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NUMBER SYSTEM CONVERSIONS

Total questions: 20

Worksheet time: 9mins

Name
Class
Date
1.

The most commonly used numbering system in real life is ___ number system.

a)

Decimal

b)

Binary

c)

Hexadecimal

d)

Octal

2.

To convert Decimal to binary , this method can be used.

a)

Repeated multiplication by 2

b)

Repeated division by 2

c)

Sum of Powers of 2

d)

either b or c

3.

Binary equivalent of 210 is

a)

1002

b)

012

c)

102

d)

0012

4.

Binary equivalent of 810 is

a)

10002

b)

10102

c)

10112

d)

1002

5.

Convert the 4-bit binary number 1101 to a decimal number.

a)

13

b)

11

c)

12

d)

10

6.

Convert the 8-bit binary number 1001 1011 to a 2-bit hexadecimal number.

a)

9B

b)

9C

c)

8F

d)

9D

7.
The smallest unit of data that use is:
a)
a bit
b)
a byte
c)
a gigabyte
d)
a megabyte
8.
What are the only two numbers you can use in binary?
a)
0 and 1
b)
1 and 2
c)
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
d)
1, 2, 4, 8, 16
9.

How many bits make a byte?

a)

2

b)

4

c)

8

d)

16

10.
Which of these is the correct sequence for the place values for binary numbers?
a)
1, 2, 4, 8, 16, 32, 64, 128
b)
1, 2, 4, 6, 8, 10, 12, 14, 16
c)
1, 2, 3, 4, 5, 6, 7, 8
d)
0, 1
11.

What kind of 'base' system is binary known as?

a)

Base 12

b)

Base 8

c)

Base 2

d)

Base 10

12.

NUMBER SYSTEM WHOSE BASE IS 8

a)

DECIMAL

b)

BINARY

c)

OCTAL

13.

BASE OF NUMBER SYSTEM INDICATES

a)

COUNT OF NUMBER OF DIGITS IN IT

b)

NUMBER OF PLACE VALUES IN IT

14.

TO CONVERT DECIMAL TO OCTAL NUMBER WE HAVE TO

a)

SUBTRACT BY 8

b)

MULTIPLY BY 8^0

c)

DIVIDE BY 8

15.

NAME WHICH NUMBER SYSTEM CONTAINS LETTERS IN IT ?

(a)  

16.

Which of the following is NOT a binary number?

a)

1111

b)

101

c)

11E

d)

000

17.

Which of the following is NOT a hexadecimal number

a)

1A

b)

1D

c)

1E

d)

1G

18.

The left most bit in Binary number system is called as

a)

Most Significant Bit (MSB)

b)

Least Significant Bit (LSB)

19.

In signed magnitude method, the MSB is called as

a)

Sign bit

b)

Parity bit

c)

Magnitude bit

d)

either a or b

20.

Consider the following 8 bit binary number and identity whether it is positive or negative.

110001012

a)

+ve

b)

-ve