Forced recirculation of furnace gases is practised_______________?

Related Mcqs:

Which of the following is a batch furnace ?

A. Cupola B. Reheating furnace C. Glass tank furnace D. None of these...

Shaft furnaces are used for_______________________?

A. Smelting B. Calcining C. Roasting D. All A., B. and C....

Coke ovens in steel plant are heated by____________________?

A. Electricity B. Blast furnace gas/mixed gas C. Coke oven gas D. Both B. and C....

Fuel used in B.F. stove is______________________?

A. Pulverised coal B. Furnace oil C. Blast furnace gas/mixed gas D. Coke oven gas...

Fuel economy in furnaces can be achieved by_________________?

A. Using oxygen enriched combustion air B. Preheating the combustion air C. Reducing the heat loss through furnace openings & doors D. All A., B. and C....