Electronics and Communication Engineering - Digital Electronics

26. 

A mod-10 counter can divide the clock frequency by a factor of

A. 10
B. 20
C. 210
D. 102

Answer: Option A

Explanation:

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27. 

In a digital circuit, a clock is a

A. crystal type
B. multivibrator
C. flip-flop
D. free running multivibrator

Answer: Option D

Explanation:

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28. 

In a RS flip-flop no change occurs during

A. prohibited mode
B. set mode
C. reset mode
D. disable mode

Answer: Option D

Explanation:

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29. 

Out of multiplexer and demultiplexer, which can be used as a logic function generator?

A. Multiplexer only
B. Demultiplexer only
C. Both
D. None

Answer: Option A

Explanation:

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30. 

Binary 1000 will be the result of which of the following?

A. Binary 1000 - 100
B. Binary 1011 - 1111
C. Binary 1111 - 111
D. Binary 11111 - 1111

Answer: Option C

Explanation:

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