Refractory Technology Porosity of fireclay refractories is __________ percent. 43961 25-35 44129 35-50 43961 25-35 44129 35-50 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a high alumina refractory? Dolomite Bauxite Mullite Corrundum Dolomite Bauxite Mullite Corrundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractory blocks All of these Are acidic in nature Are used in the hearth of blast furnace Are wetted by molten iron All of these Are acidic in nature Are used in the hearth of blast furnace Are wetted by molten iron ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pure oxide refractories are generally monocrystaliine in nature and are self bonded __________ bricks are generally used as moderator in nuclear reactors. Carborundum Corundum Thoria Beryllia Carborundum Corundum Thoria Beryllia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pyrometric cone equivalent (PCE) value (Segar cone) of 'superduty refractories' is more than 33 which corresponds to a temperature of __________ °C. 1670 1630 1730 1520 1670 1630 1730 1520 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High porosity refractory bricks have Poor heat conductivity & low strength Better thermal spalling resistance Poor resistance to the peneration of molten slag, metal & flue gases All of these Poor heat conductivity & low strength Better thermal spalling resistance Poor resistance to the peneration of molten slag, metal & flue gases All of these ANSWER DOWNLOAD EXAMIANS APP
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