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.

69: Which type of daymark will you see as you approach Joe Pierce Light (mile 335.4 AHP)?
82: If the Rosedale Gage reads -0.5 feet, what is the water level in relation to the low water reference plane? The low water reference plane (LWRP) for Rosedale, MS. is 3.0 feet.
141: Your vessel is making turns for 9.5 mph and you estimate the average current for the trip will be 2.5 mph. What will be your ETA Donaldsonville, LA?
179: In order to check your compasses, you sight North Dumpling Island Light in line with Latimer Reef Light bearing 077°pgc. The helmsman was steering 307°pgc and 320° per standard magnetic compass at the time. Which statement is TRUE? 

    N a. The gyro error by observation is 2°E.
    N b. The deviation based on the observation is 15°W.
    Y c. The magnetic compass error is 14°W.
    N d. The true line of the range is 079°.
210: During evening twilight on 28 December , the sextant altitude (hs) of the planet Venus was 29°43.2'. The height of eye was 40 feet, and the index error was 2.0' on the arc. What was the observed altitude (Ho)? 

    Y a. 29°34.1'
    N b. 29°36.0'
    N c. 29°36.3'
    N d. 29°38.2'
268: What publication contains information on the navigational hazards in the vicinity of Falkner Island? 

    N a. The navigational regulations in Title 46, Code of Federal Regulations
    Y b. U.S. Coast Pilot
    N c. U.S. Coast Guard Light List
    N d. Inland Navigation Rules
306: A vessel steams 640 miles on course 047°T from LAT 34°45'N, LONG 140°00'E. What are the latitude and longitude of the point of arrival by mid-latitude sailing? 

    N a. LAT 41°57'N, LONG 150°02'E
    Y b. LAT 42°01'N, LONG 149°57'E
    N c. LAT 42°06'N, LONG 149°53'E
    N d. LAT 42°09'N, LONG 149°50'E
422: Which statement regarding the wreck 0.2 mile south of buoys "1" and "2" at the entrance to New London Harbor is TRUE? 

    N a. The wreck presents a danger to all vessels with drafts in excess of 30 feet (9.1 meters).
    N b. The wreck is visible above the sounding datum between the months of March and June.
    N c. The wreck was cleared by wire drag in 1982 and will not appear on future charts.
    Y d. The wreck is shown on the chart, but its actual existence is doubtful.
465: Determine the great circle distance and initial course from LAT 34°51.0'N, LONG 115°01.2'E to LAT 10°16.0'S, LONG 51°42.6'E. 

    N a. 4436 miles, 245.3°T
    N b. 4598 miles, 245.6°T
    Y c. 4493 miles, 245.6°T
    N d. 4582 miles, 245.6°T
703: In high water conditions, which publication would you consult for the latest information on buoys between Baton Rouge and Cairo? 

    N a. List of Buoys and Daymarks
    N b. U.S.C.G. Light List
    N c. Army Corps. of Engineers  Navigation Map
    Y d. None of the above
749: On 15 February at 0610 ZT, in DR position LAT 56°53.0'N, LONG 157°02.9'E, you observe Polaris at a sextant altitude (hs) of 56°10.4'. The index error is 2.5' on the arc, and the height of eye is 18 meters. What is the latitude? 

    Y a. 56°41.8'N
    N b. 56°47.9'N
    N c. 56°48.1'N
    N d. 57°10.6'N
989: On 2 April , your 0830 zone time fix gives you a position of LAT 20°16.0'S, LONG 004°12.0'E. Your vessel is steaming a course of 143°T at a speed of 18.0 knots. An observation of the Sun's upper limb is made at 0903 zone time, and the observed altitude (Ho) is 42°39.6'. The chronometer reads 09h 05m 40s, and the chronometer error is 02m 15s fast. Local apparent noon occurs at 1145 zone time,
and a meridian altitude of the Sun's lower limb is made.
The observed altitude (Ho) for this sight is 63°46.2'.
Determine the vessel's 1200 zone time position. 

    N a. LAT 21°10.1'S, LONG 004°53.9'E
    N b. LAT 21°14.0'S, LONG 004°55.0'E
    Y c. LAT 21°18.0'S, LONG 005°00.5'E
    N d. LAT 22°42.0'S, LONG 004°57.0'E
1168: Which company does NOT have a marine facility in Rosedale harbor (mile 585 AHP)? 

    Y a. T.L. James
    N b. Rosedale-Boliver County Port Commission
    N c. Cives Steel Company
    N d. Sanders Elevator Corp
1263: On 18 October , your 1330 ZT DR position is LAT 27°32.0'N, LONG 154°47.0'W. You are on course 115°T at a speed of 20 knots. What will be the zone time of sunset at your vessel? 

    N a. 1715
    N b. 1729
    Y c. 1742
    N d. 1751
1270: At 0500 zone time, on 21 August , your DR position is LAT 47°00'N, LONG 125°15'W. You are steering 000°T at a speed of 9.8 knots. What is the zone time of sunrise? 

