Fuels and Combustion To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in Fine sizes without the presence of any lump Closed space without any ventilation facility Large heaps with small surface to volume ratio Shallow and small piles Fine sizes without the presence of any lump Closed space without any ventilation facility Large heaps with small surface to volume ratio Shallow and small piles ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increases in carbonisation temperature Methane percentage in the coke oven gas increases Coke even gas yield increases Hydrogen percentage in the coke oven gas decreases Tar yield increases Methane percentage in the coke oven gas increases Coke even gas yield increases Hydrogen percentage in the coke oven gas decreases Tar yield increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fuel gases has the highest calorific value ? Coal bed methane (CBM) Natural gas Sewage gas Liquefied petroleum gas (LPG) Coal bed methane (CBM) Natural gas Sewage gas Liquefied petroleum gas (LPG) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following will generate maximum volume of product of complete combustion (Nm³/Nm³ of fuel) ? Carburetted water gas Natural gas Blast furnace gas Producers Carburetted water gas Natural gas Blast furnace gas Producers ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pulverised coal used in boiler firing need not have Lower ash content High bulk density Less moisture content High fusion point of its ash Lower ash content High bulk density Less moisture content High fusion point of its ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal that softens and fuses on heating is Caking Non-caking Carbonised Classified Caking Non-caking Carbonised Classified ANSWER DOWNLOAD EXAMIANS APP
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