【文章內(nèi)容簡介】 s must be ______. A. referred to B. appreciated C. met with D. concerned KEY: A [308]Navigational charts are subject to frequent changes， the important ones of which are promulgated by ______. A. Admiralty Notices to Mariners B. Mariner39。s Handbook C. Catalogue D. Sailing Directions KEY: A [309]Contour elevations on this chart refer to heights in feet above mean ______. A. lower low water B. high water C. low water D. sea level KEY: D [310]Charts are subject to frequent correction according to ______. A. Notices to Mariners B. Mariner39。s handbook C. Sailing Directions D. Guide to Port Entry KEY: A [311]A chart has extensive corrections to be made to it. When these are made and the chart is again printed， the chart issue is a ______. A. first edition B. new edition C. revised edition D. reprint KEY: B [312]______ are published for the correction of Admiralty Charts． A. Admiralty Sailing Directions B. Admiralty List of Signals C. Mariner39。s Handbook D. Admiralty Notices to Mariners KEY: D [313]______ is not contained in the NM Weekly. A. Amendments to Admiralty Sailing Directions B. Amendments to Admiralty List of Lights and Fog Signals C. Amendments to Admiralty List of Radio Signals D. Supplement to Guide to Port Entry KEY: D [314]The heights and soundings of Admiralty chart are expressed ______ in Fathoms ______ in Meters． A. either， or B. neither， nor C. another， nor D. other， or KEY: A [315]______ day， pilot flag should be displayed from main mast． A. From B. By C. on D. With KEY: B [316]______ objects are those which stand out clearly from the background or other objects and are easily identifiable from a few miles offshore in normal visibility． A. Conspicuous B. Permanent C. Preliminary D. Temporary KEY: A [317]A marker pole， with a horseshoe buoy and a sea anchor attached， should be used to ______. A. mark the position of a lost mooring B. determine your vessel39。s sideslip underway C. determine your speed through the water D. indicate location of a man overboard KEY: D [318]A standon vessel in a crossing situation is allowed to take action when ______. A. on a collision course B. the vessels will pass within one mile C. it bees apparent to her that the giveway vessel is not taking appropriate action D. the relative speed of the vessels indicates collision in less than six minutes KEY: C [319]A steep barometric gradient indicates ______. A. calms B. light winds C. strong winds D. precipitation KEY: C [320]A storm is forecast for the area where your vessel is moored. For its safety you should put ______. A. more slack in the mooring lines B. a strain on the mooring lines C. chafing gear on the mooring lines D. grease on the mooring lines KEY: C [321]Admiralty Notices to Mariners are published ______. A. every day B. every week C. every month D. every year KEY: B [322]Admiralty Notices to Mariners， containing important information for the mariners and enabling them to keep their charts and books corrected for the latest information， are issued daily and published in ______. A. Weekly Editions B. Quarterly Editions C. Annual Editions D. Monthly Editions KEY: A [323]Advise ______ your fishing gear． A. you recovery B. you recover C. you recovering D. you recovered KEY: B [324]Advise you ______ engines． A. stop B. to stop C. stopping D. stopped KEY: A [325]After the passage of a cold front the visibility ______. A. does not change B. improves rapidly C. improves only slightly D. bees poor KEY: B [326]Chart legends printed in capital letters show that the associated landmark is ______. A. conspicuous B. inconspicuous C. a government facility or station D. a radio transmitter KEY: A [327]Chart legends which indicate a conspicuous landmark are printed in ______. A. capital letters B. italics C. boldface print D. underlined letters KEY: A [328]Charted depth is the ______. A. vertical distance from the tidal datum to the ocean bottom plus the height of the tide． B. vertical distance from the tidal datum to the ocean bottom C. average height of water over a specified period of time D. average height of all low waters at a place KEY: B [329]Charted depths ______ by 2 meters due to state of the winds． A. is decreased B. decreased C. decreases D. are decreased KEY: D [330]Charted depths are decreased ______ 2 meters． A. in B. on C. with D. by KEY: D [331]Fog is most monly associated with a(n) ______. A. warm front at night B. low pressure area C. anticyclone D. lack of frontal activity KEY: A [332]For what purpose would using a Lambert conformal chart be more convenient than using a Mercator? A. Plotting radio bearings over a long distance B. Determining latitude and longitude of a fix C. Measuring rhumb line distances D. Measuring rhumb line directions KEY: A [333]Generally， ______ are used as the track charts on the high sea， ______ are used for harbors，inland waters and coastal areas． A. Mercator charts／ Loran charts B. Admiralty charts／ Routeing charts C. large scale charts／ small scale charts D. small scale charts／ large scale charts KEY: D [334]In revised editions of Admiralty charts the ______ are corrected first． A. smaller scales B. larger scales C. smaller scales and larger scales D. moderate scales KEY: B [335]Information for updating nautical charts is primarily found in the ______. A. Notice to Mariners B. Coast Pilots C. nautical chart cata