5.Number System 1

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  1. Which one of the following is correct ?

(A) (17)10 = (17)16

(B) (17)10 = (17)8

(C) (17)10 = (10111)2

(D) (17)10 = (10001)2

Answer: (D)

  1. Minimum number of bits required to store any 3 digit decimal number is equal to

(A) 3 (B) 5

(C) 8 (D) 10

Answer: (D)
  1. Symbols A-F are used in which one of the following ?

(A) Binary number system

(B) Decimal number system

(C) Hexadecimal number system

(D) Octal number system

Answer: (C)
  1. Binary equivalent of decimal number 35 is

(A) 100011

(B) 110001

(C) 110101

(D) 101011

Answer: (A)
  1. Which one of the following represents the binary equivalent of the decimal number 25 ?

(1) 10101 (2) 01101 

(3) 11001 (4) 11011

Answer: (3)

  1. If the binary equivalent of the decimal number 48 is 110000, then the binary equivalent of the decimal number 51 is given by

(1) 110011 (2) 110010

(3) 110001 (4) 110100

Answer: (1)

 

Q-9 If the binary equivalent of the decimal number 53 is 110101, then the binary equivalent of the decimal number 50 is given by:

Options:-

  1. 110011
  2. 110010
  3. 110001
  4. 110100
Ans:2
  1. What is the decimal equivalent of binary number 1100110?

(1) 102 (2) 204

(3) 153 (4) 51

Ans: 1

  1. What is the binary equivalent of decimal number 75?

(1) 1101001 (2) 101001

(3) 100101 (4) 1001011

Ans:4

  1. Computer uses which number system to store data and perform calculations

(1) Binary (2) Octal

(3) Decimal (4) Hexadecimal

Ans: 1

Q.14 A-F system is used in which of the following number system?

  1. Binary
  2. Octal
  3. Hexa- decimal
  4. Decimal

Ans:3

Q.15 What is the binary number for decimal number 9?

  1. 1100
  2. 1001
  3. 0111
  4. 1011

Ans:2

Q.16 Which of the following number systems uses two numbers to represent data in compute? 

  1. Bicentennial 
  2. Biometric 
  3. Binary 
  4. Byte 

Ans:3

Q.17 Which of the following is the binary equivalent of the decimal number 35? 

  1. 100001
  2. 100101 
  3. 100011
  4. 101001
Ans:3
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