Heat Transfer

The amount of radiation mainly depends on___________________?

Byadmin January 24, 2019August 16, 2021

The amount of radiation mainly depends on___________________?

A. nature of body
B. temperature of body
C. type of surface of body
D. all of the above
E. none of the above

Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

The by-pass factor of a cooling coil decreases with

Question: The by-pass factor of a cooling coil decreases with
[A].

decrease in fin spacing and increase in number of rows
[B].
increase in fin spacing and increase in number of rows
[C].
increase in fin spacing and decrease in number of rows
[D].
decrease in fin spacing and decrease in number of rows

Answer: Option A

Explanation:

No answer description available for this question.

Read More The by-pass factor of a cooling coil decreases with
CHEMICAL ENGINEERING | Heat Transfer

For a multipass shell and tube heat exchanger, the LMTD correction factor is always

Question: For a multipass shell and tube heat exchanger, the LMTD correction factor is always
[A].

1
[B].
> 1
[C].
< 1
[D].
between 1 & 2

Answer: Option C

Explanation:

No answer description available for this question.

Read More For a multipass shell and tube heat exchanger, the LMTD correction factor is always
CHEMICAL ENGINEERING | Heat Transfer

Maximum heat transfer rate is achieved in __________ flow.

Question: Maximum heat transfer rate is achieved in __________ flow.
[A].

co-current
[B].
counter-current
[C].
turbulent
[D].
laminar

Answer: Option C

Explanation:

No answer description available for this question.

Read More Maximum heat transfer rate is achieved in __________ flow.
CHEMICAL ENGINEERING | Heat Transfer

In the free convection regime of pool boiling, the heat flux is proportional to

Question: In the free convection regime of pool boiling, the heat flux is proportional to
[A].

Δt1/2
[B].
Δt2
[C].
Δt5/4
[D].
Δt

Answer: Option C

Explanation:

No answer description available for this question.

Read More In the free convection regime of pool boiling, the heat flux is proportional to
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

During humidification process, __________ increases.

Question: During humidification process, __________ increases.
[A].

wet bulb temperature
[B].
relative humidity
[C].
dry bulb temperature
[D].
specific humidity

Answer: Option B

Explanation:

No answer description available for this question.

Read More During humidification process, __________ increases.
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

Hydrogen is used in electrolux refrigeration system so as to __________ the rate of evaporation of the liquid ammonia passing through the evaporator.

Question: Hydrogen is used in electrolux refrigeration system so as to __________ the rate of evaporation of the liquid ammonia passing through the evaporator.
[A].

equalise
[B].
reduce
[C].
increase

Answer: Option C

Explanation:

No answer description available for this question.

Read More Hydrogen is used in electrolux refrigeration system so as to __________ the rate of evaporation of the liquid ammonia passing through the evaporator.

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