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Computer Science Set-1
Digital Logic
49

Digital Logic MCQ with Answers

49) The full adder adds the Kth bits of two numbers to the

difference of the previous bits

sum of all previous bits

carry from ( K - 1 )THbit

sum of previous bit

Answer is:

carry from ( K - 1 )THbit

Digital Logic MCQ with Answers

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Related Digital Logic MCQ with Answers

50) In the following question, match each of the items A, B and C on the left with an approximation item on the right
A. Shift register can be used
B. A multiplexer can be used
C. A decoder can be used
1. for code conversion
2. to generate memory slip to select
3. for parallel to serial conversion
4. as many to one switch
5. for analog to digital conversion

A-1 B-2 C-3

A -3 B-4 C-1

A-5 B-4 C-2

A-1 B-3 C-5

Answer is:

A -3 B-4 C-1

51) Extremely low power dissipation and low cost per gate can be achieved in:

MOS ICs

C MOS ICs

TTL ICs

ECL ICs

Answer is:

C MOS ICs

52) An example of a universal building block is:

EX-OR gate

AND gate

OR gate

NOR gate

Answer is:

NOR gate

53) The dual of the switching function x + yz is:

x+yz

x̄ + ȳz̄

x(y+z)

x̄(ȳ + z̄)

Answer is:

x(y+z)

Digital Logic MCQ with Answers

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