Docks and Harbours problems
- 1. The smoothened surface of the front face of the guay walls, is known as fending which is made of
Options- A. granite stone
- B. timber
- C. steel
- D. all the above. Discuss
Correct Answer: all the above.
- 2. Due to the impact of water wave on a sea shore structure
Options- A. hydrostatic pressure coupled with a strong momentary impact is caused
- B. vibrations are subjected
- C. internal pressure is developed
- D. weakens the foundation
- E. all of the above. Discuss
Correct Answer: all of the above.
- 3. Pick up the correct statement from the following:
Options- A. The operation of removing material from the sea or river bed is known as
- B. Dredging
- C. Digging
- D. None of these. Discuss
Correct Answer: The operation of removing material from the sea or river bed is known as
- 4. The beach is built:
Options- A. with largest material locally available to the waves
- B. with large material locally available to the waves
- C. with fine material locally available to the waves
- D. with finest material locally available to the waves. Discuss
Correct Answer: with largest material locally available to the waves
- 5. Surf zone is :
Options- A. the fathom line of 10 m depth
- B. the fathom line of 5 m depth
- C. the swell of the sea breaking on the shore or reefs
- D. the coast line attacked by the waves. Discuss
Correct Answer: the swell of the sea breaking on the shore or reefs
- 6. Littoral drift
Options- A. is the raised line of sand, parallel to the sea coast
- B. is the slow movement of surface water at sea caused by the wind
- C. is a current parallel to the shore, caused due to tangential component of the wind
- D. is a current perpendicular to the shore line caused due to wind. Discuss
Correct Answer: is a current parallel to the shore, caused due to tangential component of the wind
- 7. A harbour is a place where
Options- A. ships get shelter and protection against destructive forces due to sea waves
- B. facilities are provided for receiving cargo and passengers
- C. port buildings are constructed for commercial purposes
- D. all the above. Discuss
Correct Answer: all the above.
- 8. Pick up the incorrect statement from the following:
Options- A. As a wave of sea water approaches the coast line, it is generally accompanied by a drift of water in the direction of wave advance
- B. The on-shore wind helps to produce wave action as well as rise of M.S.L.
- C. A falling hydraulic gradient occurs in the direction of the wave
- D. The wave while receding carries finer particles out to deep water. Discuss
Correct Answer: A falling hydraulic gradient occurs in the direction of the wave
- 9. Depth of borings for soil investigation, is generally kept below low water level
Options- A. 30 m
- B. 35 m
- C. 45 m
- D. 40 m Discuss
Correct Answer: 45 m
- 10. A roadstead :
Options- A. is a protected area of water where boats can move safely
- B. is the end of the road at the harbour
- C. may be protected by break water walls
- D. none of these. Discuss
Correct Answer: is a protected area of water where boats can move safely
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