Heat & Mass Transfer MCQ Questions Answers Mechanical Engineering

Heat & Mass Transfer MCQ Questions Answers – Mechanical Engineering

Heat and mass transfer are fundamental processes in various engineering disciplines that involve the movement of energy and matter from one place to another. Understanding these processes is crucial for designing efficient systems and solving real-world engineering problems. In this article, we will explore a series of multiple-choice questions (MCQs) related to heat and mass transfer, along with their answers and explanations.


1) Which of the following material has least thermal conductivity at room temperature ?

a) Human Skin

b) Urethane

c) Wood

d) Brick

View Answer
Option – b)

2)Heat transfer from one place to another takes place through

a) conduction

b) convection

c) radiation

d) all of above

View Answer
Option – d)

3) Thermal conductivity of wood depends on

a) moisture

b) density

c) temperature

d) All of these

View Answer
Option – d)

4)Overall heat transfer coefficient is associated with
(a) Conduction and radiation
(b) Convection and radiation
(c) Radiation, convection and conduction
(d) None

View Answer
Option – d)

5) The unit of thermal diffusivity is

a) m2/hr0C

b) kJ/m2hr

c) m/hr0C

d) m2/hr

View Answer
Option – d)

6)Radiation heat flux is
(a) σ A T4
(b) σ A dT
(c) σ T4
(d) None

View Answer
Option – c)

7) In which of the following material non-isotropic conductivity is exhibited

a) Lead

b) Wood

c) Copper

d) Brass

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Option – b)

8)Temperature variation in a pipe is

(a) linear

(b) Parabolic

(c) logarithmic

(d) None

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Option – c)

9) Heat transfer by molecular collision in

a) conduction

b) convection

c) radiation

d) scattering

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Option – b)

10)The amount of heat required to raise temperature of a substance by …………..

1°C

1°F

10°C

10°F

View Answer
Option – a)