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MCQs

Total Questions : 242 | Page 7 of 25 pages
Question 61. The important component of a sea port is
  1.    terminal buildings
  2.    the docks
  3.    the harbour
  4.    all of these.
 Discuss Question
Answer: Option D. -> all of these.
Answer: (d).all of these.
Question 62. The low water datum for a lake is defined as the surface of the lake when it is at elevation
  1.    180.5 m above M.S.L.
  2.    190.5 m above M.S.L.
  3.    170.5 m above M.S.L.
  4.    200.0 m above M.S.L.
 Discuss Question
Answer: Option A. -> 180.5 m above M.S.L.
Answer: (a).180.5 m above M.S.L.
Question 63.

Pick up the correct statement from the following:



  1.    Spring tides are caused at new and full moon
  2.    Neap tides are caused when the moon is in her quarters
  3.    Spring tides are roughly twice the height of neap tides
  4.    Flood tides and Ebbstides are caused after 24 hours and 50 minutes corresponding to a lunar day
  5.    All of the above.
 Discuss Question
Answer: Option E. -> All of the above.


Question 64.

 

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



  1.    3.86 (`sqrt(h)` +`sqrt( h_1)`)
  2.    3.86 (`sqrt(h)`-`sqrt( h_1)`)
  3.    3.86 (`sqrt(h)`x`sqrt( h_1)`)
  4.    3.86 n (`sqrt(h)`-`sqrt( h_1)`)
 Discuss Question
Answer: Option A. -> 3.86 (`sqrt(h)` +`sqrt( h_1)`)


Question 65.


A dock:



  1.    is a marine structure for berthing of vessels for loading and unloading cargo and passengers
  2.    is an artificial basin for vessels where the variation of water in the shore does not affect the level of water
  3.    is provided with a dock gate
  4.    is provided with an arrangement to pump out water when required
  5.    all the above.
 Discuss Question
Answer: Option E. -> all the above.


Question 66.

On the sea shore structures, the water wave impact causes 


  1.    direct compressive force due to its horizontal component
  2.    shear force due to deflected vertical force
  3.    compressive force due to collapse of the wave
  4.    suction force due to water returning after striking
  5.    all of the above.
 Discuss Question
Answer: Option E. -> all of the above.


Question 67.


For large vessels, the buoys are strengthened by connecting it to a number of anchors having



  1.    one legged mooring
  2.    two legged mooring
  3.    three legged mooring
  4.    four legged mooring
  5.    all the types as above.
 Discuss Question
Answer: Option E. -> all the types as above.


Question 68.


In tropical regions,



  1.    the surface gets heated more effectively than the arctic areas
  2.    after heating, the air becomes lighter and is displaced by cool air from the polar regions
  3.    the rising tropical air flows towards the polar region in the upper strata
  4.    all of the above.
 Discuss Question
Answer: Option D. -> all of the above.


Question 69.


Pick up the correct statement from the following:



  1.    The maritime structures should be designed to withstand wave motion of air
  2.    The wind vortex results in conical depression in the air surface
  3.    A tube of air rotating at hundreds of kilometres per hour forms a tornado
  4.    all of the above.
 Discuss Question
Answer: Option D. -> all of the above.


Question 70.


The floating mooring does not require



  1.    cables
  2.    anchors
  3.    bollard
  4.    buoy.
 Discuss Question
Answer: Option C. -> bollard


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