Silica refractories__________________?

Related Mcqs:

Segar cones are used for the determination of ____________ of refractories?

A. Softening temperature B. Spalling resistance C. Electrical conductivity D. Resistance to slag attack...

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....

Refractories are dried in the _______________?

A. Rotary kilns B. Tunnel kilns C. Sun D. None of these...

Pick out the wrong statement ?

A. Electrical conductivity of refractory is not important, when these are to be used in electrical furnaces B. Graphite and metals are the good electrical conductor among the refractories and others are all electrical insulators C. Refractories used for lining electrical furnaces should ordinarily have very low electrical conductivity D. Electrical conductivity of porous refractory … Pick out the wrong statement ?Read More...

______________ bricks should not be used in oxidising atmosphere?

A. Tar dolomite B. Carbon C. Silica D. Fireclay...