Refractory Technology Which of the following is not a high alumina refractory material? Diaspore Kyanite Periclase Sillimanite Diaspore Kyanite Periclase Sillimanite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the Neither A nor B Both A & B Corrosion by layer of slag Washing action of metal Neither A nor B Both A & B Corrosion by layer of slag Washing action of metal ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar bonded dolomite bricks Are stored under controlled temperature & humidity to avoid hydration Have poorer hydration resistance than pitch bonded bricks All of these Are used in outer lining of L.D. converters Are stored under controlled temperature & humidity to avoid hydration Have poorer hydration resistance than pitch bonded bricks All of these Are used in outer lining of L.D. converters ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carborundum used for making crucibles for melting non-ferrous metals is chemically Zirconium sulphate Crystalline magnesia Silicon carbide Silicon nitride Zirconium sulphate Crystalline magnesia Silicon carbide Silicon nitride ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An ideal refractory should have high Shrinkage ability Spalling rate Fusion point None of these Shrinkage ability Spalling rate Fusion point None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Electrical resistor bars are made of Silicon carbide Alumina Zirconia Graphite Silicon carbide Alumina Zirconia Graphite ANSWER DOWNLOAD EXAMIANS APP
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