search
arrow-left Previous
Next arrow-right
Q: The water absorption (expressed in percentage) for burnt clay perforated bricks should not be more than ...........
  • A. 5
  • B. 15
  • C. 25
  • D. 35
Correct Answer: Option B - Burnt clay perforated bricks (IS 2222), contains cylindrical holes throughout their thickness, have high compressive strength and less water absorption. These bricks are light in weight, they require less quantity of clay and drying and burning of these bricks are easy and economical. • Compressive strength should not be less than 7.0 N/mm² • Water absorption should not be more than 15% • Warpage should not exceeds 3%
B. Burnt clay perforated bricks (IS 2222), contains cylindrical holes throughout their thickness, have high compressive strength and less water absorption. These bricks are light in weight, they require less quantity of clay and drying and burning of these bricks are easy and economical. • Compressive strength should not be less than 7.0 N/mm² • Water absorption should not be more than 15% • Warpage should not exceeds 3%

Explanations:

Burnt clay perforated bricks (IS 2222), contains cylindrical holes throughout their thickness, have high compressive strength and less water absorption. These bricks are light in weight, they require less quantity of clay and drying and burning of these bricks are easy and economical. • Compressive strength should not be less than 7.0 N/mm² • Water absorption should not be more than 15% • Warpage should not exceeds 3%