Weep holes are provided in canal lining to _____________________?
Correct answer: D. Have drainage facility
- A. improve strength of lining
- B. Give additional anchorage against sliding
- C. Provide water into branch canals
- D. Have drainage facility
Explanation
Weep holes allow water trapped behind canal lining to escape, reducing pore-water pressure and preventing damage to the lining. They are drainage outlets, not water supplies for branch canals or primary anchorage devices.
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