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Heat Transfer

Heat Transfer
__________ equation relates the thermal conductivity of a solid to its temperature.

Antonie
Kistyakowski
Kopp's
Lee's

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Heat Transfer
Convective heat transfer co-efficient in case of fluid flowing in tubes is not affected by the tube length/diameter ratio, if the flow is in the __________ zone.

transition
highly turbulent
None of the listed here
laminar

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Heat Transfer
The purpose of providing expansion bellows in the shell of tubular exchanger is to

Impart structural strength
Facilitate increase of shell length, if needed
Account for the uneven expansion of shell and tube bundles
Increase the heating load

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

IR2
None of the listed here
I2R
IR

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

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Heat Transfer
In SI units, fouling factor is expressed in

m°K/W
m²°K
W/m²°K
m²°K/W

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