Computer Studies Practice Test – Logic Circuits (Questions with Answers and Explanations)

The function of a “NOT gate” is to ________ (NECO 2018)

A. act as a universal signal.
B. implement logic addition.
C. invert an input or output signal.
D. stop a signal.

The above Figure represents ______ (WASSCE 2015)

A. a NOT gate.
B. a NAND gate.
C. an AND gate.
D. an OR gate.

A Logic gate is an electronic circuit which _________ (NECO 2016) 

A. allows electron flow in one direction.
B. alternates between 0 and 1 value
C. makes logical decisions.
D. simplifies the design of logic circuit.

When signals X = 0 and Y = 1, signal Z is ______ (WASSCE 2015)

A. 0.1
B. 0
C. 1
D. 0 + 1

Given that X and Y are input variables while Z is the output. The truth table represents ______ (WASSCE 2018)