Which of the following is not a high alumina refractory material ?

Related Mcqs:

The linear thermal expansion of _______________ bricks upto 1000 °C is very low of the order of ≤ 0.5 percent?

A. Fireclay B. Silica C. Magnesite D. Corundum...

Machine moulding of dry mixture of refractories requires a pressure of the order of _____________ kg/cm2?

A. 10 B. 100 C. 500 D. 1000...

SiO2 percentage in firebrick is about____________________?

A. 35-40 B. 55-60 C. 80-85 D. > 94...

Maximum apparent porosity of magnesite bricks is about _____________ percent?

A. 8 B. 24 C. 44 D. 58...

Walls, roofs & combustion chambers of annealing furnaces are made of ______________ bricks?

A. High duty fireclay B. Silica C. Mullite D. Carborundum...