Refractory Technology Questions

• Which of the following is not an acidic refractory?
• Fireclay refractories have
• 'Super refractories' are made from pure
• Chromite refractories are
• Spalling resistance of a refractory can not be increased by
• Alumina-graphite bricks are used for lining the
• Zirconia refractory
• With increasing alumina content, the fusion point of high alumina refractories
• Which of the following does not occur during firing/burning of refractories?
• Cermets are
• Which of the following consumes the maximum tonnage of refractories annually in an integrated steel plant?
• Silliminite (Al2O3.SiO2) refractory, which is a neutral refractory, is not used in
• Periclase is
• Basic bricks are not made of
• Chrome magnesite bricks are used in the
• Ferromagnetic ceramic material is not used in the
• Insulating refractories should have
• Cold crushing strength of a refractory does not depend upon its
• PCE value (Segar cone) of superduty refractories is more than 33, which is equivalent to a temperature of __________ °C.
• Which one contains maximum percentage of Al2O3?