Free Printable 1.4 Logic Gate

1.

What is the output of an OR gate if the inputs are 1 and 0?

a)

0

b)

1

c)

OFF

d)

2

2.

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

3.

A logic state can only be….

a)

On or 1

b)

Off or 1

c)

1 or 0

d)

In and Out

4.

What logic gate is this?

a)

AND

b)

OR

c)

NOT

d)

TO

5.

What gate is this table for?

a)

AND

b)

OR

c)

NOT

d)

NOR

6.

A truth table lists every possible combination of input and the resulting output

a)

True

b)

False

7.

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

a)

0

b)

1

8.

Logic statement for $Y_1$

a)

$A\cdot B$

b)

$A+B$

c)

$A\cdot B\cdot C\cdot D$

d)

$C\cdot D$

e)

$A+B+C+D$

9.

Logic statement for $Y_2$

a)

$B+C$

b)

$C+D$

c)

$A\cdot B\cdot C\cdot D$

d)

$C\cdot D$

e)

$A+B+C+D$

10.

Logic statement for $Y_{ }$

a)

$B+C$

b)

$C+D$

c)

$A\cdot B\cdot C\cdot D$

d)

$C\cdot D$

e)

$A+B+C+D$

11.

Derive T from the logic circuit given

a)

$A\cdot B+B\cdot C\cdot\left(B+C\right)$

b)

$A\cdot B+B\cdot C\cdot B+C$

c)

$A+B\cdot B+C+\left(B\cdot C\right)$

d)

$A+B\cdot B+C+B\cdot C$

12.

Derive expression for Y

a)

$\overline{\left(A\cdot B\right)+\overline{C}}$

b)

$\overline{\left(A\cdot B\right)}+\overline{C}$

c)

$\overline{\left(A\cdot B\right)}+\overline{\overline{C}}$

d)

$A\cdot\overline{B+\overline{C}}$

13.

What is the value of E if both input is TRUE

a)

TRUE

b)

FALSE

14.

Which logic gate is represented by this truth table?

a)

b)

c)

d)

15.

A GATE THAT RETURN THE INVERSE VALUE OF THE INPUT.

a)

XOR

b)

XNOR

c)

NOT

d)

XNOT

16.

The logic in used in computer systems is called Boolean logic because there are only 3 possible values.

a)

False

b)

True

17.

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

a)

0

b)

1

18.

"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

19.

What kind of gate does this Truth Table represent?

a)

NAND

b)

AND

c)

XAND

d)

OR

20.

What is the final value of the logic circuit given if A=1, B=0, C=1

a)

TRUE

b)

FALSE

1.4 Logic Gate

Total questions: 20

Worksheet time: 40mins

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