Hollow refractory bricks are made by Options: A . &nbspSlip casting B . &nbspHand moulding C . &nbspPressing/machine moulding D . &nbspExtrusion

Hollow refractory bricks are made by

Question

Hollow refractory bricks are made by

Options:

A . Slip casting

B . Hand moulding

C . Pressing/machine moulding

D . Extrusion

Answer: Option A

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Question 1. Which property of refractories is the most important for top section of the blast furnace?....

Question 2. Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding ma....the following is not used solely as a binding material?

Question 3. Which of the following is not an acidic refractory?....

Question 4. Refractoriness of a typical silica brick corresponds to Segar cone number, '32', which is equivalent to a temperature of....'32', which is equivalent to a temperature of __________ °C.

Question 5. Pyrometric cone equivalent (PCE) value (Segar cone) of 'superduty refractories' is more than 33 which corresponds to a t....than 33 which corresponds to a temperature of __________ °C.

Question 6. Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of __________ °C.....when it is cooled below a temperature of __________ °C.

Question 7. Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of __________ °C.....when it is cooled below a temperature of __________ °C.

Question 8. PCE value (Segar cone) of superduty refractories is more than 33, which is equivalent to a temperature of __________ °C....33, which is equivalent to a temperature of __________ °C.

Question 9. Magnesite bricks have poor resistance to attack by __________ slag.....

Question 10. __________ bricks should not be used in oxidising atmosphere.....

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