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.

A. Acidic in nature B. Neutral in nature C. Having higher RUL than silica bricks D. Made by mixing 30% Chromite and 70% Periclase...

A. Thermal insulation B. Transformers C. Magnetic switches D. Television sets...

A. Increases B. Decreases C. Remain same D. May increase or decrease...

A. Mullite B. Corundum C. Bauxite D. Dolomite...

A. Cupola B. Gas producer C. Bottom of hot metal mixer D. Roof of open hearth furnace...

Search