Mechatronics Test Objective Type Questions & Answers

Questions

21 The capability of convention relay systems for complex operations is ___________ that of the PLCs .

A poor than

B excellent than

C as good as

D unpredictable as

View Answer

Answer: poor than

22 How is the noise immunity of PLCs to electrical noises as compared to that of conventional relay controllers?

A poor

B excellent

C as good as noise immunity of conventional relay controllers

D unpredictable

View Answer

Answer: poor

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23 Micro-controllers are ________________ than the PLCs.

A bulky and expensive

B bulky but cheaper

C portable and cheaper

D portable but expensive

View Answer

Answer: portable and cheaper

24 Digital to Analog Conversion is ______________ Analog to Digital Conversion.

A less complex than

B more complex than

C as complex as

D unpredictable

View Answer

Answer: less complex than

25 According to Nyquist theorem, the sampling rate should be _________ as fast as the highest frequency of the signal being measured or sampled.

A twice

B thrice

C ten times

D hundred times

View Answer

Answer: twice

26 Data acquisition of all the physical quantities in the real world is done in

A the analog mode

B the digital mode

C either analog mode or digital mode

D none of the above

View Answer

Answer: the analog mode

27 The task of time sharing, in which large number of data signals are sent through cables or buses, is performed by____

A sensors or transducers

B central processing unit (CPU)

C multiplexer

D analog to digital converter

View Answer

Answer: multiplexer

28 What is/are the maximum number of arrow/s (Input/s) allowed to go inside the block?

A One

B Two

C Three

D Four

View Answer

Answer: One

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