Fuels and Combustion Volatile matter content of metallurgical coke may be around __________ percent. 10-15 1-2 22-26 30-33 10-15 1-2 22-26 30-33 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air. 5 20 10 35 5 20 10 35 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? 70 100 85 50 70 100 85 50 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coals used for the generation of producer gas should have High volatile matter content Very low ash content (8-10%) Low fusion point of ash High caking index High volatile matter content Very low ash content (8-10%) Low fusion point of ash High caking index ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good metallurgical coke Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should have low fusion point of its ash Should have high porosity Should be brittle Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should have low fusion point of its ash Should have high porosity Should be brittle ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The weathering index of a coal Is related to its calorific value Gives an idea of the fusion temperature of ash Is a measure of its caking tendency Is a measure of its size stability, when stored & exposed to weather Is related to its calorific value Gives an idea of the fusion temperature of ash Is a measure of its caking tendency Is a measure of its size stability, when stored & exposed to weather ANSWER DOWNLOAD EXAMIANS APP
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