USCG Navigation Problems: Master's License

This is an interactive test. Read each question and select the proper answer by clicking on the appropriate answer. If a "Y" appears, your choice is correct. If a "N" appears, more study may be in order.

150: Which dayboard would you see on Puntney Light (mile 943.6 AHP)?
152: How long will it take you to go from the Memphis Gage to your destination in New Orleans, LA, if you estimate the average current on this segment of the route to be 2.0 mph and you increase the engine turns to 8.5 mph.
178: If the Old Point Comfort main light was inoperative what emergency light would be shown?
231: From your 2123 position, you are approximately 42 miles from Crisfield, MD. If you are making good a speed of 13 knots, at what time should you arrive at Crisfield, MD? 

    N a. 0148
    N b. 0112
    Y c. 0037
    N d. 2359
240: At 1100, your position is LAT 41°11.3'N, LONG 72°28.0'W. You are steering a course of 069°T to leave Black Point one mile off your port beam. It has been reported that the Long Sand Shoal Buoys and Hatchett Reef Buoys are off station. Which of the following will serve as a line marking the hazards and keep your vessel in safe water? 

    N a. A bearing to Little Gull Island Light of not less than 090°
    N b. Maintaining a 7nm range off Orient point
    Y c. Danger bearing to Black Point of not more than 064°T
    N d. A distance to Saybrook Breakwater Light of not less than 1.3 miles
353: At 0550, engineering repairs are complete and speed is increased to 9.6 knots. At 0630, Falkner Island Light bears 023°pgc and Horton Point Light bears 097°pgc. From your 0630 fix you steer to make good a course of 086°T while turning for 9.6 knots. At 0700, Falkner Island Light bears 336.0°pgc and Horton Point Light bears 105.5°pgc. The radar range to the south tip of Falkner Island is 5.7 miles. Which statement is TRUE? 

    N a. Your course made good from 0630 to 0700 was 082°T.
    N b. The speed made good from 0630 to 0700 was 10.1 knots.
    Y c. You are making good your intended speed.
    N d. The current from 0630 to 0700 was 279°T at 0.6 knot.
452: Determine the great circle distance and initial course from LAT 35°17.6'N, LONG 144°23.0'E to LAT 47°36.0'N, LONG 124°22.0'W. 

    N a. 3946 miles, 312°T
    Y b. 3931 miles, 048°T
    N c. 3881 miles, 042°T
    N d. 3718 miles, 318°T
475: The great circle distance from LAT 35°08.0'S, LONG 19°26.0'E to LAT 33°16.0'S, LONG 115°36.0'E is 4559 miles and the initial course is 121°T. Determine the latitude of the vertex. 

    N a. 44°29.1'S
    Y b. 45°30.9'S
    N c. 46°18.2'S
    N d. 43°41.8'S
522: In clear weather, how far away will you sight Point Judith Light? (use charted range of 20 miles as nominal range) 

    Y a. 14.0 nm
    N b. 12.3 nm
    N c. 10.6 nm
    N d. 9.2 nm
552: If the visibility is 10 miles, what is the earliest time you can expect to see New Haven Light? 

    N a. 0500
    N b. 0508
    N c. 0514
    Y d. You will not sight the light.
558: At 0530, you change course to 090°T and increase speed to 8.5 knots. What is the course to steer per gyro compass if northerly winds are causing 2° of leeway? 

    N a. 094°pgc
    N b. 092°pgc
    Y c. 090°pgc
    N d. 088°pgc
603: At 0915 zone time, on 7 November , you depart Seattle, LAT 47°36.0'N, LONG 122°22.0'W (ZD +8). You are bound for Kobe, LAT 34°40.0'N, LONG 135°12.0'E, and you estimate your speed of advance at 18.5 knots. The distance is 4,527 miles. What is your estimated zone time of arrival at Kobe? 

    N a. 1257, 17 November
    Y b. 0657, 18 November
    N c. 1857, 18 November
    N d. 0657, 19 November
605: At 0915 ZT, on 26 July , you depart Yokohama, LAT 35°27.0'N, LONG 139°39.0'E (ZD -9). You are bound for Seattle, LAT 47°36.0'N, LONG 122°22.0'W, and you estimate your speed of advance at 14 knots. The distance is 4,245 miles. What is your estimated ZT of arrival at Seattle? 

    Y a. 0728, 7 August
    N b. 1528, 7 August
    N c. 0028, 8 August
    N d. 1528, 8 August
643: Which company does NOT have a marine facility in Rosedale harbor (mile 585 AHP)? 

