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- Question
The low water datum for a lake is defined as the surface of the lake when it is at elevation
Options- A. 180.5 m above M.S.L.
- B. 190.5 m above M.S.L.
- C. 170.5 m above M.S.L.
- D. 200.0 m above M.S.L.
- Correct Answer
- 180.5 m above M.S.L.
- 1. Pick up the correct statement from the following:
Options- A. a harbour without any port complex, is called a refuge harbour
- B. a harbour used for fishery, is called fishery harbour
- C. the terminal building of a commercial harbour consists of an administrative block, customs clearance and ware-houses.
- D. all the above. Discuss
- 2. 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
Options- A. break water
- B. break wall
- C. groins
- D. shore wall. Discuss
- 3. Flow of air from one place to the other is caused due to
Options- A. the sum of elevation
- B. pressure head
- C. velocity head
- D. all of the above. Discuss
- 4. 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. Discuss
- 5. 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. Discuss
- 6. Pick up the correct statement from the following:
Options- A. The tides at any place occur a little less than 1 hour later, each succeeding day
- B. The difference in time in solar hours and minutes from any lunar transit to the succeeding transit, is called high water level
- C. The influence of the earth's gravity alone produces level-tidal less sea
- D. The spinning force is maximum at the equator and zero at the poles
- E. All of the above. Discuss
- 7. In a wet dock system,
Options- A. minimum required depth of water for the vessels is maintained
- B. entrance locks are provided with massive gates
- C. the locks of dock gate are operated by means of heavy bascule bridges and connected machinery
- D. the cost of construction is quite heavy
- E. all the above. Discuss
- 8. Pick up the incorrect statement from the following: In a dry dock block made of hard wood,
Options- A. spacing of the blocks is 1.35 m
- B. the lowest block is 1.8 m long 40 cm x 40 cm in cross-section
- C. the middle block is 1.6 m long 40 cm x 40 cm in crosss-section
- D. the top block is 1.2 m long 40 cm x 40 cm in cross-section
- E. none of these. Discuss
- 9. Buoys which support the cables to which vessels are attached are of
Options- A. cylindrical shape
- B. drum
- C. pear shaped
- D. spherical shape
- E. all of these. Discuss
- 10. Pick up the correct statement from the following:
Options- A. the Mediterranean sea is considered to be a huge harbour
- B. the Caspean sea is considered to be a big harbour
- C. the Red sea is considered to be harbour
- D. none of the above. Discuss
Docks and Harbours problems
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Correct Answer: all the above.
Correct Answer: groins
Correct Answer: all of the above.
Correct Answer:
Correct Answer: all the above.
Correct Answer: All of the above.
Correct Answer: all the above.
Correct Answer: none of these.
Correct Answer: all of these.
Correct Answer: the Mediterranean sea is considered to be a huge harbour
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