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.
112: Which of the following statements regarding buoys on the Mississippi River is TRUE?
Y a. Buoys should be given as wide a berth as possible in passing. N b. Buoy positions on the chart are exact. N c. The buoys are maintained on station year round. N d. The buoys do not shift positions due to permanent moorings. 116: At which of the following times would you be able to listen to lower Mississippi River conditions on VHF Channel 22?
N a. 0900 hours N b. 1100 hours Y c. 1300 hours N d. 1700 hours 119: What is the length of the trip?
N a. 405.8 miles N b. 553.0 miles Y c. 904.0 miles N d. 1136.8 miles 153: What is the minimum maintained depth of the channel from Cairo to Baton Rouge during low water?
Y a. 9 feet N b. 12 feet N c. 15 feet N d. 18 feet 197: At 2215, Cape Henry Light bears 242°pgc, Cape Charles Light bears 010.5°pgc, and Chesapeake Channel Tunnel North Light bears 319°pgc. You are heading 271°pgc. What is the relative bearing of Thimble Shoal Light?
Y a. 014° N b. 017° N c. 280° N d. 332° 247: What type of bottom is found at Long Sand Shoal?
N a. Rocky N b. Muddy Y c. Hard N d. Sandy 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 527: You depart LAT 25°54'N, LONG 9°38'E and steam 592 miles on course 270°. What is the longitude of arrival?
N a. 1°20'E N b. 0°40'E N c. 0°40'W Y d. 1°20'W 594: After you get underway, what is the first river gage you will pass?
N a. Head of Passes Y b. Donaldsonville N c. Baton Rouge N d. Red River Landing 1202: Your 0830 DR position is LAT 27°33'S, LONG 79°17'E. Your vessel is on a course of 066°T, at a speed of 19.5 knots. Determine the time of LAN on 10 December .
Y a. 1131 N b. 1136 N c. 1153 N d. 1215 1305: As you approach Ashland Light (mile 378.1 AHP) which daymark would you see?
Y a. Red triangle N b. Red diamond N c. Green square N d. Green diamond 1472: On 9 February , your 0739 zone time DR position is LAT 23°31.0'N, LONG 143°41.0'E. At that time, you observe the Sun bearing 104.5°psc. The chronometer reads 09h 37m 12s, and the chronometer error is 01m 52s slow. The variation is 3.5°W. What is the deviation of the standard magnetic compass?
N a. 1.6°E N b. 2.3°W N c. 5.1°W Y d. 8.6°E 1493: On 11 July , your 0240 ZT position is LAT 14°52'N,
LONG 34°23'W. You observe Polaris bearing 359.8°pgc. At the time of the observation the helmsman noted that he was heading 279°pgc and 299°psc. The variation is 19°W.
What is the deviation for that heading?
Y a. 0° N b. 1°E N c. 1°W N d. 3°W 1541: At 0119, on 10 September, you pass Springfield Bend Lt. (mile 244.8 AHP) and estimate the current will average 2.5 mph for the remainder of your trip. What is your ETA at the mouth of the Ohio River if you are making turns for 8.5 mph?
N a. 1746, 12 September N b. 1244, 13 September Y c. 2329, 14 September N d. 0210, 15 September 1704: Which of the following statements regarding buoys on the Mississippi River is TRUE?
N a. The positions of river buoys can be found in the latest edition of Light List-Vol. V. N b. The buoys are maintained on station year round. Y c. Buoy positions on the chart are approximate. N d. The buoys do not shift positions due to permanent moorings. 1726: The highest point on your towboat is 57 feet above water. The Natchez Gage (mile 363.3 AHP) reads 16.7 feet. What is the vertical clearance when you pass under the Natchez - Vidalia (westbound) Hwy. Bridge?
Y a. 52.3 feet N b. 59.9 feet N c. 61.0 feet N d. 68.6 feet 1767: What is the vertical clearance of the Natchez-Vidalia Highway Bridge when the Natchez-Vidalia Highway Bridge Gage reads 23.4 feet?
Y a. 102.6 ft N b. 108.3 ft N c. 119.5 ft N d. 125.6 ft 2161: On 28 April , your vessel's 0515 zone time position is LAT 23°26'S, LONG 95°30'E. At this time, the observed altitude (Ho) of the star Rigil Kentaurus is 24°51.4'. Your chronometer reads 11h 16m 36s and is 01m 18s fast. What is the intercept (a) based on the assumed position method?
N a. 30.9 miles N b. 32.3 miles N c. 33.1 miles Y d. 34.4 miles 2244: At 1435 ZT, on 27 April , in DR position LAT 51° 56.8' N, LONG 150° 37.7' E, the Moon’s upper limb is observed on the visible horizon, bearing 242.2° psc. Variation is 2° W. What is the deviation?
