Refractory Technology Refractoriness under load (RUL) is the most important property for the refractory bricks None of these Used for furnace insulation At the hearth bottom of the furnace on which stock is placed Used in the roof of the furnace None of these Used for furnace insulation At the hearth bottom of the furnace on which stock is placed Used in the roof of the furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Basic bricks are not made of Chromite Magnesite Foresterite Fireclay Chromite Magnesite Foresterite Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dry mix hydraulic compositions of refractory aggregates with suitable bonding materials are called refractory Castables Mortars None of these Cements Castables Mortars None of these Cements 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 . 250 450 150 65 250 450 150 65 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of fireclay bricks is about __________ kgf/cm². 100-150 50-100 200-400 500-1000 100-150 50-100 200-400 500-1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion temperature of pure silica (SiO₂) is __________ °C. 2570 2800 1350 1715 2570 2800 1350 1715 ANSWER DOWNLOAD EXAMIANS APP
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