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Q: Hollow blocks have one or more large holes or cavities which pass through the block and have solid material between ............ percent of the total volume of block.
  • A. 45 to 70
  • B. 60 to 80
  • C. 40 to 65
  • D. 50 to 75
Correct Answer: Option D - As per IS 2185 : 2005, Cl-3.7  Hollow block– A block having one or more large holes or cavities which either pass through the block (open cavity) or do not effectively pass through the block (closed cavity) and having the solid material between 50 and 75 percent of the total volume of the block calculated from the over all dimension.
D. As per IS 2185 : 2005, Cl-3.7  Hollow block– A block having one or more large holes or cavities which either pass through the block (open cavity) or do not effectively pass through the block (closed cavity) and having the solid material between 50 and 75 percent of the total volume of the block calculated from the over all dimension.

Explanations:

As per IS 2185 : 2005, Cl-3.7  Hollow block– A block having one or more large holes or cavities which either pass through the block (open cavity) or do not effectively pass through the block (closed cavity) and having the solid material between 50 and 75 percent of the total volume of the block calculated from the over all dimension.