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Docks and Harbor Engineering

Docks and Harbor Engineering
As per Berlin's formula, the length of wave in meters is given by(Where ’t’ is the period in seconds for two successive waves to pass the same section.)

1.9412
1.5612
1.3412
1.7412

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Docks and Harbor Engineering
Which of the following structures protects the shore by trapping of littoral drift?

revetments
moles
groynes
sea walls

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

2.0 L
4.0 L
1 L
1.5 L

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Docks and Harbor Engineering
For designing the dock, the proportion of ship load assumed to be borne by keel blocks is

43898
43967
43959
43906

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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

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

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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 datum
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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