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Q: As recommended by concrete association of India the face thickness of hollow concrete blocks should not be more than
  • A. 4 cm
  • B. 2 cm
  • C. 5 cm
  • D. 10 cm
Correct Answer: Option C - As for as recommendation for the hollow block by the concrete association of India is concerned, the face thickness of the concrete block should not be 5cm and the net area should be at least 55% to 60% of the gross area.
C. As for as recommendation for the hollow block by the concrete association of India is concerned, the face thickness of the concrete block should not be 5cm and the net area should be at least 55% to 60% of the gross area.

Explanations:

As for as recommendation for the hollow block by the concrete association of India is concerned, the face thickness of the concrete block should not be 5cm and the net area should be at least 55% to 60% of the gross area.