Refractory Technology Refractory bricks with lower permeability is produced by using All of these Higher moulding pressure Finer grog size Higher firing temperature All of these Higher moulding pressure Finer grog size Higher firing temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following does not occur during firing/burning of refractories? Vitrification Decrease in crushing strength Development of stable mineral form Removal of water of hydration Vitrification Decrease in crushing strength Development of stable mineral form Removal of water of hydration ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Resistance to slag attack of a refractory Decreases at higher temperature Depends on the nature of slag & refractory Decreases, if defective joints & cracks exist in the refractory All of these Decreases at higher temperature Depends on the nature of slag & refractory Decreases, if defective joints & cracks exist in the refractory All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following consumes the maximum tonnage of refractories annually in an integrated steel plant? Ceheating furnace Soaking pits L.D. converter Rotary lime kiln Ceheating furnace Soaking pits L.D. converter Rotary lime kiln ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Test piece for determination of RUL of a refractory is heated in a/an Neutral atmosphere Oxidising atmosphere Electric furnace Reducing atmosphere Neutral atmosphere Oxidising atmosphere Electric furnace Reducing atmosphere ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spray test determines the __________ of refractories. Permanent linear change Resistance to slag penetration Resistance to CO attack RUL Permanent linear change Resistance to slag penetration Resistance to CO attack RUL ANSWER DOWNLOAD EXAMIANS APP
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