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
Which of the following are repair docks ?

wet docks, lift docks, marine railways, dry docks
dry docks, wet docks, floating docks, lift docks
wet docks, floating docks, lift docks, marine railways
marine railways, dry docks, floating docks, wet docks

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