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.
60: What town is located at mile 389.8 AHP?
N a. Whitehall N b. Belmont Y c. Rodney N d. St. James 69: Which type of daymark will you see as you approach Joe Pierce Light (mile 335.4 AHP)?
Y a. Red Triangle N b. Red square N c. Red diamond N d. Private aid - no daymark 95: You complete changing out your tow and get underway enroute Memphis, Tennessee to deliver 2 tank barges. What is the distance you must travel from Cairo Point Light to the Lion Oil Refining Co. Docks in Memphis?
N a. 180.3 miles Y b. 220.2 miles N c. 246.5 miles N d. 734.3 miles 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 252: At 0100, you obtain the following radar ranges:
Inlet Point - 2.7 miles,
Rocky Point - 4.5 miles,
Horton Point - 1.0 mile.
What was the speed made good between 0045 and 0100?
N a. 6.7 knots Y b. 7.2 knots N c. 8.0 knots N d. 8.7 knots 293: At 1730, your position is LAT 37°13.9'N, LONG 76°26.4'W. You are steering course 088° per standard magnetic compass (psc) at an engine speed of 8.0 knots. What is your distance off Tue Marshes Light at 1730?
N a. 3.2 miles N b. 3.0 miles N c. 2.8 miles Y d. 2.6 miles 308: A vessel at LAT 20°00'N, LONG 107°30'W is to proceed to LAT 24°40'N, LONG 112°30 W. What is the course and distance by mid-latitude sailing?
N a. 314.0°T, 389.0 miles Y b. 315.3°T, 394.0 miles N c. 317.2°T, 397.0 miles N d. 318.3°T, 399.0 miles 323: At 2205, you are in Thimble Shoal North Auxiliary Channel abeam of lighted gong buoy "4". At this time the visibility decreases to 5 miles. You continue to turn RPMs for 6 knots and experience no set and drift. What time would you expect Old Point Comfort Light (white sector) to become visible?
N a. 2258 N b. 2246 Y c. 2240 N d. 2230 388: From your 0745 fix, you change course to pass 1.0 mile south of buoy "WH" and estimate your speed at 7 knots. If the visibility clears, what is the earliest time you can expect to see Block Island North Light tower?
N a. 0845 N b. 0838 Y c. 0807 N d. 0750 424: From your 0530 position, you set a course of 271°psc with an engine speed of 9 knots. At 0645, Cornfield Safe-Water Buoy is abeam to starboard. What speed have you averaged since 0530?
N a. 9.5 knots N b. 9.0 knots Y c. 8.6 knots N d. 7.5 knots 435: Which course should you change to per standard magnetic compass as you pass SW Ledge Light to remain in the channel?
N a. 026°psc Y b. 022°psc N c. 014°psc N d. 007°psc 529: You depart LAT 51°48.0'S, LONG 178°35.0'W and steam 179 miles on course 270°. What is the longitude of arrival?
N a. 173°47'W N b. 174°27'E Y c. 176°36'E N d. 179°52'W 537: Determine the distance from LAT 19°54.0'N, LONG 166°36.0'E to LAT 19°54.0'N, LONG 157°54.0'W. by parallel sailing.
N a. 2204.6 miles N b. 2006.9 miles Y c. 2002.8 miles N d. 1990.6 miles 604: At 1820 zone time, on 21 March , you depart San Francisco, LAT 37°48.5'N, LONG 122°24.0'W (ZD +8). You are bound for Melbourne, LAT 37°49.2'S, LONG 144°56.0'E, and you estimate your speed of advance at 21 knots. The distance is 6,970 miles. What is your estimated zone time of arrival at Melbourne?
N a. 1214, 4 April N b. 2214, 4 April Y c. 0814, 5 April N d. 1314, 5 April 736: On 6 March , your 1854 zone time DR position is LAT 23°51.5'N, LONG 73°14.0'W. At that time you observe Polaris with a sextant altitude (hs) of 24°16.5'. The chronometer time of the sight is 11h 52m 40s, and the chronometer error is 01m 56s slow. The index error is 5.0' on the arc, and the height of eye is 43.5 feet (13.3 meters.) What is your latitude by Polaris?
