Refractory Technology Firing temperature of magnesite bricks is about __________ °C. 1600-1800 1000-1200 2400-2600 800-1000 1600-1800 1000-1200 2400-2600 800-1000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of __________ °C. 770 570 270 70 770 570 270 70 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dilatometer is used for the determination of __________ of refractories. RUL Permanent linear change Resistance to CO attack Modulus of rupture RUL Permanent linear change Resistance to CO attack Modulus of rupture ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Roof of a basic open hearth furnace is lined with __________ bricks. Magnesite Dolomite Silica Fireclay Magnesite Dolomite Silica Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractory blocks Are acidic in nature Are wetted by molten iron Are used in the hearth of blast furnace All of these Are acidic in nature Are wetted by molten iron Are used in the hearth of blast furnace All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ferromagnetic ceramic material is not used in the Magnetic switches Transformers Thermal insulation Television sets Magnetic switches Transformers Thermal insulation Television sets ANSWER DOWNLOAD EXAMIANS APP
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