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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