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HEAT TRANSFER

Heat Transfer
Removal of __________ heat is involved in the condensation of a vapor under saturated conditions.

Both B & C
Sensible
Latent
Super

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Heat Transfer
A hot body will radiate heat most rapidly, if its surface is

White & polished
Black & rough
Black & polished
White & rough

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Heat Transfer
Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around __________ metres/second.

30
20
1
10

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Heat Transfer
At what value of Prandtl number, the hydrodynamic and thermal boundary layers are identical?

0.5
1.5
1
80

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Heat Transfer
Peclet number (Pe) is given by

Pe = Pr/Re
Pe = Nu.Re
Pe = Re/Pr
Pe = Re.Pr

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