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Chemical Engineering - Fuels and Combustion

Exercise : Fuels and Combustion - Section 7
11.
Oxygen required for theoretically complete combustion of 1 Nm3 methane is __________ Nm3.
2
4
6
1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Bomb calorimeter is used for the determination of calorific value of the __________ fuels.
gaseous
solid
liquid
both (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
As the C/H ratio of the fuel increases, the amount of CO2 formed on combustion __________ for the same percentage of excess air.
decreases
increases
remains same
may increase or decrease depending on the type of fuel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
Which of the following fuel gases has the highest calorific value ?
Natural gas.
Coal bed methane (CBM).
Liquefied petroleum gas (LPG).
Sewage gas.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Calorific value as determined by bomb calorimeter is the
higher calorific value at constant volume.
gross calorific value at constant pressure.
lower calorific value at constant pressure.
net calorific value at constant volume.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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