Category: Fuels and Combustion

A. Metallurgical coke
B. Soft coke
C. Very low calorific value coke oven gas
D. No by-products

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

A. Nitrogen
B. Air
C. Phenolic water
D. Carbon dioxide

A. Pulverised fuel can be completely burnt with less percentage of excess air compared to lump
coal
B. Low grade coal can be used, but generally high volatile matter coals are more suitable for
making pulverised fuel
C. Regulation of furnace temperature and atmosphere (oxidising or reducing) is easily possible
with pulverised fuel firing
D. None of these

A. Pitch and creosote oil
B. Light oil and pitch
C. Anthracene and crecosote oil
D. Solar oil and pitch

A. Higher methane content and thus higher calorific value
B. Higher carbon monoxide content
C. Lower carbon dioxide content
D. None of these

A. 1 to 2
B. 3 to 4
C. 5 to 15
D. 20 to 40

A. Pitch
B. Fuel oil
C. Blast furnace gas
D. Bituminous coal

A. Produced by low temperature carbonisation of coal
B. A domestic fuel
C. Used in blast furnaces
D. None of these

A. It cannot burn low grade coal
B. It achieves higher fuel combustion efficiency
C. Less heat transfer surface area is required in boilers
D. None of these