    Y a. 0525
    N b. 0529
    N c. 0531
    N d. 0535
1482: On 20 July , your vessel's 1626 zone time DR position is LAT 27°13.0'N, LONG 63°42.0'W, when you take an azimuth of the Sun. Determine the gyro error using the azimuth information.
Chronometer time: 08h 24m 18s Chronometer error: slow 02m 12s Gyro bearing: 279.3°
Variation: 15°W 

    Y a. 1.9°W
    N b. 2.6°W
    N c. 1.4°E
    N d. 2.6°E
1486: On 1 September , your 1115 zone time DR position is LAT 25°20.0'N, LONG 28°24.0'W. At that time, you observe the Sun bearing 160.5°psc. The chronometer reads 01h 14m 58s, and the chronometer error is 01m 17s fast. The variation is 13.5°W. What is the deviation of the standard compass? 

    Y a. 2.1°E
    N b. 4.1°E
    N c. 11.0°W
    N d. 11.0°E
1503: On 30 July , your 0200 zone time (ZD +4) DR position is LAT 43°48'N, LONG 78°00 W. At that time, you observe Polaris bearing 008.7°psc. The chronometer time of the observation is 05h 58m 07s, and the chronometer is 0m 23s slow. The variation is 10.5°W. What is the deviation of the magnetic compass? 

    N a. 0.5°E
    Y b. 3.0°E
    N c. 7.5°W
    N d. 18.0°W
1759: The Greenville Gage reads 1.6 feet. The high point of your towboat is 54 feet above water. What is the vertical clearance as you pass under the Greenville Highway Bridge? 

    Y a. 74.5 feet
    N b. 64.2 feet
    N c. 55.5 feet
    N d. 44.4 feet
1811: Where would you find out which buoys, if any, are in place at Concordia Bar crossing (mile 596.0 AHP)? 

    Y a. Notice to Mariners
    N b. Bulletin board at the Rosedale Gage
    N c. Waterways Journal
    N d. None of the above
1881: On 13 September , your 1830 ZT DR position was LAT 23°03'S, LONG 105°16'E, when you observed a faint unidentifiable star through a hole in the clouds. The star bore 148.0°T at a sextant altitude (hs) of 32°24.3'. The chronometer read 11h 24m 39s and is 05m 08s slow. The index error is 1.0' off the arc, and the height of eye is 52 feet. What star did you observe? 

    N a. Beta Gruis
    Y b. Alpha Tucanae
    N c. Beta Aquarii
    N d. Alpha Indi
2060: The highest point on your towboat is 67 feet above the water, and the Helena Gage reads +22.3 feet. What is the vertical clearance when you pass under the A-span of the Helena Highway Bridge? 

    Y a. 30.1 feet
    N b. 49.8 feet
    N c. 52.4 feet
    N d. 74.7 feet
2091: At your current speed of 22 knots you only have enough fuel remaining to travel 422 miles. You must travel 844 miles to reach your destination. What should you reduce your speed (knots) to in order to reach your destination? 

    N a. 19.8
    N b. 18.4
    N c. 17.0
    Y d. 15.6
2285: You observe the lower limb of the Sun at a sextant altitude (hs) of 45°49.7' on 13 November . The index error is 1.0' on the arc. The height of eye is 61 feet (18.6 meters). What is the observed altitude (Ho)? 

    N a. 45°59.3'
    Y b. 45°56.4'
    N c. 45°52.9'
    N d. 45°49.8'
2319: You complete changing out your tow and get underway enroute Ark City Tank Storage (mile 554.0 AHP) to deliver the tank barges. What is the distance you must travel from Cairo Point Light? 

    N a. 606.8 miles
    N b. 554.0 miles
    Y c. 399.8 miles
    N d. 202.1 miles
2720: Which company utility crossing is at mile 529.7 AHP? 

    Y a. Texas Gas Transmission Corp. submerged gas pipeline
    N b. Tennessee Gas Co. submerged gas pipeline
    N c. ANR Pipeline Co. submerged gas pipeline
    N d. Trunkline Gas Co. submerged gas pipeline
2900: You are steaming on a course of 167°T at 19.5 knots. At 1837 you observe a lighthouse bearing 224°T. At 1904 the lighthouse bears 268°T. What is your distance off at the second bearing? 

    N a. 8.8 miles
    N b. 9.5 miles
    Y c. 10.4 miles
    N d. 11.3 miles
3096: If the pitch of the propeller is 20.1 feet, and the revolutions per day are 118,178, calculate the day's run allowing 6% negative slip. 

    N a. 367.2 miles
    N b. 381.6 miles
    N c. 398.4 miles
    Y d. 414.1 miles
3106: You are turning 85 RPM, with a propeller pitch of 19 feet, and an estimated slip of +3%. What is the speed of advance? 

    N a. 14.7 knots
    Y b. 15.5 knots
    N c. 16.4 knots
    N d. 17.1 knots
3287: While steaming at 16.5 knots, your vessel consumes 349 barrels of fuel oil per day. In order to reduce consumption to 189 barrels of fuel oil per day, what is the maximum speed the vessel can turn for? 

