Chemical Engineering - Fuels and Combustion

26. 

Quantity of coke produced from metallurgical coal may be around __________ percent.

A. 30
B. 50
C. 75
D. 95

Answer: Option C

Explanation:

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27. 

Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis.

A. 500
B. 750
C. 950
D. 1100

Answer: Option B

Explanation:

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28. 

Out of the following fuels, the difference between gross and net calorific value will be minimum in case of

A. coke oven gas
B. water gas
C. natural gas
D. blast furnace gas

Answer: Option D

Explanation:

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29. 

Fuel for a fast breeder nuclear reactor is

A. plutonium
B. uranium
C. radium
D. neptunium

Answer: Option A

Explanation:

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30. 

Which of the following gaseous fuels is likely to have the highest gross calorific value?

A. Sewage gas
B. LPG
C. Producer gas
D. Natural gas

Answer: Option B

Explanation:

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