Refractory Technology Conversion of silica mineral to cristobalite is accompanied by reduction in its Both A & B Neither A nor B Specific gravity Volume Both A & B Neither A nor B Specific gravity Volume ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Basic bricks are not made of Chromite Foresterite Magnesite Fireclay Chromite Foresterite Magnesite Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology SiO₂ percentage in firebrick is about 55-60 80-85 35-40 >94 55-60 80-85 35-40 >94 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar bonded dolomite bricks Have poorer hydration resistance than pitch bonded bricks Are stored under controlled temperature & humidity to avoid hydration Are used in outer lining of L.D. converters All of these Have poorer hydration resistance than pitch bonded bricks Are stored under controlled temperature & humidity to avoid hydration Are used in outer lining of L.D. converters All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High refractorinness of refractory bricks means, that it has a Low porosity High spalling resistance Low spalling resistance High resistance to fusion Low porosity High spalling resistance Low spalling resistance High resistance to fusion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Permeability of bricks is a measure of the Refractoriness Melting point Expansion during heating Rate at which a fluid will pass through the pores Refractoriness Melting point Expansion during heating Rate at which a fluid will pass through the pores ANSWER DOWNLOAD EXAMIANS APP
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