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Heat Transfer

Heat Transfer
Kg of liquid evaporated per hour in an evaporator is defined as its

Economy
None of these
Capacity
Steam load

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Heat Transfer
If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law.

Logarithmic
Hyperbolic
Linear
Parabolic

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Heat Transfer
Prandtl and Reynold's analogies are identical for Prandtl number value of

5
1
0.5

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Heat Transfer
Fouling factor for a heat exchanger is given by (where, U₁ = heat transfer co-efficient of dirty surface U₂ = heat transfer co-efficient of clean surface)

1/U₁ - 1/U₂
1/U₂ - 1/U₁
U₁ - U₂
U₂ - U₁

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

Light cream
Black
Grey
White lead

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Heat Transfer
A diathermaneous substance __________ the thermal radiation completely.

Absorbs
Transmits
None of these
Reflects

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