N a. 23°29.5'N Y b. 23°36.3'N N c. 23°49.9'N N d. 24°02.9'N 1188: On 9 February , your 0830 zone time DR position is LAT 22°19.0'N, LONG 64°37.0'E. Your vessel is on course 128°
T at a speed of 19.0 knots. What is the zone time of local apparent noon (LAN)?
Y a. 1152 N b. 1156 N c. 1201 N d. 1205 1194: On 16 January your 0930 ZT DR position is LAT 26°07.0'S, LONG 51°43.0'E. Your vessel is on course 238°T at a speed of 17.0 knots. What is the ZT of local apparent noon (LAN)?
Y a. 1145 N b. 1148 N c. 1152 N d. 1156 1264: On 17 November , your 1530 ZT DR position is LAT 27°13.0'S, LONG 153°21.0'W. You are on course 261°T at a speed of 14 knots. What will be the ZT of sunset at your vessel?
N a. 1813 N b. 1828 N c. 1834 Y d. 1845 1282: On 1 November , your 1600 zone time DR position is LAT 27°48'S, LONG 91°26'E. Your vessel is on a course of 327°
T at a speed of 16 knots. What will be the zone time of sunset at your vessel?
Y a. 1813 N b. 1821 N c. 1829 N d. 1836 1304: At 1000, on May 11th, you are passing George Prince Lt. (mile 364.1 AHP) in Natchez, Mississippi and must send an ETA to the Monsanto Terminal in St. Louis (mile 178.0 UMR). Your engines are still turning for 8.5 mph and you estimate the current at 2.5 mph. What will be your arrival time in St. Louis?
N a. 1919 on 15 May N b. 2344 on 15 May N c. 1113 on 16 May Y d. 1757 on 16 May 1488: At 2326 ZT, on 22 June , your vessel's position is LAT 28°30'N, LONG 150°04'W. An azimuth of the planet Jupiter is observed, and the standard compass bearing is 250.4°. The chronometer reads 09h 24m 36s and is 01m 12s slow. The variation of this area is 13.5°E. What is the deviation of the standard compass?
N a. 3.0°W N b. 3.5°W N c. 1.5°E Y d. 2.3°E 1658: On 23 August , in DR position LAT 24°07.0'N, LONG 136°16.0'E, you observe an amplitude of the Sun. The Sun's center is on the visible horizon and bears 074.5°psc. The chronometer reads 08h 56m 19s and is 02m 34s fast. Variation in the area is 2°W. What is the deviation of the magnetic compass?
N a. 2.5°E N b. 2.8°W Y c. 4.5°E N d. 4.8°W 1701: The latest available information on the channel conditions above Baton Rouge that includes the latest buoy information, as well as recommended courses, is found in the __________.
N a. Corps. of Engineers maps N b. Waterways Journal Y c. Local Notice to Mariners N d. Sailing Directions 1722: You estimate the current as 2.0 mph. What is the speed over the ground?
N a. 4.5 mph Y b. 5.5 mph N c. 7.5 mph N d. 9.5 mph 1909: On 22 March , your 1834 DR position is LAT 26°13.5'S, LONG 108°36.5'W. You observe an unidentified star bearing 294°T at an observed altitude (Ho) of 33°02.7'. The chronometer reads 01h 32m 37s, and is 01m 50s slow. What star did you observe?
N a. Regulus Y b. Menkar N c. Rigel N d. Alphard 2006: On 8 November , your 1731 zone time DR position is LAT 27°16.0'N, LONG 137°25.0'W. Considering their magnitude, azimuth, and altitude, which group includes the three stars best suited for a fix at star time?
