甲类船长航海英语6050 题库补充50题(8.1操纵)

08.1 船舶操纵基本知识(或见考证题库合集134-138页)

[2151]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．

KEY: A

[2152]When towing astern，one way to reduce yawing of the tow is to ______.

A. trim the tow by the stern

B. trim the tow by the head

C. have the tow on an even keel

D. list the tow on the side it is yawing

KEY: A

[2153]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

KEY: C

[2154]A racetrack turn would be better than a Williamson turn in recovering a man overboard if ______.

A. the man has been missing for a period of time

B. the sea water is very cold and the man is visible

C. there is thick fog

D. the wind was from astern on the original course

KEY: B

[2155]A reaching course is one in which the wind ______.

A. comes directly over the bow

B. comes directly over the stern

C. comes over an area extending from broad on the bow to the quarter

D. has no effect on the vessel

KEY: C

[2156]A towing vessel becomes tripped while towing on a hawser astern. What factor is MOST important when assessing the risk of capsizing?

A. Length of the towline

B. Height of the towline connection

C. Longitudinal position of the towline connection

D. Direction of opposing force

KEY: B

[2157]A twin screw vessel，making headway with both engines turning ahead，will turn more readily to starboard if you ______.

A. reverse port engine，apply right rudder

B. reverse port engine，rudder amidships

C. reverse starboard engine，apply right rudder

D. reverse starboard engine，rudder amidships

KEY: C

[2158]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

KEY: B

[2159]A twin-screw vessel can clear the inboard propeller and maneuver off a pier best by holding a(n) ______.

A. forward spring line and going slow ahead on the inboard engine

B. after spring line and going slow astern on the outboard engine

C. forward spring line and going slow ahead on both engines

D. forward spring line and going slow ahead on the outboard engine

KEY: D

[2160]A twin-screw vessel is easier to maneuver than a single-screw vessel because the twin-screw vessel ______.

A. permits the rudder to move faster

B. generates more power

C. can turn without using her rudder

D. can suck the water away from the rudder

KEY: C

[2161]A vessel fitted with twin screws is easier in ______ than a vessel with single screw．

A. turning maneuver

B. course setting

C. position fixing

D. regulating speed

KEY: A

[2162]A vessel is considered to be restricted in her ability to maneuver under the Rules if she is ______.

A. at anchor