Fuels and Combustion Very __________ coals are completely devoid of cokability i.e, it is non coking. Young Neither A nor B Both A & B Mature Young Neither A nor B Both A & B Mature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gross and net calorific value of a fuel will be the same If its hydrogen/hydrogen compound content is zero Under no circumstances Ifits carbon content is very low If its ash content is zero If its hydrogen/hydrogen compound content is zero Under no circumstances Ifits carbon content is very low If its ash content is zero ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal with high ash content Has low quantity of mineral matter Is harder and stronger Is not subjected to washing Has higher calorific value Has low quantity of mineral matter Is harder and stronger Is not subjected to washing Has higher calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C. 100 to 150 350 to 450 550 to 650 700 to 850 100 to 150 350 to 450 550 to 650 700 to 850 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas is a better fuel than blast furnace gas, because of its higher Adiabatic flame temperature Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) Heat release rate (thus requiring smaller combustion chamber) All of these Adiabatic flame temperature Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) Heat release rate (thus requiring smaller combustion chamber) All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Mineral matter content (M) and ash content (A) in coal are approximately related as M = 1.1A M = A M = 1.5A M = 2A M = 1.1A M = A M = 1.5A M = 2A ANSWER DOWNLOAD EXAMIANS APP
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