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Chemical Engineering - Heat Transfer

Exercise : Heat Transfer - Section 8
1.
The type of liquor circulation system to be ' employed in evaporators (viz. natural or forced circulation) is determined mainly by the __________ of the liquid.
viscosity
density
thermal conductivity
corrosive nature
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
In case of surface condensers, a straight line is obtained on plotting __________ on an ordinary graph paper.
1/-0.8
-0.8
-2
1/-2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
Thermal diffusivity is the most important in heat transfer by
conduction
radiation
condensation
natural convection
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
(NGr x NPr) is called the __________ number.
Graetz
Reyleigh
Nusselt
Stanton
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
A dephlegmator is a
total condenser
vacuum evaporator
partial condenser
double pipe heat exchanger
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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