Fuels and Combustion Which of the following can be made into briquettes without the use of a binder? Bituminous coal Lignite None of these Anthracite coal Bituminous coal Lignite None of these Anthracite coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in moisture content of coal, its Clinkering tendency during combustion increases Bulk density always decreases Calorific value increases sometimes None of these Clinkering tendency during combustion increases Bulk density always decreases Calorific value increases sometimes None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C. 550 to 650 700 to 850 100 to 150 350 to 450 550 to 650 700 to 850 100 to 150 350 to 450 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion __________ prohibits the use of alcohols directly in petrol engines. Low calorific value Low flash point Low octane number High cost & availability Low calorific value Low flash point Low octane number High cost & availability ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The heat of combustion of a fuel Is always negative Is equal to the heat of formation Is always positive Can't be known without calculating it Is always negative Is equal to the heat of formation Is always positive Can't be known without calculating it ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High sulphur content in a fuel __________ of the flue gases. Both B & C Increases the dew point Reduces the combustion efficiency by limiting the permissible temperature reduction Decreases the dew point Both B & C Increases the dew point Reduces the combustion efficiency by limiting the permissible temperature reduction Decreases the dew point ANSWER DOWNLOAD EXAMIANS APP
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