Docks And Harbours MCQs

Question 1

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

Accepted Answer

0.34 -4-P7.

Answer

0.15 -/Y

Answer

0.20 T"

Answer

0.28 4-.F

Question 2

On the sea shore structures, the water wave impact causes

Accepted Answer

all of the above.

Answer

direct compressive force due to its horizontal component

Answer

shear force due to deflected vertical force

Answer

compressive force due to collapse of the wave

Question 3

Due to the impact of water wave on a sea shore structure

Accepted Answer

all of the above.

Answer

hydrostatic pressure coupled with a strong momentary impact is caused

Answer

vibrations are subjected

Answer

internal pressure is developed

Question 4

A harbour is a place where

Accepted Answer

all the above.

Answer

ships get shelter and protection against destructive forces due to sea waves

Answer

facilities are provided for receiving cargo and passengers

Answer

port buildings are constructed for commercial purposes

Question 5

A roadstead

Accepted Answer

is a protected area of water where boats can move safely

Answer

is the end of the road at the harbor

Answer

may be protected by break water walls

Answer

none of these.

Question 6

The width of the entrances of the harbours is restricted to

Accepted Answer

180 m.

Answer

100 m

Answer

125 m

Answer

150 m

Question 7

In a wet dock system

Accepted Answer

all the above.

Answer

minimum required depth of water for the vessels is maintained

Answer

entrance locks are provided with massive gates

Answer

the locks of dock gate are operated by means of heavy bascule bridges and connected machinery

Question 8

The shape of docks and basins is generally kept

Accepted Answer

all of these.

Answer

rectangular ways

Answer

diamond shape gauys

Answer

inclined gauys

Question 9

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

Accepted Answer

all of the above.

Answer

back fill pressure when the dock is empty

Answer

maximum water pressure from the dock without any back fill

Answer

the load charge transmitted to the dock by the movement of loaded vehicles or trains on the way