Instrumentation Transducers Questions and Answers – Temperature Balance System

This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Temperature Balance System”.

1. Internal temperature of a hot body is measured by measuring __________________
a) Temperature of surrounding medium
b) Temperature of external surface
c) Direct measurement
d) Cannot measure internal temperature
View Answer

Answer: b
Explanation: External surface temperature is measured and by estimating temperature gradient, the internal temperature can be found.

2. Temperature gradient of a substance is _________________
a) Positive constant
b) Negative constant
c) Zero
d) Variable
View Answer

Answer: d
Explanation: Temperature gradient is a variable, which may show variation in temperature measured.

3. Feedback system is used to ____________
a) Cancel use of temperature gradient
b) To reduce delay in measurement
c) To improve accuracy
d) None of the mentioned
View Answer

Answer: c
Explanation: Feedback system in temperature balance system is used to improve accuracy in measurement.
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4. If temperature T1 of material A is equal to temperature T2 of material B, then which of the following are correct?
a) Heat flow from A to B
b) Heat flow from B to A
c) No heat flow
d) Temperature at the junction increases
View Answer

Answer: c
Explanation: If temperature of two materials are equal, no heat flow occurs between materials.

5. Which of the following represents closed loop thermal control?
a) Thermistor
b) Thermostat
c) Thermocouple
d) All of the mentioned
View Answer

Answer: b
Explanation: Thermostat is a device which is an example of closed loop thermal control.
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6. Which of the following true for temperature gradient?
a) Dimensional quantity
b) Dimensionless quantity
c) Unit less quantity
d) SI unit is K/m2
View Answer

Answer: a
Explanation: Temperature gradient is a vector quantity with both magnitude and dimension.

7. Which of the following represents unit for temperature gradient?
a) K/m2
b) K
c) K/m
d) K/s
View Answer

Answer: c
Explanation: Temperature gradient is a measure of temperature in kelvin measure per meter length.
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8. Which of the following is correct for temperature gradient?
a) Describes direction of temperature change
b) Describes rate of temperature change
c) Describes both direction and rate of temperature change
d) None of the mentioned
View Answer

Answer: c
Explanation: Temperature gradient is a factor which describes both rate and direction of temperature change.

9. Temperature gradient is a scalar quantity.
a) True
b) False
View Answer

Answer: b
Explanation: Temperature gradient is a quantity with both direction and magnitude, and hence surely it is a vector quantity.
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10. Which of the following represents the rate of heat loss of a body?
a) Initial temperature
b) Final temperature
c) Difference in temperature between body and surrounding
d) None of the mentioned
View Answer

Answer: c
Explanation: Difference in temperature between body and surrounding is a direct measure of heat loss by body.

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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