Y a. Alphecca, Fomalhaut, Schedar N b. Antares, Rasalhague, Altair N c. Sirius, Hamal, Dubhe N d. Peacock, Ankaa, Al Na'ir 2026: On 10 June , your 1712 zone time DR position is LAT 25°10.0'S, LONG 06°58.0'E. You are on course 213°T at a speed of 9.0 knots. Considering their magnitude, azimuth, and altitude, which group includes the three stars best suited for a fix at star time?
N a. Procyon, Antares, Sirius N b. Sirius, Procyon, Regulus N c. Acrux, Canopus, Regulus Y d. Acrux, Procyon, Arcturus 2026: On 10 June , your 1712 zone time DR position is LAT 25°10.0'S, LONG 06°58.0'E. You are on course 213°T at a speed of 9.0 knots. Considering their magnitude, azimuth, and altitude, which group includes the three stars best suited for a fix at star time?
N a. Procyon, Antares, Sirius N b. Sirius, Procyon, Regulus N c. Acrux, Canopus, Regulus Y d. Acrux, Procyon, Arcturus 2113: From your 0130 position, you change course to adjust for set and drift, and you later obtain the following bearings:
Mattituck Inlet Light bearing 104.5°true
Falkner Island Light bearing 001°true
What is the latitude and longitude of your fix?
N a. LAT 41°00.8'N, LONG 72°40.8'W N b. LAT 41°01.2'N, LONG 72°40.4'W N c. LAT 41°01.6'N, LONG 72°40.0'W Y d. LAT 41°02.0'N, LONG 72°39.5'W 2212: At 1650 you decrease speed to make good 7.1 mph. At 2020 you are __________.
Y a. abeam of Old River Control Structure Light N b. entering the Vicksburg District of the U.S. Army Corps. of Engineers N c. at Palmetto Point N d. at Latitude 31°10'N 2703: You are underway on course 254°T at a speed of 16.5 knots. You sight a rock bearing 255°T at a radar range of 6.1 miles at 0916. If you change course at 0922, what is the course to steer to leave the rock abeam to starboard at 1.5 miles?
N a. 268°T N b. 239°T Y c. 236°T N d. 233°T 2881: Your vessel is steering 049°T at 15 knots. At 1914 a light bears 078°T, and at 1951 the same light bears 116°T. What will be your distance off abeam?
Y a. 6.7 miles N b. 7.1 miles N c. 7.5 miles N d. 8.3 miles 3310: You have steamed 216 miles and consumed 19.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 315 miles?
Y a. 27.7 tons N b. 32.3 tons N c. 36.9 tons N d. 40.4 tons 3621: Your vessel is steering course 216° per standard magnetic compass, variation for the area is 9°W, and deviation is 2°E. The wind is from the east, producing a 5° leeway. What true course are you making good?
N a. 204°T Y b. 214°T N c. 223°T N d. 227°T 11508: At 1014 you depart the entrance to Lake Montauk with light "1" close aboard. Your course is 066° per standard magnetic compass, and the speed is 8.6 knots. At 1232 your position is LAT 41°20.0'N, LONG 71°40.0'W. What is the speed made good?
N a. 8.2 knots Y b. 8.5 knots N c. 8.9 knots N d. 9.2 knots 12209: You sight South West Ledge Light in line with New Haven Outer Channel Range Rear Light bearing 338.5° per standard magnetic compass. What is the deviation?
Y a. 3°E N b. 4°W N c. 6°E N d. 9°W 12210: You sight New Haven Outer Channel Range Rear Light in line with the Outer Channel Range Front Light bearing 343° per standard magnetic compass. What is your compass error?
N a. 5°E N b. 5°W N c. 9°E Y d. 9°W 12709: You are on course 157° per standard magnetic compass when you take the following bearings: Little Gull Island Light 276°psc Race Rock Light 301°psc Latimer Reef Light 028°psc What is your position?
