Fuels and Combustion Quantity of coke produced from metallurgical coal may be around __________ percent. 95 75 50 30 95 75 50 30 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gray King Assay and Swelling Index of a coal is a measure of its Swelling characteristics Abradability Resistance to impact breakage Agglutinating properties Swelling characteristics Abradability Resistance to impact breakage Agglutinating properties ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During its calorific value determination by bomb calorimeter, coal is combusted by None of these Air Oxygen enriched air Oxygen None of these Air Oxygen enriched air Oxygen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Highly caking coals Produce weak coke Both B and C Produce strong coke May damage the coke oven walls during carbonisation Produce weak coke Both B and C Produce strong coke May damage the coke oven walls during carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Very __________ coals are completely devoid of cokability i.e, it is non coking. Neither A nor B Both A & B Young Mature Neither A nor B Both A & B Young Mature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of combustion air is done to Complete the combustion of fuel Reduce its requirement for effecting the complete combustion Increase the calorific value of the fuel Increase the adiabatic flame temperature Complete the combustion of fuel Reduce its requirement for effecting the complete combustion Increase the calorific value of the fuel Increase the adiabatic flame temperature ANSWER DOWNLOAD EXAMIANS APP