Which of the following is not an acidic refractory?

Related Mcqs:

Si percentage in silica refractories used in the walls of coke oven is about______________________?

A. 45 B. 60 C. 80 D. 95...

Silica refractories__________________?

A. crack when subjected to sudden change of temperature B. Cannot be used in the dome of hot blast stoves C. Have lower thermal conductivity than fireclay bricks D. All A., B. and C....

Which refractory must have controlled atmosphere (temperature and humidity) for its safe storage ?

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

Chromite refractories are used in_______________?

A. Bottom of soaking pits B. Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other C. Both A. & B. D. Neither A. and B....

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...