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.
58: What daymark will you see as you approach Warnicott Bar Lt. (mile 351.3 AHP)?
N a. Red diamond N b. Red triangle N c. White square Y d. Green square 101: At 1430 on 13 August, you pass Carolina Landing Light (mile 508.8 AHP). What has been the average current since 0230, 13 August if you have been making turns for 8.0 mph?
N a. 8.5 mph N b. 5.7 mph N c. 1.5 mph Y d. 0.5 mph 106: You are steaming at 22 knots and burning 319 barrels of fuel per day. You must decrease your consumption to 137 barrels per day. What must you reduce your speed to in order to burn this amount of fuel?
N a. 12.4 N b. 14.8 Y c. 16.6 N d. 18.2 110: As you pass under the Baton Rouge RR and Highway 190 bridge you receive a call from another tow upriver. What channel on the VHF should you be monitoring?
N a. 1 Y b. 13 N c. 16 N d. 67 166: If the Bayou Sara Gage reads -0.5 feet, the Low Water Reference Plane is 5.25. What is the water level in relation to the low water reference plane?
N a. 0.5 foot below the plane N b. 0.5 foot above the plane N c. 5.25 feet above the plane Y d. 5.75 feet below the plane 267: At 0802, Branford Reef Light bears 348°T at 0.75 mile, and the north point of Falkner Island bears 088°T at 6.7 miles. What were the set and drift since 0740?
N a. Set 040°T, drift .2 knot N b. Set 220°T, drift .2 knot Y c. Set 220°T, drift .6 knot N d. You are making good your intended course and speed. 281: What is the average velocity of the maximum flood current at the Tail of the Horseshoe?
N a. 1.6 knot N b. 1.3 knot Y c. 0.9 knots N d. 0.6 knots 283: At 1810, you sight a buoy on your starboard side labeled "19". This buoy marks __________.
Y a. the side of York Spit Channel N b. the visibility limit of the red sector of Cape Henry Light N c. the end of York Spit Channel N d. the junction of the York Spit and York River Entrance Channels 397: Your vessel departs LAT 32°45'N, LONG 79°50'W, and is bound for LAT 34°21'S, LONG 18°29'E. Determine the distance by Mercator sailing.
N a. 5,021 miles Y b. 6,884 miles N c. 6,954 miles N d. 7,002 miles 427: Assuming no current, at what time can you expect to be abeam of Townshend Ledge Lighted Buoy?
Y a. 0910 N b. 0905 N c. 0902 N d. 0859 439: At 0337, fog closes in and you anchor under the following radar ranges and bearing:
South tip of Watch Hill Point 3.0 miles
East point of Fishers Island 1.4 miles
Latimer Reef Light 331°T
What is the approximate depth of water at your anchorage?
N a. 135 feet (40.9 meters) N b. 120 feet (36.4 meters) Y c. 100 feet (30.3 meters) N d. 83 feet (25.2 meters) 845: On 16 September , your 0600 ZT fix gives you a position of LAT 29°47.2'N, LONG 65°28.4'W. Your vessel is on course 242°T and your speed is 13.5 knots. Local apparent noon (LAN) occurs at 1227 ZT, at which time a meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 63°25.3'. What is the calculated latitude at LAN?
N a. 29°07.9'N N b. 29°06.1'N Y c. 29°04.7'N N d. 29°01.6'N 1096: On 24 October , your 0100 DR position is LAT 27°42'N, LONG 158°35'E. You are on course 085°T at a speed of 12 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0700 running fix. NP-0026
N a. LAT 27°48.8'N, LONG 160°12.5'E N b. LAT 27°52.5'N, LONG 160°18.2'E Y c. LAT 27°56.0'N, LONG 159°47.3'E N d. LAT 27°58.4'N, LONG 159°43.5'E 1142: At 1132, 24 May, you pass Natchez Beam Lt. (mile 364.8 AHP). What is your ETA off the Memphis Gage if you average 8.0 mph?
N a. 2345, 25 May Y b. 0947, 26 May N c. 1525, 26 May N d. 2215, 26 May 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 1751: At 1118, on 24 May, you pass Natchez Gage and estimate the current will average 3.0 mph for the remainder of the time on the Mississippi River. What is your ETA at Cairo, IL if you continue to turn for 10 mph?
N a. 0840, 26 May N b. 2218, 26 May Y c. 2339, 27 May N d. 0339, 28 May 1778: At 2234 ZT, on 14 July , in DR position LAT 34°03'N, LONG 150°16'W you observe an amplitude of Saturn. The planet is about one Sun's diameter above the visible horizon and bears 272.1°pgc. The variation is 14°E. What is the gyro error?
