Fuels and Combustion Overfire burning in a furnace is a phenomenon characterised by the None of these Supply of excess fuel Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air Supply of excess air None of these Supply of excess fuel Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air Supply of excess air 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 Flame temperature Scale losses of the furnace stock None of these Calorific value of the fuel Flame temperature Scale losses of the furnace stock None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The most matured coal out of the following is Bituminous Lignite Sub-bituminous Semi-anthracite Bituminous Lignite Sub-bituminous Semi-anthracite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal does not reduce its Fusion point of ash S & P content Heating value None of these Fusion point of ash S & P content Heating value None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Benzol is used Neither A nor B As a motor fuel blend Both A & B For producing benzene, tolune & xylene by its distillation Neither A nor B As a motor fuel blend Both A & B For producing benzene, tolune & xylene by its distillation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During the carbonisation of coal Hard semi-coke starts shrinking at 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C All of these All tar is evolved at < 600°C Hard semi-coke starts shrinking at 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C All of these All tar is evolved at < 600°C ANSWER DOWNLOAD EXAMIANS APP
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