Aqua ammonia is used as refrigerant in the following type of refrigeration system_________________?

Question: In a spray washing system, if the temperature of water is higher than the dry bulb temperature of entering air, then the air is
[A].

heated and dehumidified

[B].

heated and humidified

[C].

cooled and humidified

[D].

cooled and dehumidified

Answer: Option B

Explanation:

No answer description available for this question.

Question: According to Stefan-Boltzmann law, the total radiation from a black body per second per unit area is directly proportional to the
[A].

absolute temperature

[B].

square of the absolute temperature

[C].

cube of the absolute temperature

[D].

fourth power of the absolute temperature

Answer: Option D

Explanation:

No answer description available for this question.

Question: In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = By-pass factor)
[A].

B.P.F. – 1

[B].

1 – B.P.F.

[C].

[D].

1 + B.RF.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Conduction is the process of heat transfer from one particle of the body to another by the actual motion of the heated particles.
[A].

True

[B].

False

Answer: Option B

Explanation:

No answer description available for this question.

Question: In a reversed Brayton cycle, the heat is absorbed by the air during
[A].

isentropic compression process

[B].

constant pressure cooling process

[C].

isentropic expansion process

[D].

constant pressure expansion process

Answer: Option D

Explanation:

No answer description available for this question.