A.on her beam
B.on her stern
C.on her bow
D.broad on the quarter
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A.soft clay
B.hard mud
C.very soft mud
D.sand
A.in many places a counter current flows in opposition to the main current close to the bank
B.current can vary with depth of water and large deep draught ships can experience different current effects at differing parts of the hull tend to turn to the wind
C.as speed is reduced，the increased proportion of the ship's vector which is attributable to current will set the ship close to obstructions
D.when close to the berth in a head current，there is a danger that flow inshore of the ship becomes restricted and the ship is subject to interactive forces
A.the pivot point and point of influence of wind in are not in alignment
B.the pivot point and point of influence of wind in are in alignment
C.the point of influence of wind moves depending on the profile of the ship presented to the wind
D.the ship steams slowly in rough seas
A.A safety line attached to a man working over the side
B.Used to measure water depth
C.Used to slow the headway of a barge
D.Used to measure the overhead height of a bridge
A.great circle
B.small circle
C.large circle
D.general circle
最新試題
You are anchoring in 16 fathoms of water．On a small to medium size vessel，the（）.
Pilotage in this country is（）.
When anchoring，good practice requires 5 to 7 fathoms of chain for each fathom of depth. In deep water you should use（）.
A ship will always want to settle into a position where（）.
Which safety check（s）should be made before letting go the anchor（）.
When turning a ship in restricted space with a strong wind，it is normally best to（）.
Which would you NOT use to report the amount of anchor chain out? Three shots（）.
A（）is the intersection of the surface of a sphere and a plane passing through the center of the sphere.
When weighing anchor in a rough sea，how would you avoid risk of damaging the bow plating （）.
When entering the bridge，pilots of the Suez Canal want the master of the ship to fill in （）.