Refractory Technology Chrome magnesite is not used in the All of these Wear out lining of steel melting furnaces Inner lining of L.D. converter Aluminium melting furnaces All of these Wear out lining of steel melting furnaces Inner lining of L.D. converter Aluminium melting furnaces ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High refractorinness of refractory bricks means, that it has a Low porosity Low spalling resistance High spalling resistance High resistance to fusion Low porosity Low spalling resistance High spalling resistance High resistance to fusion ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ramming masses are used for Obtaining monolithic working faces Both A & B Repairing construction of various furnace parts Neither A nor B Obtaining monolithic working faces Both A & B Repairing construction of various furnace parts Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The linear thermal expansion of __________ bricks upto 1000 °C is very low of the order of ≤ 0.5 percent. Fireclay Corundum Silica Magnesite Fireclay Corundum Silica Magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent. 5-7 2-3 14-20 7-12 5-7 2-3 14-20 7-12 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite chrome refractories Have very low thermal co-efficient of expansion Have better spalling resistance than chrome magnesite refractories Are not at all resistant to the corrosive action of iron oxide Have very low (50 kg/cm² ) cold crushing strength (C.C.S.), and can not be used in metalcase form Have very low thermal co-efficient of expansion Have better spalling resistance than chrome magnesite refractories Are not at all resistant to the corrosive action of iron oxide Have very low (50 kg/cm² ) cold crushing strength (C.C.S.), and can not be used in metalcase form ANSWER DOWNLOAD EXAMIANS APP