Fireclay refractories

Question

Options:

A . Are not resistant to the action of basic slags

B . Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming fusible aluminates silicates etc

C . Shrink during firing

D . All of the above

Answer: Option D

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More Questions on This Topic :

Question 1. Which is the most stable crystalline form of silica at room temperature?....

Question 2. Fireclay refractories have....

Question 3. 'Super refractories' are made from pure....

Question 4. Pyrometric cone equivalent (PCE) of a refractory is the measure of its....

Question 5. Grog addition in fireclay during brick manufacture is done to....

Question 6. The maximum linear expansion of silica bricks during firing is about __________ percent.....

Question 7. The highest melting pure oxide (m.p. > 3000°C) is....

Question 8. With increase in the porosity, thermal spalling resistance of fireclay brick....

Question 9. Ganister is a source of the....

Question 10. Use of higher percentage of lime for bonding silica bricks, reduces their....

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