1000+ Heat & Mass Transfer MCQ Questions and Answers Pdf - 1
Question: 1
The numerical value of which property of air generally drops with rising temperature
(A) thermal conductivity
(B) kinematic viscosity
(C) dynamic viscosity
(D) density
Ans: D
density
Question: 2
Planck's law of radiation is applicable to
(A) thermal radiation
(B) monochromatic radiation
(C) temperature radiation
(D) radiation of any kind
Ans: B
monochromatic radiation
Question: 3
Hygrometer is used to measure
(A) relative humidity
(B) density of liquids
(C) heat exchanged due to vapour
(D) convective heat transfer coefficient
Ans: A
relative humidity
Question: 4
A device for transferring heat from one fluid to another is known as
(A) evaporation
(B) heat exchanger
(C) conductor
(D) radiation
Ans: B
heat exchanger
Question: 5
Maximum heat transfer rate can be expected in case of
(A) counter current flow
(B) co-current flow
(C) laminar flow
(D) turbulent flow
Ans: D
turbulent flow
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