Refractory Technology With decrease in porosity, the __________ of the refractories decreases. Thermal conductivity Strength None of these Spalling resistance Thermal conductivity Strength None of these Spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Mixing of ground refractory material and water is done in a __________ mill. Ball Tube Rod Pug Ball Tube Rod Pug ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spray test determines the __________ of refractories. Permanent linear change Resistance to slag penetration RUL Resistance to CO attack Permanent linear change Resistance to slag penetration RUL Resistance to CO attack ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Because of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns. 2400 2700 2200 1800 2400 2700 2200 1800 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rate of slag attack on refractories increases with rise in temperature due to the None of these Oxidising condition in the furnace Decreased viscosity of slag Increased thermal conductivity of brick None of these Oxidising condition in the furnace Decreased viscosity of slag Increased thermal conductivity of brick ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which one contains minimum percentage of SiO₂? Firebrick Semi-silica Aluminous firebrick Sillimanite Firebrick Semi-silica Aluminous firebrick Sillimanite ANSWER DOWNLOAD EXAMIANS APP
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