Refractory Technology Which of the following has the lowest electrical resistivity? Fireclay Zircon Graphite Alumina Fireclay Zircon Graphite Alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Si percentage in silica refractories used in the walls of coke oven is about 45 60 95 80 45 60 95 80 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology To resist spalling tendency, a refractory should have Low thermal co-efficient of expansion All of these Low specific heat Greater diffusivity Low thermal co-efficient of expansion All of these Low specific heat Greater diffusivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion temperature of pure silica (SiO₂) is __________ °C. 1715 2570 1350 2800 1715 2570 1350 2800 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity is induced in insulating refractories by adding All of these Ammonium chloride/sulphate Powdered naphthalene Calcium phosphate All of these Ammonium chloride/sulphate Powdered naphthalene Calcium phosphate ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of refractories depends upon its Composition Firing temperature All of these Texture Composition Firing temperature All of these Texture ANSWER DOWNLOAD EXAMIANS APP
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