Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning

26.
Fouling factor is used
in heat exchanger design as a safety factor
in case of Newtonian fluids
when a liquid exchanges heat with a gas
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

27.
The natural convection air cooled condensers are used in
domestic refrigerators
water coolers
room air conditioners
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

28.
The process, generally used in winter air-conditioning to warm and humidity the air, is called
humidification.
dehumidification
heating and humidification
cooling and dehumidification
Answer: Option
Explanation:
No answer description is available. Let's discuss.

29.
At 100% relative humidity, wet bulb temperature, dry bulb temperature, dew point temperature and saturation temperature are equal.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.

30.
Bell-Coleman cycle is a
reversed Carnot cycle
reversed Otto cycle
reversed Joule cycle
reversed Rankine cycle
Answer: Option
Explanation:
No answer description is available. Let's discuss.