Fuels and Combustion Gray King Assay and Swelling Index of a coal is a measure of its Swelling characteristics Abradability Agglutinating properties Resistance to impact breakage Swelling characteristics Abradability Agglutinating properties Resistance to impact breakage ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion Increases Decreases Remains same Either A or B, depends on other factors Increases Decreases Remains same Either A or B, depends on other factors ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In low temperature carbonisation (as compared to high temperature carbonisation) of coal Free carbon in tar is more Aliphatic tar is produced Ammonia yield is more All of these Free carbon in tar is more Aliphatic tar is produced Ammonia yield is more All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not applicable to fluidised bed combustion of coal? It can not burn low grade coal It achieves higher fuel combustion efficiency Less heat transfer surface area is required in boilers None of these It can not burn low grade coal It achieves higher fuel combustion efficiency Less heat transfer surface area is required in boilers None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in calorific value of fuels, their adiabatic flame temperatures 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 Decrease Remain unchanged Increase ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the least calorific value (kcal/Nm³) ? Sewage gas Natural gas Blast furnace gas Coke oven gas Sewage gas Natural gas Blast furnace gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
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