A.at
B.on
C.in
D.above
您可能感興趣的試卷
你可能感興趣的試題
A.Distress signal
B.Urgency signal
C.Safety signal
D.None of the above
A.Belaying spike
B.Fid
C.Heaver
D.Pricker
A.at
B.for
C.in
D.on
A.a blast of from five to seven seconds' duration
B.a blast of from five to six seconds' duration
C.a blast of from four to six seconds' duration
D.a blast of from six to seven seconds' duration
A.repair
B.repaired
C.repairing
D.to repair
A.Bow line
B.Breast line
C.Spring line
D.Stern line
A.at all times
B.during evening hours
C.unless another person is present
D.during drilling operations
A.urgency or an emergency
B.the vessel's national identity signal
C.a group from the general signal code
D.a group from the medical signal code
A.I am altering my course to starboard
B.I am altering my course to port
C.I am operating astern propulsion
D.I am operating ahead propulsion
A.Manila line will usually last longer than nylon line
B.Nylon line is excellent for use in alongside towing
C.A normal safe working load will stretch nylon line 50%
D.Nylon stoppers should be used with nylon line
最新試題
I would be very much（）if you could arrange for a radio technician to come on board as soon as possible for my radar repair.
The radiotelegraphy safety messages for condition indicating distress，urgency and safety，respectively，are（）.
To safely anchor a vessel there must be sufficient scope in the anchor cable. Scope is the ratio of（）.
In battery charging rooms，ventilation should be provided（）.
Which method is used to detect rot in manila lines?（）
If passengers are on board when an abandon ship drill is carried out，they should（）.
Which measure should NOT be taken to reduce the pounding of a vessel in a head sea?（）
In the International Code of signals，a group of three letters indicates（）.
Should the vessel have no deratisation certificate at the time of her delivery，she（）be held to be unseaworthy.
Which may ignite fuel vapors?（）