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Fuels and Combustion

Fuels and Combustion
Coke ovens in steel plant are heated by

Coke oven gas
Electricity
Mixed gas
Both B & C

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Fuels and Combustion
Increase in ash content of blast furnace coke

Reduces its consumption in the furnace
Increases its consumption in the furnace
Decreases its hardness and abrasion resistance
Does not affect its consumption in the furnace

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Fuels and Combustion
Efficiency of the combustion of a fuel is judged by the __________ the flue gas.

% of O₂in
Temperature of
Colour of
%of CO₂ in

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Fuels and Combustion
Coke oven gas compared to blast furnace gas is

More explosive and inflammable
Lighter
Less poisonous
All of these

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Fuels and Combustion
Pensky-Marten apparatus is used for those oils, whose flash points are __________ °F.

>120
90-110

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Fuels and Combustion
Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher

Higher C/H ratio
Calorific value
Difference in gross & net calorific value
Sulphur content

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