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Heat Transfer

Heat Transfer
Viscous & heat sensitive liquids are concentrated in __________ evaporators.

None of these
Agitated film
Open pan
Long tube

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Heat Transfer
Which of the following is not concerned with the heat transfer?

Brinkman number
Stanton number
Schmidt number
Peclet number

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Heat Transfer
Heat waves

Both B and C
Travel in straight line
Can not pass through vacuum
Can be reflected by a mirror

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Heat Transfer
Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid

none of the listed here
for fluids in tubulent flow
when Grashhoff number is very important
for fluids in laminar flow

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Heat Transfer
At what value of Prandtl number, the hydrodynamic and thermal boundary layers are identical?

1.5
0.5
1
80

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Heat Transfer
Which of the following is directly concerned with the heat transfer?

Euler number
Strouhal number
Grashoff number
Sherwood number

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