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.
41: The Delta-Friar Point revetment on the LMR extends from mile __________.
N a. 648.5 - 645.5 LDB N b. 652.8 - 649.6 RDB Y c. 657.3 - 652.2 LDB N d. 645.6 - 641.4 RDB 55: After you get underway, what is the first river gage you will pass?
Y a. Bayou Sara N b. Baton Rouge N c. Head of Passes N d. Red River Landing 193: If the visibility is 3 miles, at what range will you lose sight of Chesapeake Light?
N a. The light has never been visible. N b. 4.6 miles N c. 6.4 miles Y d. 8.3 miles 229: If you want a more detailed chart of the area at your 2115 DR position, which chart should you use?
N a. 12222 N b. 12225 Y c. 12224 N d. 12222 238: At 0910, your DR position is LAT 41°11.9'N, LONG 72°47.8'W. Your vessel is on course 097°T at 9.5 knots, and the weather is foggy. At 0915, Branford Reef Light is sighted through a break in the fog bearing 318°T. At 0945, Falkner Island Light is sighted bearing 042°T. What is your 0945 running fix position?
N a. LAT 41°11.1'N, LONG 72°41.2'W N b. LAT 41°11.3'N, LONG 72°41.3'W Y c. LAT 41°11.5'N, LONG 72°40.7'W N d. LAT 41°11.8'N, LONG 72°40.2'W 298: 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?
Y a. York Spit Light N b. New Point Comfort Shoal Light N c. Mobjack Bay Entrance Light N d. York River Entrance Channel Light "1" 302: A vessel steams 720 miles on course 058°T from LAT 30°06.0'S, LONG 31°42.0'E. What are the latitude and longitude of the point of arrival by mid-latitude sailing?
N a. LAT 23°48'S, LONG 43°11'E Y b. LAT 23°44'S, LONG 43°07'E N c. LAT 23°38'S, LONG 43°03'E N d. LAT 23°34'S, LONG 43°00'E 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 376: You depart LAT 40°42.0'N, LONG 74°01.0'W, and steam 3365.6 miles on course 118°T. What is the longitude of your arrival by Mercator sailing?
N a. 24°29.0'W N b. 22°58.0'W Y c. 17°41.0'W N d. 10°46.0'W 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 453: Determine the great circle distance and initial course from LAT 08°36.0'N, LONG 126°17.0'E to LAT 02°12.0'S, LONG 81°53.0'W.
N a. 9015 miles, 067°T N b. 9076 miles, 067°T N c. 9105 miles, 079°T Y d. 9076 miles, 079°T 538: Determine the distance from LAT 23°24'S, LONG 13°54'E to LAT 23°24'S, LONG 42°48'W. by parallel sailing.
N a. 3119.3 miles Y b. 3122.2 miles N c. 3124.5 miles N d. 3126.6 miles 561: At 0615 you change course to 078°T. If there is no current, when will Falkner Island Light be abeam?
Y a. 0730 N b. 0735 N c. 0743 N d. 0750 581: At 1119, Wolf Trap Light bears 268°T at 4.4 miles by radar. What were the set and drift since your 1037 fix?
Y a. 358°, 0.7 knot N b. 358°, 0.5 knot N c. 178°, 0.7 knot N d. 178°, 0.5 knot 636: As you approach Dean Island Light (mile 754.8 AHP), which type of daymark will be observed at the light?
N a. Green triangle N b. Red and green banded square N c. Green square daymark Y d. Diamond-shaped green daymark 816: On 15 November , your 0813 zone time (ZT) fix gives you a position of LAT 22°30.0'N, LONG 67°28.0'W. Your vessel is on course 164°T, and your speed is 13.5 knots. Local apparent noon (LAN) occurs at 1215 ZT, at which time a meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 49°46.0'. What is the latitude at 1200 ZT?
Y a. 21°42.5'N N b. 21°39.3'N N c. 21°36.0'N N d. 21°32.8'N 1076: On 25 Mar , your 0500 ZT DR position is LAT 28°14.0'S, LONG 93°17.0'E. You are on course 291°T at a speed of 16.0 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0550 running fix. NP-0006
Y a. LAT 28°15.9'S, LONG 92°56.9'E N b. LAT 28°19.3'S, LONG 92°59.0'E N c. LAT 28°06.4'S, LONG 93°02.5'E N d. LAT 27°53.2'S, LONG 93°17.6'E 1097: On 9 November , your 0400 DR position is LAT 18°24.0'S, LONG 97°36.0'W. You are on course 138°T at a speed of 16 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0600 running fix. NP-0027
N a. LAT 18°15.0'S, LONG 98°52.5'W Y b. LAT 18°45.0'S, LONG 97°06.8'W N c. LAT 18°52.5'S, LONG 97°10.6'W N d. LAT 19°15.5'S, LONG 98°08.8'W 1197: On 16 November , your 0800 ZT DR position is LAT 25°11.0'N, LONG 117°41.0'W. Your vessel is on a course of 252°T at a speed of 14.5 knots. What is the ZT of local apparent noon (LAN)?
