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Temperature Detector MCQ Questions & Answers

Temperature Detector MCQs : This section focuses on the "Temperature Detector". These Multiple Choice Questions (MCQs) should be practiced to improve the Temperature Detector skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.




Question 1

How can corrosion be prevented in a resistance thermometer?

A. by immersing the setup in oil
B. by enclosing the elements in a glass tube
C. by using guard rings
D. by painting the elements

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Question 2

If the sensing element is large, then less amount of heat is required.

A. True
B. False

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Question 3

In a temperature sensing element ________

A. low value of ? is required
B. infinite value of ? is required
C. ? must be zero
D. high value of ? is required

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Question 4

Most metallic conductors have a ________

A. neutral temperature coefficient of resistance
B. negative temperature coefficient of resistance
C. positive temperature coefficient of resistance
D. zero temperature coefficient of resistance

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Question 5

Nickel and its alloys can be used over a temperature range of ________

A. 100 to 450 K
B. 10 to 50 K
C. 0 to 25 K
D. 5 to 15 K

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Question 6

Platinum is used for industrial applications because ________

A. it is cheap
B. it is available readily
C. it is a noble metal
D. it gives accurate measurements

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Question 7

Relation between temperature and resistance of a conductor is ________

A. Rt = Rref [1+t]
B. Rt = Rref [1+??t]
C. Rt = Rref [1-?t]
D. Rt = Rref [1-t]

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Question 8

Resistance temperature detector is ___________

A. a electrical transducer
B. a mechanical transducer
C. a chemical transducer
D. a physical transducer

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Question 9

Resistance thermometer provides the change in electrical resistance.

A. True
B. False

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Question 10

Sensing element in the thermometer must provide ________

A. small change in resistance
B. no change in resistance
C. large change in resistance
D. infinite change in resistance

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Question 11

In a temperature sensing element ________

A. low value of α is required
B. infinite value of α is required
C. α must be zero
D. high value of α is required

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Question 12

Relation between temperature and resistance of a conductor is ________

A. Rt = Rref [1+t]
B. Rt = Rref [1+α∆t]
C. Rt = Rref [1-αt]
D. Rt = Rref [1-t]

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