If F is the fetch, the straight line distance of open water available in kilomet

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Question
If F is the fetch, the straight line distance of open water available in kilometres, the height of the wave in metres is
Options
A. 0.15 F
B. 0.20 F
C. 0.28 F
D. 0.34 F

Correct Answer

0.34 F

Docks and Harbours problems

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2. According to the recommendations of International Navigational Congress in 1912, the ratio of length to width at the entrance for passenger vessels is :
Options
A. 7.25 to 1
B. 7.80 to 1
C. 8.11 to 1
D. 8.44 to 1

3. Pick up the correct statement from the following:
Options
A. An artificial barrier which makes the enclosed area safe for anchorage of ships, is known as break water
B. The break water whose inside is used as a plateform for loading and unloading is called a mole
C. The length of the quay wall is governed by the length of the largest vessel likely to be berthed
D. All the above.

4. Pick up the correct statement from the following:
Options
A. The regular periodic rise and fall of the surface of the sea, is called tide.
B. The average difference in water level between high tide and low tide at a place, is called tidal range
C. The movement of water caused by the action of tide, is called a tidal current
D. all of the above.

5. The dock wall is designed as a gravity retaining wall and is tested for
Options
A. back fill pressure when the dock is empty
B. maximum water pressure from the dock without any back fill
C. the load charge transmitted to the dock by the movement of loaded vehicles or trains on the way
D. all of the above.

6. 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
Options
A. south east
B. south
C. south west
D. west
E. north west

7. Cretans :
Options
A. are the harbours established on the island south east of Greek mainland
B. are the natives of crete, an island south of Greek mainland
C. are the plants, grown in the neighbourhood of harbours
D. none of the above.

9. The shore line survey includes :
Options
A. depicting the shore line
B. depicting the prominent details on shore line
C. depicting the high water line
D. depicting the low water line
E. all the above.

10. 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 ?, the x and y. Coordinate along PQ and perpendicular to PQ from O are :
Options
A.
B.
C.
D. none of the above.

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