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Heat Transfer

Heat Transfer
Steam consumption in kg/hr in case of an evaporator is given by (where, C & E are capacity the economy of the evaporator respectively)

CE
E/C
C/E
1/CE

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Heat Transfer
__________ chart is known as transient heat conduction chart.

Cox
Mollier's
Heisler's
Dirhing's

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Heat Transfer
It is not preferable to use superheated steam in evaporators, because of its very

none of the listed here
low film co-efficient
high pressure
high temperature

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Heat Transfer
During crystallisation, formation of crystal can occur in __________ solution only.

Supersaturated
All of these
Saturated
Undersaturated

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Heat Transfer
The average heat transfer co-efficient over the entire length of the plate (ha) and the local heat transfer co-efficient (hL), in case of heat transfer over a flat plate in lminar zone is related as

Ha = hL
Ha = 2hL
Ha = 0.8hL
Ha= 5hL

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Heat Transfer
The dimensionless group in mass transfer that is equivalent to Prandtl number in heat transfer is

Nusselt number
Sherwood number
Schmidt number
Stanton number

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