1000+ GATE Chemical Engineering Heat Transfer Questions & Answers Pdf - 1
Question: 1
Which of the following has the minimum absorptivity?
(A) iron plates
(B) refractory bricks
(C) coal dust
(D) aluminium foil
Ans: D
aluminium foil
Question: 2
Which of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger?
(A) corrosiveness and fouling characteristics
(B) density
(C) viscosity
(D) pressure
Ans: B
density
Question: 3
In a shell and tube heat exchanger, floating head is used for
(A) less corrosion of tubes
(B) large temperature differentials
(C) high heat transfer co-efficient
(D) low pressure drop
Ans: B
large temperature differentials
Question: 4
View factor is important in heat transfer by
(A) radiation
(B) steady state conduction
(C) forced convection
(D) natural convection
Ans: A
radiation
Question: 5
Baffles are provided in heat exchangers to increase the
(A) fouling factor
(B) heat transfer rate
(C) heat transfer area
(D) heat transfer co-efficient
Ans: D
heat transfer co-efficient
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