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

Related Mcqs:

Roof of a basic open hearth furnace is lined with ______________ bricks?

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

Maximum apparent porosity of magnesite bricks is about _____________ percent?

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

Which brick undergoes maximum shrinkage on drying ?

A. Tar bonded dolomite bricks B. Fireclay bricks C. Magnesite bricks D. Chromite bricks...

Refractoriness under loads (RUL) is quite close to the fusion temperature (PCE) for _____________ bricks?

A. Fireclay B. Silica C. Dolomite D. Very low alumina...

Pick out the wrong statement ?

A. Refractories used in muffle furnace should have low thermal conductivity B. The electrical resistivity of refractories drops rapidly with rise in temperature C. For reducing spalling tendency, the refractory should be well fired and its porosity should be more D. Refractoriness under load (RUL) of a refractory is always less than its refractoriness...