Fuels and Combustion Which of the following gaseous fuels is likely to have the highest gross calorific value? Sewage gas LPG Producer gas Natural gas Sewage gas LPG Producer gas Natural gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good metallurgical coke 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 Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should have low fusion point of its ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gray-King Assay and Roga Index of coal is a measure of its Weathering properties Caking and swelling properties Grindability Abradability Weathering properties Caking and swelling properties Grindability Abradability ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In low temperature carbonisation (as compared to high temperature carbonisation) of coal Aliphatic tar is produced All of these Free carbon in tar is more Ammonia yield is more Aliphatic tar is produced All of these Free carbon in tar is more Ammonia yield is more ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion When steam is passed over coal resulting in the endothermic reaction represent by, C + H₂O = CO + H₂, it is called the __________ of coal. Carbonisation Gasification Oxidation Coalification Carbonisation Gasification Oxidation Coalification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High amount of sulphur and phosphorous in coke causes Decrease in its calorific value Brittleness of steel made by using it None of these Increase in its strength Decrease in its calorific value Brittleness of steel made by using it None of these Increase in its strength ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS