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A vessel the passage of which is not to be impeded()to comply with this Rule when the two vessels are approaching one another so as to involve risk of collision.
A . remains fully obliged
B . has no obligation
C . is not necessarily
D . is exempted
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Due to lapse of time the risk in these areas to surface navigation is now considered ()than the ordinary risks of navigation,but a very real risk still exists with regard to anchoring,fishing or any form of submarine or seabed activity.
A . more serious
B . not less serious
C . more dangerous
D . no more dangerou
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Which procedure(s) shall be used to determine risk of collision? ()
A . Watching the compass bearing of an approaching vessel
B . Systematic observation of objects detected by radar
C . Long-range radar scanning
D . All of the above
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Risk of collision may be deemed to exist().
A . if the compass bearing of an approaching vessel does not appreciably change
B . even when an appreciable bearing change is evident, particularly when approaching a vessel at close range
C . if you observe both sidelights of a vessel ahead for an extended period of time
D . All of the above
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When two power-driven vessels are meeting head-on and there is a risk of collision,each shall().
A . stop her engines
B . alter course to starboard
C . sound the danger signal
D . back dow
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You are in charge of a stand-on vessel in a crossing situation.The other vessel is 1.5 miles to port.You believe that risk of collision exists.You should().
A、take avoiding action immediately upon determining that risk of collision exists
B、immediately sound the danger signal
C、take avoiding action only after providing the give-way vessel time to take action ,and determining that her action is not appropriate
D、 hold course and speed until the point of extremis, and then sound the danger signal, taking whatever action will best avert collision
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A vessel constrained by her draught shall,when risk of collision with another vessel in a crossing or head-on situation exists,().
A . apply the relevant Steering and Sailing Rules as a power-driven vessel
B . apply the relevant Steering and Sailing Rules as a Sailing vessel
C . apply the relevant Steering and Sailing Rules as a vessel not under command
D . apply the relevant Steering and Sailing Rules as a vessel engaged in a towing operatio
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You are underway in thick fog.You have not determined if risk of collision exists.Which statement is true?()
A . Your speed must be reduced to bare steerage ways
B . A look-out is not required if the radar is on
C . The radar should always be kept on a short-range scale
D . Fog signals are only required when a vessel is detected by radar
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When two power-driven vessels are meeting on reciprocal or nearly reciprocal courses so as to involve risk of collision,they shall be deemed to be in().
A . crossing situation
B . head-on situation
C . restricted visibility
D . overtaking situatio
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Which one of the following rules is not regarding two power-driven vessels meeting end or nearly end on so as to involve risk of collision().
A . Each shall keep her course and speed
B . Each shall alter her course to starboard
C . Each shall pass on the portside to the other
D . Each shall indicate such action by one short blast on the whistle
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A vessel hearing a fog signal forward of her beam has not determined if risk of collision exists. She shall reduce speed to().
A . moderate speed
B . safe speed
C . half speed
D . bare steerageway
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Every vessel shall()maintain a proper look-out by sight and hearing as well as by all available means appropriate in prevailing circumstances and conditions so as to make a full appraisal of the situation and of the risk of collision.
A . in fog
B . at night
C . in narrow fairway
D . at all time
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When two power-driven vessels are meeting on reciprocal or nearly reciprocal courses so as to involve risk of collision,they shall be deemed to be in().
A . head-on situation
B . crossing situation
C . overtaking situation
D . close-quarters situatio
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In determining if risk of collision exists the following considerations shall be among().
A . these taken into calculation
B . those taking into account
C . that taken into account
D . those taken into account
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The risk of collision shall be deemed to exist if the compass bearing of an approaching vessel ().
A、did not appreciably change
B、does not appreciably change
C、do not appreciably change
D、not appreciably change
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In restricted visibility, a vessel which detects by radar alone the presence of another vessel shall determine if a close quarters situation is developing or risk of collision exists. If so, she shall().
A . sound the danger signal
B . when taking action, make only course changes
C . avoid altering course toward a vessel abaft the beam
D . All of the above
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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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When you doubt the existence of risk of collision,().
A . such risk shall be deemed to exist
B . Such risk shall not be deemed to exist
C . You should keep your course and speed
D . You needn‟t take any action to avoid collision with any vessel
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In fog you observe your radar and determine that risk of collision exists with a vessel which is 2 miles off your port bow. You should().
A . stop your engines
B . sound the danger signal at two-minute intervals
C . hold course and speed until the other vessel is sighted
D . take avoiding action as soon as possible
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To determine if risk of collision exists,a vessel which is fitted with radar must use().
A . radar scanning
B . radar plotting
C . compass bearings
D . All of the above
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Risk of collision may exist ______.
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79. When two power-driven vessels are meeting on reciprocal or nearly reciprocal courses so as to involve risk of collision, they shall be deemed to be in _____.
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164. When you doubt the existence of risk of collision ______
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You are approaching another vessel and are not sure whether danger of collision exists.You must assume ()
A.there is a risk of collision
B.you are the give-way vessel
C.the other vessel is the give-way vessel
D.there is no risk of collision