N a. 0.5°W N b. 0.5°E Y c. 1.5°W N d. 2.5°E 1780: At 1523 ZT, on 14 June , in DR position LAT 31°58'S, LONG 48°42'W you observe an amplitude of the Moon. The center of the Moon is on the visible horizon and bears 118.0°psc. The variation is 10°W. What is the deviation?
N a. 2.5°W Y b. 2.1°W N c. 1.7°W N d. 1.7°E 1852: On 26 November , at 0535 ZT, while taking sights for a morning fix, you observe an unidentified planet bearing 074°T at an observed altitude (Ho) of 38°29.8'. Your DR position is LAT 27°18.9'S, LONG 30°18.4'E. The chronometer time of the sight is 03h 33m 16s, and the chronometer is 01m 48s slow. What planet did you observe?
Y a. Saturn N b. Jupiter N c. Mars N d. Venus 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 2100: From your 2118 position, you are steering 288°T at an engine speed of 7.0 knots. If visibility is suddenly reduced to 2 miles, at what time can you expect Old Point Comfort Light to become visible again?
N a. The light is visible at 2118. N b. 2155 N c. 2220 Y d. 2232 2118: You are northwest of Port Jefferson Harbor steering 242°
per standard magnetic compass. As you continue westward, you see that the Port Jefferson Range Front Light and Rear Light come into line. If the deviation table is correct, the bearing of the range should be __________.
N a. 140°psc N b. 146°psc Y c. 157°psc N d. 160°psc 2595: At 0145 you take on the pilot and are inbound Port Jefferson. The ship's heading is 147°pgc when lined up on the Port Jefferson range. What is your gyro error?
Y a. 1° W N b. 1° E N c. 2° E N d. 0° 2683: You are underway on a course of 135°pgc at 15 knots, and you sight a lighthouse dead ahead at a range of 12.5 miles at 1145. What course would you steer to leave the lighthouse 3.0 miles off your port beam?
N a. 117°pgc N b. 121°pgc Y c. 149°pgc N d. 154°pgc 2879: Your vessel is steering 354°T at 14 knots. At 0317 a light bears 049°T, and at 0342 the same light bears 071°T. What will be your distance off abeam?
Y a. 12.4 miles N b. 12.7 miles N c. 13.0 miles N d. 13.3 miles 2895: You are steaming on a course of 246°T at 17 knots. At 2107 you observe a lighthouse bearing 207°T. At 2119 the lighthouse bears 179°T. What is your distance off at the second bearing?
N a. 3.9 miles N b. 4.2 miles Y c. 4.6 miles N d. 5.1 miles 3097: If the pitch of the propeller is 19.4 feet, and the revolutions per day are 96,713, calculate the day's run allowing 6% positive slip.
N a. 266.4 miles Y b. 290.1 miles N c. 308.6 miles N d. 327.1 miles 3112: While enroute from Montevideo to Walvis Bay a vessel's course is 116°psc. The variation for the locality is 25°W and the deviation is 6°W. What is the true course made good if a southerly wind produces 1° leeway?
Y a. 084°T N b. 086°T N c. 148°T N d. 085°T 3273: Your vessel arrives in port with sufficient fuel to steam 1175 miles at 19 knots. If you are unable to take on bunkers, at what speed must you proceed to reach your next port, 1341 miles distant?
N a. 16.7 knots N b. 17.3 knots Y c. 17.8 knots N d. 19.4 knots 3770: You wish to check the deviation of your standard magnetic compass. You find a natural range that you steer for and note that the gyrocompass heading is 034°, and the heading by standard magnetic compass is 026°. The gyro error is 1°W. Variation is 9°E. What is the deviation for that heading?
Y a. 2°W N b. 0° N c. 2°E N d. 9°E 4012: You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2°W. The variation is 8°W. Find the deviation on a magnetic compass heading of 210°.
HEADING HEADING HEADING
PSC PGC PSC PGC PSC PGC
358.5° - 354° 122.5° - 114° 239.5° - 234°
030.5° - 024° 152.0° - 144° 269.0° - 264°
061.5° - 054° 181.0° - 174° 298.0° - 294°
092.0° - 084° 210.0° - 204° 327.5° - 324°
Y a. 0.0° N b. 0.5°W N c. 0.5°E N d. 1.0°E 10703: At 1516 your position is LAT 41°11.3'N, LONG 71°48.6'W. You are on course 300° per standard magnetic compass at 9.4 knots. At 1600 your position is LAT 41°14.0'N, LONG 71°58.1'W. What were the set and drift?
N a. 142°T at 1.9 knots N b. 153°T at 1.4 knots Y c. 332°T at 1.5 knots N d. 347°T at 1.1 knots 10908: What is the velocity of the first maximum flood current in Lynnhaven Roads on 23 July 1983?
