With increase in the density of silica refractories, its_______________?

Related Mcqs:

Zirconia refractory_________________?

A. Does not react with basic slags B. Is produced from baddeleyite C. Cannot be used as an insulator D. Has poor electrical conductivity at high temperature...

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

A. Preheating B. Cooling C. Burning D. All the above...

With increase in the porosity, thermal spalling resistance of fireclay brick___________________?

A. Increases B. Decreases C. Remain same D. May increase or decrease...

Spalling resistance of a refractory cannot be increased by ____________________?

A. Increasing its porosity B. Using a coarser grog during its manufacture C. Decreasing its thermal co-efficient of expansion D. Making it denser...

Pyrometric cone equivalent (PCE) of a refractory is the measure of its_________________?

A. Spalling resistance B. Fusion point C. Resistance to slag penetration D. Resistance to carbon monoxide attack...