Y a. 2.2°W N b. 2.2°E N c. 6.2°E N d. 6.2°W 2662: You are on course 006°T, speed 16.6 knots. At 0516 you see a light bearing 008°T at a range of 10.2. If you change course at 0528 to leave the light abeam to port at 1.0 mile,
at what time will the light be abeam?
Y a. 0553 N b. 0556 N c. 0604 N d. 0607 2695: You are underway on course 017°T at a speed of 14.2 knots.
You sight a buoy bearing 025°T at a radar range of 3.7 miles at 1947. If you change course at 1953, what is the course to steer to leave the buoy abeam to starboard at 0.1 mile?
N a. 021°T N b. 024°T Y c. 027°T N d. 030°T 2696: You are underway on course 059°T at a speed of 13.8 knots.
You sight a light bearing 064°T at a radar range of 5.1 miles at 1839. If you change course at 1845, what is the course to steer to leave the light abeam to starboard at 1.0 mile?
N a. 047°T Y b. 050°T N c. 053°T N d. 058°T 2699: You are underway on course 137°T at a speed of 16.2 knots. You sight a rock bearing 134°T at a radar range of 4.6 miles at 1508. If you change course at 1514, what is the course to steer to leave the rock abeam to port at 1.5 miles?
Y a. 162°T N b. 158°T N c. 154°T N d. 151°T 2901: You are steaming on a course of 198°T at 18.5 knots. At 0316 you observe a lighthouse bearing 235°T. At 0348 the lighthouse bears 259°T. What is your distance off at the second bearing?
Y a. 14.8 miles N b. 15.3 miles N c. 15.8 miles N d. 16.3 miles 2910: Your vessel is steaming on a course of 140°T at 15 knots. At 1530 a lighthouse bears 200°T. At 1550 it bears 249°T. What is your distance from the lighthouse at 1550?
N a. 1.15 miles N b. 4.60 miles N c. 5.45 miles Y d. 5.75 miles 3063: The observed distance for a day's run was 302.7 miles. The propeller had a pitch of 20'06", and the average RPM was 67. What was the slip?
N a. +0.7% N b. -0.7% Y c. +7.0% N d. -7.0% 3263: You have steamed 1124 miles at 21 knots, and consumed 326 tons of fuel. If you have 210 tons of usable fuel remaining, how far can you steam at 17 knots?
N a. 1096 miles Y b. 1105 miles N c. 1218 miles N d. 1304 miles 3264: You have steamed 1134 miles at 10 knots, and consumed 121 tons of fuel. If you have to steam 1522 miles to complete the voyage, how many tons of fuel will be consumed while steaming at 12 knots?
N a. 146 tons N b. 189 tons N c. 200 tons Y d. 234 tons 3268: Your vessel arrives in port with sufficient fuel to steam 595 miles at 14 knots. If you are unable to take on bunkers, at what speed must you proceed to reach your next port, 707 miles distant?
N a. 12.2 knots N b. 12.5 knots Y c. 12.8 knots N d. 14.4 knots 3282: While steaming at 16.3 knots, your vessel consumes 363 barrels of fuel oil per day. In order to reduce consumption to 298 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?
N a. 12.6 knots N b. 13.1 knots N c. 14.7 knots Y d. 15.3 knots 3286: While steaming at 14.5 knots, your vessel consumes 242 barrels of fuel oil per day. In order to reduce consumption to 152 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?
N a. 9.1 knots N b. 10.2 knots N c. 11.5 knots Y d. 12.4 knots 3754: Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 014°T, and the variation is 11°E. If the heading of your vessel at the time of the sighting is 009° per standard magnetic compass, what is the correct deviation?
N a. 5°E N b. 5°W N c. 6°E Y d. 6°W 4010: You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2°E. The variation is 8°W. Find the deviation on a magnetic compass heading of 104°.
HEADING HEADING HEADING
PSC PGC PSC PGC PSC PGC
358.5° - 350° 122.5° - 110° 239.5° - 230°
030.5° - 020° 152.0° - 140° 269.0° - 260°
061.5° - 050° 181.0° - 170° 298.0° - 290°
092.0° - 080° 210.0° - 200° 327.5° - 320°
N a. 1.8°E N b. 2.6°E Y c. 2.2°W N d. 2.7°W 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 11505: 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 1230 your position is LAT 41°20.0'N, LONG 71°40.0'W. What is the speed made good?
