The capacity of double-effect evaporator is less than half of the capacity of two single effects, each of which is operating over same terminal temperature difference, when the

Heat Transfer
The capacity of double-effect evaporator is less than half of the capacity of two single effects, each of which is operating over same terminal temperature difference, when the

Evaporators operate under vacuum

Evaporators opreate at atmospheric pressure

Solution has an elevation of boiling point

None of these

Evaporators operate under vacuum

Evaporators opreate at atmospheric pressure

Solution has an elevation of boiling point

None of these

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Heat Transfer
Which of the following is generally considered as opaque surface towards radiations?

Both solids & liquids

Liquids

Solids

Gases

Both solids & liquids

Liquids

Solids

Gases

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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

Concentrations

Activity co-efficients

Chemical potentials

Mass transfer co-efficients

Concentrations

Activity co-efficients

Chemical potentials

Mass transfer co-efficients

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Heat Transfer
In the equation Q = UAΔt; Δt is

Arithmetic mean temperature difference

Geometric mean temperature difference

Logarithmic mean temperature difference

The difference of average bulk temperatures of hot and cold fluids

Arithmetic mean temperature difference

Geometric mean temperature difference

Logarithmic mean temperature difference

The difference of average bulk temperatures of hot and cold fluids

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Heat Transfer
A graph between __________ is called Wilson plot.

V0.8 Vs . U

1/U Vs . 1/v0.8

1/U Vs . 1/V

1/v0.8 Vs . U

V0.8 Vs . U

1/U Vs . 1/v0.8

1/U Vs . 1/V

1/v0.8 Vs . U

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Heat Transfer
Heat transfer by __________ may not necessarily require the presence of a medium

natural convection

radiation

coduction

none of the listed here

natural convection

radiation

coduction

none of the listed here

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Heat Transfer

Heat Transfer The capacity of double-effect evaporator is less than half of the capacity of two single effects, each of which is operating over same terminal temperature difference, when the

Heat Transfer Which of the following is generally considered as opaque surface towards radiations?

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

Heat Transfer In the equation Q = UAΔt; Δt is

Heat Transfer A graph between __________ is called Wilson plot.

Heat Transfer Heat transfer by __________ may not necessarily require the presence of a medium

Heat Transfer
The capacity of double-effect evaporator is less than half of the capacity of two single effects, each of which is operating over same terminal temperature difference, when the

Heat Transfer
Which of the following is generally considered as opaque surface towards radiations?

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

Heat Transfer
In the equation Q = UAΔt; Δt is

Heat Transfer
A graph between __________ is called Wilson plot.

Heat Transfer
Heat transfer by __________ may not necessarily require the presence of a medium