eddies under the bar
swift current under the bar causing loss of control
cross-currents pushing the tow away from the bar
cross-currents pushing the tow into the bar
第1题：
When steering by autopilot, how often should_______steering be checked?
A.every day
B.when time allows
C.At least once a watch
D.No checking is necessary
第2题：
A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started?
A.When the towing vessel enters the fog
B.When the drilling rig enters the fog
C.When the towing vessel can no longer be seen from the rig
D.Immediately
第3题：
We use ________ when proceeding in dense fog
A.auto-steering
B.gyro-pilot
C.rudder gear
D.hand-steering
第4题：
You are in the process of adding a barge to your tow．A line run from your power capstan and around timber heads on your tow is made fast on the new barge so that it can be pulled into position．This line is called a ______．
A.Scissors wire
B.Capstan line
C.Spring line
D.Fore and aft line
第5题：
A tug may be in danger of tripping when ______.
A.towed sideways by an overwhelming force on the towline
B.her tow moves parallel to and forward on either side of the tug
C.the tow is no longer directly astern but moves up on her quarter
D.All of the above
第6题：
A.sands...was
B.sand...were
C.sand...was
D.sands...were
第7题：
A tow that is properly aligned to pass through a narrow opening between two bridge piers is " ______".
A.on course
B.headed fair
C.holding on
D.in shape
第8题：
Passage Three
Did you know that a turtle can lay twelve eggs in one minute? A large sea turtle lays around 150 eggs at a time. She lays all these eggs in just a few minutes.
Large sea turtles live in the warm seas of the world. Except for when they lay their eggs, they spend their whole lives in water. When it is time to lay their eggs, the females swim to land. They usually return to the place where they themselves were born. How they find their way back there is a mystery.
When they reach shore, the big, heavy turtles crawl slowly up to the high water mark. Using their flippers, they pull themselves along the sand. They struggle like mountain climbers to attain their goal. When they finally reach dry sand, they rest before beginning the difficult task of laying eggs.
The turtles lay the eggs in deep holes and cover them with warm sand. The sand protects the eggs from harm. Then the females leave them. After a few weeks, if you happened to be walking along the beach, you might see the sand begin to shake in one spot. Then you would see tidy black balls coming out of the sand. The tidy heads of baby turtles!
Baby turtles have a build-in sense of direction. As soon as they are hatched, they head for the water. Once the babies swim out to sea, they don't touch shore again until it is time for them to lay their own eggs.
41. The first sentence lets us know that this passage is about ______.
A. turtles
B. oceans
C. time
D. eggs
第9题：
When steering by hand，which of the following may be a functional input to the steering gear as a result of turning the wheel ________．
A.Non-follow-up
B.Rudder adjustment
C.Weather adjustment
D.All the above may be activated
第10题：
apply the relevant Steering and Sailing Rules as a power-driven vessel
apply the relevant Steering and Sailing Rules as a Sailing vessel
apply the relevant Steering and Sailing Rules as a vessel not under command
apply the relevant Steering and Sailing Rules as a vessel engaged in a towing operation