The ship（）on a low rock was broken in two by the waves.

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The purpose of the stripping bar on an anchor windlass is to（）.

A.clean off any mud that may have accumulated on the chain
B.engage or disengage the wildcat
C.fairlead the chain from the hawse pipe to the wildcat
D.prevent the chain from fouling the wildcat

单项选择题The Pilotage-quarantine anchorage，（）between Damen Dao and Qingshan Dao，is defined by the lines（）the given points.

A.situated／connected
B.situated／connecting
C.situating／connected
D.situating／connecting

单项选择题The most doubtful and unpredictable factor in a mooring system is the（）.

A.ability of the anchors to hold in a seabed
B.anchor chain catenary length
C.variability of the fairlead
D.angle of the flukes

单项选择题The lockmaster has given you permission to tie off on the lower guide wall to wait your turn to lock through. What should you be most concerned with? （）

A.A downbound vessel
B.An upbound vessel
C.Current reaction when the lock chamber is being emptied
D.Current reaction when the lock chamber is being filled