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Heat Transfer

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

Agitated film
Long tube
Open pan
None of these

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Heat Transfer
Film boiling occurs at __________ pressure.

very high
none of the listed here
atmospheric
negative

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Heat Transfer
The units of resistance to heat transfer is

W⁻¹m²K
J.m⁻¹.K⁻¹
J.m⁻².K⁻¹
W.m⁻².K⁻¹

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Heat Transfer
Which type of heat exchanger is preferred for heavy heat loads ?

None of the listed here
Series and parallel set of shell and tube
Plate fine
Double pipe

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Heat Transfer
Kirchoff's law is applicable to

Only volumes and not to surfaces
Total radiation only
Monochromatic radiation only
Both A and B

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Heat Transfer
Rate of crystallisation does not depend upon the

Turbulence within the solution
Number and active surface area of the crystals
None of these
Extent of supersaturation

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