Question

In economical digging, sectional area of excavation is _______ sectional area of banking.
1. equal to
2. less than
3. greater than
4. None of the above

Answer 1

Correct Answer - Option 1 : equal to

Explanation:

For a channel section the depth of cutting is such that the quantity of excavation or cutting is equal to the earth filling required for making the banks, then depth of cutting is known as balancing depth or most economical depth of cutting.

Balancing canal depth comes when the canal is in partially embankment and partially in cutting. It is the depth of the canal (H) which gives equal amount of filling (i.e. earth required for formation of Banks) and cutting (i.e. earth from digging).