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

0.7

0.6

0.5

0.4

0.7

0.6

0.5

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Heat Transfer
A cube, sphere & a thin circular plate (all having same mass and made of same material) are all heated to 300°C and allowed to cool in natural air. Which one will cool the slowest ?

Sphere

Cube

All of these

Plate

Sphere

Cube

All of these

Plate

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Heat Transfer
Nusselt number for full developed, laminar, constant property flow in a pipe at uniform heat flux is

0.72

4.364

18

83

0.72

4.364

18

83

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Heat Transfer
Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the

Constant temperature equal to that of the base

Surrounding temperature

Temperature of the fin end

Average temperature of the fin

Constant temperature equal to that of the base

Surrounding temperature

Temperature of the fin end

Average temperature of the fin

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

Rate of heat transfer

Flow velocity

All of these

Turbulence of shell side fluid

Rate of heat transfer

Flow velocity

All of these

Turbulence of shell side fluid

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Heat Transfer
One kilogram of water at 0°C is changed to superheated steam of one atm pressure and 300° C. The major heat consumption in the process will be to

Evaporate the water

Data insufficient, can

To superheat the steam

Heat the water from 0°C to 100°C

Evaporate the water

Data insufficient, can

To superheat the steam

Heat the water from 0°C to 100°C

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Heat Transfer

Heat Transfer A cube, sphere & a thin circular plate (all having same mass and made of same material) are all heated to 300°C and allowed to cool in natural air. Which one will cool the slowest ?

Heat Transfer Nusselt number for full developed, laminar, constant property flow in a pipe at uniform heat flux is

Heat Transfer Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the

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

Heat Transfer One kilogram of water at 0°C is changed to superheated steam of one atm pressure and 300° C. The major heat consumption in the process will be to

Heat Transfer
A cube, sphere & a thin circular plate (all having same mass and made of same material) are all heated to 300°C and allowed to cool in natural air. Which one will cool the slowest ?

Heat Transfer
Nusselt number for full developed, laminar, constant property flow in a pipe at uniform heat flux is

Heat Transfer
Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the

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

Heat Transfer
One kilogram of water at 0°C is changed to superheated steam of one atm pressure and 300° C. The major heat consumption in the process will be to