According to the recommendations of International Navigational Congress in 1912, the ratio of length to width at the entrance for cargo vessels is

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Buoys which support the cables to which vessels are attached are of

The beach is built:

Flow of air from one place to the other is caused due to

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A low wall built out into the sea more or less perpendicular to the coast line, to resist the travel of sand and shingle along a beach, is called

At a place the shore line is along North West-South East. The wind is blowing from the north. The littoral drift will be along

If F is the fetch, the straight line distance of open water available in kilometres, the height of the wave in metres is

According to the recommendations of International Navigational Congress in 1912, the ratio of length to width at the entrance for passenger vessels is :

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Littoral drift

The heaviest line is used to democrate

Which one of the following statements is correct?

Pick up the correct statement function following:

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Depth of borings for soil investigation, is generally kept below low water level

Which one of the following land marks on the coast line must be depicted on hydrographic maps ?

A lead line or sounding line