Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning
Exercise :: Heat Transfer, Refrigeration and Air Conditioning - Section 1
31. |
While designing the refrigeration system of an aircraft, the prime consideration is that the |
A. |
system has high C.O.P. | B. |
power per TR is low | C. |
mass of refrigerant circulated in the system is low | D. |
mass of the refrigeration equipment is low |
Answer: Option D
Explanation:
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32. |
The heat transfer takes place according to |
A. |
Zeroth law of thermodynamics | B. |
First law of thermodynamics | C. |
Second law of thermodynamics | D. |
Kirchhoff's law |
Answer: Option C
Explanation:
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33. |
An electrolux refrigerator is called a __________ absorption system. |
A. |
single fluid | B. |
two fluids | C. |
three fluids |
Answer: Option C
Explanation:
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34. |
The heat transfer by radiation __________ a medium. |
A. |
requires | B. |
does not require |
Answer: Option B
Explanation:
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35. |
Thermal conductivity of water __________ with rise in temperature. |
A. |
remains same | B. |
decreases | C. |
increases | D. |
may increase or decrease depending upon temperature |
Answer: Option D
Explanation:
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