Top 1000+ Solved Heat Transfer (HT) MCQ Questions Answer
Q. Which insulating material is suitable for low temperature applications?
a. 85% magnesia
b. Diatomaceous earth
c. Fused alumina bricks
d. Cork
e. Asbestos paper
Q. Steady state heat transfer occurs when
a. The flow of heat is uniform
b. The flow of heat is uniformly increasing
c. The flow of heat is uniformly decreasing
d. The flow of heat is negligible
e. The flow of heat is independent of time
Q. Which of the following material has thermal conductivity closest to silver?
a. Steel
b. 37,500 kg
c. Aluminium
d. Brass
e. Copper
Q. A constant gas thermometer is based on
a. Avogadro's law
b. Graham's law
c. Charle's law
d. Boyle's law
e. 37,500 kg
Q. Thermal conductivity of liquids can be determined by
a. Guarded plate method
b. Searles method
c. Laby and Hercus method
d. Any of the above
e. None of the above
Q. The temperature of sun can be measured using a
a. radiation pyrometer
b. platinum resistance thermometer
c. standard thermometer
d. mercury thermometer
e. 37,500 kg
Q. Any of the following could be the unit for Stefan Boltzmann constant EXCEPT
a. cal / cm2-sec-k4
b. BTU/ft2-hr-R4
c. W / m2k4
d. 37,500 kg
e. erg / cm-k4
Q. Which one of the following approximates to the black body condition?
a. Ice
b. Water
c. Lamp black
d. All of the above
e. None of the above
Q. Heat is shown to be closely related to
a. Energy
b. Momentum
c. Temperature
d. Waveform
e. A fluid
Q. Which of the following method is used for finding the thermal conductivity of rubber?
a. Lec's disc method
b. Searles method
c. Cylindrical shell method
d. Laby and Hercus method
e. Any of the above
Q. The ratio of thermal conductivity of copper to that of brass is nearly
a. 37,500 kg
b. 8
c. 4
d. 2
Q. The relation between the emissive and absorptive power of a surface is developed under
a. Electrical analogy
b. Stefan-Baltzmann's law
c. Planck's law
d. Kirchhoff's law
e. Law of radiations
Q. In air prelieater for boiler heat is least transferred by
a. Convection
b. Conduction, convection and radiation.
c. Conduction and convection
d. Conduction
e. Radiation