Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG General Navigation (Set 7)
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Question 1 of 30
Which nautical charts are intended for coastwise navigation outside of outlying reefs and shoals?
Browse Questions in Set 7
30 MCQs #1 Which nautical charts are intended for coastwise navigation outside of outlying reefs and shoals? #2 You are steaming southward along the west coast of the United States when you encounter a buoy showing a flashing red light. The buoy should be left on __________. #3 On charts of U.S. waters, a magenta marking is NOT used for marking a __________. #4 The Light List indicates that a light has a nominal range of 14 miles and is 26 feet high. If the visibility is 14 miles and your height of eye is 20 feet, at which approximate distance will you sight the light? #5 Which statement about a gnomonic chart is correct? #6 Determine the approximate geographic visibility of an object, with a height above the water of 85 feet (25.9 meters), for an observer with a height of eye of 60 feet (18.3 meters). #7 Buoys are marked with reflective material to assist in their detection by searchlight. Which statement is TRUE? #8 Green lights may appear on __________. #9 Information about major breakdowns, repairs, or other emergency operations with regard to weirs and (or) wicket dams, on the western rivers, may be obtained by consulting the __________. #10 The Light List indicates that a light has a nominal range of 14 miles and is 42 feet high (12.8 meters). If the visibility is 6 miles and your height of eye is 20 feet (6.1 meters), at what approximate distance will you sight the light? #11 The Light List indicates that a light has a nominal range of 13 miles and is 36 feet high. If the visibility is 17 miles and your height of eye is 25 feet, at what approximate distance will you sight the light? #12 In which source could you find the number of a chart for a certain geographic area? #13 In the U.S. Aids to Navigation System on the Western Rivers, a preferred channel buoy to be left to port while proceeding downstream will __________. #14 On navigational aids, what does the light characteristic "Fl(2+1)" mean? #15 The Light List indicates that a light has a nominal range of 14 miles and is 26 feet high. If the visibility is 4 miles and your height of eye is 20 feet, at what approximate distance will you sight the light? #16 Where would you expect to find channels marked with the IALA-A Buoyage System? #17 The symbol which appears beside a light on a chart reads "Gp Fl R (2) 10 sec 160 ft 19M". Which characteristic does the light possess? #18 Which light combination does NOT indicate a navigational channel passing under a fixed bridge? #19 Which factor(s) is/are used to develop the charted information of a lighthouse? #20 On entering from seaward, a starboard side daymark will __________. #21 The light rhythm of Morse (A) is shown on __________. #22 The time required for a lighted aid to complete a full cycle of light changes is listed in the Light List as the __________. #23 The lock chamber is 600 feet X 110 feet. Your towboat is 150 feet X 35 feet. Which of these tows will require a double lockage? #24 The maximum distance at which a light may be seen under existing visibility conditions is called __________. #25 In illustration D044NG below, a pillar buoy is indicated by which letter? #26 A special daymark is a __________. #27 Under the IALA-B Buoyage System, when entering from seaward a lateral system buoy to be left to port may display which of the topmarks shown in illustration D046NG below? #28 You are approaching a vertical lift bridge. You know the span is fully open when __________. #29 The Light List shows that a navigational light has a nominal range of 5 miles and a height above water of 21 feet (6.4 meters). Your height of eye is 32 feet (9.8 meters) and the visibility is 1.0 mile. At what approximate range will you first sight the light? #30 Information about the pilotage available at Miami harbor may best be obtained from which publication?
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