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Heat Transfer

Heat Transfer
Open pan evaporators are preferred to be used, when the solution to be concentrated is

Scaling
Salty
Highly viscous
Corrosive

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Heat Transfer
Radiation heat losses from satisfactorily insulated high pressure boilar may be about __________ percent.

7
18
26
1

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Heat Transfer
Sensible heat of hot industrial flue gases can not be recovered by a/an

Ceramic recuperator
Economiser
None of these
Regenerator

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Heat Transfer
Reynold's analogy states that (where, St = Stanton number f = friction factor)

St = f1/2
St = 4f
St = f/4
St = f/2

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Heat Transfer
Heat transfer by __________ may not necessarily require the presence of a medium

radiation
coduction
natural convection
none of the listed here

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Heat Transfer
The unit of heat transfer co-efficient in SI unit is

W/m2°K
W/m°K
J/M2°K
J/m°K

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