Refractory Technology Cermets are combination of ceramic and metallic materials due to which they have high strength & resistance to high temperature. Cermets are used in the Nuclear reactors, missiles & space crafts Insulation of high temperature furnaces Roof of electric furnaces Hearth of the blast furnace Nuclear reactors, missiles & space crafts Insulation of high temperature furnaces Roof of electric furnaces Hearth of the blast furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High density refractory bricks have lower Thermal conductivity Spalling resistance Slag penetration resistance Fusion point Thermal conductivity Spalling resistance Slag penetration resistance Fusion point ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following impurities reduces the refractoriness of magnesite bricks? All of these Al2O₃ SiO₂ CaO All of these Al2O₃ SiO₂ CaO ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Permeability of bricks is a measure of the Expansion during heating Melting point Rate at which a fluid will pass through the pores Refractoriness Expansion during heating Melting point Rate at which a fluid will pass through the pores Refractoriness ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The largest consumer of refractories is the __________ industry. Cement Metallurgical Power Fertiliser Cement Metallurgical Power Fertiliser ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Crushing strength of a refractory Is unaffected with change in service temperature Increases with rise in service temperature Decreases with increase in porosity Decreases with rise in service temperature Is unaffected with change in service temperature Increases with rise in service temperature Decreases with increase in porosity Decreases with rise in service temperature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS