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Heat Transfer

Heat Transfer
A BTU/hr.ft.2 °F is equal to

None of these
1 kcal/hr. m²°C
4.88 kcal/hr. m.2°C
1 kcal/hr. m².°K

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Heat Transfer
__________ chart is known as transient heat conduction chart.

Mollier's
Dirhing's
Cox
Heisler's

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Heat Transfer
Nusselt number (for forced convection heat transfer) is a function of the __________ number.

None of the listed here
Prandtl
Both Reynolds & Prandtl
Reynolds

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Heat Transfer
Nusselt number for full developed, laminar, constant property flow in a pipe at uniform heat flux is

0.72
18
83
4.364

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Heat Transfer
Economy of a multiple effect evaporator is not influenced much by the

rate of heat transfer
boiling point elevations
ratio of the weight of the thin liquor to thick liquor
temperature of the feed

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Heat Transfer
Dropwise condensation is promoted on a/an __________ surface.

Oily
Smooth
Glazed
Coated

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