Vessels shall be deemed to be in sight of one another only when one ___from the other. A. can be observed visually B. can be observed by radar C. can be located on the radar D. can be heard

单选题

Vessels shall be deemed to be in sight of one another only when one ___from the other.A. can be observed visually B. can be observed by radarC. can be located on the radar D. can be heard

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单选题

Handbooks shall be readily revisable.

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单选题

Fog signals, required under the Rules for vessels underway, shall be sounded ___ .A. only on the approach of another vesselB. only when vessels are in sight of each otherC. at intervals of not more than one minuteD. at intervals of not more than two minutes

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单选题

A vessel nearing a bend or an area of a narrow channel or fairway where other vessels may be obscured by an intervening obstruction shall navigate with particular alertness and caution and shall ___.A. take action to permit safe overtaking B. sound the appropriate signalC. increase her speed D. slacken her speed

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单选题

These tests shall be self-contained.

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