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- Question
According to the recommendations of International Navigational Congress in 1912, the ratio of length to width at the entrance for cargo vessels is
Options- A. 5.5 and 6.0 to 1
- B. 6.2 and 6.8 to 1
- C. 7.4 and 7.8 to 1
- D. 8.2 and 8.5 to 1
- Correct Answer
- 7.4 and 7.8 to 1
- 1. For location of soundings a range and one angle from the shore involves the following operations. Which one is correct?
Options- A. A range line is established
- B. The first and the last soundings and every tenth soundings are fixed by angular observations
- C. The intermediate soundings are fixed by the time intervals
- D. All the above. Discuss
- 2. 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
Options- A. 3.86 (h + h1)
- B. 3.86 (h - h1)
- C. 3.86 (h x h1)
- D. 3.86 ? (h + h1) Discuss
- 3. Which one of the following land marks on the coast line must be depicted on hydrographic maps?
Options- A. shore line
- B. light houses
- C. church spires
- D. all the above. Discuss
- 4. Which one of the following lines is used for tying a ship with a dock
Options- A. bow line
- B. stern line
- C. spring line
- D. break line
- E. all of these. Discuss
- 5. Which one of the following statements is not relevant to hydrographic survey :
Options- A. establishment of a chain of bench marks near the shore line
- B. establishment of horizontal control points on the shore
- C. determination of the sea bed profile
- D. depicting the irregularities in the shore line, islands and projecting rocks
- E. none of these. Discuss
- 6. The width of the entrances of the harbours is restricted to
Options- A. 100 m
- B. 125 m
- C. 150 m
- D. 180 m Discuss
- 7. A lead line or sounding line
Options- A. is stretched thoroughly when wet before it is graduated
- B. should be soaked in water for about one hour prior to taking soundings
- C. is adjusted at regular interval
- D. is generally used for depths exceeding 6 m
- E. all the above. Discuss
- 8. Which one of the following statements is correct?
Options- A. The soundings are made with respect to the mean low water
- B. The soundings which are below the datum are written in black on the map
- C. The spot heights of the features above datum are written in red on the map
- D. The decimal point of the sounding value is at the exact position of the sounding
- E. All the above. Discuss
- 9. Pick up the correct statement function following:
Options- A. The coarse material which has a smaller angle of repose, causes a steeper beach slope
- B. The coarse material which has a greater angle of repose, causes a steeper beach slope
- C. The flattening out of the beach is caused due to the movement of small and uniform particles leeward.
- D. both (b) and (c). Discuss
- 10. The shape of docks and basins is generally kept
Options- A. rectangular ways
- B. diamond shape guays
- C. inclined gauys
- D. all of these. Discuss
Docks and Harbours problems
Search Results
Correct Answer: All the above.
Correct Answer: 3.86 (h + h1)
Correct Answer: all the above.
Correct Answer: all of these.
Correct Answer: none of these.
Correct Answer: 180 m
Correct Answer: all the above.
Correct Answer: All the above.
Correct Answer: both (b) and (c).
Correct Answer: all of these.
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