Answer: A. 5 %
A good quality stone absorbs water less than 5%.
Solution
A good quality stone is crystalline, homogeneous and dense packed structure
Here are some characteristics of good quality stone
- Good quality stones have compressive strength greater than 1000 kg/cm2.
- Good quality stones have high durability.
- Good quality stones should have specific gravity of more than 2.7.
- Good quality stones should have toughness index of more than 13.
- Good quality stones should have water absorption less than 5%.
A good quality stone absorbs water less than 5% because good stone is less pervious.
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