‘Spinel’, a refractory mineral is chemically represented as____________________?

Related Mcqs:

Which of the following consumes the maximum tonnage of refractories annually in an integrated steel plant ?

A. Soaking pits B. Reheating furnace C. L.D. converter D. Rotary lime kiln...

Which one contains maximum percentage of Al2O3 ?

A. Firebrick B. Sillimanite C. Magnesite D. Aluminous firebrick...

Which is the stable form of silica below 870°C ?

A. Tridymite B. Cristobalite C. Quartz D. None of these...

Faster rate of drying of moulded refractories results in high _____________ of refractories?

A. Green strength B. Voids C. Shrinkage D. Both B. and C....

Refractoriness under load (RUL) is the most important property for the refractory bricks_________________?

A. At the hearth bottom of the furnace on which stock is placed B. Used for furnace insulation C. Used in the roof of the furnace D. None of these...