Fuels and Combustion Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis. 750 500 950 1100 750 500 950 1100 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Caking index of coal blend used for blast furnace coke making is about 8 22 36 12 8 22 36 12 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of __________ in a dry gaseous fuel does not contribute to its calorific value. Oxygen Hydrogen Carbon Sulphur Oxygen Hydrogen Carbon Sulphur ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In low temperature carbonisation of coal as compared to high temperature carbonisation __________ produced is less. Yield percentage of coke Yield of ammonia present in coke oven gas Free carbon content in tar Difference in gross & net calorific value of the coke oven gas Yield percentage of coke Yield of ammonia present in coke oven gas Free carbon content in tar Difference in gross & net calorific value of the coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen. Not related to Same as Higher than Lower than Not related to Same as Higher than Lower than ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke Causes brittleness in steel None of these Decreases the abrasion resistance of coke Decreases the hardness of coke Causes brittleness in steel None of these Decreases the abrasion resistance of coke Decreases the hardness of coke ANSWER DOWNLOAD EXAMIANS APP