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Heat Transfer

Heat Transfer
__________ chart is known as transient heat conduction chart.

Cox
Mollier's
Heisler's
Dirhing's

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Heat Transfer
Temperature profile in steady state heat transfer is

Linear
parabolic
hyperbolic
none of the listed here

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Heat Transfer
In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass __________ through the heat exchanger.

Thrice
Once
Four times
Twice

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Heat Transfer
A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides

Higher economy
Lower economy
Both A & B
Lower capacity

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Heat Transfer
Nusselt number is the ratio of the temperature gradient at the wall to

Heat flux
Temperature difference
That across the entire pipe
None of these

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Heat Transfer
For an ideal black body

Transmissivity = 1
Absorptivity = 1
Reflectivity = 1
Emissivity = 0

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