N a. 8.0 knots N b. 8.3 knots Y c. 8.6 knots N d. 8.9 knots 11901: You are turning for 7.5 knots and a westerly wind is causing 2° of leeway. There is a current of 047°T at 1.2 knots. What course should you steer between the entrance to Quonochontaug Pond (LAT 41°19.8'N, LONG 71°43.2'W) and the entrance to Great Salt Pond (LAT 41°12.0'N,
LONG 71°35.6'W)?
N a. 156°T Y b. 155°T N c. 144°T N d. 140°T 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 12600: You are on course 243° per standard magnetic compass when you take the following bearings: Falkner Island Light 342°psc Mattituck Inlet Light 207°psc Horton Point Light 112°psc What is your position?
N a. LAT 41°05.9'N, LONG 72°32.7'W N b. LAT 41°05.7'N, LONG 72°31.8'W Y c. LAT 41°05.5'N, LONG 72°32.6'W N d. LAT 41°05.3'N, LONG 72°31.9'W 12904: Your 0916 position is LAT 37°10.9'N, LONG 75°29.6'W. You are turning for 12.3 knots. What is your ETA at North Chesapeake Bay Entrance Buoy NCA?
N a. 1035 N b. 1043 Y c. 1051 N d. 1101 13101: At 1523 your position is LAT 41°08.2'N, LONG 71°34.4'W. You are turning for 8.7 knots. What is your ETA at Shagwong Reef Buoy "7SR"?
N a. 1653 N b. 1700 Y c. 1711 N d. 1718 13105: 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 8.3 knots?
N a. 1149 N b. 1154 N c. 1158 Y d. 1203 15211: You have just passed York River Entrance Channel Lighted Buoys "13" and "14". The chart shows a light approximately 1.0 mile off your port beam with a light characteristic "Fl 6 sec". What is the name of this light?
N a. Mobjack Bay Entrance Light N b. New Point Comfort Shoal Light Y c. York Spit Light N d. York River Entrance Channel Light "1" 15267: From your 1210 position, you are making good a course of 083°
T. Your engines are turning RPMs for 10 knots. The set and drift of the current are 310° at 1.7 knots. At what time should you expect to enter the red sector of New London Harbor Light?
Y a. 1243 N b. 1249 N c. 1253 N d. 1301 15416: At 2200, you are in position LAT 36°57.5'N, LONG 76°02.5'W. You intend to travel up the Thimble Shoals auxiliary Channel to Hampton Roads. According to the Coast Pilot,
what is the depth of the auxiliary channel on either side of the main channel?
N a. 28 feet (8.5 meters) Y b. 32 feet (9.8 meters) N c. 36 feet (11.0 meters) N d. 45 feet (13.7 meters) 15438: At 2038 you are on course 272°T when Chesapeake Light is bearing 348° true at a range of 5.3 nm
Based on this fix, which statement is TRUE?
Y a. You are inside a ten fathom depth curve. N b. You are less than five miles from Chesapeake Light. N c. You are 0.6 mile north of a wreck. N d. You are inside the contiguous zone. 15459: At 0823, Old Point Comfort Light bears 000°T at 0.6 mile. What is your 0823 position?
Y a. LAT 36°59.5'N, LONG 76°18.4'W N b. LAT 36°59.0'N, LONG 76°21.6'W N c. LAT 36°59.0'N, LONG 76°19.6'W N d. LAT 36°55.5'N, LONG 76°18.6'W 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 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 15641: You will pass through the Race at approximately the time of maximum ebb current. As you APPROACH the Race from New London, you will be set __________.
Y a. to the left of the track line N b. to the right of the track line N c. forward along the track line N d. towards New London along the track line 15970: If you have 16.3 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 Y c. 6.5 knots N d. 6.9 knots 16510: At 0728, Race Rock Light is bearing 282°T at 3.8 miles,
and the closest point on Fishers Island is at a radar range of 2.0 miles. What speed have you been making since you changed course at 0705?
N a. 9.2 knots Y b. 9.8 knots N c. 10.6 knots N d. 11.4 knots 16563: From your 1850 fix, you come left to a course of 280°T,
while maintaining a speed of 10 knots. Which combination of available Loran-C lines would be best for position determination?
Y a. 9960-Y and 9960-W N b. 9960-X and 9960-Y N c. 9960-W and 9960-X N d. All 3 combinations are equal. 16746: In order to check your compasses, you sight Race Rock Light in line with New London Harbor Light bearing 336° per gyrocompass. The helmsman reports the vessel was heading 275.0°pgc and 290.5° per standard magnetic compass at the time of the observation. Which statement is TRUE?
N a. The gyro error is now 2°E. Y b. The deviation table is correct for that heading. N c. The vessel should be swung to check the deviation table. N d. The compass error is 0.5°W.