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

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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

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

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

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Docks and Harbor Engineering
Assertion A : Basin walls have to be of much grater height than dock walls.Reason R : Tidal basins are subject to fluctuations of levels due to tidal variations.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 and R is the correct explanation of A.
Both A and R are true but R is not correct explanation of A.

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