Refractory Technology RUL of refractories depends on the All of these Chemical composition Presence of impurities like iron & alkali Physical structure All of these Chemical composition Presence of impurities like iron & alkali Physical structure ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite bricks have poor resistance to attack by __________ slag. Acid None of these Lime Basic Acid None of these Lime Basic ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling resistance of a refractory can not be increased by Using a coarser grog during its manufacture Decreasing its thermal co-efficient of expansion Increasing its porosity Making it denser Using a coarser grog during its manufacture Decreasing its thermal co-efficient of expansion Increasing its porosity Making it denser ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of fireclay refractories is __________ percent. 25-35 43961 44129 35-50 25-35 43961 44129 35-50 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pyrometric cone equivalent (PCE) of a refractory is the measure of its Fusion point Spalling resistance Resistance to slag penetration Resistance to carbon monoxide attack Fusion point Spalling resistance Resistance to slag penetration Resistance to carbon monoxide attack ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite refractories are used for the construction of those furnaces, which are Used for raising & maintaining high temperature Not required to resist the corrosive action of basic slag Not subjected to fluctuation in temperature Both (b) and © Used for raising & maintaining high temperature Not required to resist the corrosive action of basic slag Not subjected to fluctuation in temperature Both (b) and © ANSWER DOWNLOAD EXAMIANS APP
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