Fuels and Combustion The fuel ratio of a coal is The ratio of its percentage of fixed carbon to that of volatile matter Neither A nor B Helpful in estimation of its rank Both A and B The ratio of its percentage of fixed carbon to that of volatile matter Neither A nor B Helpful in estimation of its rank Both A and B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal. Fast & slow Fast & high Slow & low Slow & high Fast & slow Fast & high Slow & low Slow & high ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Incomplete combustion of a fuel is characterised by the high __________ in the flue gas. Smoke Temperature Carbon monoxide Oxygen Smoke Temperature Carbon monoxide Oxygen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Softening temperature of coal ash is a measure of the __________ of coal. Size stability Coking tendency Clinkering tendency Caking tendency Size stability Coking tendency Clinkering tendency Caking tendency ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of preheated air for combustion of fuel in the furnace, increases the Calorific value of the fuel Scale losses of the furnace stock None of these Flame temperature Calorific value of the fuel Scale losses of the furnace stock None of these Flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke having higher porosity has Higher reactivity Lower bulk density All of these Lower strength Higher reactivity Lower bulk density All of these Lower strength ANSWER DOWNLOAD EXAMIANS APP
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