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

Which of the following set of numbers uses digital circuit? (NECO 2018)

A. 0,0
B. 0,1
C. 1,1
D. 10,11

Figure 1 represents ______ (WASSCE 2018)

A. a NOT gate.
B. a NAND gate.
C. a NOR gate.
D. an OR gate.

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 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.