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Which of the following measures the pressure with change in electrical resistance?

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+1 vote
in Fermentation Technology by (72.1k points)
Which of the following measures the pressure with change in electrical resistance?

(a) Bourdon tube

(b) Pressure bellows

(c) Strain gauge

(d) Diaphragm gauge

This question was posed to me in an online interview.

Origin of the question is Instrumentation and Control topic in chapter Instrumentation and Control of Fermentation Technology

1 Answer

+2 votes
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Best answer
Correct answer is (c) Strain gauge

To elaborate: The strain gauge measures the pressure with a change in electrical resistance. It uses a wire subjected to strain result in the change in electrical resistance which can be measured.

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