1000+ Heat Transfer MCQ Questions and Answers - 1

Question: 1

Thermal diffusivity is

(A) a dimensionless parameter

(B) a configuration for heat conduction

(C) a mathematical formula only

(D) a physical property of the material

Question: 2

The relation between the emissive and absorptive power of a surface is developed under

(A) Stefan Boltzman’s law

(B) Electrical analogy

(C) Planck’s law

(D) Kirchhoff’s law

Question: 3

Which of the following material has highest value of thermal diffusivity?

(A) lead

(B) wood

(C) mineral wool

(D) concrete

Question: 4

Which method can be used for heating wood?

(A) radiation heating

(B) dielectric heating

(C) resistance heating

(D) flame heating

Question: 5

A constant gas thermometer is based on

(A) Avogadro’s law

(B) Boyle’s law

(C) Charle’s law

(D) Graham’s law