Docks and Harbours Questions

• On a hydrographic map, the following feature is shown :
• Pick up the correct statement from the following:
• Pick up the correct statement from the following:
• The heaviest line is used to democrate
• Pick up the correct statement from the following:
• Soundings are required for
• Pick up the correct statement from the following:
• 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).
• The dock wall is designed as a gravity retaining wall and is tested for
• Pick up the correct statement from the following:
• Pick up the correct statement from the following:
• According to the recommendations of International Navigational Congress in 1912, the ratio of length to width at the entrance for passenger vessels is :
• The fixed mooring does not require
• If F is the fetch, the straight line distance of open water available in kilometres, the height of the wave in metres is
• 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
• Cretans :
• The wavelength is computed by Bertin's formula (where T is the period in seconds).
• The shore line survey includes :
• 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 :
• Flow of air from one place to the other is caused due to