Which one contains maximum percentage of Al2O3 ?

Related Mcqs:

Carbon refractories have very high __________________?

A. Wetting characteristics B. Refractoriness C. Thermal conductivity D. Both B. and C....

Grog__________________?

A. Contains both alumina and silica B. Is crushed firebrick C. Is a non-plastic material D. All A., B. and C....

The main raw material for manufacture of silicon carbide refractories is_________________?

A. Corundum B. Carborundum C. Bauxite D. Periclase...

Pyrometric cone equivalent (PCE) of a refractory is the measure of its_________________?

A. Spalling resistance B. Fusion point C. Resistance to slag penetration D. Resistance to carbon monoxide attack...

Refractories subjected to alternate cycles of heating & cooling are liable to loose their resistance to__________________?

A. Thermal spalling B. Slag attack C. Fusion under load D. CO attack...