Refractory Technology Pure oxide refractories are generally monocrystaliine in nature and are self bonded __________ bricks are generally used as moderator in nuclear reactors. Thoria Beryllia Carborundum Corundum Thoria Beryllia Carborundum Corundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Crushing strength of a refractory Is unaffected with change in service temperature Decreases with rise in service temperature Increases with rise in service temperature Decreases with increase in porosity Is unaffected with change in service temperature Decreases with rise in service temperature Increases with rise in service temperature Decreases with increase in porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pyrometric cone equivalent (PCE) of a refractory is the measure of its Fusion point Resistance to carbon monoxide attack Resistance to slag penetration Spalling resistance Fusion point Resistance to carbon monoxide attack Resistance to slag penetration Spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the density of silica refractories, its Both A & B Resistance to slag attack increases Spalling resistance reduces Neither A nor B Both A & B Resistance to slag attack increases Spalling resistance reduces Neither A nor B 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. 1520 1730 1630 1670 1520 1730 1630 1670 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be Oxidising Neutral Neither A nor B Either A or B Oxidising Neutral Neither A nor B Either A or B ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS