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Heat Transfer

Heat Transfer
The unit of conductance in SI unit is

W/m²
W/m
W/m°K
W/°K

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Heat Transfer
For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator.

None of these
High pressure
Backward feed
Vacuum

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Heat Transfer
In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is

Hyperbolic
None of these
Linear
Parabolic

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Heat Transfer
An evaporator while concentrating an aqueous solution from 10 to 40% solids evaporates 30000 kg of water. The amount of solids handled by the system in kg is

4600
9000
4000
3000

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Heat Transfer
Which has the lowest Prandtl number?

Aqueous solution
Lube oil
Liquid metal
Water

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Heat Transfer
Trap is used to remove __________ from steam pipe lines.

Non-condensables
None of these
Condensate
Steam

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