N a. LAT 41°13.5'N, LONG 71°57.9'W Y b. LAT 41°13.5'N, LONG 71°57.4'W N c. LAT 41°13.6'N, LONG 71°57.0'W N d. LAT 41°13.6'N, LONG 71°57.8'W 13106: At 1048 you are in the entrance to Great Salt Pond on Block Island with buoy "5" close aboard. What is your ETA at the west gap of Point Judith Harbor of Refuge if you make good 11.3 knots?
Y a. 1144 N b. 1154 N c. 1159 N d. 1205 13803: NOAA Weather Broadcasts for the New London area may be received by turning your radio to __________.
Y a. 162.550 MHz N b. 162.475 MHz N c. 162.400 MHz N d. 162.350 MHz 15170: From your 2123 position, you are approximately 42 miles from Crisfield, MD. If you are making good a speed of 11 knots, at what time should you arrive at Crisfield, MD?
N a. 2359 N b. 0037 Y c. 0112 N d. 0149 15314: Your gyro and electronic gear are again operating. At 1710, Chesapeake Light bears 137°pgc at 6.6 miles. The current is setting 160°T at 2 knots. At your speed of 6 knots, what is your true course to steer to remain in the inbound traffic lane?
Y a. 269° N b. 265° N c. 261° N d. 250° 15370: If visibility permits, Little Gull Island Light will break the horizon at a range of approximately __________.
N a. 11.1 miles N b. 12.8 miles Y c. 15.6 miles N d. 18.0 miles 15419: The mean high water level at Old Point Comfort is __________.
Y a. 2.6 feet (0.8 meters) N b. 1.2 feet (0.4 meters) N c. 0.0 feet N d. -3.5 feet (-1.1 meters) 15457: What is the distance from Lamberts Point to Thimble Shoal Lt.?
N a. 9.0 miles N b. 9.8 miles N c. 10.6 miles Y d. 11.2 miles 15610: At 1815, your position is LAT 37°01.0'N, LONG 75°42.7'W. If there is no current, what is the course per standard magnetic compass to arrive at a point 0.3 mile due north of North Chesapeake Entrance Lighted Whistle Buoy "NCA"
(LL#375)?
N a. 249.0° N b. 251.5° N c. 255.0° Y d. 257.0° 16043: As you cross the New Haven Outer Channel range, you observe the range in line bearing 335.5° per gyrocompass. The helmsman reports that he was heading 100° per gyrocompass,
and that the standard magnetic compass read 109° at the time of the observation. What are the gyro error and
deviation of the standard magnetic compass on this heading?
N a. Gyro error 2°E, deviation 3°E N b. Gyro error 0° , deviation 2°W N c. Gyro error 2°W, deviation 9°W Y d. Gyro error 2°W, deviation 3°E 16368: Why should mariners use extreme care when navigating within the precautionary area centered on Chesapeake Bay Entrance Junction Lighted Gong Buoy CBJ?
N a. There are numerous underwater obstructions that are a hazard to vessels with drafts exceeding 2 meters (6.5 feet). N b. Fishing vessels of limited maneuverability routinely operate in this area when hunting oyster and crabs. Y c. Vessels may approach from different directions from the inbound separation lanes and from Chesapeake and Thimble Shoal Channel. N d. Large naval vessels having the right of way often enter the area when bound to or from the Norfolk Naval Base. 16444: At 1042 you take the following round of bearings:
Cape Henry Light 259°T
Chesapeake Light 101°T
Cape Charles Light 006°T
From this position, you set course 070°T at a speed of 9.5 knots.
What is the course per standard magnetic compass?
N a. 069.5°psc N b. 060.5°psc Y c. 079.5°psc N d. 080.5°psc 16562: At 1850, you obtain the following bearings and distance:
Block Island North Light 085°T
Watch Hill Light 342°T 5.8 miles
What true speed did you make good between 1830 and 1850?
N a. 2.9 knots N b. 5.7 knots Y c. 8.0 knots N d. 8.7 knots