Instrumentation Transducers Questions and Answers – Multiplexers and Demultiplexers

This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Multiplexers and Demultiplexers”.

1. Which of the following is correct for multiplexer?
a) Several inputs and single output
b) Single input and several outputs
c) Single input and single output
d) Several inputs and several outputs
View Answer

Answer: a
Explanation: Multiplexer has several inputs and a single output line and it is used for data selection.

2. Multiplexers work with ________________
a) Analog signal
b) Digital signal
c) Both analog and digital signal
d) None of the mentioned
View Answer

Answer: c
Explanation: Multiplexers work with both analog and digital signals.

3. TDM stands for _________________
a) Time direct measurement
b) Time division multiplexing
c) Time direct multiplexing
d) Time division measurement
View Answer

Answer: b
Explanation: TDM or Time division multiplexing is a type of multiplexing.
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4. Which of the following is analogous to multiplexer?
a) Data selector
b) Data multiplexer
c) Data filter
d) None of the mentioned
View Answer

Answer: a
Explanation: Multiplexer is similar to data selector which is used to select data from multiple input data.

5. Which of the following represent multiple input single output switch?
a) Multiplexer
b) De multiplexer
c) Both multiplexer and demultiplexer
d) None of the mentioned
View Answer

Answer: a
Explanation: Multiplexer select one data line among multiple data lines and they represent multiple input single output switch.

6. Schematic symbol of multiplexer is __________________
a) Isosceles triangle
b) Isosceles trapezoid
c) Equilateral triangle
d) Rectangle
View Answer

Answer: b
Explanation: Multiplexer and demultiplexer is schematically represented using isosceles trapezoid.

7. In digital multiplexer selector line is _______________
a) Analog value
b) Digital value
c) Unpredictable
d) None of the mentioned
View Answer

Answer: b
Explanation: In digital multiplexer selector line is of digital value.
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8. Which of the following is not a multiplexer?
a) 8-to-1 line
b) 16-to-1 line
c) 4-to-1 line
d) 1-to-4 line
View Answer

Answer: d
Explanation: Multiplexer is a multiple input single output system.

9. Demultiplexer act as an encoder.
a) True
b) False
View Answer

Answer: b
Explanation: Demultiplexer is basically a decoder in function.
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10. Multiplexer can be used as PLD.
a) True
b) False
View Answer

Answer: a
Explanation: Multiplexer can be used as PLD, by specifying the logic arrangement in the input signals, a custom logic circuit can be created.

Sanfoundry Global Education & Learning Series – Instrumentation Transducers.

To practice all areas of Instrumentation Transducers, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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