Refractory Technology Magnesite refractories are used for the construction of those furnaces, which are Not required to resist the corrosive action of basic slag Not subjected to fluctuation in temperature Used for raising & maintaining high temperature Both (b) and © Not required to resist the corrosive action of basic slag Not subjected to fluctuation in temperature Used for raising & maintaining high temperature Both (b) and © ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Graphite or carbon refractories Should be used in neutral or reducing atmosphere Are not resistant to corrosion by slag Exhibit high shrinkage on thermal treatment Exihibit wetting characteristics Should be used in neutral or reducing atmosphere Are not resistant to corrosion by slag Exhibit high shrinkage on thermal treatment Exihibit wetting characteristics ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower part of hot metal mixer are lined with __________ bricks. High alumina Silica Superduty fireclay Carborundum High alumina Silica Superduty fireclay Carborundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hollow refractory bricks are made by Extrusion Slip casting Hand moulding Pressing/machine moulding Extrusion Slip casting Hand moulding Pressing/machine moulding ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ nozzles are used in continuous casting of steel, Zircon Carborundum Beryllia Thoria Zircon Carborundum Beryllia Thoria ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology To resist spalling tendency, a refractory should have Low specific heat Greater diffusivity Low thermal co-efficient of expansion All of these Low specific heat Greater diffusivity Low thermal co-efficient of expansion All of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS