Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG General Navigation (Set 58)
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Question 1 of 30
Your vessel is entering port and you have steadied up on a range, dead ahead, in line with your keel. After a few minutes the range, still dead ahead, appears as shown in illustration D047NG below. Which action should you take?
Browse Questions in Set 58
30 MCQs #1 Your vessel is entering port and you have steadied up on a range, dead ahead, in line with your keel. After a few minutes the range, still dead ahead, appears as shown in illustration D047NG below. Which action should you take? #2 You are on course 222°T and take a relative bearing of a lighthouse of 025°. What is the true bearing to the lighthouse? #3 You are on course 357°T and take a relative bearing of a lighthouse of 180°. What is the true bearing to the lighthouse? #4 You are on course 180°T and take a relative bearing of a lighthouse of 225°. What is the true bearing of the lighthouse? #5 You are on course 344°T and take a relative bearing of a lighthouse of 270°. What is the true bearing to the lighthouse? #6 You are on course 344°T and take a relative bearing of a lighthouse of 090°. What is the true bearing to the lighthouse? #7 You are on course 027°T and take a relative bearing to a lighthouse of 220°. What is the true bearing to the lighthouse? #8 A relative bearing is always measured from __________. #9 What is the relative bearing of an object sighted dead ahead? #10 What is the relative bearing of an object broad on the starboard beam? #11 What is the relative bearing of an object broad on the port quarter? #12 What is the relative bearing of an object on the port beam? #13 You are on course 030°T. The relative bearing of a lighthouse is 45°. What is the true bearing? #14 You are underway in a vessel with a draft of 7.0 feet (2.1 meters). The charted depth for your position is 9 fathoms. You compute the height of tide to be +3.0 feet (0.9 meters). You determine the depth of the water beneath your keel to be __________. #15 You are underway in a vessel with a draft of 6.0 feet. You are in an area where the charted depth of the water is 4 fathoms. You would expect the depth of water beneath your keel to be approximately __________. #16 When using horizontal sextant angles of three objects to fix your position, an indeterminate position will result in which situation? #17 When making landfall at night, the light from a powerful lighthouse may sometimes be seen before the lantern breaks the horizon. This light is called the __________. #18 If several navigational lights are visible at the same time, each one may be positively identified by checking all of the following EXCEPT what against the Light List? #19 When using a buoy as an aid to navigation which of the following should be considered? #20 When should a navigator rely on the position of floating aids to navigation? #21 When navigating a vessel, you __________. #22 When you are steering on a pair of range lights and find the upper light is in line above the lower light, you should __________. #23 When you are steering on a pair of range lights and find the upper light is above the lower light you should __________. #24 When you are steering on a pair of range lights and find the upper light is above the lower light you should __________. #25 A section of the river that is narrower than usual and is often navigable from bank to bank is a __________. #26 A bluff bar is a bar __________. #27 A bold reef is a reef __________. #28 A structure, usually made of stone, or cement pilings, which extends from the bank at approximately right angles to the current is called a __________. #29 A tow that is properly aligned to pass through a narrow opening between two bridge piers is "__________". #30 The abbreviation L.W.R.P. on the navigation maps means __________.
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