Y a. 0.4 knot N b. 0.5 knot N c. 0.8 knot N d. 1.3 knots 11401: At 1520 your GPS position is LAT 41°13.1'N, LONG 72°16.1'W. At 1630 your position is LAT 41°17.5'N, LONG 72°04.7'W. What were your true course and speed made good?
N a. 344° at 8.2 knots N b. 077° at 9.5 knots Y c. 063° at 8.3 knots N d. 059° at 8.1 knots 12612: You are on course 242° per standard magnetic compass (psc) when you take the following bearings: Stratford Point Light 325°psc Old Field Point Light 239°psc Middle Ground Light 270°psc What is your position?
N a. LAT 41°04.4'N, LONG 72°59.5'W Y b. LAT 41°05.1'N, LONG 72°59.3'W N c. LAT 41°05.4'N, LONG 73°00.1'W N d. LAT 41°04.8'N, LONG 73°59.3'W 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 14003: At 1430 your vessel passes under the Interstate 5 highway bridge east bound. Your engines are making RPM's for 12 mph. If the current is ebbing at 3 mph, what is your ETA at Bonneville Lock?
N a. 1744 N b. 1753 N c. 1834 Y d. 1848 15062: If there is no current, what is the course per standard magnetic compass from your 0802 fix to a position 1.1 miles north of Falkner Island Light?
N a. 064°psc N b. 068°psc N c. 091°psc Y d. 095°psc 15120: If you have 17.3 miles to reach your destination from your 2000 position and want to be there at 2230, what speed should you make good?
N a. 5.7 knots N b. 6.1 knots N c. 6.5 knots Y d. 6.9 knots 15158: At 1630, you reach point "A" and come right to 204°T. Your engine speed is 12 knots. Your 1715 position is LAT 37°09.8'N, LONG 75°37.4'W. The current was __________.
N a. 067°T at 1.1 knots Y b. 067°T at 1.5 knots N c. 247°T at 1.1 knots N d. 247°T at 1.6 knots 15264: 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. What will serve to keep your vessel in safe water and away from these hazards?
N a. Maintaining a 7 nm range off Orient Point Y b. Danger bearing to Black Point of not more than 064°T N c. A bearing to Little Gull Island Light of not less than 090° N d. A distance to Saybrook Breakwater Light of not less than 1.3 miles 15315: At 1810, you obtain the following radar reading:
Cape Henry Light bearing 252.5° true @4.0 nm
What is your position?
N a. LAT 36°56.0'N, LONG 75°58.5'W N b. LAT 36°55.4'N, LONG 75°56.0'W N c. LAT 36°54.9'N, LONG 75°53.8'W Y d. LAT 36°56.8'N, LONG 75°55.6'W 15470: At 1119, Wolf Trap Light bears 268°T at 4.4 miles by radar. What were the set and drift since your 1037 fix?
N a. 178°, 0.5 knot N b. 358°, 0.5 knot N c. 178°, 0.7 knot Y d. 358°, 0.7 knot 15810: You alter course from your 0045 position to head for a point 0.5 mile north of Mattituck Breakwater Light "MI". If the visibility is 10 miles and you make good 9 knots, at approximately what time will you lose sight of Saybrook Breakwater Light?
N a. You have already lost sight at 0045 Y b. 0055 N c. 0120 N d. The light is visible all the way to Mattituck Inlet 15814: At 0130, you obtain the following bearings:
Horton Point Lighthouse 078°T
Mattituck Breakwater Light tower 196°T
What were the course and speed made good between 0100 and 0130?
Y a. 246°T at 9.8 knots N b. 253°T at 9.4 knots N c. 259°T at 9.8 knots N d. 267°T at 9.4 knots 16345: Where will you cross the demarcation line between the International and Inland Rules of the Road?
N a. Between Montauk Point and Block Island Y b. In the Race N c. At the mouth of Bridgeport Harbor N d. Between Plum Gut and Niantic Bay 16418: At 2100, you set course of 000°T, speed 10 knots from LAT 41°07.0'N, LONG 71°30.0'W. Visibility is 5.5 n.m. What is the earliest time you can expect to sight Point Judith Light? (Use charted range of 20 miles as nominal range.)
N a. The light is visible at 2100. Y b. 2114 N c. 2123 N d. 2131 16420: If you want to put into Point Judith Harbor of Refuge, what chart should you use?
N a. 13205 N b. 13209 N c. 13217 Y d. 13219 16520: Which chart should you use to enter Great Salt Pond?
N a. 13214 N b. 13205 Y c. 13217 N d. 13207 16720: In order to check your compasses, you sight North Dumpling Island Light in line with Latimer Reef Light bearing 074°
pgc. The helmsman was steering 303°pgc and 315° per standard magnetic compass at the time. Which of the following is TRUE?
Y a. The gyro error is still 2°E. N b. The deviation based on the observation is 15°W. N c. The magnetic compass error is 12°W. N d. The true line of the range is 072°.