Mullite is chemically represented by_________________?

Related Mcqs:

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

A. Aluminium phosphate B. Water C. Lime D. Plaster of Paris...

Thermal spalling mainly occurs during _____________ of furnaces?

A. Cooling down B. Warming up C. Both A. & B. D. Neither A. nor B....

Which is not an alumino-silicate refractory ?

A. Fireclay bricks B. Mullite bricks C. Tar dolomite bricks D. High alumina bricks...

Which of the following bricks should not be used, if the furnace is to be used intermittently ?

A. Firebricks B. Silica bricks C. Silicon carbide bricks D. Sillimanite...

High alumina refractory compared to fireclay bricks have____________________?

A. Less load bearing capacity B. Less resistance to slag attack C. Low refractoriness D. High resistance to thermal shock and creep...