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 : Marine structures are made specially bulky and strong.Reason R : Sea insects result in undermining of the hardest and the soundest building material. Select your answer based on the coding system given below:

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

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Docks and Harbor Engineering
Consider the following statements in regard to Beaufort scale for wind speeds,
(i) The Beaufort number ranges from 1 to 12.
(ii) Higher Beaufort number indicates higher speed of wind,
(iii) Beaufort number for calm is smallest and for hurricane is highest of these statements

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

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