    N a. 12.1 knots
    Y b. 13.5 knots
    N c. 14.6 knots
    N d. 15.4 knots
3291: While steaming at 19.5 knots, your vessel burns 297 bbls of fuel per day. What will be the rate of fuel consumption if you decrease speed to 15 knots? 

    Y a. 135 bbls
    N b. 176 bbls
    N c. 229 bbls
    N d. 243 bbls
3305: You have steamed 201 miles and consumed 18.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 482 miles? 

    N a. 25.2 tons
    Y b. 43.2 tons
    N c. 52.6 tons
    N d. 103.5 tons
3613: You are steering a magnetic compass course of 075°. The variation for the area is 10°W, and the compass deviation is 5°E. What is the true course you are steering? 

    N a. 060°T
    Y b. 070°T
    N c. 080°T
    N d. 090°T
10308: You are 3 miles due east of Montauk Point Light. What is the course per standard magnetic compass to a position 1.5 miles due east of Watch Hill Point Light? 

    N a. 341°psc
    N b. 337°psc
    N c. 011°psc
    Y d. 007°psc
10507: At 0919 your position is LAT 37°00.0'N, LONG 75°30.0'W. You are on course 270°T at 10.5 knots. At 1020 your position is LAT 36°59.5'N, LONG 75°44.9'W. What was the current? 

    N a. 026° at 0.7 knot
    N b. 046° at 1.0 knot
    N c. 226° at 0.8 knot
    Y d. 246° at 1.4 knots
12900: Your 1302 position is LAT 37°14.7'N, LONG 76°22.7'W. You are turning for 9.6 knots. What is your ETA at Trestle C of the Chesapeake Bay Bridge and Tunnel if you follow York River Entrance Channel? 

    N a. 1516
    Y b. 1505
    N c. 1500
    N d. 1451
13104: At 0242 your position is LAT 41°16.8'N, LONG 71°39.9'W. You are turning for 9.3 knots. What is your ETA at the West Gap of Pt. Judith Harbor of Refuge? 

    N a. 0319
    N b. 0325
    N c. 0329
    Y d. 0336
14204: The mooring float at Beacon Rock State Park is restricted to pleasure boats and to periods not to exceed __________. 

    N a. 12 hours
    N b. 24 hours
    Y c. 36 hours
    N d. 48 hours
14604: Contour elevations on this chart refer to heights in feet above mean __________. 

    N a. lower low water
    N b. high water
    N c. low water
    Y d. sea level
15007: What course should you steer using the standard magnetic compass (psc) to make good the course of 192°pgc? 

    N a. 188°psc
    N b. 195°psc
    Y c. 203°psc
    N d. 205°psc
15307: At 0315, you obtain the following bearings:

Old Plantation Flats Light bearing 179.5° true
Wolf Trap Light bearing 271° true

What is the true course from this position to the entrance of York Spit Channel? 

    N a. 203°
    Y b. 208°
    N c. 211°
    N d. 217°
15539: At 2127 you are on course 076°T. What is your ETA at a position where Twenty Eight Foot Shoal Lighted Bell Buoy "TE" is abeam to port? 

    N a. 2316
    N b. 2324
    Y c. 2332
    N d. 2345
15540: At 2200 Middle Ground Light is bearing 270° true at 9 nm

Which statement is TRUE? 

    N a. The current is flooding.
    Y b. You are being set to the left of the track.
    N c. The set is towards the southwest.
    N d. The drift is 0.6 knot.
15862: At 0125, you change course to make good 280°T. What is the course per standard magnetic compass? 

    N a. 290°psc
    Y b. 292°psc
    N c. 294°psc
    N d. 296°psc
16041: From your 0847 fix, you change course to arrive at the rendezvous position and, correcting for current, you estimate your speed over the ground at 15 knots. What is your ETA at the rendezvous? 

    N a. 0902
    N b. 0905
    Y c. 0908
    N d. 0911
16140: Available information indicates that there is a set and drift in this area of 290°T at 2 knots. Allowing for this set and drift, what course must you steer to make good a true course of 150°, while maintaining an engine speed of 13 knots, from your 1930 position? 

    N a. 141°T
    Y b. 145°T
    N c. 149°T
    N d. 153°T
16141: The speed you can expect to make good over your course while steering to make 150°T is __________. 

    N a. 11.0 knots
    Y b. 11.4 knots
    N c. 14.0 knots
    N d. 14.4 knots
16245: At 2259 Cape Henry Light bears 250°T, Chesapeake Light bears 122°T, and North Chesapeake Entrance Lighted Whistle Buoy "NCA" has a radar range of 1.8 miles. Which statement is TRUE? 

    N a. The course made good is 226°T.
    N b. You are in the red sector of Cape Henry Light.
    N c. You are in a submerged submarine transit lane.
    Y d. Chesapeake Light is 7.6 miles off.
16342: At 2302 you fix your position at LAT 40°57.8'N, LONG 71°39.3'W. What current have you experienced since your 2209 fix? 

    Y a. 105°T at 1.0 knot
    N b. 105°T at 0.9 knot
    N c. 285°T at 1.0 knot
    N d. 285°T at 0.9 knot