4. Aids to navigation in the Straits are ______to maintain and may be______.

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  A . should be done to B . should not be done to C . must be done with D . must not be done with

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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.

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• You create a multiple form application- Which built-in must you use to invoke the form modules to enable you to programmatically control navigation between the multiple forms in your application?（）

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• Some lights used as aids to marine navigation have a red sector to indicate a danger area. The limits of a colored sector of a light are listed in the Light List in which of the following manners?（）

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• If in any doubt as to the pilot’s actions or intentions，the officer in charge of the navigational watch shall（）.

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• MV ATLANTIC AT 0205UTC A BLACK FLOATING MINE WAS SIGHTED IN APPROX POSITION LAT 15.30N LONG 112.30E DANGEROUS TO NAVIGATION VESSELS IN VICINITY. According to this cable，the mine（）.

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• Periodic publications notifying changes in，or additions to，previously published navigational data are（）.

  A . Supplements B . Annual Summary C . Navigational Warnings D . Notices to Mariner

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• Defense plans may cause the operation of electronic aids to navigation to be suspended with （）.

  A . no notice B . one day's notice C . a week's notice D . thirty (30) days notice

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• Aids to navigation marking the intracoastal waterway can be identified by（）.

  A . the letters ICW after the aid's number or letter B . yellow stripes，squares，or triangles marked on them C . white retroreflective material D . the light characteristic and color for lighted aid

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• There are many navigational aids（）.

  A . in chief engineer's room B . in chief officer's room C . on the bridge D . on deck

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• Preferred channel marks are aids to navigation which all following marks other than（）．

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• When ship navigating in rough sea, the first measure taken by the chief engineer to prevent the overload should be（）

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• In navigation the abbreviation “DF” refers to（）.

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• The officer in charge of the navigational watch shall not hand over the watch to the relieving officer if（）.

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• An anchored vessel is servicing an aid to navigation and is restricted in her ability to maneuver. Which lights will she show? （）

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• Mariners are FIRST warned of serious defects or important changes to aids to navigation by means of（）.

  A . marine broadcast Notice to Mariners B . Weekly Notices to Mariners C . corrected editions of charts D . Light List

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• Which three built-ins can you use to navigate between forms invoked with the OPEN_FORM built-in? （）

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• ( ) 4. The writer hadn’t intended to fill in the blank questionnaire.

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• All of the following information concerning lighted aids to navigation may be read directly from the light list except the ______

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• 99. The officer in charge of the navigational watch shall continue to be responsible for the safe navigation of the ship despite the ______ of the master on the bridge.

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• 257. No damage of any kind ____ aids to navigation or navigation facilities.

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• 177. Mariners are FIRST warned of serious defects or important changes to aids to navigation by means of ______

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• 99. Periodic publications notifying changes in，or additions to，previously published navigational data are ________.

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• According to the navigation rules, all of the following are engaged in fishing except a vessel ______.

  A.Setting nets B.Trawling C.Using a dredging net D.Trolling

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