Rotary kilns meant for calcination of limestone are lined with chrome magnesite in ______________ zone?

Related Mcqs:

Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about ______________ percent?

A. 5 B. 20 C. 35 D. 55...

Graphite or carbon refractories______________________?

A. Exhibit wetting characteristics B. Should be used in neutral or reducing atmosphere C. Exhibit high shrinkage on thermal treatment D. Are not resistant to corrosion by slag...

_____________ is not a single oxide-refractory?

A. Zirconia B. Silicon carbide C. Magnesia 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....

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

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