
D. 00011101
Answer» B. 10111000
Discussion