Refractory Technology Mcqs for Chemical

Q.  Roof of a basic open hearth furnace is lined with ______________ bricks?

a. Silica
b. Fireclay
c. Dolomite
d. Magnesite


ANSWER: See Answer
 
No explanation is available for this question!
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MCQs:  Silica refractories__________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Firing of refractory brick is done to __________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Ferromagnetic ceramic material is not used in the__________________?
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MCQs:  Which one expands on heating ?
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MCQs:  _____________ nozzles are used in continuous casting of steel?
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MCQs:  Chromite refractories_____________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Zircon refractories have__________________?
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MCQs:  Cermets are combination of ceramic and metallic materials due to which they have high strength & resistance to high temperature. Cermets are used in the_______________?
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MCQs:  Which is the stable form of silica upto 1470°C ?
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MCQs:  Thermal spalling mainly occurs during _____________ of furnaces?
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MCQs:  High alumina refractories are used in the ___________________?
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MCQs:  _____________ is not a single oxide-refractory?
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MCQs:  Chrome magnesite brick is not used for lining the___________________?
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MCQs:  Most Cermets, which normally have high thermal conductivity and high thermal shock resistance, comprises of ceramic & metallic components of ______________ percent respectively?
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MCQs:  ____________ of carbon blocks in the hearth of blast furnace helps in avoiding skull formation, when it becomes cold?
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MCQs:  Rotary kilns meant for calcination of limestone are lined with chrome magnesite in ______________ zone?
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MCQs:  Semi-silica bricks compared to silica bricks have_______________?
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MCQs:  Which of the following impurities reduces the refractoriness of magnesite bricks ?
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MCQs:  SiO2 percentage in firebrick is about____________________?
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MCQs:  ‘Spinel’, a refractory mineral is chemically represented as____________________?
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