Fuels and Combustion

A. Pulverised coal
B. Gaseous fuels
C. Fuel oil
D. None of these

A. Lignite
B. Bituminous coal
C. Anthracite coal
D. None of these

A. 80-170
B. 200-300
C. 250-270
D. 280-300

A. B.F. gas and coke oven gas
B. Coke oven gas and converter gas
C. Coke oven gas and L.P.G
D. Blast furnace gas and naphtha vapor

A. Increase the adiabatic flame temperature
B. Increase the calorific value of the fuel
C. Complete the combustion of fuel
D. Reduce its requirement for effecting the complete combustion

A. 100 to 150
B. 350 to 450
C. 550 to 650
D. 700 to 850

A. Ash
B. Inherent mineral matter
C. Free impurities
D. Volatile matter

A. Produce smaller coke
B. Produce stronger coke
C. Require less time of carbonisation
D. All A., B. and C.

A. GCV at constant pressure
B. GCV at constant volume
C. NCV at constant pressure
D. NCV at constant volume

A. Combustion
B. Nuclear fission
C. Nuclear fusion
D. All A., B. & C.