Docks and Harbor Engineering
If H is the height of the wave expected, then the height of the breakwater is generally taken as

1.2 H to 1.25 H above the datum
1.2 H to 1.25 H above the low water level
1.2 H to 1.25 H above the mean sea level
1.2 H to 1.25 H above the high water level

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Docks and Harbor Engineering
Assertion A : Depth and width required at the entrance to a harbour are more than those required in the channel.Reason R : The entrance to a harbour is usually more exposed to waves as compared to the harbour itself.Select your answer based on the coding system given below:

A is false but R is true.
A is true but R is false.
Both A and R are true but R is not the correct explanation of
Both A and R are true and R is the correct explanation of

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Docks and Harbor Engineering
Consider the following statements.(i) Fender is the cushion provided on the face of the jetty for ships to come in contact,(ii) Slip is the space of water area between two adjacent piers where ships are berthed,(iii) Pier head is a structure constructed near the tip of a break water near the harbour entrance. Of the statements

(i) and (ii) are correct
(i), (ii) and (iii) are correct
(i) and (iii) are correct
(ii) and (iii) are correct

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