1.

At what temperature does the silica sand start expanding thermally?(a) 918°F(b) 843°F(c) 1063°F(d) 1124°F

Answer» The correct choice is (c) 1063°F

Easiest explanation: It is one of the disadvantages of silica sand, that it has its thermal expansion temperature at 1063°F. At this temperature, the volume of the sand starts to increase.


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