單項(xiàng)選擇題The condition where a ship on the end of a tow line is riding a wave crest at the same time as its tug rides a wave crest is known as riding in（）.

A.synchronism
B.harmony
C.check
D.step


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1.單項(xiàng)選擇題The catenary（）.

A.acts as a reserve length of towing hawser when the tug applies more power，and it dampens the surge effect of the tow
B.gives an approximation of the amount of strain on the towing hawser
C.is the dip in the towing hawser between the tug and the tow
D.All of the above

2.單項(xiàng)選擇題The biggest problem you generally encounter while towing a single tow astern is（）.

A.the catenary dragging on the bottom
B.swamping of the tow
C.the tow tending to dive
D.yaw

3.單項(xiàng)選擇題The best method to secure a tow line to a cleat is to（）.

A.take a turn around the cleat，then figure-eights，and a half-hitch
B.make figure-eights，followed by a half-hitch，then a figure-eight knot
C.take a turn，a half turn，and a figure-eight
D.take several turns around the cleat only

4.單項(xiàng)選擇題One major advantage of the round turn maneuver in a man overboard situation is that it（）.

A.is the fastest method
B.is easy for a single-screw vessel to perform
C.requires the least shiphandling skills to perform
D.can be used in reduced visibility

5.單項(xiàng)選擇題One advantage of chain over wire rope for a tow bridle is that chain（）.

A.is better suited for inland towing
B.resists damage from chafing
C.handles more easily
D.equalizes towing forces better

最新試題

As a ship moves through the water，it drags with it a body of water called the wake. The ratio of the wake speed to the ship’s speed is called（）.

題型：?jiǎn)雾?xiàng)選擇題

One advantage of chain over wire rope for a tow bridle is that chain（）.

題型：?jiǎn)雾?xiàng)選擇題

A vessel is equipped with a single right-handed screw. With rudder amidships and calm wind，the vessel will most likely back（）.

題型：?jiǎn)雾?xiàng)選擇題

A vessel which through some exceptional circumstance is unable to maneuver as required by these Rules and is therefore unable to keep out of the way of another vessel is called（）.

題型：?jiǎn)雾?xiàng)選擇題

A vessel，which is unable to maneuver due to some exceptional circumstance，shall exhibit （）.

題型：?jiǎn)雾?xiàng)選擇題

If a vessel under tow starts jumping on its tow line，the most appropriate action to alleviate the condition is to（）.

題型：?jiǎn)雾?xiàng)選擇題

It is easier to dock a right-hand，single-screw vessel（）.

題型：?jiǎn)雾?xiàng)選擇題

In towing it is desirable for the tug and the vessel to ride wave crests simultaneously because（）.

題型：?jiǎn)雾?xiàng)選擇題

A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit（）.

題型：?jiǎn)雾?xiàng)選擇題

The biggest problem you generally encounter while towing a single tow astern is（）.

題型：?jiǎn)雾?xiàng)選擇題