Temperature & Pressure Transducers - MCQs with answers

Temperature & Pressure Transducers - MCQs with answers

1. Which reversible phenomenon in a thermocouple device exhibits the absorption and liberation of heat during flow of current through the two dissimilar copper-iron and iron-copper junctions under the application of an external e.m.f by transforming these junctions to be hot and cold respectively?

a. Seebeck Effect
b. Peltier Effect
c. Thompson Effect
d. None of the above

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2. Which among the below stated does not belong to the category of analog transducers?

a. Shaft Encoder
b. LVDT
c. Thermistor
d. Strain-gauge

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3. Which resistive elements are used to measure the combinational form of translational and rotational motions in resistance potentiometers?

a. Helipots
b. Bellows
c. Capsules
d. Bourdon tubes

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