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Home Civil Engineering Docks and Harbours Comments

  • Question
  • 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.

  • Correct Answer
  • all of these. 


  • Docks and Harbours problems


    Search Results


    • 1. 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
    • 2. 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
    • 3. 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
    • 4. 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.
    • Discuss
    • 5. 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
    • 6. 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
    • 7. 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
    • 8. 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
    • 9. 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
    • 10. 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


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