Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning
Exercise :: Heat Transfer, Refrigeration and Air Conditioning - Section 8
| 41. |
During sensible heating of air __________ decreases. |
| A. |
wet bulb temperature | | B. |
relative humidity | | C. |
dry bulb temperature | | D. |
specific humidity |
Answer: Option B
Explanation:
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| 42. |
The overall coefficient of heat transfer is used in problems of |
| A. |
conduction | | B. |
convection | | C. |
radiation | | D. |
conduction and convection |
Answer: Option D
Explanation:
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| 43. |
The boiling point of R-12 is about - 30°C. |
Answer: Option A
Explanation:
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