Nodular cast iron is produced by adding __________ to the molten cast iron.

Question: During heating and dehumidification process, dry bulb temperature
[A].

remains constant

[B].

increases

[C].

decreases

Answer: Option B

Explanation:

No answer description available for this question.

Question: Degree of saturation or percentage humidity is
[A].

the mass of water vapour present in 1 m3 of dry air

[B].

the mass of water vapour present in 1 kg of dry air

[C].

the ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure.

[D].

the ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure

Answer: Option C

Explanation:

No answer description available for this question.

Question: According to Newton’s law of cooling, the heat transfer from a hot body to a cold body is
[A].

directly proportional to the surface area

[B].

directly proportional to the difference of temperatures between the two bodies

[C].

either (a) or (b)

[D].

both (a) and (b)

Answer: Option D

Explanation:

No answer description available for this question.