Fuels and Combustion Stack heat losses can be minimised by Maintaining proper draft in the furnace Oxygen enrichment of combustion air Using low c.v. fuels Controlling the excess air Maintaining proper draft in the furnace Oxygen enrichment of combustion air Using low c.v. fuels Controlling the excess air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal tar (produced by high temperature carbonisation) is the main source of Paraffins Aromatic compounds Alphatic compounds Olefins Paraffins Aromatic compounds Alphatic compounds Olefins ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of preheated air for combustion of fuel in the furnace, increases the None of these Flame temperature Scale losses of the furnace stock Calorific value of the fuel None of these Flame temperature Scale losses of the furnace stock Calorific value of the fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is unsuitable fuel for producer gas manufacture? Anthracite Coal having high fusion point of its ash Coal having low fusion point of its ash Coke Anthracite Coal having high fusion point of its ash Coal having low fusion point of its ash Coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal is done to reduce the Inherent impurities Both B and C Mineral matter Adhering impurities Inherent impurities Both B and C Mineral matter Adhering impurities ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in calorific value of fuels, their adiabatic flame temperatures Decrease Remain unchanged Increase May increase or decrease ; depends on the quantity of products of combustion Decrease Remain unchanged Increase May increase or decrease ; depends on the quantity of products of combustion ANSWER DOWNLOAD EXAMIANS APP
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