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Heat Transfer

Heat Transfer
Removal of __________ heat is involved in the condensation of a vapor under saturated conditions.

Sensible
Super
Latent
Both B & C

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Heat Transfer
Which of the following is concerned with both heat and mass transfer ?

Kutateladze number
Lewis relationship
Froude number
Nusselt number

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Heat Transfer
In a co-current double pipe heat exchanger used for condensing saturated steam over the inner tube, if the entrance and exit conditions of the coolant are interchanged, then the rate of condensation will

Increase
Remain unchanged
Decrease
Either increase or decrease; depends on the coolant flow rate

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Heat Transfer
Unsteady state heat conduction occurs, when

Temperature distribution is independent of time
Three dimensional heat flow is concerned
Heat flows in one direction only
Temperature distribution is dependent on time

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Heat Transfer
Boiling of milk in an open vessel is an example of __________ boiling.

None of these
Saturated nucleate
Film
Sub-cooled

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Heat Transfer
Which of the following is unimportant in forced convection ?

Grashhoff number
Reynolds number
Prandtl number
none of the listed here

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