Refractory Technology __________ bricks are used in the burning zone of a cement rotary kiln. Thoria High alumina Silicon carbide Fireclay Thoria High alumina Silicon carbide Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with __________ bricks. Bakelite impregnated or fused periclase Fireclay Silica Semi-silica Bakelite impregnated or fused periclase Fireclay Silica Semi-silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of zircon to silica refractory brick improves its Neither A nor B Neither A nor B Crushing strength Resistance to slag attack Neither A nor B Neither A nor B Crushing strength Resistance to slag attack ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following impurities reduces the refractoriness of magnesite bricks? Al2O₃ All of these SiO₂ CaO Al2O₃ All of these SiO₂ CaO ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which refractory must have controlled atmosphere (temperature and humidity) for its safe storage? Mullite bricks Tar bonded dolomite bricks Magnesite bricks Fireclay bricks Mullite bricks Tar bonded dolomite bricks Magnesite bricks Fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent. 2-3 5-7 14-20 7-12 2-3 5-7 14-20 7-12 ANSWER DOWNLOAD EXAMIANS APP
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