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MCQs

Total Questions : 242 | Page 5 of 25 pages
Question 41.
The wavelength is computed by Bertin's formula (where T is the period in seconds)



  1.    `L = (T)/(2 pi) g`
  2.    `L = (T^2)/(2 pi) g`
  3.    `L = (2T)/( pi) g`
  4.    `L = (2T^2)/( pi) g`
 Discuss Question
Answer: Option B. -> `L = (T^2)/(2 pi) g`


Question 42.

If F is the fetch, the straight line distance of open water available in kilometres, the height of the wave in metres is


  1.    `0.15 sqrt(F)`
  2.    `0.20 sqrt(F)`
  3.    `0.28 sqrt(F)`
  4.    `0.34 sqrt(F)`
 Discuss Question
Answer: Option D. -> `0.34 sqrt(F)`


Question 43. The wavelength is computed by Bertin's formula (where T is the period in seconds).The Wavelength Is Computed By Bertin's Formula (where T Is T...
  1.    A
  2.    B
  3.    C
  4.    D
 Discuss Question
Answer: Option B. -> B
Answer: (b).B
Question 44. The horizontal angles from the boat between A and B and B and C, the stations on the shore are respectively θ1 and θ2. The distances AB = L1 and BC = L2. For calculating the angle α2 at C between the boat and station B is obtained by using the following formula: where (β is horizontal angle between A and C at B).The Horizontal Angles From The Boat Between A And B And B An...
  1.    A
  2.    B
  3.    C
  4.    D
 Discuss Question
Answer: Option D. -> D
Answer: (d).D
Question 45. 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 β, the x and y. Coordinate along PQ and perpendicular to PQ from O are :P And Q Are Two Stations On The Shore Line At Distance D. If...
  1.    A
  2.    B
  3.    C
  4.    D
 Discuss Question
Answer: Option A. -> A
Answer: (a).A
Question 46. 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 isIf H And H1 Are The Heights Of A Light House And The Observe...
  1.    A
  2.    B
  3.    C
  4.    D
 Discuss Question
Answer: Option A. -> A
Answer: (a).A
Question 47. Pick up the correct statement from the following:Pick Up The Correct Statement From The Following:
  1.    For nautical purposes, low water level is generally referred to by the navigators
  2.    The depth of the bed of the sea from the surface of water is called sounding
  3.    The contour lines on the bed of a water body are called fathoms
  4.    All the above.
 Discuss Question
Answer: Option D. -> All the above.
Answer: (d).All the above.
Question 48. Pick up the correct statement from the following:
  1.    The direction of the littoral drift depends upon the direction of the wave with respect to the coastline
  2.    The direction of a river opening to the sea determines the direction of no littoral drift
  3.    Harbour in the path of littoral drift is not constructed to avoid a build up of sand on one side and erosion on the other
  4.    all of the above.
 Discuss Question
Answer: Option D. -> all of the above.
Answer: (d).all of the above.
Question 49. 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
  1.    break water
  2.    break wall
  3.    groins
  4.    shore wall.
 Discuss Question
Answer: Option C. -> groins
Answer: (c).groins
Question 50. 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
  1.    south east
  2.    south
  3.    south west
  4.    west
 Discuss Question
Answer: Option A. -> south east
Answer: (a).south east

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