Refractory Technology RUL of refractories depends on the Presence of impurities like iron & alkali Physical structure Chemical composition All of these Presence of impurities like iron & alkali Physical structure Chemical composition All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks having lower porosity have Low thermal conductivity High insulating properties Greater strength Low heat capacity Low thermal conductivity High insulating properties Greater strength Low heat capacity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Capacity of a refractory brick to withstand-sudden changes in temperature is denoted by the property called Spalling resistance Refractoriness None of these Refractoriness under load (RUL) Spalling resistance Refractoriness None of these Refractoriness under load (RUL) ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion temperature of pure silica (SiO₂) is __________ °C. 2800 1350 2570 1715 2800 1350 2570 1715 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be Either A or B Neither A nor B Oxidising Neutral Either A or B Neither A nor B Oxidising Neutral ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pyrometric cone equivalent (PCE) of a refractory is the measure of its Resistance to slag penetration Resistance to carbon monoxide attack Spalling resistance Fusion point Resistance to slag penetration Resistance to carbon monoxide attack Spalling resistance Fusion point ANSWER DOWNLOAD EXAMIANS APP
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