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Logic Gates

Total questions: 50

Worksheet time: 26mins

Name
Class
Date
1.

For AND, when is it TRUE?

a)

false AND false

b)

true AND false

c)

false AND true

d)

true AND true

2.

For AND, when is it FALSE?

a)

false AND false

b)

true AND false

c)

false AND true

d)

true AND true

3.

What is the output?

a)

True

b)

False

4.

For OR, when is it TRUE?

a)

false AND false

b)

true AND false

c)

false AND true

d)

true AND true

5.

For OR, when is it FALSE?

a)

false AND false

b)

true AND false

c)

false AND true

d)

true AND true

6.

What is the output?

a)

True

b)

False

7.

What is the output?

a)

True

b)

False

8.

What is the output?

a)

True

b)

False

9.

What is the output?

a)

True

b)

False

10.
What is the output of an OR gate if the inputs are 1 and 0?
a)
0
b)
1
c)
OFF
d)
2
11.
What is the output of an AND gate if the inputs are 1 and 0?
a)
ON
b)
2
c)
1
d)
0
12.
A NOT gate has…
a)
Two inputs and one output
b)
One input and one output
c)
One input and two outputs
d)
Two inputs and two outputs
13.
What is the output of a NOT gate if the inputs is 0?
a)
1
b)
0
c)
OFF
d)
2
14.
A logic state can only be….
a)
On or 1
b)
Off or 1
c)
1 or 0
d)
In and Out
15.
The output of a ________ gate is only 1 when both inputs are 1.
a)
OR
b)
NOT
c)
NAND
d)
AND
16.
What logic gate is this?
a)
AND
b)
OR 
c)
NOT
d)
TO
17.
What gate is this table for?
a)
AND
b)
OR
c)
NOT
d)
NOR
18.
What gate is this truth table for?
a)
AND
b)
OR
c)
NOT
d)
THE 
19.
What gate is this table for?
a)
AND
b)
XOR
c)
OR 
d)
NOT
20.

Which logic gate is this?

a)

AND

b)

OR

c)

XOR

d)

NOT

21.
What logic gate is this?
a)
AND 
b)
OR 
c)
NOT 
d)
THE
22.
A truth table lists every possible combination of input and the resulting output
a)
True
b)
False
23.

What will the circuit's output be?

a)

1

b)

0

24.

What type of logic gate is this table showing?

a)

AND

b)

OR

c)

NOT

25.

Which logic gate is this?

a)

AND

b)

NOT

c)

OR

26.

What will this gate's output be?

a)

0

b)

1

27.

What will this gate's output be?

a)

0

b)

1

28.

What will this gate's output be?

a)

0

b)

1

29.

What will this gate's output be?

a)

0

b)

1

30.

What is the Logic Expression for this circuit?

a)

Z = NOT (A AND B)

b)

Z = NOT (A OR B)

c)

Z = (NOT A) AND B

d)

Z = (NOT A) OR B

31.

True or False:

Both inputs need to be 1 for an OR gate to output a 1

a)

True

b)

False

32.

True or False:

NOT gates output the opposite of the input

a)

True

b)

False

33.
What kind of gate is this?
a)
NOR
b)
NAND
c)
OR
d)
XOR
34.
What kind of gate is this?
a)
NAND
b)
AND
c)
NOR
d)
XAND
35.
What kind of gate is this?
a)
OR
b)
XOR
c)
NOR
d)
AND
36.
What kind of gate does this Truth Table represent?
a)
AND
b)
OR
c)
NOT
d)
NOR
37.
What kind of gate does this Truth Table represent?
a)
NOR
b)
NOT
c)
OR
d)
XOR
38.
What kind of gate does this Truth Table represent?
a)
XOR
b)
OR
c)
NOT
d)
AND
39.
What kind of gate does this Truth Table represent?
a)
NAND
b)
AND
c)
XAND
d)
OR
40.

Which truth table is correct for this logic gate?

a)
b)
c)
d)
e)
41.

"The burglar alarm will go off if either the door or the window or both are opened". This is an example of which type of Logic?

a)

AND

b)

OR

c)

NOT

d)

NOR

42.

What will the circuit's output be?

a)

1

b)

0

43.

What is the output Y of this logic cricuit if A = 1, B = 1, and C = 1

a)

0

b)

1

44.

What is the output Z of this logic cricuit if A = 1 and B = 1

a)

0

b)

1

45.
There are three fundamental operations in Boolean Algebra: ___
a)
Addition, Subtraction and Multiplication
b)
NOT, AND, and OR
c)
IF, AND, and BUT
d)
IF, ELSE and ELSE IF
46.

The output of an AND gate will be 1 if

a)

At least one of the inputs is at 1.

b)

At most one of the inputs is at 0.

c)

An even number of inputs must be at 1.

d)

None of these.

47.
What kind of gate does this Truth Table represent?
a)
XOR
b)
OR
c)
NOT
d)
AND
48.

Which one of the following gates is not a basic gate______

a)

AND

b)

OR

c)

NOR

d)

NOTNOT

49.

The inverter is__________

a)

an NOR gate

b)

A NOT gate

c)

an AND gate

d)

combination of OR and AND gate

50.

A NOR gate gives ___________

a)

high output when both inputs are high

b)

high output when both inputs are low

c)

low output when both inputs are low

d)

high output when one input is low and the other input is high

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