Refractory Technology Test piece for determination of RUL of a refractory is heated in a/an Oxidising atmosphere Electric furnace Neutral atmosphere Reducing atmosphere Oxidising atmosphere Electric furnace Neutral atmosphere Reducing atmosphere ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ nozzles are used in continuous casting of steel, Zircon Beryllia Thoria Carborundum Zircon Beryllia Thoria Carborundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material? Water Lime Aluminium phosphate Plaster of paris Water Lime Aluminium phosphate Plaster of paris ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks should not be used in oxidising atmosphere. Carbon Fireclay Tar dolomite Silica Carbon Fireclay Tar dolomite Silica ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology SiO₂ percentage in firebrick is about 80-85 >94 55-60 35-40 80-85 >94 55-60 35-40 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent. 14-20 2-3 5-7 7-12 14-20 2-3 5-7 7-12 ANSWER DOWNLOAD EXAMIANS APP
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