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

Identify the logic gate in figure 2. (WASSCE 2018)

A. an AND gate.
B. a NAND gate.
C. a NOR gate.
D. an OR gate

The logic expression for a NOR gate is ______ (NECO 2018) 

A. X = A + B.
B. X = .
C. X =  + B.
D. X =   .

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 table above represents the Truth Table for _______

The logic gate that will have “on” or “1” as its output when one of its input is “on” is a/an _____ gate. (NECO 2016)

A. AND
B. OR
C. NOR
D. NOT