Refractory Technology Crushing strength of a refractory Increases with rise in service temperature Is unaffected with change in service temperature Decreases with rise in service temperature Decreases with increase in porosity Increases with rise in service temperature Is unaffected with change in service temperature Decreases with rise in service temperature Decreases with increase in porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ is the measure of the strength of refractory under the combined effect of temperature & load. Porosity RUL Thermal conductivity Specific gravity Porosity RUL Thermal conductivity Specific gravity 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? Plaster of paris Lime Aluminium phosphate Water Plaster of paris Lime Aluminium phosphate Water ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory materials are never used in the construction of Pressure vessels Ovens & retorts Orton cones Segar cones Pressure vessels Ovens & retorts Orton cones Segar cones ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion point of a basic refractory material is Always less than 1000°C Increased by the addition of acid oxides Not affected by the addition of acid oxides Reduced by the addition of acid oxides Always less than 1000°C Increased by the addition of acid oxides Not affected by the addition of acid oxides Reduced by the addition of acid oxides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is a neutral refractory? Graphite Magnesia Silica Magnesite chrome Graphite Magnesia Silica Magnesite chrome ANSWER DOWNLOAD EXAMIANS APP
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