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 60 and 40 20 and 80 80 and 20 50 and 50 60 and 40 20 and 80 80 and 20 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Highest melting (m.p = 3070°C) oxide refractory is Zirconia Alumina Magnesia Thoria Zirconia Alumina Magnesia Thoria ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cermets are All of these Used in space vehicles, missiles & nuclear energy plants Having high strength & resistance to high temperature Composite material containing both ceramic & metallic constituents All of these Used in space vehicles, missiles & nuclear energy plants Having high strength & resistance to high temperature Composite material containing both ceramic & metallic constituents ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silliminite (Al2O₃.SiO₂) refractory, which is a neutral refractory, is not used in Crucibles Glass melting furnace Gas retorts Pottery furnace Crucibles Glass melting furnace Gas retorts Pottery furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ °C. >2000 500 1000 >1350 >2000 500 1000 >1350 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness/fusion points of 'superduty' refractories is __________ °C. > 1730 1630-1670 > 2000 1520-1630 > 1730 1630-1670 > 2000 1520-1630 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS