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

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

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

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

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

The figure above represents ________ (WASSCE 2014) 

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

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

If A = 0, and B = 1 are inputs for a NOR gate operation, the logical output for  is ______ (NECO 2015)

A. 0   
B. 1
C. -1
D. 0,1.