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Fuels and Combustion

Fuels and Combustion
Percentage of methane in coke oven gas may be around

5
50
15
25

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Fuels and Combustion
The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C.

550 to 650
100 to 150
700 to 850
350 to 450

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Fuels and Combustion
Spontaneous combustion of coal on storage results due to

Inadequate ventilation
Storage in large heaps with small surface to volume ratio
Low temperature oxidation
All of these

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Fuels and Combustion
Fuel for a fast breeder nuclear reactor is

Uranium
Radium
Plutonium
Neptunium

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Fuels and Combustion
A gaseous fuel in order to develop luminousity on burning, must contain

Hydrocarbons
Hydrogen
Carbon monoxide
Oxygen

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Fuels and Combustion
Most of the coking coals are

None of these
Bituminous
Anthracite
Lignite

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