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Blanket, Module, Bulk paper, rope, and vacuum formed shaped are:
Blanket, Module, Bulk paper, rope, and vacuum formed shaped are:A . Shaped refractory B. Unshaped refractory C. Refractory fibers D. All of the aboveView AnswerAnswer: C
Based on-screen analysis, the size of Alumina C silicate aggregate in typical modern castable is
Based on-screen analysis, the size of Alumina C silicate aggregate in typical modern castable isA . 50 C 60% B. 60 C 70% C. 70 C 8-% D. None of the aboveView AnswerAnswer: B
Commercially on calcined basis bauxite must contain at least
Commercially on calcined basis bauxite must contain at leastA . 65% fused silica B. 60% alumina C. 65% alumina D. None of the aboveView AnswerAnswer: C
Compositions of ground refractory materials which require relatively high temperatures for the development of an adequate bond (commonly called the ceramic bond) is called
Compositions of ground refractory materials which require relatively high temperatures for the development of an adequate bond (commonly called the ceramic bond) is calledA . air setting refractories B. heat setting refractories C. air and heat setting refractories D. none of the aboveView AnswerAnswer: B
A combination of refractory grain and suitable bonding agent that, after the addition of a proper liquid, is generally poured into place to form a refractory shape or structure which becomes rigid because of chemical action is called
A combination of refractory grain and suitable bonding agent that, after the addition of a proper liquid, is generally poured into place to form a refractory shape or structure which becomes rigid because of chemical action is calledA . mortar B. castable C. ceramic modules D. all of the aboveView...
Cristobalite is an important constituent of
Cristobalite is an important constituent ofA . Alumina bricks B. Silica brick C. Magnesia brick D. Insulating brickView AnswerAnswer: B
In API RP 936, the referenced ASTM standard procedure for cold crushing strength and modulus of rupture is
In API RP 936, the referenced ASTM standard procedure for cold crushing strength and modulus of rupture isA . C 133 C 97 B. C704 C 01 C. C181 C 91 D. None of the aboveView AnswerAnswer: A
Materials having refractory properties which form a refractory body when bonded into a conglomerate mass by a matrix is called
Materials having refractory properties which form a refractory body when bonded into a conglomerate mass by a matrix is calledA . Cementitious concrete B. Refractory mass C. Refractory aggregate D. None of the aboveView AnswerAnswer: C
Brick, tile, fired shapes and fused cast shapes are
Brick, tile, fired shapes and fused cast shapes areA . shaped refractory B. unshaped refractory C. refractory fiber D. all aboveView AnswerAnswer: A
Refractories containing a substantial amount of silica which is reactive with basic refractories, basic slags, or basic fluxes at high temperatures are known as
Refractories containing a substantial amount of silica which is reactive with basic refractories, basic slags, or basic fluxes at high temperatures are known asA . Acid refractories B. Basic refractories C. Natural refecatories D. None of the aboveView AnswerAnswer: A
