______________ bricks are used in the burning zone of a cement rotary kiln ?

Related Mcqs:

Magnesite chrome bricks are used in the___________________?

A. Roof lining of basic open hearth & other basic furnaces B. Reheating furnaces C. Soaking pits D. All A., B. and C....

Refractoriness of a typical silica brick corresponds to Segar cone number, ’32’, which is equivalent to a temperature of _____________ °C?

A. 1380 B. 1520 C. 1710 D. 1915...

Outer combustion chamber of blast furnace stove is lined with _____________ bricks?

A. Fireclay B. Silica C. Chrome magnesite D. Zirconia...

Pick out the wrong statement?

A. Sand & coke is the main raw material for the manufacture of silicon carbide B. Carbon refractories cannot be used in the furnaces operating under reducing conditions C. Mullite can be obtained by the heating of alusite, kyanite or sillimanite D. Silica occurs in nature in all cellular, amorphous or crystalline form...

Crushing strength of a refractory____________________?

A. Increases with rise in service temperature B. Decreases with rise in service temperature C. Is unaffected with change in service temperature D. Decreases with increase in porosity...