# CEC Digital Electronics & Microprocessor Lesson 1, 2 MCQ Answers (Number System)

Number System MCQ :- CEC Digital Electronics And Microprocessor Lesson 1 and 2

## MCQ’S – LESSON 1Answers(Number System)

Q1.________number system is used by the computers.

• Decimal
• Binary
• Octal

Ans :- Binary

Q2. (101.001)2 : Dot Represents

• Decimal Point
• Octal Point
• Binary Point
• Decimal Part

Ans :- Decimal Point

Q3. What is the base or radix of binary number system?

• 10
• 16
• 8

Ans :- 2

Q4. What is MSB of 7896?

• 8

Ans:- 7

Q5. Convert (1011)2 into decimal number

• 10
• 12
• 11
• 16

Ans :- 11

Q6. Decimal equivalent of 110.11 is

• 6.75
• 6.50
• 7.75
• 7.50

Ans :- 6.75

Q7. Decimal  number stored  into a computer  in the form of

• Binary
• Octal
• Any Form

Ans :- Binary

Q8. For the conversion of decimal number into binary number repeatedly divide the number by

• 4
• 2

Ans :- 2

Q9. Convert the 180 decimal number to 8 bit binary number 180.

• 10110100
• 11000011
• 10100011
• 10001110

Ans :- 10110100

Q10. Convert the   binary number  1100111 into decimal number

• 130
• 600
• 103
• 140

Ans :- 103

Q11. Convert   the decimal number 22 into binary number

11110

00110

10110

00011

Ans :- 10110

Q12. Convert the decimal number 101 into binary number

• 1100101
• 0010011
• 1110001
• 101011

Ans :- 1100101

Q13. Which is typically the longest: Bit, Byte, Nibble, Word?

• Bit
• Byte
• Nibble
• Word

Ans :- Word

Q14. Binary equivalent of 0.666 is

• 0.0011
• 0.1101
• 0.1010
• 0.1110

Ans :- 0.1010

Q15. How many digits are required to represent  in binary number system?

• 2

Ans :- 2

## MCQ’S – LESSON 2Answers(Number System)

Q1. Convert B6  into its decimal equivalent.

• 118
• 182
• 60
• 173

Ans :- 182

Q2. one hex  digit is sometimes referred to as

• Byte
• Nibble
• Bit
• Word

Ans :- Nibble

Q3. Hexa is often used in digital applications as a shorthand way to represent strings of bits

• True
• False

Ans :- True

Q4. The hexa decimal equivalent of a decimal number would produce a smaller number than the original decimal number in case of fraction.

• True
• False

Ans :- true

Q5. Hexa decimal letters A through F are used for decimal equivalent value from

• 1 through 6
• 9 through 14
• 10 through  15
• 7 through 12

Ans :– 10 through  15

Q6. The ——————– number system has base of 16

• Octal
• Decimal
• Binary

Q7. Convert (136)H into its binary equivalent

• 000100110110
• 000100010110
• 001000110110
• 100100110110

Ans :- 000100110110

Q8. What is the hexadecimal equivalent of (32.625)10

• 33.B
• 22.C
• 20.A
• 10.D

Ans :- 20 A

Number System MCQ :- CEC Digital Electronics And Microprocessor Lesson 1 and 2