The function of an economiser in a boiler is to preheat the _____________________?

Related Mcqs:

In salt bath furnace, heat is transferred to the charge mainly by __________________?

A. Conduction B. Convection C. Radiation D. None of these...

In producer gas making furnace, steam is added along with air to mainly control the____________________?

A. Fusion of coal ash & clinker formation B. C. V. of producer gas C. Temperature of producer gas D. Tar content in producer gas...

The reason for excessive clinker formation in gas producers is the_____________________?

A. Use of coal/coke containing a high % of fines and ash B. Use of fuel having too low an ash fusion temperature C. Development of hot spots in the fuel bed and an abnormally high rate of gasification D. All A., 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...

______________ is an indirectly heated furnace?

A. Open hearth furnace B. Muffle furnace C. Soaking pit D. Reheating furnace...