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

Related Mcqs:

Grog addition in fireclay during brick manufacture is done to_________________?

A. Reduce its shrinkage on heating B. Impart greater spalling resistance C. Enhance the strength of fired refractories D. All A., B. and C....

Electrical resistor bars are made of _______________?

A. Silicon carbide B. Alumina C. Zirconia D. Graphite...

High refractoriness of refractory bricks means, that it has a________________?

A. High spalling resistance B. Low spalling resistance C. High resistance to fusion D. Low porosity...

Cold crushing strength of ordinary fireclay brick is about 950 kg/cm2. On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as ______________ kg/cm2?

A. 450 B. 250 C. 150 D. 65...

Which is an acidic refractory ?

A. Magnesite B. Dolomite C. Fireclay D. Chrome magnesite...