Explore topic-wise MCQs in Heat Transfer.

This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Heat Transfer knowledge and support exam preparation. Choose a topic below to get started.

1.

Most unsteady heat flow occurs

A. Through the walls of the refrigerator
B. During annealing of castings
C. Through the walls of the furnace
D. Through lagged pipe carrying steam
Answer» C. Through the walls of the furnace
Discussion
2.

During a cold winter season, a person prefers to sit near a fire. Which of the following modes of heat transfer provides him the maximum heat?

A. Conduction from the fire
B. If it is near the fire, convection sounds good
C. Convection and radiation together
D. Radiation will provide quick warmth
Answer» E.
Discussion
3.

Identify the wrong statement

A. The process of heat transfer is an irreversible process
B. For heat exchange, a temperature gradient must exist
C. A material medium is not necessary for heat transmission
D. Heat flow doesn’t depend on temperature
Answer» E.
Discussion
4.

Regarding one dimensional heat transfer, choose the correct statement.

A. Steady – f (x), Unsteady – f (x, t)
B. Steady – f (x, t), Unsteady – f (x)
C. Steady – f (x, y, t), Unsteady – f (x)
D. Steady – f (y, z), Unsteady – f (y)
Answer» B. Steady – f (x, t), Unsteady – f (x)
Discussion
5.

DURING_A_COLD_WINTER_SEASON,_A_PERSON_PREFERS_TO_SIT_NEAR_A_FIRE._WHICH_OF_THE_FOLLOWING_MODES_OF_HEAT_TRANSFER_PROVIDES_HIM_THE_MAXIMUM_HEAT??$

A. Conduction from the fire
B. If it is near the fire, convection sounds good
C. Convection and radiation together
D. Radiation will provide quick warmth
Answer» E.
Discussion
6.

Most_unsteady_heat_flow_occurs$

A. Through the walls of the refrigerator
B. During annealing of castings
C. Through the walls of the furnace
D. Through lagged pipe carrying steam
Answer» C. Through the walls of the furnace
Discussion
7.

Identify the wrong statemen?

A. The process of heat transfer is an irreversible process
B. For heat exchange, a temperature gradient must exist
C. A material medium is not necessary for heat transmission
D. Heat flow doesn’t depend on temperature
Answer» E.
Discussion
8.

The appropriate rate equation for convective heat transfer between a surface and adjacent fluid is prescribed by

A. Newton’s first law
B. Wein’s displacement law
C. Kirchhoff’s law
D. Newton’s law of cooling
Answer» E.
Discussion
9.

Heat transfer takes place in liquids and gases is essentially due to

A. Radiation
B. Conduction
C. Convection
D. Conduction as well as convection
Answer» D. Conduction as well as convection
Discussion
10.

Heat transfer takes place according to which law?

A. Newton’s law of cooling
B. Second law of thermodynamics
C. Newton’s second law of motion
D. First law of thermodynamics
Answer» C. Newton‚Äö√Ñ√∂‚àö√ë‚àö¬•s second law of motion
Discussion
11.

Heat transfer in a long, hollow cylinder which is maintained at uniform but different temperatures on its inner and outer surfaces may be assumed to be taking place in which direction?

A. Axial only
B. Unpredictable
C. Radial only
D. No heat transfer takes place
Answer» D. No heat transfer takes place
Discussion
12.

Which of the following is an example of steady state heat transfer?

A. Boilers and turbines
B. Cooling of I.C engine
C. Chilling effect of cold wind on a warm body
D. Electric bulb cools down by the surrounding atmosphere
Answer» E.
Discussion
13.

Which statement is true regarding steady state condition?

A. There is a variation in temperature in the course of time
B. Heat exchange is constant
C. It is a function of space and time coordinates
D. Internal energy of the system changes
Answer» C. It is a function of space and time coordinates
Discussion
14.

Regarding one dimensional heat transfer, choose the correct statement

A. Steady- f (x), Unsteady- f (x, t)
B. Steady- f (x, t), Unsteady- f (x)
C. Steady- f (x, y, t), Unsteady- f (x)
D. Steady- f (y, z), Unsteady- f (y)
Answer» E.
Discussion