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Q: According to IS : 654-1962, the maximum water absorption percentage of Class AA type Mangalore pattern tiles is
  • A. 18%
  • B. 35%
  • C. 29%
  • D. 25%
Correct Answer: Option A - As per IS - 654 : 1992, the maximum water absorption for clay roofing tiles, mangalore pattern for class AA is 18%, and for class A it should not be more than 20%.
A. As per IS - 654 : 1992, the maximum water absorption for clay roofing tiles, mangalore pattern for class AA is 18%, and for class A it should not be more than 20%.

Explanations:

As per IS - 654 : 1992, the maximum water absorption for clay roofing tiles, mangalore pattern for class AA is 18%, and for class A it should not be more than 20%.