_____________ atmosphere is maintained inside an iron blast furnace?

Related Mcqs:

The thermal efficiency of an air/fuel gas preheating recuperator may be as high as _____________ percent?

A. 50 B. 65 C. 85 D. 99...

Regenerators are installed in_______________?

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

Amount of coal lost in ash particle, which is carried through the boiler system, depends upon the__________________?

A. Physical nature, ash content and fineness of the coal B. Amount of excess air supplied and load on the boiler C. Type of burner and combustion chamber D. All A., B. and C....

Heat transfer rate to the stock/charge in the furnace does not depend upon the________________?

A. Emissivity of the refractory walls B. Size of the furnace C. Use of waste heat recovery equipments D. Thickness of the stock...

The advantages of firing pulverised coal in the furnace lies in the fact that, it_____________________?

A. Permits the use of high ash content coal B. Permits the use of low fusion point ash coal C. Accelerates the burning rate and economises on fuel consumption D. All A., B. and C....