Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning

31.
While designing the refrigeration system of an aircraft, the prime consideration is that the
system has high C.O.P.
power per TR is low
mass of refrigerant circulated in the system is low
mass of the refrigeration equipment is low
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
The heat transfer takes place according to
Zeroth law of thermodynamics
First law of thermodynamics
Second law of thermodynamics
Kirchhoff's law
Answer: Option
Explanation:
No answer description is available. Let's discuss.

33.
An electrolux refrigerator is called a __________ absorption system.
single fluid
two fluids
three fluids
Answer: Option
Explanation:
No answer description is available. Let's discuss.

34.
The heat transfer by radiation __________ a medium.
requires
does not require
Answer: Option
Explanation:
No answer description is available. Let's discuss.

35.
Thermal conductivity of water __________ with rise in temperature.
remains same
decreases
increases
may increase or decrease depending upon temperature
Answer: Option
Explanation:
No answer description is available. Let's discuss.