Which form of silica has the highest specific gravity ?

Related Mcqs:

Fusion point of an acidic refractory material is________________?

A. Increased by the addition of basic oxides B. Reduced by the addition of basic oxides C. Not affected by the addition of basic oxides D. Always more than 2500°C...

With increase in the density of silica refractories, its_______________?

A. Resistance to slag attack increases B. Spalling resistance reduces C. Both A. and B. D. Neither A. nor B....

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

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

Spalling tendency of refractories is reduced by increasing its_________________?

A. Porosity B. Specific gravity C. Thermal conductivity D. Strength...

Which is not a natural insulating material ?

A. Diatomaceous earth/kieselgur B. Asbestos C. Vermiculite D. None of these...