默认题库 - 船舶操纵基本知识 - 查题吧

单选题

While moving ahead，a twin-screw ship has an advantage over a single-screw ship because （）.

A. correct trim will be obtained more easily
B. drag effect will be cancelled out
C. side forces will be eliminated
D. speed will be increased

单选题

A twin-screw ship going ahead on the starboard screw only tends to move（）.

A. in a straight line
B. to port
C. from side to side
D. to starboard

单选题

Apparent wind speed blowing across a vessel under tow can be measured by a(n)（）.

A. barometer
B. wind vane
C. anemometer
D. thermometer

单选题

Catenary as applied to tow lines denotes the（）.

A. dip of the line
B. stretch of the line
C. strain on the line
D. length of the line

单选题

If the towline parts，you should（）.

A. start towing by pushing ahead
B. abandon the towing vessel
C. retrieve the tow bridle
D. relieve strain on the retrieving line

单选题

In towing，heaving lines are used for（）.

A. passing a tow bridle to the tug
B. passing a messenger line
C. heaving in the tow bridle
D. service lines with rocket line thrower

单选题

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

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