MCQ Study Materials on Docks and Harbour Engineering - Set 04 - ObjectiveBooks

# Practice Test: Question Set - 04

1. If F is the fetch, the straight line distance of open water available in kilometres, the height of the wave in meters is
(A) 0.15 √F
(B) 0.20 √F
(C) 0.28 √F
(D) 0.34 √F

2. Minimum width of ship clearance shall be
(A) B or 30 m
(B) 1.5 B or 50 m
(C) 1.5 B
(D) 50 m
Where ‘B’ is beam of the design vessel

3. Which one of the following statements is correct?
(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 spot heights of the features above datum are written in red on the map
(D) All the above

4. Which of the following are repair docks?
(A) Marine railways, dry docks, floating docks, wet docks
(B) Dry docks, wet docks, floating docks, lift docks
(C) Wet docks, floating docks, lift docks, marine railways
(D) Wet docks, lift docks, marine railways, dry docks

5. The smoothened surface of the front face of the guay walls, is known as fending which is made of
(A) Granite stone
(B) Timber
(C) Steel
(D) All the above

6. Assertion A: Depth and width required at the entrance to a harbour are more than those required in the channel.
Reason R: The entrance to a harbour is usually more exposed to waves as compared to the harbour itself.
Select your answer based on the coding system given below:
(A) Both A and R is true and R is the correct explanation of A
(B) Both A and R is true but R is not the correct explanation of A
(C) A is true but R is false
(D) A is false but R is true

7. Pick up the incorrect statement from the following: In a dry dock block made of hard wood,
(A) Spacing of the blocks is 1.35 m
(B) The lowest block is 1.8 m long 40 cm × 40 cm in cross-section
(C) The middle block is 1.6 m long 40 cm × 40 cm in cross-section
(D) None of these

8. Which one of the following lines is used for tying a ship with a dock?
(A) Bow line
(B) Stern line
(C) Spring line
(D) All of these

9. In a wet dock system,
(A) Minimum required depth of water for the vessels is maintained
(B) Entrance locks are provided with massive gates
(C) The cost of construction is quite heavy
(D) All the above

10. Assertion A: Marine structures are made specially bulky and strong.
Reason R: Sea insects result in undermining of the hardest and the soundest building material
Select your answer based on the coding system given below:
(A) Both A and R is true and R is the correct explanation of A
(B) Both A and R is true but R is not the correct explanation of A
(C) A is true but R is false
(D) A is false but R is true

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