Refractory Technology With increasing alumina content, the fusion point of high alumina refractories Decreases May increase or decrease ; depends on its alumina content Increases Remains constant Decreases May increase or decrease ; depends on its alumina content Increases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be Neutral Oxidising Either A or B Neither A nor B Neutral Oxidising Either A or B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is required in an insulating refractory? High thermal conductivity Neither A nor B Both A & B Low porosity High thermal conductivity Neither A nor B Both A & B Low porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cermets are All of these Composite material containing both ceramic & metallic constituents Having high strength & resistance to high temperature Used in space vehicles, missiles & nuclear energy plants All of these Composite material containing both ceramic & metallic constituents Having high strength & resistance to high temperature Used in space vehicles, missiles & nuclear energy plants ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chromite refractories are Fired at a temperature of 600°C only Acidic refractory Neutral refractory Basic refractory Fired at a temperature of 600°C only Acidic refractory Neutral refractory Basic refractory ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum alumina content in high alumina refractory can be as high as __________ percent. 70 30 50 90 70 30 50 90 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS