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Fuels and Combustion

Fuels and Combustion
Quantity of coke oven gas produced by high temperature carbonisation of one ton of dry coal may be around __________ Nm³.

3000
30, 000
300
30

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Fuels and Combustion
Which of the following has the highest flame velocity?

CO
C₂H₆
CH₄
H₂

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Fuels and Combustion
The most matured coal out of the following is

Sub-bituminous
Lignite
Bituminous
Semi-anthracite

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Fuels and Combustion
Fuel for a fast breeder nuclear reactor is

Radium
Uranium
Neptunium
Plutonium

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Fuels and Combustion
A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the 'carpet loss'. The carpet loss may be of the order of __________ cms.

5 to 15
1 to 2
3 to 4
20 to 40

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Fuels and Combustion
The gas which contributes maximum to the heating value of natural gas is

CO₂
H₂
CH₄
CO

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