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

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

Question # 2

The number 10000 would appear just immediately after.

Question # 3

The binary number 10011101 is equal to the hexadecimal number.

Question # 4

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

Question # 5

1268+ 4258= __________

Question # 6

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

Question # 7

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

Question # 8

A letter, number, or a special character is represented by a.

Question # 9

Base 8 is often used in computing because.

Question # 10

Data is represented on a computer by means of a two-state on/off system called

Question # 11

The digits used for hexadecimal number system are.

Question # 12

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

Question # 13

The binary number 101000101011 is equal to the hexadecimal number

Question # 14

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

Question # 15

Number 37510is equivalent in binary system to.

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ECAT Computer Sciences Chapter 4 Important MCQ's

Sr.# Question Answer
1 What is the octal equivalent of the binary system :10111101.?
A. 6758
B. 2758
C. 5728
D. 5738
2 1258(octal) in decimal equivalent is equal to.
A. 8310
B. 8410
C. 8510
D. 8610
3 The hexadecimal number system is widely used in analyzing and programming in.
A. analog computers
B. binary computers
C. decimal computers
D. micro computers
4 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
5 Four-digit binary number 1011 is represented in the decimal system by.
A. 7
B. 9
C. 11
D. 13
6 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
7 Binary number 10101101 is equivalent in decimal form to.
A. 170
B. 171
C. 173
D. 174
8 The number A9D in Hexadecimal system is equivalent to which number in decimal system.
A. 2727
B. 2648
C. 3717
D. 2717
9 The binary number 101000101011 is equal to the hexadecimal number
A. A2D
B. C2D
C. A2B
D. B2C
10 The reason why computers have been designed to use binary numbers is.
A. computer circuits have to handle 2 binary digits rather than 10
B. electronic components, by their very nature, operate in a binary mode
C. everything that can be done with a base of 10 can also be done in binary
D. all of the above

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