NEET MDS

The Power Course

Quartz is added to gypsum bonded investment to



Choices

1 ) Increase strength
2 ) Counter balance contraction of gypsum during heating
3 ) Aid in hygroscopic expansion
4 ) increase self life of investment

Explanation



Answer

Counter balance contraction of gypsum during heating
Aid in hygroscopic expansion

Last Modified : 27-Mar-2020

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