Periclase refractory contains mainly________________?

Related Mcqs:

Lower part of hot metal mixer are lined with _____________ bricks?

A. Superduty fireclay B. High alumina C. Silica D. Carborundum...

Chromite refractories_____________________?

A. Are bonded with lime and clay B. (Free from silica) have better thermal fatigue resistance than silica and magnesite refractories. C. Are resistant to basic slag D. All A., B. and C....

Quartz is___________________?

A. Stable form of silica upto 870°C B. Converted to Tridymite on firing between 870 to 1470°C C. Transformed to Cristobalite on heating above 1470°C D. All A., B. and C....

10 to 30% magnesite is added to Chromite to produce chrome-magnesite refractories. Magnesite addition is mainly done to improve the _____________ of Chromite?

A. Spalling resistance B. Refractoriness C. Crushing strength D. Resistance to slag...

Silica bricks are never used for lining the____________________?

A. Beehive coke ovens B. By-product coke ovens C. Dome of blast furnace stoves D. Roof of open hearth furnace...