Try to answer these 20 Docks and Harbours MCQs and check your understanding of the Docks and Harbours subject.
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A. The soundings are made with respect to the mean low water
B. The soundings which are below the datum are written in black on the map
C. The decimal point of the sounding value is at the exact position of the sounding
D. The spot heights of the features above datum are written in red on the map
A. The high water line
B. The direction of current.
C. The low water line
D. The limit of swamps
A. Depicting the high water line
B. Depicting the prominent details on shore line
C. Depicting the shore line
D. Depicting the low water line
A. Is the slow movement of surface water at sea caused by the wind
B. Is the raised line of sand, parallel to the sea coast
C. Is a current perpendicular to the shore line caused due to wind.
D. Is a current parallel to the shore, caused due to tangential component of the wind
A. All these
B. Ascertaining the areas subject to scour or silting
C. Making nautical charts for navigation
D. Obtaining detailed information for construction
A. Dredging
B. The operation of removing material from the sea or river bed is known as
C. None of these.
D. Digging
A. With fine material locally available to the waves
B. With large material locally available to the waves
C. With finest material locally available to the waves.
D. With largest material locally available to the waves
A. Port buildings are constructed for commercial purposes
B. All these
C. Facilities are provided for receiving cargo and passengers
D. Ships get shelter and protection against destructive forces due to sea waves
A. Depth contours
B. Datum
C. High and low water lines
D. Land and water areas
A. Three types of break waters are generally provided in harbours
B. All of these
C. The breakwater which can be used as a platform for loading and unloading of cargo is called a mole
D. The brick masonry retaining wall which is used for loading and unloading of cargo is called guay wall
A. Timber
B. All these
C. Granite stone
D. Steel
A. South west
B. West
C. North west
D. South
E. South east
A. Break line
B. Spring line
C. Bow line
D. Stern line
A. Velocity head
B. Pressure head
C. All of these
D. The sum of elevation
A. The Red sea is considered to be harbour
B. The Caspean sea is considered to be a big harbour
C. The Mediterranean sea is considered to be a huge harbour
D. None of these
A. The direction of the littoral drift depends upon the direction of the wave with respect to the coastline
B. All of these
C. The direction of a river opening to the sea determines the direction of no littoral drift
D. 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
A. The fathom line of 5 m depth
B. The fathom line of 10 m depth
C. The coast line attacked by the waves.
D. The swell of the sea breaking on the shore or reefs
A. Shore line
B. Light houses
C. Church spires
D. All these
A. 190.5 m above M.S.L.
B. 180.5 m above M.S.L.
C. 200.0 m above M.S.L.
D. 170.5 m above M.S.L.
A. A range line is established
B. The first and the last soundings and every tenth soundings are fixed by angular observations
C. The intermediate soundings are fixed by the time intervals
D. All these