    N a. Sanders Elevator Corp
    N b. Rosedale-Boliver County Port Commission
    Y c. T.L. James
    N d. Cives Steel Company
819: On 27 March , in DR position LAT 32°31.0'N, LONG 76°25.0'W, you take an ex-meridian observation of the Sun's lower limb. The chronometer time of the sight is 05h 23m 32s, and the chronometer error is 01m 30s fast. The sextant altitude (hs) is 59°59.0'. The index error is 1.8' off the arc, and your height of eye is 52 feet. What is the latitude at meridian transit? 

    N a. LAT 32°21.6'N
    Y b. LAT 32°29.5'N
    N c. LAT 32°37.6'N
    N d. LAT 32°46.2'N
819: On 27 March , in DR position LAT 32°31.0'N, LONG 76°25.0'W, you take an ex-meridian observation of the Sun's lower limb. The chronometer time of the sight is 05h 23m 32s, and the chronometer error is 01m 30s fast. The sextant altitude (hs) is 59°59.0'. The index error is 1.8' off the arc, and your height of eye is 52 feet. What is the latitude at meridian transit? 

    N a. LAT 32°21.6'N
    Y b. LAT 32°29.5'N
    N c. LAT 32°37.6'N
    N d. LAT 32°46.2'N
827: On 16 November , your 1200 ZT DR position is LAT 26°48.0'S, LONG 124°32.0'W. Your vessel is on course 078°T, speed 17.0 knots. You observe an ex-meridian of the Sun's lower limb. The sextant (hs) reads 81°41.3'. The index error is 1.5' off the arc, and your height of eye is 56 feet. The chronometer time of the observation is 08h 15m 32s, and the chronometer is 03m 06s fast. What is your latitude at meridian transit? 

    Y a. 26°42.6'S
    N b. 26°47.1'S
    N c. 26°49.5'S
    N d. 26°52.3'S
994: At 0600 zone time, on 16 March , your DR position is LAT 20°10.0'N, LONG 81°30.0'W. You are steering course 300°T. The speed over the ground is 10 knots. You observed 3 morning sun lines. Determine the latitude and longitude of your 1130 running fix? NP-0004

    N a. LAT 20°28.5'N, LONG 82°12.6'W
    N b. LAT 20°32.0'N, LONG 82°16.4'W
    Y c. LAT 20°39.0'N, LONG 82°22.9'W
    N d. LAT 20°42.5'N, LONG 82°26.2'W
1002: On 13 November , your 1030 ZT DR position is LAT 19°03'S, LONG 6°34'E. You are on course 164°T, speed 12 knots. Determine your 1200 position using the following observations of the Sun.
ZONE TIME GHA DECLINATION Ho
1112 351°55.4' S 18°00.4' 88°08.0'
1121 354°10.4' S 18°00.5' 88°33.9' 

    Y a. LAT 19°22.3'S, LONG 6°37.8'E
    N b. LAT 19°20.1'S, LONG 6°41.4'E
    N c. LAT 19°17.6'S, LONG 6°39.2'E
    N d. LAT 19°15.8'S, LONG 6°36.8'E
1147: You have orders to drop off the empties at the fleeting area at Cairo Point and add five loaded tank barges to your tow. If you are turning for 9 mph and estimate the current at 1.5 mph, what is your ETA at Cairo? 

    N a. 2210, 22 June
    N b. 1741, 22 June
    Y c. 1423, 22 June
    N d. 1031, 22 June
1271: At 0400 zone time, on 24 June , your DR position is LAT 23°10.0'N, LONG 085°33'W. You are steering 295°T at a speed of 10.0 knots. What is the zone time of sunrise? 

    N a. 0452
    Y b. 0458
    N c. 0504
    N d. 0510
1302: From Baton Rouge to Cairo, what is the maintained minimum channel depth during low water? 

    Y a. 9 feet
    N b. 12 feet
    N c. 15 feet
    N d. 30 feet
1675: On 28 November , your vessel's 0652 DR position is LAT 37°30'N, LONG 124°12'W, when an amplitude of the Sun is observed. The Sun's center is on the visible horizon and bears 103° per standard magnetic compass. Variation in the area is 16.3°E. The chronometer reads 02h 54m 18s and is 02m 06s fast. What is the deviation of the compass? 

    Y a. 2.5°W
    N b. 3.0°W
    N c. 2.0°E
    N d. 3.0°E
1842: What town is located at mile 389.8 AHP? 

    N a. Whitehall
    N b. Belmont
    N c. St. James
    Y d. Rodney
2425: You are taking a time tick using the 2100 signal from Callao, Peru. You hear a series of 1 second dashes followed by a 9 second silent period, then a long 1.3 second dash. At the beginning of the long dash, your comparing watch reads 09h 00m 07s. When compared to the chronometer, the comparing watch reads 09h 01m 12s, and the chronometer reads 08h 59m 32s. What is the chronometer error? 

    Y a. 1m 33s slow
    N b. 0m 28s slow
    N c. 1m 05s fast
    N d. 0m 07s fast
2684: You are steering 173°T, and a light is picked up dead ahead at a distance of 13.9 miles at 0054. You change course to pass the light 4.5 miles off abeam to port. If you are making 21 knots, what is your ETA at the position 4.5 miles off the light? 

    N a. 0122
    N b. 0125
    Y c. 0131
    N d. 0134
3081: If the speed necessary for reaching port at a designated time is 12.6 knots and the pitch of the propeller is 13.6 feet, how many revolutions per minute will the shaft have to turn, assuming no slip? 

    N a. 81
    N b. 85
    N c. 90
    Y d. 94
3300: You have steamed 156 miles and consumed 19 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 273 miles? 

    N a. 23.6 tons
    N b. 27.9 tons
    Y c. 33.3 tons
    N d. 37.2 tons
11904: What is the true course to steer between the entrance to Winnapaug Pond (LAT 41°19.6'N, LONG 71°45.8'W) and the entrance to Lake Montauk (LAT 41°04.8'N, LONG 71°56.3'W), if you are turning for 6.5 knots, allow for a current of 295°T at 0.9 knot, and an easterly wind is causing 4° of leeway? 

    Y a. 196°T
    N b. 200°T
    N c. 213°T
    N d. 217°T
12609: You are on course 239° per standard magnetic compass when you take the following bearings: Falkner Island Light 314°psc Duck Island West Breakwater Light 2DI 039°psc Horton Point Light 157°psc What is your position? 

    Y a. LAT 41°09.9'N, LONG 72°32.0'W
    N b. LAT 41°09.3'N, LONG 72°33.0'W
    N c. LAT 41°10.5'N, LONG 72°32.1'W
    N d. LAT 41°11.6'N, LONG 72°33.6'W
13400: You are going to anchor at Gardiners Bay in LAT 41°04.5'N, LONG 72°13.0'W. What type of bottom should you expect? 

    N a. Streaked mud
    N b. Sand
    N c. Hard rocks
    Y d. Soft mud
13707: The level of mean high water at Old Point Comfort is how many feet above the sounding datum? 

    N a. 1.5 feet
    N b. 2.2 feet
    Y c. 2.5 feet
    N d. 3.5 feet
13807: The chart symbol depicted at LAT 40°58.5'N, LONG 72°43.4'W indicates a(n) __________. 

    N a. abandoned lighthouse
    N b. light ship
    N c. wreck with only its mast visible
    Y d. wreck showing a portion of the hull above the sounding datum
14600: What is the length of The Dalles Lock on the Columbia River? 

    N a. 475 feet
    N b. 500 feet
    Y c. 675 feet
    N d. 1200 feet
15042: From your 0741 position, you wish to change course in order to pass 2.2 miles easterly of Cape Charles Lighted Bell Buoy "14". Your engine speed is now 14.0 knots. You estimate the current to be 240° true at 1.8 knots. What is the true course to steer to make good the desired course? 

    N a. 179°true
    N b. 185°true
    Y c. 190° true
    N d. 197°true
15060: At 0802, the radar range and bearing to Branford Reef Light are 350°pgc at 0.8 mile, and the north point of Falkner Island are 090°pgc at 6.7 miles. What were the set and drift that you encountered since 0740? 

    N a. Set 085°T, drift .2 knot
    Y b. Set 085°T, drift .6 knot
    N c. Set 265°T, drift .2 knot
    N d. Set 265°T, drift .6 knot
15064: At 0844, the range to the north end of Falkner Island is 2.0 miles and the left tangent bearing is 102°T. If the height of the tide is +1.0 foot, what is the approximate depth of the water under the keel? 

    N a. 14 ft (4.2 meters)
    Y b. 19 ft (5.8 meters)
    N c. 22 ft (6.7 meters)
    N d. 29 ft (8.8 meters)
15216: Which of the following concerning Thimble Shoal Channel is TRUE? 

    N a. Only deep-draft passenger ships and large naval vessels may use the main channel.
    N b. The channel is 14.5 miles in length.
    Y c. A tow drawing 20 feet is excluded from the main channel.
    N d. Thimble Shoal Channel is in international waters.
15429: What is the vertical clearance of the Vicksburg Highway 80 Bridge when the river level is the same as the Low Water Reference Plane? The low water reference plane (LWRP) for Vicksburg, MS. is 0.1. 

    N a. 128.3 ft
    N b. 125.6 ft
    N c. 119.5 ft
    Y d. 116.1 ft
15443: As you enter Chesapeake Bay, visibility improves. At 2235 you are between Chesapeake Channel Buoys "5" and "6" in the 41 foot dredged section of Chesapeake Channel. At that time, you change course to pass between buoys "9" and "10". If buoys "11" and "12" are extinguished, your best leading light to keep you in deep water in the Chesapeake Channel, as you approach the Chesapeake Bay Bridge and Tunnel, would be __________. 

