Fuels and Combustion Softening temperature of coal ash is a measure of the __________ of coal. Coking tendency Size stability Caking tendency Clinkering tendency Coking tendency Size stability Caking tendency Clinkering tendency ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Moisture loss is determined by the Both A and B Moisture content of fuel The water formed by combustion reaction Humidity of combustion air Both A and B Moisture content of fuel The water formed by combustion reaction Humidity of combustion air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Hardgrove grindability index of four coal samples are given below. Which of them is the easiest to grind? 85 70 50 100 85 70 50 100 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In low temperature carbonisation (as compared to high temperature carbonisation) of coal All of these Ammonia yield is more Free carbon in tar is more Aliphatic tar is produced All of these Ammonia yield is more Free carbon in tar is more Aliphatic tar is produced ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Froth floatation is used for Washing lump coal (> 80 mm size) All of these Washing fine coal dust (< 0.5 mm size) Removing ash from the coal based on difference in specific gravity of coal and ash Washing lump coal (> 80 mm size) All of these Washing fine coal dust (< 0.5 mm size) Removing ash from the coal based on difference in specific gravity of coal and ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of gobar gas (containing CH₄ = 60% , H₂ = 10% ; CO₂ = 30%) may be about __________ Kcal/Nm³. 5400 1800 10200 3200 5400 1800 10200 3200 ANSWER DOWNLOAD EXAMIANS APP
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