Refractory Technology Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent. 5-7 14-20 2-3 7-12 5-7 14-20 2-3 7-12 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Si percentage in silica refractories used in the walls of coke oven is about 60 95 80 45 60 95 80 45 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The main raw material for manufacture of silicon carbide refractories is Periclase Carborundum Bauxite Corrundum Periclase Carborundum Bauxite Corrundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the Corrosion by layer of slag Washing action of metal Neither A nor B Both A & B Corrosion by layer of slag Washing action of metal Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Test piece for determination of RUL of a refractory is heated in a/an Neutral atmosphere Electric furnace Oxidising atmosphere Reducing atmosphere Neutral atmosphere Electric furnace Oxidising atmosphere Reducing atmosphere ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High refractorinness of refractory bricks means, that it has a High spalling resistance Low porosity High resistance to fusion Low spalling resistance High spalling resistance Low porosity High resistance to fusion Low spalling resistance ANSWER DOWNLOAD EXAMIANS APP
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