Q. P and Q are two stations on the shore line at distance d. If the angle between Q and the boat O and P is a and the angle between P and Q at boat O is β, the x and y. Coordinate along PQ and perpendicular to PQ from O are :

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Q. The horizontal angles from the boat between A and B and B and C, the stations on the shore are respectively θ1 and θ2. The distances AB = L1 and BC = L2. For calculating the angle α2 at C between the boat and station B is obtained by using the following formula: where (β is horizontal angle between A and C at B).

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Q. If h and h1 are the heights of a light house and the observer in a ship in metres above M S L then the horizontal distance from the ship to the light house in kilometres is

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Q. Pick up the correct statement from the following:

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Q. Pick up the correct statement from the following:

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Q. 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

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Q. 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

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

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Q. 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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Q. Pick up the correct statement from the following:

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Q. Littoral drift

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Q. The heaviest line is used to democrate

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Q. Which one of the following statements is correct?

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Q. The dock wall is designed as a gravity retaining wall and is tested for

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Q. The shape of docks and basins is generally kept

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Q. Surf zone is :

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Q. Which one of the following lines is used for tying a ship with a dock

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Q. Soundings are required for

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Q. Pick up the correct statement from the following:

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Q. For location of soundings a range and one angle from the shore involves the following operations. Which one is correct ?

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