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Heat Transfer

In a shell and tube type heat exchanger, the floating tube bundle heat arrangement is used

CHEMICAL ENGINEERING, Heat Transfer /
Question: In a shell and tube type heat exchanger, the floating tube bundle heat arrangement is used
[A].

in low range of temperature differences.

[B].

in high range of temperature differences.

[C].

because of its low cost.

[D].

to prevent corrosion of the tube bundles.

Answer: Option B

Explanation:

No answer description available for this question.

In a shell and tube type heat exchanger, the floating tube bundle heat arrangement is used Read More »

CHEMICAL ENGINEERING, Heat Transfer

Multiple effect evaporators ar used to

CHEMICAL ENGINEERING, Heat Transfer /
Question: Multiple effect evaporators ar used to
[A].

increase the steam economy & decrease the capacity.

[B].

increase the steam economy & the capacity.

[C].

decrease the steam economy & the capacity.

[D].

decrease the steam economy & increase the capacity.

Answer: Option B

Explanation:

No answer description available for this question.

Multiple effect evaporators ar used to Read More »

CHEMICAL ENGINEERING, 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

CHEMICAL ENGINEERING, Heat Transfer /
Question: 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
[A].

heat the water from 0°C to 100°C.

[B].

evaporate the water.

[C].

to superheat the steam.

[D].

data insufficient, can’t be predicted

Answer: Option B

Explanation:

No answer description available for this question.

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 Read More »

CHEMICAL ENGINEERING, Heat Transfer

If a single tube pass heat exchanger is converted to two pass, then for the same flow rate, the pressure drop per unit length in tube side will

CHEMICAL ENGINEERING, Heat Transfer /
Question: If a single tube pass heat exchanger is converted to two pass, then for the same flow rate, the pressure drop per unit length in tube side will
[A].

increase by 1.8 times

[B].

decrease by 22

[C].

increase by 216

[D].

remain unchanged

Answer: Option C

Explanation:

No answer description available for this question.

If a single tube pass heat exchanger is converted to two pass, then for the same flow rate, the pressure drop per unit length in tube side will Read More »

CHEMICAL ENGINEERING, Heat Transfer

A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of

CHEMICAL ENGINEERING, Heat Transfer /
Question: A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of
[A].

2

[B].

20.8

[C].

20.2

[D].

20.5

Answer: Option B

Explanation:

No answer description available for this question.

A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of Read More »

CHEMICAL ENGINEERING, Heat Transfer

For evaporation of viscous solution in a multiple effect evaporator, the prefered feeding scheme is

CHEMICAL ENGINEERING, Heat Transfer /
Question: For evaporation of viscous solution in a multiple effect evaporator, the prefered feeding scheme is
[A].

forward

[B].

backward

[C].

parallel

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

For evaporation of viscous solution in a multiple effect evaporator, the prefered feeding scheme is Read More »

CHEMICAL ENGINEERING, Heat Transfer