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Whenever Workmen Have to Excavate in Trenches in Soil, Soft

Question 11

Multiple Choice

Whenever workmen have to excavate in trenches in soil, soft rock or hard soil exceeding ............. m in depth, the trenches should be securely shored and timbered.


A) 2
B) 1.5
C) 3
D) 2.1

Correct Answer:

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