Fuels and Combustion As time passes, the calorific value of stored coal Decreases Increases Remains unaltered May increase or decrease (depends on the method of storage) Decreases Increases Remains unaltered May increase or decrease (depends on the method of storage) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as M = 1.1 A M = 0.5 A M = A M = 1.8 A M = 1.1 A M = 0.5 A M = A M = 1.8 A ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Oxygen content in a flue gas was found to be 4%. It implies that excess air used for combustion was around __________ percent. 4 20 40 96 4 20 40 96 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of combustion air is done to Increase the adiabatic flame temperature Increase the calorific value of the fuel Complete the combustion of fuel Reduce its requirement for effecting the complete combustion Increase the adiabatic flame temperature Increase the calorific value of the fuel Complete the combustion of fuel Reduce its requirement for effecting the complete combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Junker's calorimeter is used to determine the calorific value of Fuel oil Pulverised coal None of these Gaseous fuels Fuel oil Pulverised coal None of these Gaseous fuels ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke Decreases the hardness of coke None of these Causes brittleness in steel Decreases the abrasion resistance of coke Decreases the hardness of coke None of these Causes brittleness in steel Decreases the abrasion resistance of coke ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS