Glass MCQs

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1. ………Is a super cooled rigid inorganic liquid





2. ……..Is the mixture of silicates of alkali and alkaline earth metals





3. The given approximate formula (xR2O·yMO·6SiO2) is of





4. The raw material used up to 70–75% in the manufacturing of glass is …….





5. ……….facilitates the melting of raw materials of glass





6. The manufacturing of glass is made in …





7. To remove bubbles of gas from the viscous solution of glass is called …





8. The process of slow and homogeneous cooling of glass product is called …





9. ………..process occurs in the Tank Furnace





10. The process of making solution of glass more viscous is called …





11. Broken pieces of glass used in the manufacture of glass are called …





12. ………..is mostly used in the manufacturing of laboratory apparatus





13. The percentage of cullet in the raw material of glass is …





14. The refractive index of ………….is more





15. The process that helps to remove the inner strain of glass is called …





16. In ……… the percentage of B2O3 is 13–28%





17. Glass is called soft glass





18. The cost for the manufacture of glass curtails down with the use of





19. …….. Glass is also called Jena glass





20. The cheapest variety of glass is known as





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