Fuels and Combustion In high temperature carbonisation (as compared to low temperature carbonisation) of coal, the Aromatic content of tar produced is more Ignition temperature of coke produced is less Tar yield is more Gas yield is less Aromatic content of tar produced is more Ignition temperature of coke produced is less Tar yield is more Gas yield is less ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Percentage of hydrogen in coke oven gas may be around 10 60 45 25 10 60 45 25 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The optimum percentage of excess air for combustion depends upon the __________ of the fuel. Ignition temperature Calorific value Type (solid, liquid or gaseous) Sulphur content Ignition temperature Calorific value Type (solid, liquid or gaseous) Sulphur content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Highly caking coals May damage the coke oven walls during carbonisation Produce strong coke Produce weak coke Both B and C May damage the coke oven walls during carbonisation Produce strong coke Produce weak coke Both B and C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion __________ prohibits the use of alcohols directly in petrol engines. Low flash point Low calorific value Low octane number High cost & availability Low flash point Low calorific value Low octane number High cost & availability ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ignition temperature of a fuel in air is __________ that in pure oxygen. Equal to More than Less than Either more or less; depends on the type of fuel Equal to More than Less than Either more or less; depends on the type of fuel ANSWER DOWNLOAD EXAMIANS APP
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