11规则大副航海英语单选题(1)
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You hear the fog signal of another vessel forward of your beam.Risk of collision may exist.You MUST ().
- A.Reduce speed to bare steerageway
- B.Stop your engines
- C.Begin a radar plot
- D.All of the above
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The height of the metacenter above the keel will vary depending on the ().
- A.draft and beam of the ship
- B.displacement and deadweight of the ship
- C.buoyancy and trim of the ship
- D.tonnage and deadweight of the ship
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Which statement is TRUE concerning apogean tides ().
- A.They occur only at quadrature
- B.They occur when the Moon is nearest the Earth
- C.They cause diurnal tides to become mixed
- D.They have a decreased range from normal
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If the Certificate of Inspection of a damaged tank barge has expired，which certificate may be issued to allow its movement to a repair facility ________.
- A.change of employment
- B.permit to proceed
- C.application for inspection
- D.temporary certificate of inspection
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______ is a casing used for exhaust pipes from the engines.
- A.the funnel
- B.the messroom
- C.the galley
- D.the satellite antenna
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You are operating a twin-screw vessel and lose your port engine.You continue to operate on your starboard engine only.Which action would you take to move your vessel ahead in a straight line ().
- A.Compensate with right rudder
- B.Compensate with left rudder
- C.Surge the starboard engine
- D.Rudder amidships - no compensation is necessary on a twin-screw vessel
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When testing a Class A EPIRB you will know the EPIRB is working properly if you hear on 99.5 Mhz FM or any vacant frequency on a nearby AM radio().
- A.a distinctive signal
- B.the Morse Code signal for SOS
- C.a computerized voice announcement of Mayday
- D.your vessel's International Radio Call Sign
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A source of an air mass labeled mTw is ().
- A.The equator
- B.The Gulf of Mexico
- C.Alaska
- D.Canada
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The minimum range at which a target can be detected is basically determined by which of the following ().
- A.Persistence
- B.Pulse repetition rate
- C.Pulse length
- D.Rotation rate
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When one upbound vessel is overtaking another vessel and both are pushing a tow ahead，what reaction may you expect ().
- A.Both towheads will tend to drift apart，and the overtaking vessel will be slowed down
- B.Both towheads will tend to drift together，and the overtaking vessel will be slowed down
- C.Both towheads will tend to drift apart，and the overtaken vessel will be slowed down
- D.Both towheads will tend to drift together，and the overtaken vessel will be slowed down_
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