ECAT Pre Computer Science MCQ Test For Computer Chapter 4 With Answer

MCQ's Test For ECAT Computer Science Chapter 4 Computer Arithmetic & Number System

Try The MCQ's Test For ECAT Computer Science Chapter 4 Computer Arithmetic & Number System

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ECAT Computer Science Chapter 4 Computer Arithmetic & Number System

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Question # 1

9710(decimal) in octal number system is equivalent to.

Question # 2

The number 10000 would appear just immediately after.

Question # 3

1258(octal) in decimal equivalent is equal to.

Question # 4

Four-digit binary number 1011 is represented in the decimal system by.

Question # 5

Alphanumeric characters are expressed in terms of binary codes. In ASCII (American standard Code for Information Interchange) each character is represented as a

Question # 6

The number ABC in Hexadecimal system is equivalent to which number in decimal system.

Question # 7

Base 8 is often used in computing because.

Question # 8

The number A9D in Hexadecimal system is equivalent to which number in binary system.

Question # 9

The main advantage of hexadecimal number is the case of conversion from hexadecimal to.

Question # 10

Octal number system uses the digit 0 to 7. The equivalent of Octal 126 in decimal system is.

Question # 11

The hexadecimal number system is widely used in analyzing and programming in.

Question # 12

1268+ 4258= __________

Question # 13

The binary number 101000101011 is equal to the hexadecimal number

Question # 14

Data items are generally classified into which type of codes

Question # 15

What is the octal equivalent of the binary system :10111101.?

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ECAT Computer Sciences Chapter 4 Important MCQ's

Sr.# Question Answer
1 The digits used for hexadecimal number system are.
A. A through Z
B. 1 through 16
C. 0 through 15
D. 0 through 9 and A through F
2 The number 10000 would appear just immediately after.
A. FFFF (hex)
B. 1111 (binary)
C. 7777 (octal)
D. all of the above
3 Data items are generally classified into which type of codes
A. Numeric
B. Alphanumeric
C. Character
D. All of the above
4 The main advantage of hexadecimal number is the case of conversion from hexadecimal to.
A. ASCII code
B. binary
C. octal
D. decimal
5 9710(decimal) in octal number system is equivalent to.
A. 1368
B. 1408
C. 1398
D. 1418
6 Four-digit binary number 1011 is represented in the decimal system by.
A. 7
B. 9
C. 11
D. 13
7 Base 8 is often used in computing because.
A. there are 8 bit in a byte
B. calculations become easier by using base 8
C. electronic circuits can be made econmically
D. it can represent long strings of binary 1's an 0's in a more compact form
8 The number A9D in Hexadecimal system is equivalent to which number in decimal system.
A. 2727
B. 2648
C. 3717
D. 2717
9 Octal number system uses the digit 0 to 7. The equivalent of Octal 126 in decimal system is.
A. 80
B. 82
C. 86
D. 84
10 Data is represented on a computer by means of a two-state on/off system called
A. the octal system
B. the binary system
C. a word
D. ROM

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