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Heat Transfer

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

Latent
Sensible
Both B & C
Super

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Heat Transfer
In case of parallel flow heat exchanger, the lowest temperature theoretically attainable by the hot fluid is __________ the outlet temperature of the cold fluid.

Less than
More than
Either more or less than (depending upon the fluid)
Equal to

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Heat Transfer
In a shell and tube type heat exchanger, the floating tube bundle heat arrangement is used

To prevent corrosion of the tube bundles
In low range of temperature differences
In high range of temperature differences
Because of its low cost

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Heat Transfer
Multiple effect evaporators are commonly used in the manufacture of P. Paper Q. Superphosphate R. Sugar S. Fats

P and R
P and Q
P and S
R and S

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Heat Transfer
The thermal radiation emitted by a body is proportional to Tn, where T is its absolute temperature. The value of 'n' is exactly 4 for

Black painted bodies only
A black body
All bodies
Polished bodies only

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Heat Transfer
The ratio of the total emissive power to the absorptivity for all bodies is same at ther-mal equilibrium. This is __________ law.

Wien's displacement
Kirchoffs
Planck's
Stefan-Boltzman

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