Fuels and Combustion Fussain All of these Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation Is friable, charcoal like substance All of these Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation Is friable, charcoal like substance ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The weathering index of a coal Gives an idea of the fusion temperature of ash Is a measure of its size stability, when stored & exposed to weather Is related to its calorific value Is a measure of its caking tendency Gives an idea of the fusion temperature of ash Is a measure of its size stability, when stored & exposed to weather Is related to its calorific value Is a measure of its caking tendency 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. Unsaturated hydrocarbons Methane All of these Hydrogen Unsaturated hydrocarbons Methane All of these Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest calorific value (kcal/Nm³) ? LPG Gobar gas Natural gas Carburetted water gas LPG Gobar gas Natural gas Carburetted water gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Too much of excess air in combustion results in high Fuel consumption for the same heat load Stack gas temperature Percentage of oxygen in flue gases All of these Fuel consumption for the same heat load Stack gas temperature Percentage of oxygen in flue gases All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The calorific value is the highest out of the following for Blast furnace gas Producer gas Coke oven gas Water gas Blast furnace gas Producer gas Coke oven gas Water gas ANSWER DOWNLOAD EXAMIANS APP
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