Fuels and Combustion High rate of heating of coke ovens Increases the time of carbonisation May damage its walls due to abrupt excessive swelling of coal None of these Produces larger size coke Increases the time of carbonisation May damage its walls due to abrupt excessive swelling of coal None of these Produces larger size coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant? Ammonium phosphate None of these Ammonium sulphate Ammonium nitrate Ammonium phosphate None of these Ammonium sulphate Ammonium nitrate ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gross heating value of coal is __________ the net heating value. Same as Higher than Lower than None of these Same as Higher than Lower than None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which will have the least volatile matter and hence will be the most difficult to ignite? Coke Aanthracite Semi-bituminous coal Bituminous coal Coke Aanthracite Semi-bituminous coal Bituminous coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fixed carbon in coal is defined as The one which is present in the residue after combustion That present in volatile matters Hundred minus the percentage of volatile matter, ash and moisture The total quantity of carbon present in the coal The one which is present in the residue after combustion That present in volatile matters Hundred minus the percentage of volatile matter, ash and moisture The total quantity of carbon present in the coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³ ), while the C.V. is same on weight basis (i.e., kcal/kg) ? Propane and acetylene Sewage gas and gobar gas Propane and LPG F. gas and coke oven gas Propane and acetylene Sewage gas and gobar gas Propane and LPG F. gas and coke oven gas ANSWER DOWNLOAD EXAMIANS APP
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