Fuels and Combustion Froth floatation is used for Removing ash from the coal based on difference in specific gravity of coal and ash Washing fine coal dust (< 0.5 mm size) Washing lump coal (> 80 mm size) All of these Removing ash from the coal based on difference in specific gravity of coal and ash Washing fine coal dust (< 0.5 mm size) Washing lump coal (> 80 mm size) All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal containing high amount of volatile matter will have Very little ash content High fusion point of its ash Low ignition temperature Low adiabatic flame temperature Very little ash content High fusion point of its ash Low ignition temperature Low adiabatic flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Nitrogen present in the flue gas is determined in the orsat apparatus by absorbing it in None of these Ammoniacal cuprous chloride Pyrogallol solution KOH None of these Ammoniacal cuprous chloride Pyrogallol solution KOH ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good metallurgical coke should have very low Sulphur & phosphorous content Porosity Fusion point of its ash Hardness & strength Sulphur & phosphorous content Porosity Fusion point of its ash Hardness & strength ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Stack heat losses can be minimised by Controlling the excess air Maintaining proper draft in the furnace Using low c.v. fuels Oxygen enrichment of combustion air Controlling the excess air Maintaining proper draft in the furnace Using low c.v. fuels Oxygen enrichment of combustion air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Efficient burning of anthracite coal requires Fine grinding High excess air All of these Low preheat of air Fine grinding High excess air All of these Low preheat of air ANSWER DOWNLOAD EXAMIANS APP
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