1’s, 2’s, 9’s & 10’s Complements – 2 MCQ’s

Digital Circuits Electronics & Communication Engineering

This set of Digital Circuits Multiple Choice Questions & Answers (MCQs) focuses on “1’s, 2’s, 9’s & 10’s Complements – 2″.

1. An overflow is a _________
a) Hardware problem
b) Software problem
c) User input problem
d) Input Output Error

2. An overflow occurs in _________
a) MSD position
b) LSD position
c) Middle position
d) Signed Bit

3. If the number of bits in the sum exceeds the number of bits in each added numbers, it results in _________
a) Successor
b) Overflow
c) Underflow
d) Predecessor

4. Logic circuitry is used to detect _________
a) Underflow
b) MSD
c) Overflow
d) LSD

5. The advantage of 2’s complement system is that _________
a) Only one arithmetic operation is required
b) Two arithmetic operations are required
c) No arithmetic operations are required
d) Different Arithmetic operations are required

6. Which one is used for logical manipulations?
a) 2’s complement
b) 9’s complement
c) 1’s complement
d) 10’s complement

7. 1’s complement can be easily obtained by using _________
a) Comparator
b) Inverter
c) Adder
d) Subtractor

8. The 1’s complements requires _________
a) One operation
b) Two operations
c) Three operations
d) Combined Operations

9. For arithmetic operations only _________
a) 1’s complement is used
b) 2’s complement
c) 10’s complement
d) 9’s complement

10. The addition of +19 and +43 results as _________ in 2’s complement system.
a) 11001010
b) 101011010
c) 00101010
d) 0111110

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