Pass Benchmark: 70% • Standard: USCG NMC / 46 CFR
USCG Deck Navigation (Supplementary) (Set 1)
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Question 1 of 30
The principal purpose of magnetic compass adjustment is to __________.
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30 MCQs #1 The principal purpose of magnetic compass adjustment is to __________. #2 While steaming on course 280°T, you sight a buoy showing a very quick-flashing (VQ) white light well to port. Maintaining course, you sight another buoy showing a quick-flashing (Q) white light. You should pass __________. #3 The characteristic of a lighted cardinal mark may be __________. #4 You are underway on course 142°T when you sight a buoy bearing 105°T. The buoy's white light has a characteristic of continuous very-quick flashing. To ensure that your vessel remains in the best navigable water you would __________. #5 You are underway in the North Sea on course 216°T when you sight a buoy bearing 021° relative. Under the IALA Buoyage System, you are in the best navigable water if the buoy __________. #6 On approaching the English Channel on course 080°T, you note the symbol YBY near a charted buoy. You must pass __________. #7 In the IALA Buoyage System, preferred-channel-to-port or preferred-channel-to- starboard buoys, when fitted with lights, will show a __________. #8 Under the IALA cardinal system, a mark with a quick light showing 9 flashes every 15 seconds indicates that the safest water is on the __________. #9 Under the U.S. Aids to Navigation System on the Western Rivers, a preferred- channel buoy is __________. #10 While proceeding along the Norwegian coast on course 039°T, you sight the black- yellow-black banded buoy shown in illustration D021NG below, bearing 053°T. What action should you take? #11 You are heading out to sea in a buoyed channel and see a quick-flashing green light on a buoy ahead of you. In U.S. waters, you should leave the buoy __________. #12 Aids to navigation marking the intracoastal waterway can be identified by __________. #13 Under the IALA-A Buoyage System, when entering from seaward, a buoy indicating the preferred channel is to starboard may have a __________. #14 While preparing to enter a Brazilian port, you see ahead a red and green horizontally- striped buoy. The upper band is red. What action should you take? #15 You sight a spar buoy with the top mark shown in illustration D027NG below. You must take which of the following actions? #16 Unlighted, red and green, horizontally-banded buoys with the topmost band red __________. #17 Under the IALA Buoyage System, which topmark shown in illustration D023NG below will be displayed on a safe water mark? #18 Which buoy will NOT display white retroreflective material? #19 A large automated navigational buoy, such as those that have replaced some lightships, would be shown on a chart by which symbolin illustration D015NG below? #20 Sometimes foreign charts are reproduced by NGA. On such a chart, a wire- dragged, swept area may be shown in green or __________. #21 The U.S. Coast Guard publishes __________. #22 Civil twilight starts at 1812 zone time on 26 August, Your DR position at that time is LAT 21°06'S, LONG 14°56'W. Which statement concerning the planets available for evening sights is TRUE? #23 The reaction of a gyrocompass to an applied force is known as __________. #24 The directive force of a gyrocompass __________. #25 Which statement about the gyrocompass is FALSE? #26 A system of reservoirs and connecting tubes in a gyro compass is called a __________. #27 At the master gyrocompass, the compass card is attached to the __________. #28 Indications of the master gyrocompass are sent to remote repeaters by the __________. #29 Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are __________. #30 Error may be introduced into a magnetic compass by __________.
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