Refractory Technology Mcqs for Chemical

Q.  Furnace atmosphere for softening temperature determination of refractories (in which Seger Cones are placed) should be __________________?

a. Oxidising
b. Neutral
c. Either A. or B.
d. Neither A. nor B.


ANSWER: See Answer
 
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MCQs:  Dolomite bricks have good resistance to attack by_____________________?
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MCQs:  Zirconia refractories are not used in_____________________?
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MCQs:  The highest melting pure oxide (m.p. > 3000°C)is___________________?
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MCQs:  The largest consumer of refractories is the _______________ industry?
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MCQs:  Crushing strength of a refractory____________________?
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MCQs:  Colour of fireclay bricks is_________________?
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MCQs:  Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with _____________ bricks?
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MCQs:  Highest melting (m.p = 3070°C) oxide refractory is__________________?
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MCQs:  Dilatometer is used for the determination of ______________ of refractories?
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MCQs:  Refractoriness under loads (RUL) is quite close to the fusion temperature (PCE) for _____________ bricks?
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MCQs:  The maximum linear expansion of silica bricks during firing is about ______________ percent?
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MCQs:  Hot blast main (carrying air at 1000°C) in blast furnace are lined with ______________ bricks?
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MCQs:  With decrease in porosity, the ______________ of the refractories decreases?
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MCQs:  ______________ bricks should not be used in oxidising atmosphere?
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MCQs:  Magnesite bricks have poor resistance to attack by _____________ slag?
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MCQs:  Which is not a natural insulating material ?
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MCQs:  Which of the following is not a high alumina refractory material ?
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MCQs:  ___________________ is the measure of the strength of refractory under the combined effect of temperature & load ?
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MCQs:  Which one contains minimum percentage of SiO2 ?
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MCQs:  Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content can be as high as _____________ percent?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts