默认题库 - 船舶操纵基本知识

单选题

In order for a vessel to be engaged in fishing she must be（）.

A. underway
B. using gear which extends more than 50 meters outboard
C. using a seine of some type
D. using gear which restricts her maneuverability

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单选题

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. ste

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单选题

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

A. shock loading on the tow line is reduce
B. towing speed is improved
C. the vessel is more visible from the tug
D. the catenary of the tow line is reduced

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单选题

Once a towline is connected between the towing vessel and the disabled vessel，the towing vessel should（）.

A. not exceed bare steerageway during the transit
B. take a strain as soon as you can to control the tow
C. come up to speed very slowly and maintain a safe speed
D. come up to speed quickly，then cut back power considerably to ease the strai

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单选题

In order to back a right-handed，single-screw vessel in a straight line，you will probably need to use（）.

A. very little rudder
B. some left rudder
C. some right rudder
D. full left rudder

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单选题

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

A. change course
B. slow down
C. heave to
D. adjust tow line length

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单选题

When a vessel navigates in an area with a small underkeel clearance but with adequate space to take avoiding action she（）.

A. should not be regarded as a vessel constrained by her draught
B. should be regarded as a vessel constrained by her draught
C. shall be regarded as a vessel restricted in her ability to maneuver
D. should be regarded as a non-displacement vessel

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单选题