the chocks at the bow of a towed vessel
the most forward，centermost point of a towed vessel such as a sturdy bow rail
the mast of a towed sailboat
a secure fitting near the bow of the towed vessel
第1题：
Which factor(s) might indicate that a towline should be removed from service?
A.Visible damage to the towline，including fishhooks
B.Measurements showing a decrease in diameter
C.A surface condition of corrosion and discoloration
D.All of the above
第2题：
When rigging a stage，the standing part should be fastened to the horns of a stage with which of the following hitches ________．
A.Clove hitch
B.Timber hitch
C.Marlinespike hitch
D.Double blackwall hitch
第3题：
When should you conduct a visual inspection of your towline?
A.Whenever its serviceability is in doubt
B.In accordance with the manufacturer's recommendation
C.At least once a month
D.All of the above
第4题：
frames to which the tank top and bottom shell are fastened on a double bottomed ship
transverse members of the ships frame which support the decks
longitudinal beams in the extreme bottom of a ship from which the ship's ribs start
longitudinal angle bars fastened to a surface for strength
第5题：
Lower gangway into place and （）safety net.
第6题：
During the towing of a survival craft，a lookout should be on station to ______．
A.release the towline in an emergency
B.help the helmsman steer
C.look for food and water
D.check the water level in the bilge
第7题：
When using slings，cargo handlers should take all the following precautions except ______．
A.Ensure that slings are securely fastened around the load
B.Avoid careless winch operations，especially when handling fragile cargo
C.Exercise care when using hooks，crowbars，and similar tools
D.Keep the loads as close to the rail or deck as possible
第8题：
In towing，chocks are used to ______.
A.protect the towline from chafing
B.secure the end of the towline on the tug
C.stop off the towline while retrieving it
D.absorb shock loading on the towline
第9题：
frames to which the tank top and bottom shell are fastened on a double bottomed ship
transverse members of the ships frame which support the decks
longitudinal beams in the extreme bottom of a ship from which the ships ribs start
longitudinal angle bars fastened to a surface for strength
第10题：
release the towline in an emergency
help the helmsman steer
look for food and water
check the water level in the bilge