Fuels and Combustion

A. Burns completely
B. Gives smokeless burning
C. Shows little or no fusing action
D. None of these

A. Carbon, hydrogen, nitrogen & sulphur
B. Carbon, ash, sulphur & nitrogen
C. Carbon, sulphur, volatile matter & ash
D. Carbon, volatile matter, ash & moisture

A. Proper fuel preparation
B. Keeping the flue gas exhaust temperature very high
C. Adopting efficient-fuel firing technique & equipment
D. Supplying correct quantity of combustion air

A. Incomplete combustion
B. Dry gas/stack gas loss
C. Moisture loss
D. None of these

A. Incomplete combustion
B. Complete combustion
C. High oxygen in flue gas
D. None of these

A. Fischer-Tropsch
B. Bergius
C. Lurgi
D. None of these

A. 11.5
B. 0.5
C. 23
D. 12

A. CO2
B. CO
C. O2
D. C

A. As moisture proof coating on fibres
B. As moth balls (insecticides)
C. As a fuel in furnaces
D. For making electrodes

A. Coal can be pulverised with great difficulty
B. Coal can’t be pulverised
C. Coal can be easily pulverised
D. Power consumption in grinding the coal will be very high