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Heat Transfer

Heat Transfer
Graetz number is given by

mCp/kμ
mCp/kL
kL/mCp
kμ/mCp

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Heat Transfer
An equipment which converts the latent or sensible heat of one fluid into the latent heat of vaporisation of another, is called a

recuperator
boiler
regenerator
heat exchanger

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Heat Transfer
The most conducive surface for dropwise condensation to occur is the __________ surface.

Coated
Smooth
Oily
Glazed & polished

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Heat Transfer
Air is best heated with steam in a heat exchanger of

double pipe type with fin on air side
double pipe type with fin on steam side
plate type
shell and tube type

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Heat Transfer
Which is the most suitable for cold viscous feed?

Forward feed
Backward feed
Parallel feed
Mixed feed

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Heat Transfer
_______ paint has the maximum absorption coefficient.

Black
Grey
Yellow
White

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