With increasing alumina content, the fusion point of high alumina refractories__________________?

Related Mcqs:

Spalling of a refractory means its____________________?

A. Softening B. Fracture due to uneven expansion at high temperature C. Resistance to compressive loads D. Resistance to chemical action of gases and molten fluxes...

Which one expands on heating ?

A. Silica bricks B. Fireclay bricks C. Both A. & B. D. Neither A. nor B....

An indication of degree of firing in silica brick is its____________________?

A. Specific gravity B. Fusion point C. RUL D. None of these...

Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the_________________?

A. Washing action of metal B. Corrosion by layer of slag C. Both A. & B. D. Neither A. nor B....

. Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm2) is ______________ °C?

A. 500 B. 1000 C. >1350 D. >2000...