航海英语锚泊与靠离泊作业章节练习(2018.03.22)

单项选择题
The centre of lateral resistance is（）.
A.the center of the hydrodynamic forces acting on the underwater hull to resist the effect of the wind
B.the point of influence of wind on the ship
C.the pivot point
D.the point on the ship's above-water structure upon which the whole force of the wind can be considered an act
单项选择题
What effect is achieved from soaking an anchor（）．
A.It allows the bottom soil to consolidate
B.It gives the palms time to trip the anchor
C.It stabilizes the mooring system
D.It lubricates the anchor for better tripping
单项选择题
Vessels lying afloat at buoys for more than 24 hours should use anchor chain for（）and insurance wire for（）.
A.bow mooring／stern line
B.forward spring／after spring
C.forward breast rope／forward spring
D.slip rope／stern line
单项选择题
Which safety check（s）should be made before letting go the anchor（）.
A.See that the anchor is clear of obstructions
B.See that the chain is all clear
C.See that the wildcat is disengaged
D.All of the above
单项选择题
You are mooring to a buoy．You should approach the buoy with the current from（）.
A.ahead
B.broad on the bow
C.abeam
D.astern
单项选择题
Owing to the big draught of the ship，she has to go alongside by the time of（）.
A.spring tide
B.flood tide
C.ebb tide
D.slack water
单项选择题
When weighing anchor in a rough sea，how would you avoid risk of damaging the bow plating （）.
A.Heave it home as fast as you can
B.Heave it home intermittently，between swells
C.Leave the anchor under foot，until the vessel may be brought before the Sea
D.Wait for a calm spot between seas，then house it
单项选择题
The safest device used to secure the end of the pendant wire when it is initially passed to the anchor handling vessel is a（）.
A.pelican hook
B.hydraulic deck stopper
C.connecting link
D.shackle
单项选择题
Sometimes lights are（）by fog，haze，dust，smoke，or precipitation which may be present at the light，or between the light and the observer，and which is possibly unknown by the observer.
A.obscured
B.darkened
C.greyed
D.delighted
单项选择题
Your vessel has anchored in a channel known to have strong tidal currents. To check your position you take a round of bearings，one of which is a range in line. One hour later the bearing on the lights in range opens up. This indicates the ship is（）.
A.swinging
B.dredging her anchor
C.taking bearings of the lights
D.taking distances of the lights