Q.1

A dock:

  • is a marine structure for berthing of vessels for loading and unloading cargo and passengers
  • is an artificial basin for vessels where the variation of water in the shore does not affect the level of water
  • is provided with a dock gate
  • is provided with an arrangement to pump out water when required
  • all the above.
Q.2

The shore line survey includes :

  • depicting the shore line
  • depicting the prominent details on shore line
  • depicting the high water line
  • depicting the low water line
  • all the above.
Q.3

In tropical regions,

  • the surface gets heated more effectively than the arctic areas
  • after heating, the air becomes lighter and is displaced by cool air from the polar regions
  • the rising tropical air flows towards the polar region in the upper strata
  • all of the above.
Q.4

Location of soundings by range and one angle is done by the surveyor

  • on the shore
  • on the boat
  • on the shore or on the boat
  • none of the above.
Q.5

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

  • one legged mooring
  • two legged mooring
  • three legged mooring
  • four legged mooring
  • all the types as above.
Q.6

The variation of atmospheric potential is caused due to :

  • difference in temperature over the surface of the earth
  • change in the density of air
  • both (a) and (b)
  • neither (a) nor (b).
Q.7

Location of soundings by two angles from the shore requires establishing

  • one range line parallel to shore
  • one range line perpendicular to shore
  • two range lines mutually perpendicular
  • no range line.
Q.8

On the sea shore structures, the water wave impact causes

  • direct compressive force due to its horizontal component
  • shear force due to deflected vertical force
  • compressive force due to collapse of the wave
  • suction force due to water returning after striking
  • all of the above.
Q.9

The floating mooring does not require

  • cables
  • anchors
  • bollard
  • buoy.
Q.10

Pick up the correct statement from the following:

  • Spring tides are caused at new and full moon
  • Neap tides are caused when the moon is in her quarters
  • Spring tides are roughly twice the height of neap tides
  • Flood tides and Ebbstides are caused after 24 hours and 50 minutes corresponding to a lunar day
  • All of the above.
Q.11

Pick up the correct statement from the following:

  • The maritime structures should be designed to withstand wave motion of air
  • The wind vortex results in conical depression in the air surface
  • A tube of air rotating at hundreds of kilometres per hour forms a tornado
  • all of the above.
Q.12

The dock wall is designed as a gravity retaining wall and is tested for

  • back fill pressure when the dock is empty
  • maximum water pressure from the dock without any back fill
  • the load charge transmitted to the dock by the movement of loaded vehicles or trains on the way
  • all of the above.
Q.13

Pick up the correct statement from the following:

  • For nautical purposes, low water level is generally referred to by the navigators
  • The depth of the bed of the sea from the surface of water is called sounding
  • The contour lines on the bed of a water body are called fathoms
  • All the above.
Q.14

The shape of docks and basins is generally kept

  • rectangular ways
  • diamond shape quays
  • inclined quays
  • all of these.
Q.15

Pick up the correct statement from the following:

  • The direction of the littoral drift depends upon the direction of the wave with respect to the coastline
  • The direction of a river opening to the sea determines the direction of no littoral drift
  • 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
  • all of the above.
Q.16

Surf zone is :

  • the fathom line of 10 m depth
  • the fathom line of 5 m depth
  • the swell of the sea breaking on the shore or reefs
  • the coast line attacked by the waves.
Q.17

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

  • break water
  • break wall
  • groins
  • shore wall.
Q.18

Which one of the following lines is used for tying a ship with a dock

  • bow line
  • stern line
  • spring line
  • break line
  • all of these.
Q.19

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

  • south east
  • south
  • south west
  • west
  • north west
Q.20

Soundings are required for

  • making nautical charts for navigation
  • ascertaining the areas subject to scour or silting
  • obtaining detailed information for construction
  • all the above.
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