Refractory Technology - Study Mode

[#41] Pyrometric cone equivalent (PCE) value (Segar cone) of 'superduty refractories' is more than 33 which corresponds to a temperature of __________ °C.
Correct Answer

(D) 1730

[#42] Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of __________ °C.
Correct Answer

(C) 270
(G) 270

[#43] PCE value (Segar cone) of superduty refractories is more than 33, which is equivalent to a temperature of __________ °C.
Correct Answer

(D) 1730

[#44] Magnesite bricks have poor resistance to attack by __________ slag.
Correct Answer

(C) Acid

[#45] __________ bricks should not be used in oxidising atmosphere.
Correct Answer

(B) Carbon