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

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

Question # 2

Data items are generally classified into which type of codes

Question # 3

The binary number 101000101011 is equal to the hexadecimal number

Question # 4

The digits used for hexadecimal number system are.

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

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

Question # 7

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

Question # 8

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

Question # 9

The binary number 10011101 is equal to the hexadecimal number.

Question # 10

The number 10000 would appear just immediately after.

Question # 11

Base 8 is often used in computing because.

Question # 12

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

Question # 13

The reason why computers have been designed to use binary numbers is.

Question # 14

1258(octal) in decimal equivalent is equal to.

Question # 15

1268+ 4258= __________

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ECAT Class Computer Sciences Chapter 4 Important MCQ's

Sr.# Question Answer
1 The number A9D in Hexadecimal system is equivalent to which number in decimal system.
A. 2727
B. 2648
C. 3717
D. 2717
2 The binary number 10011101 is equal to the hexadecimal number.
A. 9E
B. 9F
C. 9D
D. FF
3 9710(decimal) in octal number system is equivalent to.
A. 1368
B. 1408
C. 1398
D. 1418
4 A letter, number, or a special character is represented by a.
A. bit
B. kilobyte
C. byte
D. megabyte
5 Number 37510is equivalent in binary system to.
A. 101110101
B. 100110101
C. 101110111
D. 101110011
6 Binary number 10101101 is equivalent in decimal form to.
A. 170
B. 171
C. 173
D. 174
7 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
8 Alphanumeric characters are expressed in terms of binary codes. In ASCII (American standard Code for Information Interchange) each character is represented as a
A. 8 bit code
B. 4 bit code
C. 5 bit code
D. 7 bit code
9 Data items are generally classified into which type of codes
A. Numeric
B. Alphanumeric
C. Character
D. All of the above
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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