Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke Decreases the hardness of coke Decreases the abrasion resistance of coke None of these Causes brittleness in steel Decreases the hardness of coke Decreases the abrasion resistance of coke None of these Causes brittleness in steel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of excess of combustion air in the combustion of fuels results in Condensation of water vapour from the fuel gas Long flame Heat losses None of these Condensation of water vapour from the fuel gas Long flame Heat losses None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A fuel with high heat release rate will None of these Have high calorific value Require smaller combustion chamber Have high adiabatic flame temperature None of these Have high calorific value Require smaller combustion chamber Have high adiabatic flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in C/H ratio of a fuel, the dew point of flue gases Decreases Increases Remains same May increase or decrease ; depends on the type of fuel Decreases Increases Remains same May increase or decrease ; depends on the type of fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following gaseous fuels has the highest net calorific value (kcal/Nm³)? Producer gas Liquified petroleum gas Carburetted water gas Natural gas Producer gas Liquified petroleum gas Carburetted water gas Natural gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature is attained, when the fuel is burnt with More than theoretically required amount of air Theoretically required amount of air Theoretically required amount of oxygen Less than theoretically required amount of air More than theoretically required amount of air Theoretically required amount of air Theoretically required amount of oxygen Less than theoretically required amount of air ANSWER DOWNLOAD EXAMIANS APP
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