Fuels and Combustion Which of the following has the highest calorific value? Sub-bituminous coal Lignite Anthracite Peat Sub-bituminous coal Lignite Anthracite Peat ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal tar (produced by high temperature carbonisation) is the main source of Aromatic compounds Paraffins Alphatic compounds Olefins Aromatic compounds Paraffins Alphatic compounds Olefins ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Softening temperature of coal ash is a measure of the __________ of coal. Clinkering tendency Caking tendency Coking tendency Size stability Clinkering tendency Caking tendency Coking tendency Size stability ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of coal charge for the coke ovens reduces the Time of carbonisation Yield of gas and tar All of these Fuel consumption in coking Time of carbonisation Yield of gas and tar All of these Fuel consumption in coking ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which will have the least volatile matter and hence will be the most difficult to ignite? Aanthracite Coke Bituminous coal Semi-bituminous coal Aanthracite Coke Bituminous coal Semi-bituminous coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Cannel coal Has a high volatile matter content and burns with a luminous smoky flame All of these Is a non-banded coal which can be ignited easily with a match stick or candle flame, hence is so named Is non-coking Has a high volatile matter content and burns with a luminous smoky flame All of these Is a non-banded coal which can be ignited easily with a match stick or candle flame, hence is so named Is non-coking ANSWER DOWNLOAD EXAMIANS APP
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