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
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
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
Explanation: Feedback system in temperature balance system is used to improve accuracy in measurement.
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
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
Explanation: Thermostat is a device which is an example of closed loop thermal control.
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
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
Explanation: Temperature gradient is a measure of temperature in kelvin measure per meter length.
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
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
Explanation: Temperature gradient is a quantity with both direction and magnitude, and hence surely it is a vector quantity.
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
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.
- Check Instrumentation Engineering Books
- Apply for Instrumentation Engineering Internship
- Practice Instrumentation Engineering MCQs
- Check Instrumentation Transducers Books
