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Heat Transfer

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

None of these
1
4.88
1.49

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Heat Transfer
In case of evaporators, liquid entrainment results primarily due to

high heat transfer rate
high heat transfer rate
high vacuum in the evaporator
foaming of the solution

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Heat Transfer
For specified tube outside diameter, higher BWG means higher

none of the listed here
tube thickness
cross-sectional area
weight per unit length

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Heat Transfer
In an interphase heat transfer process, the equilibrium state corresponds to equality of temperature in the two phases, while the condition for equilibrium in an interphase mass transfer process is equality of

Chemical potentials
Concentrations
Activity co-efficients
Mass transfer co-efficients

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

None of the listed here
Reynolds
Prandtl
Both Reynolds & Prandtl

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Heat Transfer
Use of transverse baffles in a shell and tube heat exchanger is done to increase the

Flow velocity
Rate of heat transfer
Turbulence of shell side fluid
All of these

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