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Computer Science Set-1
Digital Logic
137

Digital Logic MCQ with Answers

137) A n-stage ripple counter will count up to

2n

2n-1

n

2n-1

Answer is:

2n

Digital Logic MCQ with Answers

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Related Digital Logic MCQ with Answers

138) The clock signals are used in sequential logic circuits to

Tell the time of the day

Tell how much time has elapsed since the system was turned on

Carry parallel data signals

Synchronize events in various parts of system

Answer is:

Synchronize events in various parts of system

139) 74L5138 chip functions as

Decoder/demultiplexer

Encoder

Multiplexer

Demultiplexer

Answer is:

Decoder/demultiplexer

140) A sequential circuit outputs a ONE when an even number (> 0) of one ′s are input; otherwise the output is ZERO. The minimum number of states required is

0

1

2

None of these

Answer is:

2

141) A shift register can be used for

Digital delay line

Serial to parallel conversion

Parallel to serial conversion

All of these

Answer is:

All of these

Explanation:

A shift register can be used for
* Digital delay line
* Serial to parallel conversion
* Parallel to serial conversion

Digital Logic MCQ with Answers

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