Explore topic-wise MCQs in Heat Transfer.

This section includes 9 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_THE_SAME_MATERIAL_AND_SAME_TEMPERATURE_DIFFERENCE,_THE_HEAT_FLOW_IN_TERMS_OF_SHAPE_FACTOR_IS_GIVEN_BY?$

A. S k d t
B. k d t/S
C. 2S k/d t
D. 2S/3
Answer» B. k d t/S
Discussion
2.

For the same amount of fabrication material and same inside capacity, the heat loss is lowest in$

A. Sphere
B. Cylinder
C. Rectangle
D. Cube
Answer» C. Rectangle
Discussion
3.

Which is true regarding a complete rectangular furnace?

A. 6 walls, 12 edges and 6 corners
B. 0 walls, 2 edges and 4 corners
C. 6 walls, 12 edges and 8 corners
D. 2 walls, 6 edges and 8 corners
Answer» D. 2 walls, 6 edges and 8 corners
Discussion
4.

Shape factor for sphere is

A. 4 π r <sub>1</sub> r <sub>2</sub>
B. 4 π r <sub>1</sub> r <sub>2</sub>/r <sub>2 </sub>– r <sub>1</sub>
C. 4 π /r <sub>2 </sub>– r <sub>1</sub>
D. r <sub>1</sub> r <sub>2</sub>/r <sub>2 </sub>– r <sub>1</sub>
Answer» C. 4 ‚âà√¨‚àö√ë /r <sub>2 </sub>‚Äö√Ñ√∂‚àö√ë‚àö¬® r <sub>1</sub>
Discussion
5.

The annealing furnace for continuous bar stock is open at the ends and has interior dimensions of 0.6 m * 0.6 m * 1.5 m long with a wall 0.3 m thick all around. Calculate the shape factor for the furnace?

A. 15.24 m
B. 16.34 m
C. 14.54 m
D. 13.76 m
Answer» B. 16.34 m
Discussion
6.

Shape factor for cylinder is

A. 6 π l/log <sub>e</sub> (r <sub>2</sub>/r <sub>1</sub>)
B. 4 π l/log <sub>e</sub> (r <sub>2</sub>/r <sub>1</sub>)
C. π l/log <sub>e</sub> (r <sub>2</sub>/r <sub>1</sub>)
D. 2 π l/log <sub>e</sub> (r <sub>2</sub>/r <sub>1</sub>)
Answer» E.
Discussion
7.

For a prescribed temperature difference, bodies with the same shape factor will allow heat conduction proportional to

A. k/2
B. 2k
C. k
D. k/4
Answer» D. k/4
Discussion
8.

Shape factor for a plane wall is equal to

A. A/δ
B. 2A/δ
C. 3A/δ
D. 4A/δ
Answer» B. 2A/‚âà√≠¬¨‚Ä¢
Discussion
9.

“All the factors relating to the geometry of the sections are grouped together into a multiple constant called the shape factor”.

A. True
B. False
Answer» C.
Discussion