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Quiz 2 Digital Electronic

Total questions: 20

Worksheet time: 1hrs 25mins

Name
Class
Date
1.

What is the base of hexadecimal number?

a)

8

b)

10

c)

2

d)

16

2.

The range of octal number is from

a)

0 to 7

b)

0 to 8

c)

1 to 7

d)

1 to 8

3.

Convert the binary number 01011 into decimal

a)

10

b)

11

c)

12

d)

13

4.

The decimal equivalent of binary 101010 is

a)

40

b)

42

c)

30

d)

48

5.

Which are the UNIVERSAL GATES?

a)

XOR Gate & NOT Gate

b)

AND Gate & OR Gate

c)

NAND Gate & NOR Gate

d)

All of the above

6.

Based on the picture, what is the logic gate represents the picture?

a)

AND

b)

NOT

c)

DAN

d)

NOR

7.

State the logic type

a)

NOT GATE

b)

NAND GATE

c)

AND GATE

d)

NOR GATE

8.

WHAT IS THE OUTPUT, X FOR THE LOGIC CIRCUIT GIVEN

a)
b)
c)
d)
9.

DERIVE THE EXPRESSION, Y FROM THE K-MAP GIVEN

a)

Y = AB

b)

Y=CD'+C'D'

c)

Y=D'

d)

Y=CD'

10.

symbol for a NOT gate?

a)
b)
c)
d)
11.

State the name of this logic gate....

a)

AND

b)

NOT

c)

NOR

d)

OR

12.

symbol for a NAND gate is....

a)
b)
c)
d)
13.

An OR gate has...

a)

Two inputs and one output

b)

One input and two outputs

c)

One input and one output

d)

Two inputs and two outputs

14.

Which truth table is this?

a)

XOR

b)

NOR

c)

NAND

d)

NOT

15.

a logic circuit whose output is 1 when all inputs are 1

a)

NOR gate

b)

AND gate

c)

NAND gate

d)

XOR gate

16.

Which of the following logic expressions represents the logic diagram shown?

a)

X=AB’+A’B

b)

X=(AB)’+AB

c)

X=(AB)’+A’B’

d)

X=A’B’+AB

17.

The decimal equivalent of the octal number 523 is

a)

335

b)

533

c)

339

d)

393

18.
The output of an AND gate is LOW ________.
a)
all the time
b)
when any input is HIGH
c)
when all inputs are HIGH
d)
when any input is LOW
19.
What is the hexadecimal equivalent to the decimal
number 2610?

a.  8H
b.  1AH
c.  A1H
d.  20H
a)
A.
b)
B.
c)
C.
d)
D.
20.

Convert 110101111 to an octal number

a)

6578

b)

6678

c)

3678

d)

6448