Refractory Technology Magnesite bricks are used in those parts of furnaces, which are Subjected to temperature fluctuation Required to resist corrosive basic slag None of these Subjected to high load Subjected to temperature fluctuation Required to resist corrosive basic slag None of these Subjected to high load ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following has the lowest electrical resistivity? Zircon Fireclay Graphite Alumina Zircon Fireclay Graphite Alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology silicon carbide refractories have very low Refractoriness (< 1700°C) None of these Thermal conductivity Resistance to thermal shock Refractoriness (< 1700°C) None of these Thermal conductivity Resistance to thermal shock ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite refractories have low resistance to Attack by basic slag Both B and C Disintegration on sudden change of temperature Abrasion Attack by basic slag Both B and C Disintegration on sudden change of temperature Abrasion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ferromagnetic ceramic material is not used in the Television sets Transformers Thermal insulation Magnetic switches Television sets Transformers Thermal insulation Magnetic switches ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of silica bricks varies from __________ percent. 20 to 30 45 to 60 5 to 10 60 to 75 20 to 30 45 to 60 5 to 10 60 to 75 ANSWER DOWNLOAD EXAMIANS APP
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