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Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 25 (Q.No. 46)
UPSC Civil Service Exam Questions
46.
Why are weep holes provided at the back of retaining walls ?
To reduce the active earth pressure on the walls
To reduce the build - up of hydrostatic pressure
To provide better compaction
To increase the passive earth pressure
Answer: Option
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