Mariners proceeding across the main routes are ______ to do so as wide an angle aspracticable．

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• 1The rules state that vessels may depart from the requirements of the Rules when ______．

  A.there are no other vessels around

  B.operating in a narrow channel

  C.the Master enters it in the ship's log

  D.necessary to avoid immediate danger

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• 2Owing to the big draught of the ship，she has to go alongside by the time of ______．

  A.spring tide

  B.flood tide

  C.ebb tide

  D.slack water

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• 3Chafing gear should be placed ______．

  A.at all wearing points of mooring lines

  B.at the bitter ends of all standing rigging

  C.around running rigging

  D.on wire rope only forces

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• 4The most doubtful and unpredictable factor in a mooring system is the ______．

  A.ability of the anchors to hold in a seabed

  B.anchor chain catenary length

  C.variability of the fairlead

  D.angle of the flukes

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• 5After casting off moorings at a mooring buoy in calm weather，you should ______．

  A.go full ahead on the engine(s)

  B.back away a few lengths to clear the buoy and then go ahead on the engines

  C.go half ahead on the engines and put the rudder hard right

  D.go half ahead on the engines and pass upstream of the buoy

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• 6A tug would NOT assist a ship to steer if the tug is made up to the large vessel ______．

  A.by a tow line ahead of the vessel

  B.forward on either bow of the vessel

  C.approximately amidships of the vessel

  D.on the vessel's quarter

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• 7Where one of two vessels is to keep out of the way the other ______．

  A.shall not keep her course but shall keep her speed

  B.shall not keep her course and speed

  C.shall keep her course but change her speed

  D.shall keep her course and speed

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• 8All of the following are engaged in fishing EXCEPT ______．

  A.A vessel trawling

  B.A vessel trolling

  C.A vessel setting nets

  D.A vessel tending lines

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• 9When underway in a channel,you should keep to the ______．

  A.middle of the channel

  B.starboard side of the channel

  C.port side of the channel

  D.side of the channel that has the widest turns

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• 10The two vessels underway may collide with ______,if they don't take immediate measures．

  A.one to another

  B.one the other

  C.each the other

  D.each other

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