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

0.4

0.6

0.5

0.7

0.4

0.6

0.5

0.7

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Heat Transfer
Economy of a multiple effect evaporator is not influenced much by the

temperature of the feed

rate of heat transfer

ratio of the weight of the thin liquor to thick liquor

boiling point elevations

temperature of the feed

rate of heat transfer

ratio of the weight of the thin liquor to thick liquor

boiling point elevations

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

None of these

High proportion of air space

High specific heat

Dense structure

None of these

High proportion of air space

High specific heat

Dense structure

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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

Heat transfer between two highly viscous liquids

Condensation of the saturated vapor on a cold surface

Concentration of a corrosive solution by evaporation

Boiling of a liquid on a hot surface

Heat transfer between two highly viscous liquids

Condensation of the saturated vapor on a cold surface

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Heat Transfer
In an extended surface heat exchanger, fluid having lower co-efficient

Flows through the tube

Can flow either inside or outside the tubes

Should not be used as it gives very high pressure drop

Flows outside the tubes

Flows through the tube

Can flow either inside or outside the tubes

Should not be used as it gives very high pressure drop

Flows outside the tubes

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Heat Transfer
Which of the following has the lowest Prandtl number?

Molten sodium (a coolant used in fast breeder reactor)

Dilute H₂SO₄

Transformer oil

Water

Molten sodium (a coolant used in fast breeder reactor)

Dilute H₂SO₄

Transformer oil

Water

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Heat Transfer

Heat Transfer Economy of a multiple effect evaporator is not influenced much by the

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

Heat Transfer Leidenfrost point is a term concerned with the

Heat Transfer In an extended surface heat exchanger, fluid having lower co-efficient

Heat Transfer Which of the following has the lowest Prandtl number?

Heat Transfer
Economy of a multiple effect evaporator is not influenced much by the

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

Heat Transfer
Leidenfrost point is a term concerned with the

Heat Transfer
In an extended surface heat exchanger, fluid having lower co-efficient

Heat Transfer
Which of the following has the lowest Prandtl number?