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Fuels and Combustion

Fuels and Combustion
Atomising steam to fuel oil ratio in a burner should be around

0.5
2.5
3.5
1.5

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Fuels and Combustion
'Wind loss' resulting from unscientific storage of coal may be the order of about __________ percent.

7.5
2.5
14.5
10.5

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Fuels and Combustion
Caking coal is desirable for

All of these
Burning on firebars
Burning on travelling grate
Coke making

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Fuels and Combustion
Which of the following gaseous fuels has the lowest calorific value?

Refinery gas
Blast furnace gas
Converter gas
Gobar gas

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Fuels and Combustion
High excess air in combustion of fuels results in

Smoky flame
Increased fuel consumption
None of these
Incomplete combustion

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Fuels and Combustion
Carbon Content by weight in air dried wood may be about __________ percent.

80
25
50
10

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