Refractory Technology High refractorinness of refractory bricks means, that it has a Low spalling resistance High spalling resistance High resistance to fusion Low porosity Low spalling resistance High spalling resistance High resistance to fusion Low porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Both A & B Neither A nor B Cooling down Warming up Both A & B Neither A nor B Cooling down Warming up ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of fireclay refractories is __________ percent. 43961 25-35 44129 35-50 43961 25-35 44129 35-50 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which brick undergoes maximum shrinkage on drying? Tar bonded dolomite bricks Chromite bricks Magnesite bricks Fireclay bricks Tar bonded dolomite bricks Chromite bricks Magnesite bricks Fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which form of silica has the highest specific gravity? Cristobalite All of these Tridymite Quartz Cristobalite All of these Tridymite Quartz ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Most Cermets, which normally have high thermal conductivity and high thermal shock resistance, comprises of ceramic & metallic components of __________ percent respectively. 50 and 50 20 and 80 60 and 40 80 and 20 50 and 50 20 and 80 60 and 40 80 and 20 ANSWER DOWNLOAD EXAMIANS APP
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