Refractory Technology Refractories are dried in the Sun None of these Rotary kilns Tunnel kilns Sun None of these Rotary kilns Tunnel kilns ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rate of slag attack on refractories increases with rise in temperature due to the Decreased viscosity of slag None of these Oxidising condition in the furnace Increased thermal conductivity of brick Decreased viscosity of slag None of these Oxidising condition in the furnace Increased thermal conductivity of brick ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot face insulating linings of high purity alumina fused mullite are used, where Very high temperatures are involved Presence of iron or silica is harmful All of these Highly reducing conditions are involved Very high temperatures are involved Presence of iron or silica is harmful All of these Highly reducing conditions are involved ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An ideal refractory should have high Fusion point None of these Spalling rate Shrinkage ability Fusion point None of these Spalling rate Shrinkage ability ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chrome magnesite bricks are Neutral in nature Made by mixing 30% chromite and 70% periclase Having higher RUL than silica bricks Acidic in nature Neutral in nature Made by mixing 30% chromite and 70% periclase Having higher RUL than silica bricks Acidic in nature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Presence of MgO in alumino-silicate refractories __________ its refractoriness. Either A or B; depends on its quantity Does not affect Increases Lowers Either A or B; depends on its quantity Does not affect Increases Lowers ANSWER DOWNLOAD EXAMIANS APP
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