Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place

Heat Transfer
Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place

Both B & C

Between two bodies not in physical contact with each other

From one part of a body to the another part of the same body

Between two bodies in physical contact with each other

Both B & C

Between two bodies not in physical contact with each other

From one part of a body to the another part of the same body

Between two bodies in physical contact with each other

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Heat Transfer
A black body does not __________ radiation.

Absorb or emit

Both B & C

Reflect

Refract

Absorb or emit

Both B & C

Reflect

Refract

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Heat Transfer
In case of a vertical tube evaporator, with increase in the liquor level, the

Both B and C

Capacity of the evaporator is increased

Capacity of the evaporator is decreased

True temperature drop increases

Both B and C

Capacity of the evaporator is increased

Capacity of the evaporator is decreased

True temperature drop increases

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Heat Transfer
For what value of Prandtl number, St = f/2?

2

1

> 1

1.5

2

1

> 1

1.5

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Heat Transfer
Fruit juice (a heat sensitive material) can be concentrated in a __________ evaporator.

High pressure

Falling film

Long tube

None of these

High pressure

Falling film

Long tube

None of these

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Heat Transfer
Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both the cases. The recommended arrangement is

Shell and tube heat exchanger with air inside tubes and steam on shell side

Finned tube heat exchanger with air inside and steam outside

Shell and tube heat exchanger with air on shell side and steam inside tubes

Finned tube heat exchanger with air outside and steam inside

Shell and tube heat exchanger with air inside tubes and steam on shell side

Finned tube heat exchanger with air inside and steam outside

Shell and tube heat exchanger with air on shell side and steam inside tubes

Finned tube heat exchanger with air outside and steam inside

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Heat Transfer

Heat Transfer Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place

Heat Transfer A black body does not __________ radiation.

Heat Transfer In case of a vertical tube evaporator, with increase in the liquor level, the

Heat Transfer For what value of Prandtl number, St = f/2?

Heat Transfer Fruit juice (a heat sensitive material) can be concentrated in a __________ evaporator.

Heat Transfer Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both the cases. The recommended arrangement is

Heat Transfer
Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place

Heat Transfer
A black body does not __________ radiation.

Heat Transfer
In case of a vertical tube evaporator, with increase in the liquor level, the

Heat Transfer
For what value of Prandtl number, St = f/2?

Heat Transfer
Fruit juice (a heat sensitive material) can be concentrated in a __________ evaporator.

Heat Transfer
Air is to be heated by condensing steam. Two heat exchangers are available (i) a shell and tube heat exchanger and (ii) a finned tube heat exchanger. Tube side heat transfer area are equal in both the cases. The recommended arrangement is