Fuels and Combustion Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature? Calorific value of the fuel Heat transfer rate to the stock in the furnace Flame temperature achieved Speed of combustion of fuel Calorific value of the fuel Heat transfer rate to the stock in the furnace Flame temperature achieved Speed of combustion of fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During coking of coal, the ash content (percentage) Decreases None of these Remains constant Increases Decreases None of these Remains constant Increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion KOH solution used in orsat apparatus absorbs Both A & B CO₂ Neither A nor B SO₂ Both A & B CO₂ Neither A nor B SO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Efficient burning of anthracite coal requires Fine grinding High excess air Low preheat of air All of these Fine grinding High excess air Low preheat of air All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is used for making the explosive 'TNT'? Cerosote Benzol Toluene Pyridine Cerosote Benzol Toluene Pyridine ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases. All of these Methane Hydrogen Unsaturated hydrocarbons All of these Methane Hydrogen Unsaturated hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
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