Refractory Technology Which of the following has the lowest electrical resistivity? Zircon Fireclay Alumina Graphite Zircon Fireclay Alumina Graphite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology To resist spalling tendency, a refractory should have All of these Low thermal co-efficient of expansion Greater diffusivity Low specific heat All of these Low thermal co-efficient of expansion Greater diffusivity Low specific heat 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. 80 and 20 50 and 50 60 and 40 20 and 80 80 and 20 50 and 50 60 and 40 20 and 80 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica below 870°C ? Cristobalite Tridymite Quartz None of these Cristobalite Tridymite Quartz None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of fireclay refractories is __________ percent. 44129 35-50 25-35 43961 44129 35-50 25-35 43961 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not an acidic refractory? Silica bricks Magnesia bricks Bauxite bricks Fireclay bricks Silica bricks Magnesia bricks Bauxite bricks Fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
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