Refractory Technology Which refractory must have controlled atmosphere (temperature and humidity) for its safe storage? Mullite bricks Tar bonded dolomite bricks Fireclay bricks Magnesite bricks Mullite bricks Tar bonded dolomite bricks Fireclay bricks Magnesite bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology silicon carbide refractories have very low None of these Thermal conductivity Resistance to thermal shock Refractoriness (< 1700°C) None of these Thermal conductivity Resistance to thermal shock Refractoriness (< 1700°C) ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following has the lowest electrical resistivity? Alumina Graphite Zircon Fireclay Alumina Graphite Zircon Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks are used in the burning zone of a cement rotary kiln. Silicon carbide High alumina Thoria Fireclay Silicon carbide High alumina Thoria Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Firing of refractory brick is done to Develop stable mineral forms in them All of these Dehydrate the dried refractory Form ceramic bonds necessary for development of high crushing strength in the finished product Develop stable mineral forms in them All of these Dehydrate the dried refractory Form ceramic bonds necessary for development of high crushing strength in the finished product ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology RUL of refractories depends on the Physical structure Chemical composition All of these Presence of impurities like iron & alkali Physical structure Chemical composition All of these Presence of impurities like iron & alkali ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS