Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material ?

Related Mcqs:

Porosity is induced in insulating refractories by adding________________?

A. Powdered naphthalene B. Ammonium chloride/sulphate C. Calcium phosphate D. All A., B. and 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....

Panel test determines the _____________ of refractories?

A. Fusion point B. Spalling resistance C. Slag penetration resistance D. Refractoriness under load (RUL)...

Hot face insulating linings of high purity alumina fused mullite are used, where_________________?

A. Very high temperatures are involved B. Highly reducing conditions are involved C. Presence of iron or silica is harmful D. All A., B. and C....

Skull is not formed on the carbon blocks in the hearth of a blast furnace, when it becomes cold, because of its_______________?

A. Non-wetting characteristic B. High thermal conductivity C. High crushing strength D. None of these...