Explore topic-wise MCQs in Heat Transfer.

This section includes 5 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.

For a given value of Nusselt number, the convective surface coefficient h is directly proportional to

A. Length
B. Mass
C. Thermal conductivity
D. Density
Answer» D. Density
Discussion
2.

At the interface of solid body, heat flows by conduction and is given by

A. A (t <sub>s </sub> t <sub>infinity</sub>)
B. h A (t <sub>s </sub> t <sub>infinity</sub>)
C. h (t <sub>s </sub> t <sub>infinity</sub>)
D. h A
Answer» C. h (t <sub>s </sub> t <sub>infinity</sub>)
Discussion
3.

Consider the above problem, calculate the temperature gradient at the surface

A. 44636 degree Celsius/m
B. 34636 degree Celsius/m
C. 24636 degree Celsius/m
D. 14636 degree Celsius/m
Answer» B. 34636 degree Celsius/m
Discussion
4.

The temperature profile at a particular location on a surface is prescribed by the identity
(t s t) / (t s t infinity) = sin ( y/0.015)

A. nIf thermal conductivity of air is stated to be 0.03 W/m K, determine the value of convective heat transfer coefficient
B. 6.48 W/m<sup> 2</sup> K
C. 6.38 W/m<sup> 2</sup> K
D. 6.28 W/m<sup> 2</sup> K
E. 6.18 W/m<sup> 2</sup> K
Answer» D. 6.28 W/m<sup> 2</sup> K
Discussion
5.

The temperature profile at a particular location in a thermal boundary layer is prescribed by n expression of the form
t (y) = A- B y + C y 2

A. nWhere, A, B and Care constants. What is the value of heat transfer coefficient?
B. B k/ (t <sub>s</sub> t<sub> infinity</sub>)
C. 2 B k/ (t <sub>s</sub> t<sub> infinity</sub>)
D. 3 B k/ (t <sub>s</sub> t<sub> infinity</sub>)
E. 4 B k/ (t <sub>s</sub> t<sub> infinity</sub>)
Answer» B. B k/ (t <sub>s</sub> t<sub> infinity</sub>)
Discussion