Fuels and Combustion Which is the most matured coal? Semi-anthracite Bituminous Lignite Anthracite Semi-anthracite Bituminous Lignite Anthracite 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. Hydrogen All of these Unsaturated hydrocarbons Methane Hydrogen All of these Unsaturated hydrocarbons Methane ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion When steam is passed over coal resulting in the endothermic reaction represent by, C + H₂O = CO + H₂, it is called the __________ of coal. Gasification Oxidation Carbonisation Coalification Gasification Oxidation Carbonisation Coalification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Benzene is used As an explosive For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) As a motor fuel As a perfume As an explosive For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) As a motor fuel As a perfume ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of preheated air for combustion of fuel in the furnace, increases the None of these Calorific value of the fuel Flame temperature Scale losses of the furnace stock None of these Calorific value of the fuel Flame temperature Scale losses of the furnace stock ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg. 4000 8000 6000 1000 4000 8000 6000 1000 ANSWER DOWNLOAD EXAMIANS APP
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