Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke Causes brittleness in steel Decreases the abrasion resistance of coke Decreases the hardness of coke None of these Causes brittleness in steel Decreases the abrasion resistance of coke Decreases the hardness of coke None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen. Not related to Higher than Same as Lower than Not related to Higher than Same as Lower than ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace gas compared to coke oven gas has Higher calorific value Lower ignition temperature Lower theoretical flame temperature Narrower limit of inflammability Higher calorific value Lower ignition temperature Lower theoretical flame temperature Narrower limit of inflammability ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Weathering of coal during storage causes All of these Increase in its friability Decrease in its caking capacity Reduction in coal size All of these Increase in its friability Decrease in its caking capacity Reduction in coal size ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as M = 1.1 A M = A M = 1.8 A M = 0.5 A M = 1.1 A M = A M = 1.8 A M = 0.5 A ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Insitu theory and drift theory are related to the Coalification Origin of petroleum oil Origin of coal Variation of coal quality with depth Coalification Origin of petroleum oil Origin of coal Variation of coal quality with depth ANSWER DOWNLOAD EXAMIANS APP
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