Provision of sufficient freeboard eliminates ______________

Question

Provision of sufficient freeboard eliminates _______________
i. Over-topping failure
ii. Erosion of U/s face
iii. Erosion of D/s face
iv. Cracking due to frost action
v. Gully formation
Which of the following is/are correct?

Options:

A . i and v

B . ii and iii

C . iv and v

D . i and iv

Answer: Option D
Answer: (d).i and iv

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