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Docks and Harbor Engineering

Docks and Harbor Engineering
The minimum diameter of turning besin, where ships turn by going ahead and without tug assistance should be

1.5 L
2.0 L
4.0 L
1 L

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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 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
1.2 H to 1.25 H above the datum

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Docks and Harbor Engineering
If ‘Hs’ is the significant wave height, then the average wave height and highest wave height respectively are given by

1.27 Hs and 1.87 Hs
0.6 Hs and 1.67 Hs
0.6 Hs and 1.87 Hs
1.27 Hs and 1.67 Hs

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Docks and Harbor Engineering
A ship strikes the berth generally at an angle

30° with the face of the dock
45° with the face of the dock
10° with the face of the dock
90° with the face of the dock

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Docks and Harbor Engineering
Dead weight tonnage of a ship(i) varies with latitude and season(ii) is more than displacement tonnage(iii) is the difference between displacement load and displacement light Of these statements

(i) and (ii) are correct
(i) and (iii) are correct
Only (iii) is correct
(ii) and (iii) are correct

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Docks and Harbor Engineering
At a given port, the fetch is 400 nautical miles, the maximum height of storm wave will be

8.169 m
6.8 m
9.144 m
2.073 m

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