Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale. Options: A . &nbspChrome or magnesite B . &nbspSilicon carbide C . &nbspSilica D . &nbspLowduty fireclay

Lower wall courses of soaking pits are made of _________

Question

Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale.

Options:

A . Chrome or magnesite

B . Silicon carbide

C . Silica

D . Lowduty fireclay

Answer: Option A

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Question 1. Spalling resistance of a refractory can not be increased by....

Question 2. An ideal refractory should have high....

Question 3. Which is the stable form of silica between 1470°C and the melting point 1713°C ?....

Question 4. Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be....

Question 5. Porosity of silica bricks varies from __________ percent.....

Question 6. Maximum alumina content in high alumina refractory can be as high as __________ percent.....

Question 7. Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent.....

Question 8. Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content....maximum alumina content can be as high as __________ percent.

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Question 10. In panel test for spalling resistance, the average face temperature of panel assembly is maintained at __________ °C fo....panel assembly is maintained at __________ °C for 24 hours.

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