# Number System – 1 MCQ’s

This set of Digital Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Number System – 1″.

1. The parameter through which 16 distinct values can be represented is known as ________

a) Bit

b) Byte

c) Word

d) Nibble

2. If the decimal number is a fraction then its binary equivalent is obtained by ________ the number continuously by 2.

a) Dividing

b) Multiplying

c) Adding

d) Subtracting

3. Any signed negative binary number is recognised by its ________

a) MSB

b) LSB

c) Byte

d) Nibble

4. The representation of octal number (532.2)8 in decimal is ________

a) (346.25)10

b) (532.864)10

c) (340.67)10

d) (531.668)10

5. An important drawback of binary system is ________

a) It requires very large string of 1’s and 0’s to represent a decimal number

b) It requires sparingly small string of 1’s and 0’s to represent a decimal number

c) It requires large string of 1’s and small string of 0’s to represent a decimal number

d) It requires small string of 1’s and large string of 0’s to represent a decimal number

6. The largest two digit hexadecimal number is ________

a) (FE)16

b) (FD)16

c) (FF)16

d) (EF)16

7. The decimal equivalent of the binary number (1011.011)2 is ________

a) (11.375)10

b) (10.123)10

c) (11.175)10

d) (9.23)10

8. The decimal equivalent of the octal number (645)_{8} is ______

a) (450)_{10}

b) (451)_{10}

c) (421)_{10}

d) (501)_{10}

9. Representation of hexadecimal number (6DE)H in decimal:

a) 6 * 16^{2} + 13 * 16^{1} + 14 * 16^{0}

b) 6 * 16^{2} + 12 * 16^{1} + 13 * 16^{0}

c) 6 * 16^{2} + 11 * 16^{1} + 14 * 16^{0}

d) 6 * 16^{2} + 14 * 16^{1} + 15 * 16^{0}

10. The quantity of double word is ________

a) 16 bits

b) 32 bits

c) 4 bits

d) 8 bits

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