Mechanical Engineering - Thermodynamics
Exercise :: Thermodynamics - Section 4
| 11. |
The lower calorific value of fuel may be obtained by adding the heat of steam formed during combustion to the higher calorific value. |
Answer: Option B
Explanation:
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| 12. |
One kg of carbon monoxide requires 4/7 kg of oxygen and produces |
| A. |
11/3 kg of carbon dioxide gas | | B. |
7/3 kg of carbon monoxide gas | | C. |
11/7 kg of carbon dioxide gas | | D. |
8/3 kg of carbon monoxide gas |
Answer: Option C
Explanation:
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| 13. |
The molecular mass expresssed in gram (i.e. 1 g - mole) of all gases, at N. T. P., occupies a volume of |
| A. |
0.224 litres | | B. |
2.24 litres | | C. |
22.4 litres | | D. |
224 litres |
Answer: Option C
Explanation:
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| 14. |
The absolute zero pressure will be |
| A. |
when molecular momentum of the system becomes zero | | B. |
at sea level | | C. |
at the temperature of - 273 K | | D. |
at the centre of the earth |
Answer: Option A
Explanation:
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| 15. |
The gas in cooling chamber of a closed cycle gas turbine is cooled at |
| A. |
constant volume | | B. |
constant temperature | | C. |
constant pressure | | D. |
none of these |
Answer: Option C
Explanation:
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