Fuels and Combustion Softening temperature of coal ash is a measure of the __________ of coal. Coking tendency Size stability Clinkering tendency Caking tendency Coking tendency Size stability Clinkering tendency Caking tendency ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following constituents of coal is the most important in the production of coke? Carbon Moisture Volatiles Ash Carbon Moisture Volatiles Ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Stoichiometric combustion of 12 kg of carbon requires __________ of oxygen. 22.4 Nm³ 1kg mole 32 kg All of these 22.4 Nm³ 1kg mole 32 kg All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Dust content in raw blast furnace gas is about __________ gm/Nm³ , hence it is cleaned to the dust level of about < 10 mg /Nm³ before use. 150-200 43832 70-100 15-30 150-200 43832 70-100 15-30 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High sulphur content in a fuel __________ of the flue gases. Reduces the combustion efficiency by limiting the permissible temperature reduction Increases the dew point Decreases the dew point Both B & C Reduces the combustion efficiency by limiting the permissible temperature reduction Increases the dew point Decreases the dew point Both B & C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of coal charge for the coke ovens reduces the Yield of gas and tar Time of carbonisation All of these Fuel consumption in coking Yield of gas and tar Time of carbonisation All of these Fuel consumption in coking ANSWER DOWNLOAD EXAMIANS APP
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