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Heat Transfer

Heat Transfer
Correction is applied to LMTD for __________ flow.

None of these
Cross
Counter
Parallel

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Heat Transfer
Heat produced when a steady state current, I passes through an electrical conductor having resistance, 'R' is

IR2
IR
None of the listed here
I2R

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Heat Transfer
When warm and cold liquids are mixed, the heat transfer is mainly by

convection
conduction
none of the listed here
radiation

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Heat Transfer
Bulk of the convective heat transfer resistance from a hot tube surface to the fluid flowing in it, is

In the central core of the fluid
None of these
Uniformly distributed throughout the fluid
Mainly confined to a thin film of fluid near the surface

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Heat Transfer
In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is

None of these
Linear
Hyperbolic
Parabolic

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Heat Transfer
In a single evaporator system, the steam economy __________ by creating vacuum in the evaporator.

Increases
Decreases
Remains constant
May increase or decrease, depends on the vacuum

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