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HEAT TRANSFER

Heat Transfer
Film boiling occurs at __________ pressure.

very high
none of the listed here
atmospheric
negative

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Heat Transfer
Heat flux through several resistances in series in analogous to the current flowing through several.

none of the listed here
resistances in parallel
capacitors in series
resistances in series

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Heat Transfer
Double pipe heat exchangers are used

when heat transfer area required is very high
because it occupies less floor area
because it is less costly
when heat transfer area required is very low

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

Both Reynolds & Prandtl
Prandtl
Reynolds
None of the listed here

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

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

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