Refractory Technology Lower part of hot metal mixer are lined with __________ bricks. Carborundum High alumina Silica Superduty fireclay Carborundum High alumina Silica Superduty fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Machine moulding of dry mixture of refractories requires a pressure of the order of __________ kg/cm². 100 500 10 1000 100 500 10 1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High porosity refractory bricks have Better thermal spalling resistance All of these Poor heat conductivity & low strength Poor resistance to the peneration of molten slag, metal & flue gases Better thermal spalling resistance All of these Poor heat conductivity & low strength Poor resistance to the peneration of molten slag, metal & flue gases ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of ordinary fireclay brick is about 950 kg/cm² . On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as __________ kg/cm² . 65 150 450 250 65 150 450 250 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Roof of a basic open hearth furnace is lined with __________ bricks. Silica Fireclay Magnesite Dolomite Silica Fireclay Magnesite Dolomite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with __________ bricks. Silica Semi-silica Fireclay Bakelite impregnated or fused periclase Silica Semi-silica Fireclay Bakelite impregnated or fused periclase ANSWER DOWNLOAD EXAMIANS APP
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