9th Class MCQs Computer Science Chapter No.5

9th Class MCQs Computer Science Chapter No.5 Old Course,BISE Bahawalpur,Lahore Board,Rawalpindi Board,Faisalabad Board,Matric Exam online Preparation,Quiz

Book Name : Computer Science
Class / Grade : 9th
Level : (Secondary)
Chapter No. : 05
Chapter Name : NUMBER SYSTEM
Book Publisher : Punjab Text Book Board Lahore
MCQ from Text Book : 47

Exams conduct By: Board of Intermediate and Secondary Education Punjab
Note : All MCQs questions must be taken in Annual and Supplementary Papers from these MCQs

5

Class 9th - Computer Science Chapter No.05

1 / 47

Which of the following binary numbers is equivalent to decimal 10?

1111

1001

1010

1100

2 / 47

In hexadecimal number system, A is equal to decimal number

11

13

10

12

3 / 47

If the most significant bit of the signed number is 1, that number is:

Negative

Positive

Incorrect

Octal

4 / 47

MSB stands for..

Most Significant bit

Maximum single bit

Minimum single bit

Middle sum byte

5 / 47

The sign bit is defined as:

1 for negative

MSB

ALL

0 for positive

6 / 47

The BCD Number for decimal 16 is :

11011011

10110

1000

10000

7 / 47

The base of binary number system is:

10

2

16

8

8 / 47

The number of bits in a nibble is:

16

4

8

32

9 / 47

The base of octal number system is:

10

2

16

8

10 / 47

The F in Hexadecimal system is equivalent to _____________ in Decimal System.

14

12

13

15

11 / 47

(011)4752105 is:

Alphanumeric data

Numeric data & Alphanumeric data

Alphabetic data

Numeric data

12 / 47

The hexadecimal number 1016 is equal to

10<sub>10</sub>

All

16<sub>10</sub>

100<sub>10</sub>

13 / 47

What is the decimal value of 23?

4

6

10

8

14 / 47

The E in hexadecimal is equal to binary number......

1110

1101

1111

1001

15 / 47

In hexadecimal number system, A is equal to decimal number

12

11

13

10

16 / 47

The most widely used coding scheme for representing characters in computers is:

ASCII

EBCDIC

BCD

Unicode

17 / 47

The 2’s complement of 0101010 is

11

None

1010101

1010110

18 / 47

The hexadecimal number 10016 is equal to

256<sub>10</sub>

All

400<sub>8</sub>

000100000000<sub>2</sub>

19 / 47

The difference of 111₂- 001₂ equals:

100

11

110

101

20 / 47

How many characters in ASCII 8-bit code can represent?

256 characters

500 characters

1000 characters

128 characters

21 / 47

A collection of 8 bits is known as:

Bit

Byte

Binary

Octal

22 / 47

How many characters can unicode represents ....

2048

1024

65536

256

23 / 47

What is the decimal value of 2⁴ is equal to?

32

8

16

64

24 / 47

Unicode is a ....

32-Bit Code

16-Bit Code

8-Bit Code

64-Bit Code

25 / 47

1’s complement of a negative binary number can be calculated by:

Reversing the bit in the number

Reversing the bit in the number and adding one

Can not be calculated

Reversing the bit in the number & Reversing the bit in the number and adding one

26 / 47

The data after the processing is called:

Information

Data

Storage

Procedure

27 / 47

The D in hexadecimal is Equal to binary number:

1101

1111

1011

1001

28 / 47

Binary multiplication 1x0=________

1

0

1

10

29 / 47

3 x10¹ + 7 x 10° is equal to:

10

370

37

3.6

30 / 47

The base of hexadecimal number system is:

16

8

2

10

31 / 47

The l's complement of 10011101 is:

10011111

11011110

1100010

10011110

32 / 47

The number of digits in Hexadecimal system is:

10

8

2

16

33 / 47

The base of decimal number system is:

16

2

10

8

34 / 47

Which of the following is a data type?

ALL

Alphanumeric

Numeric

Alphabetic

35 / 47

The number of digits in decimal system is:

7

9

8

10

36 / 47

The binary number 1101 is equal to octal number

12

14

16

15

37 / 47

Which of the following data type is used to represent names of students:

Numeric data & Alphabetic data

Numeric data

Alphanumeric data

Alphabetic data

38 / 47

The decimal number 18 is equal to the binary number

11110

10111

11011

10010

39 / 47

BCD stands for

Binary coded decimal

Byte coded decimal

Base coded decimal

Bidirectional coded decimal

40 / 47

The numbers stored and transmitted inside a computer in:

Alphanumeric form

Octal form

Decimal form

Binary form

41 / 47

A collection of raw facts and figure is called:

Output

Data

Information

Processing

42 / 47

2⁰ is equal to:

3

1

2

0

43 / 47

In hexadecimal number system, C is equal to decimal number

12

13

10

11

44 / 47

What is the decimal value of 2^-1 is equal to?

0.1

0.25

0.05

0.5

45 / 47

The FF in hexadecimal system is equivalent to decimal system number

128

254

255

256

46 / 47

The number of digits in octal system is:

8

9

7

10

47 / 47

How many characters in ASCII 7-bit code can represent?

256 characters

500 characters

128 characters

364 characters

Your score is

The average score is 80%

0%

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