Refractory Technology Lower part of hot metal mixer are lined with __________ bricks. Superduty fireclay Silica Carborundum High alumina Superduty fireclay Silica Carborundum High alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following is not a neutral refractory? Silicon carbide Magnesite Graphite Chromite Silicon carbide Magnesite Graphite Chromite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot face insulating linings of high purity alumina fused mullite are used, where All of these Presence of iron or silica is harmful Highly reducing conditions are involved Very high temperatures are involved All of these Presence of iron or silica is harmful Highly reducing conditions are involved Very high temperatures are involved ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following bricks should not be used, if the furnace is to be used intermit-tantly? Silicon carbide bricks Sillimanite Silica bricks Firebricks Silicon carbide bricks Sillimanite Silica bricks Firebricks 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 subjected to fluctuation in temperature Not required to resist the corrosive action of basic slag Both (b) and © Used for raising & maintaining high temperature Not subjected to fluctuation in temperature Not required to resist the corrosive action of basic slag Both (b) and © ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion point of a basic refractory material is Not affected by the addition of acid oxides Reduced by the addition of acid oxides Always less than 1000°C Increased by the addition of acid oxides Not affected by the addition of acid oxides Reduced by the addition of acid oxides Always less than 1000°C Increased by the addition of acid oxides ANSWER DOWNLOAD EXAMIANS APP
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