Fresh orange juice contains 12% (by weight) solids and the rest water 90% of the fresh juice is sent to an evaporator to remove water and subsequently mixed with the remaining 10% of fresh juice. The resultant product contains 40% solids. The kg of water removed from 1 kg fresh juice is

Heat Transfer
Fresh orange juice contains 12% (by weight) solids and the rest water 90% of the fresh juice is sent to an evaporator to remove water and subsequently mixed with the remaining 10% of fresh juice. The resultant product contains 40% solids. The kg of water removed from 1 kg fresh juice is

0.6

0.4

0.5

0.7

0.6

0.4

0.5

0.7

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Heat Transfer
Low thermal conductivity of heat insulating materials is due to its

Dense structure

None of these

High proportion of air space

High specific heat

Dense structure

None of these

High proportion of air space

High specific heat

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Heat Transfer
Heat transfer efficiency leading of energy conservation in a heat exchanger can be achieved by

Enhancing the fluid pumping rate

Keeping the heat transfer surface clean

None of these

Increasing the tube length

Enhancing the fluid pumping rate

Keeping the heat transfer surface clean

None of these

Increasing the tube length

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

Froude number

Kutateladze number

Nusselt number

Lewis relationship

Froude number

Kutateladze number

Nusselt number

Lewis relationship

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Heat Transfer
Leidenfrost point is a term concerned with the

Concentration of a corrosive solution by evaporation

Boiling of a liquid on a hot surface

Condensation of the saturated vapor on a cold surface

Heat transfer between two highly viscous liquids

Concentration of a corrosive solution by evaporation

Boiling of a liquid on a hot surface

Condensation of the saturated vapor on a cold surface

Heat transfer between two highly viscous liquids

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Heat Transfer
Reynold's analogy states that (where, St = Stanton number f = friction factor)

St = f/2

St = f/4

St = f1/2

St = 4f

St = f/2

St = f/4

St = f1/2

St = 4f

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Heat Transfer

Heat Transfer Low thermal conductivity of heat insulating materials is due to its

Heat Transfer Heat transfer efficiency leading of energy conservation in a heat exchanger can be achieved by

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

Heat Transfer Leidenfrost point is a term concerned with the

Heat Transfer Reynold's analogy states that (where, St = Stanton number f = friction factor)

Heat Transfer
Low thermal conductivity of heat insulating materials is due to its

Heat Transfer
Heat transfer efficiency leading of energy conservation in a heat exchanger can be achieved by

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

Heat Transfer
Leidenfrost point is a term concerned with the

Heat Transfer
Reynold's analogy states that (where, St = Stanton number f = friction factor)