Logic Gates MCQs

Question 1

The output will be a LOW for any case when one or more inputs are zero in a(n):

Accepted Answer

AND gate

Answer

OR gate

Answer

NOT gate

Answer

NAND gate

Question 2

If a signal passing through a gate is inhibited by sending a low into one of the inputs, and the output is HIGH, the gate is a(n):

Accepted Answer

NAND

Answer

AND

Answer

NOR

Answer

OR

Question 3

A single transistor can be used to build which of the following digital logic gates?

Accepted Answer

NOT gates

Answer

AND gates

Answer

OR gates

Answer

NAND gates

Question 4

The logic gate that will have HIGH or "1" at its output when any one of its inputs is HIGH is a(n):

Accepted Answer

OR gate

Answer

AND gate

Answer

NOR gate

Answer

NOT gate

Question 5

How many NAND circuits are contained in a 7400 NAND IC?

Accepted Answer

4

Answer

1

Answer

2

Answer

8

Question 6

Exclusive-OR (XOR) logic gates can be constructed from what other logic gates?

Accepted Answer

AND gates, OR gates, and NOT gates

Answer

OR gates only

Answer

AND gates and NOT gates

Answer

OR gates and NOT gates

Question 7

How many truth table entries are necessary for a four-input circuit?

Accepted Answer

16

Answer

4

Answer

8

Answer

12

Question 8

A NAND gate has:

Accepted Answer

LOW inputs and a HIGH output

Answer

LOW inputs and a LOW output

Answer

HIGH inputs and a HIGH output

Answer

None of the these

Question 9

The basic logic gate whose output is the complement of the input is the:

Accepted Answer

INVERTER gate

Answer

OR gate

Answer

AND gate

Answer

comparator