Refractory Technology An ideal refractory should have high Fusion point Shrinkage ability Spalling rate None of these Fusion point Shrinkage ability Spalling rate None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale. Silicon carbide Lowduty fireclay Silica Chrome or magnesite Silicon carbide Lowduty fireclay Silica Chrome or magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal diffusivity of a refractory brick is high, when its __________ is high. Thermal conductivity Density Specific heat None of these Thermal conductivity Density Specific heat None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spray test determines the __________ of refractories. RUL Resistance to slag penetration Resistance to CO attack Permanent linear change RUL Resistance to slag penetration Resistance to CO attack Permanent linear change 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. 2700 1800 2200 2400 2700 1800 2200 2400 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories have very high Wetting characteristics Thermal conductivity Refractoriness Both B and C Wetting characteristics Thermal conductivity Refractoriness Both B and C ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS