Fireclay refractories have Options: A . &nbspLow co-efficient of thermal expansion B . &nbspPoor thermal spalling resistance C . &nbspTendency to expand unduly high during firing D . &nbspVery high cost

Fireclay refractories have

Question

Fireclay refractories have

Options:

A . Low co-efficient of thermal expansion

B . Poor thermal spalling resistance

C . Tendency to expand unduly high during firing

D . Very high cost

Answer: Option A

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Question 1. 'Super refractories' are made from pure....

Question 2. Pyrometric cone equivalent (PCE) of a refractory is the measure of its....

Question 3. Grog addition in fireclay during brick manufacture is done to....

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Question 5. The highest melting pure oxide (m.p. > 3000°C) is....

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Question 8. Use of higher percentage of lime for bonding silica bricks, reduces their....

Question 9. Chrome magnesite bricks are used in the....

Question 10. Faster rate of drying of moulded refractories results in high __________ of refractories.....

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