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Heat Transfer

Heat Transfer
Evaporator tubes are generally

Horizontal
Vertical
Inclined
Random

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Heat Transfer
Calburn analogy is applicable for the value of Prandtl number from

0.001 to 1
0.5 to 5
0.6 to 120
120 to 400

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Heat Transfer
In a forward feed multiple effect evaporator unit

None of these
Viscosity of liquid is highest in first effect
No pump is required to withdraw the product from the last effect
Transfer from effect to effect is done by pumps

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Heat Transfer
LMTD can't be used as such without a correction factor for the

All of these
Condensation of mixed vapour in a condenser
Multipass heat exchanger
Baffled heat exchanger

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Heat Transfer
In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always

> 1
< 1
∞
1

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Heat Transfer
__________ paint has the minimum absorption co-efficient.

Light cream
White lead
Grey
Black

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MORE MCQ ON Heat Transfer

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