Refractory Technology Pyrometric cone equivalent (PCE) of a refractory is the measure of its Spalling resistance Resistance to carbon monoxide attack Fusion point Resistance to slag penetration Spalling resistance Resistance to carbon monoxide attack Fusion point Resistance to slag penetration ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Graphite or carbon refractories Should be used in neutral or reducing atmosphere Are not resistant to corrosion by slag Exhibit high shrinkage on thermal treatment Exihibit wetting characteristics Should be used in neutral or reducing atmosphere Are not resistant to corrosion by slag Exhibit high shrinkage on thermal treatment Exihibit wetting characteristics ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under loads (RUL) is quite close to the fusion temperature (PCE) for __________ bricks. Very low alumina Fireclay Dolomite Silica Very low alumina Fireclay Dolomite Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay refractories Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc Shrink during firing Are not resistant to the action of basic slags All of these Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc Shrink during firing Are not resistant to the action of basic slags All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Electrical resistor bars are made of Graphite Alumina Zirconia Silicon carbide Graphite Alumina Zirconia Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which refractory must have controlled atmosphere (temperature and humidity) for its safe storage? Tar bonded dolomite bricks Mullite bricks Fireclay bricks Magnesite bricks Tar bonded dolomite bricks Mullite bricks Fireclay bricks Magnesite bricks ANSWER DOWNLOAD EXAMIANS APP
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