Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR

USCG General Navigation (Set 4)

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Question 1 of 30

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Question 1 of 30

A preferred-channel buoy may be __________.

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30 MCQs

#1 A preferred-channel buoy may be __________. #2 A white diamond daymark with an orange border is a(n) __________. #3 A white buoy with an orange rectangle on it is used to indicate __________. #4 In waters where the cardinal system is used you would expect to find danger __________. #5 What lights would you see on the Illinois water way when any wickets of the dam or bear traps are open, or partially open, which may cause a set in the current conditions in the upper lock approach? #6 A cardinal mark showing an uninterrupted quick-flashing white light indicates the deepest water in the area is on the __________. #7 Under the IALA cardinal system, a mark with a quick white light showing 6 flashes followed by one long flash indicates that the safest water is on the __________. #8 If you observe a buoy off station you should __________. #9 A white buoy with an orange circle marked on it indicates __________. #10 Under the IALA cardinal system, a mark with quick white light showing 3 flashes every 10 seconds indicates that the safest water in the area is on the __________. #11 Vessels should maintain a sharp lookout, especially during December through March, when navigating the right whale's only known calving grounds which lie off the coasts of __________. #12 How many points are there in a compass card? #13 The draw span of a floating drawbridge may be marked with __________. #14 What is a lighted safe water mark fitted with to aid in its identification? #15 A nun buoy will __________. #16 To find the specific phase characteristic of a lighthouse on a sound of the United States you would use the __________. #17 What is the compass course of a vessel heading NW? #18 Normal pool elevation is the height in feet of the section of river above a dam. This height is measured from __________. #19 Under the IALA-B Buoyage System, a conical buoy will be __________. #20 The height of a light is measured from which reference plane? #21 An orange and white buoy with a rectangle on it displays __________. #22 While proceeding along the Mediterranean coast of Spain, you sight the black and yellow buoy shown in illustration D020NG below. Your course is 039°T, and the buoy bears 053°T. What action should you take? #23 Coast Pilots and navigational charts are kept corrected and up-to-date by using the __________. #24 What is a lighted safe water mark fitted with to aid in its identification? #25 Geographic range is the maximum distance at which a light may be seen under __________. #26 You are underway on course 127°T. You sight a buoy with the topmarks shown in illustration D025NG below, bearing two points on the starboard bow. Which action must be taken? #27 Northern right whales can be identified by __________. #28 If a towboat requires a double lockage it shall give which sound signal at a distance of not more than one mile from the lock? #29 A safe water daymark has what shape? #30 A chart with a scale of 1:80,000 would fall into the category of a __________.

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