Refractory Technology Mcqs for Chemical


Q.  Which is the most stable crystalline form of silica at room temperature ?

a. Quartz
b. Cristobalite
c. Tridymite
d. None of these


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Which one contains maximum percentage of Al2O3 ?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Which is not a basic refractory ?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Silica refractories__________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Firing of refractory brick is done to __________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Ferromagnetic ceramic material is not used in the__________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Which one expands on heating ?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  _____________ nozzles are used in continuous casting of steel?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Chromite refractories_____________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Zircon refractories have__________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
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_______________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Which is the stable form of silica upto 1470°C ?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Thermal spalling mainly occurs during _____________ of furnaces?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  High alumina refractories are used in the ___________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  _____________ is not a single oxide-refractory?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Chrome magnesite brick is not used for lining the___________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Most Cermets, which normally have high thermal conductivity and high thermal shock resistance, comprises of ceramic & metallic components of ______________ percent respectively?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  ____________ of carbon blocks in the hearth of blast furnace helps in avoiding skull formation, when it becomes cold?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Rotary kilns meant for calcination of limestone are lined with chrome magnesite in ______________ zone?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Semi-silica bricks compared to silica bricks have_______________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Which of the following impurities reduces the refractoriness of magnesite bricks ?
Category: Chemical Engineering Mcqs,   Published by: teswesm