In Case Of Pulverised Coal Fired Steam Boiler, The Secondary Air Serves The Main Purpose Of________________

A. Transportation of coal
B. Drying of coal
C. Combustion of coal by supplying it around the burner
D. Preheating the primary air

A. To increase heat transfer by convection B. To ensure uniform temperature C. In furnaces, operating below 750°C D. All A., B. and C....

A. Horizontal B. Vertical C. Tangential D. All A., B. and C....

A. Coke ovens B. Open hearth furnace C. Both A. & B. D. Neither A. nor B....

A. Preheating the combustion air B. Oxygen enrichment of combustion air C. Preheating the fuel gas D. All A., B. & C....

A. Sankey diagram B. Cox chart C. Ostwald chart D. None of these...

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