# Logic Gates

14 Questions | Total Attempts: 134

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• 1.
What are logic gates?
• A.

Pieces of hardware that perform operations on bits

• B.

Software that allow editing of information

• C.

Pieces of hardware that provide storage space

• 2.
Why logic gates are used within the computer system?
• A.

To store data permanently

• B.

To carry out the instructions

• C.

To provide arithmetic and logical operations

• D.

All of the above

• 3.
In logic, bits are represented as:
• A.

1: False 1: False 0: True

• B.

0: False 1: True

• C.

0: True 1: True

• 4.
Types of logic gates:
• A.

NOT, AND, OR

• B.

NOT, AND

• C.

NOT, OR

• D.

NOT, OR, NAND

• 5.
Each logic gate function is described by:
• A.

Its symbol

• B.

Possible inputs

• C.

A truth table

• D.

All the above

• 6.
This table lists every possible combination of input and equivalent output:
• A.

Binary Table

• B.

Truth Table

• C.

Logic Table

• D.

False Table

• 7.
Not gate is also known as:
• A.

Simple NOT

• B.

Inclusive NOT

• C.

An inverter

• D.

Non of the above

• 8.
What is the function of a NOT gate?
• A.

The output is always 0 (false)

• B.

The output is always 1 (True)

• C.

The output is the inverse of its input

• D.

None of the above

• 9.
The Boolean expression of NOT gate is X = NOT A
• A.

True

• B.

False

• 10.
The Boolean expression of OR gate is
• A.

X = A.B

• B.

X = A OR B

• C.

OR = A + B

• 11.
The Boolean expression of AND gate is
• A.

X = A.B

• B.

X=A+B

• C.

X = A – B

• 12.
Which logic gate produces an output that is the inverse of the input
• A.

AND

• B.

OR

• C.

NOT

• 13.
Which logic gate produces an output 1 when both inputs are 1?
• A.

AND

• B.

OR

• C.

NOT

• 14.
Which logic gate produces an output 1 when any inputs are 1?
• A.

AND

• B.

OR

• C.

NOT