Chemical Engineering - Fuels and Combustion
Exercise :: Fuels and Combustion - Section 1
46.
When incomplete combustion loss is high, the flue gas analysis shows large amount of
Answer: Option B
Explanation:
47.
The gas which contributes maximum to the heating value of natural gas is
Answer: Option D
Explanation:
48.
The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C.
A. 100 to 150 B. 350 to 450 C. 550 to 650 D. 700 to 850
Answer: Option B
Explanation:
49.
Yield of coke oven gas in low temperature carbonisation of coal is about __________ Nm3 /ton of dry coal.
Answer: Option B
Explanation:
50.
Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the
A. requirement of large volume combustion chamber. B. risk of explosion. C. chances of clinker formation. D. incomplete combustion of coal.
Answer: Option B
Explanation:
