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Heat Transfer

Heat Transfer
1 BTU/hr.ft.°F is equal to __________ kcal/hr. m.°C.

4.88
1.49
None of these
1

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Heat Transfer
Radiator of an automobile engine is a __________ type of heat exchanger.

Direct contact
Cross-current
Counter-current
Co-current

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Heat Transfer
Open pan evaporators are preferred to be used, when the solution to be concentrated is

Highly viscous
Salty
Corrosive
Scaling

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Heat Transfer
Radiation heat losses from satisfactorily insulated high pressure boilar may be about __________ percent.

1
26
18
7

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Heat Transfer
LMTD can't be used as such without a correction factor for the

Multipass heat exchanger
All of these
Baffled heat exchanger
Condensation of mixed vapour in a condenser

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Heat Transfer
Steam condensate is recovered by steam traps and recycled for use as boiler feed water, because of its low

All of these
Hardness
Dissolved soilds content
Suspended solids content

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