    N a. fixed red light on trestle "C"
    Y b. fixed green light on trestle "B"
    N c. fixed red light on trestle "B"
    N d. Thimble Shoal Light
15506: You are underway in the vicinity of Block Island and obtain the following lines of position:

Montauk Point Light 263°pgc
Block Island Southeast Light 026°pgc
Radar Bearing to Block Island Southwest Point 348°pgc

What is your position at the time of these sightings? 

    N a. LAT 41°05.0'N, LONG 71°36.2'W
    N b. LAT 41°05.1'N, LONG 71°36.0'W
    Y c. LAT 41°05.3'N, LONG 71°35.8'W
    N d. LAT 41°05.4'N, LONG 71°35.5'W
15546: At 2350 the gyro is restored to service. At 0016 the visibility improves. At 0028 you sight Bartlett Reef Light in line with New London Harbor Light bearing 039°pgc. What is the gyro error? 

    Y a. 2°E
    N b. 0°
    N c. 2°W
    N d. 4°W
15609: From your 1715 fix, you steer 214°T at 12 knots. At 1800,
you take the following bearings:

Cape Charles Light bearing 296° true
Cape Henry light bearing 242° true

Your 1800 position is __________. 

    Y a. LAT 37°02.9'N,  LONG 75°43.1'W
    N b. LAT 37°02.9'N,  LONG 75°43.9'W
    N c. LAT 37°03.0'N,  LONG 75°43.3'W
    N d. LAT 37°03.1'N,  LONG 75°42.8'W
15619: At 2123, your position is LAT 37°20.0'N, LONG 76°03.0'W. What is your distance offshore of Savage Neck? 

    N a. 4.3 miles
    N b. 3.4 miles
    N c. 2.6 miles
    Y d. 1.7 miles
15770: At 0930, your position is LAT 41°16.5'N, LONG 71°41.4'W, and you are turning for 7 knots. Allowing 3° leeway for northerly winds and estimating the current as 035° at 0.3 knot, what is the course to steer (pgc) to point "B"? 

    N a. 084°pgc
    Y b. 086°pgc
    N c. 091°pgc
    N d. 094°pgc
15809: At 0045, you obtain the following bearings:

Rocky Point lookout tower 072°T
Horton Point lighthouse 213°T

What were the set and drift between 0005 and 0045? 

    N a. 272°true, 0.9 knot
    N b. 272°true, 1.4 knots
    N c. 092°true, 0.9 knot
    Y d. 092°True, 1.4 knots
16114: As you pass through the Chesapeake Bay Bridge and Tunnel,
you sight Trestle "A" in line bearing 198°pgc. What is the gyro error? 

    N a. 2°E
    N b. 0°E
    Y c. 2°W
    N d. 4°W
16239: From your 2045 position, you set a course to pass 1.5 miles due east of the charted position of Hog Island Lighted Bell Buoy "12". The known set and drift in the area are 068°T at 3 knots. What is the course to steer, with no change in engine speed, to make good your desired course? 

    Y a. 200°T
    N b. 203°T
    N c. 206°T
    N d. 209°T
16365: From your 0500 position, you change course to 221°T and order turns for 9.8 knots. At 0600 Chesapeake Light bears 143°pgc at a radar range of 6.5 miles. Cape Henry Light bears 252°pgc. What is the position of your 0600 fix? 

    N a. LAT 36°59.1'N, LONG 75°48.1'W
    N b. LAT 36°59.1'N, LONG 75°47.6'W
    Y c. LAT 36°59.2'N, LONG 75°47.8'W
    N d. LAT 36°58.9'N, LONG 75°48.5'W
16540: You sight Bartlett Reef Light in range with New London Harbor Light bearing 038°pgc. At the time of the bearing,
the helmsman reports he was heading 253°pgc and 269° per standard magnetic compass. What is the deviation for that heading? 

    Y a. 1°E
    N b. 1°W
    N c. 4°E
    N d. 4°W
16714: What was the current between 0520 and 0600? 

    N a. 201° at 1.0 knot
    N b. 201° at 1.5 knot
    N c. 021° at 1.0 knot
    Y d. 021° at 1.5 knots
16740: At 2245 visibility improves and Montauk Point Light bears 355°pgc. At 2314 Montauk Point Light bears 331°pgc, and at 2329 the light bears 311°pgc. Based on your 2329 running fix which statement is TRUE? 

    N a. You are shoreward of the 90 foot curve.
    N b. Your fathometer reads about 136 feet.
    Y c. You are being set to the left of the track.
    N d. You allowed too much leeway for the easterly winds.