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.Management Sciences
A. Washing fine coal dust (< 0.5 mm size)
B. Washing lump coal (> 80 mm size)
C. Removing ash from the coal based on difference in specific gravity of coal and ash
D. All A., B. and C.
Related Mcqs:
- Which of the following would require least amount of secondary air for combustion ?
- A. Coke breeze containing 25% ash and 2% volatile matter B. Anthracite containing 10% volatile matter and 8% ash C. Bituminous coal containing 20% ash and 25% volatile matter D. Semi-bituminous coal containing 25% ash and 20% volatile matter...
- Catalyst used in Fischer-Tropsch process is_______________?
- A. Nickel B. Zinc oxide C. Alumina D. Thorium oxide...
- The maximum adiabatic flame temperature is attained, when the fuel is burnt with ______________________?
- A. Theoretically required amount of air B. More than theoretically required amount of air C. Less than theoretically required amount of air D. Theoretically required amount of oxygen...
- The gasification reaction represented by, C + H2O = CO + H2, is__________________?
- A. Exothermic B. Endothermic C. Catalytic D. Autocatalytic...
- Calorific value of wood gas is about ______________ kcal/Nm3?
- A. 1500 B. 3300 C. 5400 D. 8500...
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