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Heat Transfer

Heat Transfer
Evaporator tubes are generally

Horizontal
Vertical
Random
Inclined

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Heat Transfer
Economy of an evaporator is influenced by the

Both B & C
Steam pressure
Feed temperature
Number of effect

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Heat Transfer
jH factor for heat transfer depends upon the __________ number.

Reynolds
Nusselt
Prandtl
Biot

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Heat Transfer
Prandtl number is the reciprocal of

Mass diffusivity x Momentum diffusivity
Thermal diffusivity x Mass diffusivity
Thermal diffusivity x Momentum
Thermal diffusivity/Momentum diffusivity

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Heat Transfer
In a forward feed multiple effect, the pressure build up will be

highest at the outlet of the last effect
least at the inlet of the first effect
highest at the inlet of the last effect
least at the outlet of the last effect

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Heat Transfer
Which of the following is the most controlling factor for the rate of bubble detachment from the hot solid surface?

Interfacial tension
Liquid viscosity
Liquid density
Hot surface temperature

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MORE MCQ ON Heat Transfer

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