Fuels and Combustion Calorific value of bituminous coal may be around __________ Kcal/kg. 500 6500 1500 20000 500 6500 1500 20000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In general, the limit of inflammability/explosion limit of fuel gases is widened by the All of these Increase in temperature (i.e. preheating) Increase in gas pressure Use of pure oxygen for combustion instead of air All of these Increase in temperature (i.e. preheating) Increase in gas pressure Use of pure oxygen for combustion instead of air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of coal on grate, clinker formation is increased by the Use of thick fire bed Use of preheated primary air Low fusion point of ash (< 1100° C) All of these Use of thick fire bed Use of preheated primary air Low fusion point of ash (< 1100° C) All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas produced by high temperature carbonisation of coal (as compared to that produced by low temperature carbonisation), has Higher calorific value Lower hydrogen content Neither A nor B Both A & B Higher calorific value Lower hydrogen content Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Turndown ratio of a gas burner is equal to the Maximum to minimum heat input ratio Both A & B Minimum to maximum heat input ratio Maximum to minimum permissible gas flow rate Maximum to minimum heat input ratio Both A & B Minimum to maximum heat input ratio Maximum to minimum permissible gas flow rate ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Insitu theory and drift theory are related to the Origin of petroleum oil Origin of coal Coalification Variation of coal quality with depth Origin of petroleum oil Origin of coal Coalification Variation of coal quality with depth ANSWER DOWNLOAD EXAMIANS APP
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