N a. 1135 Y b. 1139 N c. 1143 N d. 1146 1232: The Vaucluse Trench fill revetment on the LMR extends from mile __________.
N a. 524.3 - 522.6 RDB Y b. 535.6 - 532.9 RDB N c. 535.9 - 534.3 LDB N d. 534.3 - 532.6 LDB 1233: What is the distance from Greenville, MS, to Tiptonville, TN on the Mississippi River System?
N a. 95 miles N b. 136 miles Y c. 341 miles N d. 520 miles 1266: On 1 December , your 1600 ZT DR position is LAT 22°48.0'S, LONG 91°26.0'E. You are on course 327°T at a speed of 16 knots. What will be the zone time of sunset at your vessel?
N a. 1823 Y b. 1827 N c. 1831 N d. 1847 1284: On 10 November , your 1630 zone time DR position is LAT 25°10.0'N, LONG 71°12.0'W. You are on course 335°T at a speed of 24 knots. What will be the zone time of sunset at your vessel?
N a. 1650 Y b. 1700 N c. 1715 N d. 1730 1409: As you pass Solitude Lt. (mile 249.0 AHP) which dayboard would you see?
N a. Green square Y b. Green diamond N c. Red triangle N d. Red diamond 1501: On 3 October , your 0330 zone time (ZD + 5) DR position is LAT 47°41'N, LONG 86°49'W. At that time, you observe Polaris bearing 357.5°pgc. The chronometer time of the observation is 08h 32m 04s, and the chronometer is 0m 27s slow. The variation is 5.5°W. What is the gyro error?
N a. 7.5°E N b. 5.0°E N c. 3.5°E Y d. 2.0°E 1685: As you approach Buckridge Light (mile 412.5 AHP), which type of daymark would you see on the light structure?
N a. Red square N b. Green square N c. Red diamond Y d. Green diamond 1727: You pass under the Natchez bridge (mile 363.3 AHP) at 1300, on 27 March, and estimate the current to be 3.3 mph. What is your ETA at St. Louis if you continue to turn for 7.5 mph?
N a. 0617, 4 April Y b. 0316, 4 April N c. 1153, 30 March N d. 1253, 31 April 1951: 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 1961: The Delta-Friar Point revetment on the LMR extends from mile __________.
Y a. 657.3 - 652.2 LDB N b. 652.8 - 649.6 RDB N c. 648.5 - 645.5 LDB N d. 645.6 - 641.4 RDB 2162: On 5 April , at 0509 zone time, morning stars were observed and the vessel's position was LAT 28°32'N, LONG 177°13.0'W. Your vessel is steaming at 19.0 knots on a course of 258°T. A sextant observation of the Sun's lower limb is made at 1021 zone time. The chronometer reads 10h 20m 09s, and the sextant altitude (hs) is 58°06.6'. The index error is 1.0' off the arc, and the chronometer error is 00m 54s slow. Your height of eye on the bridge is 55.0 feet. What is the azimuth (Zn) of this sight using the assumed position?
N a. 125.8°T N b. 128.8°T Y c. 129.2°T N d. 130.2°T 2205: What are the dimensions of Old River Lock, on the Lower Mississippi River?
N a. 1202 feet x 84 feet Y b. 1190 feet x 75 feet N c. 760 feet x 75 feet N d. 425 feet x 75 feet 2871: Your vessel is on a course of 052°T at 16 knots. At 0916 a light bears 078.5°T, and at 0927 the light bears 097°T.
At what time and at what distance off will your vessel be when abeam of the light?
N a. 0929, 2.0 miles N b. 0932, 2.3 miles N c. 0935, 2.6 miles Y d. 0938, 2.9 miles 3052: The propeller on a vessel has a diameter of 21.2 feet and a pitch of 20.0 feet. What would be the apparent slip if the vessel cruised 391 miles in a 24 hour day (observed distance) at an average RPM of 88?
N a. -11.5% N b. +11.5% N c. -6.2% Y d. +6.2% 3269: Your vessel arrives in port with sufficient fuel to steam 812 miles at 15 knots. If you are unable to take on bunkers, at what speed must you proceed to reach your next port, 928 miles distant?
N a. 13.6 knots Y b. 14.0 knots N c. 15.3 knots N d. 15.7 knots 3281: While steaming at 15.7 knots, your vessel consumes 329 barrels of fuel oil per day. In order to reduce consumption to 267 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?
N a. 12.7 knots N b. 13.5 knots Y c. 14.6 knots N d. 15.5 knots 3642: You are steering 154° per gyrocompass. The wind is northeast by east, causing 4° leeway. The gyro error is 3° east, variation is 11° west, and deviation is 7°E. What is the true course made good?
N a. 151°T N b. 158°T Y c. 161°T N d. 164°T 3753: Your vessel is proceeding up a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 343°T, and the variation is 5° west. If the heading of your vessel at the time of the sighting is 344° per standard magnetic compass, what is the correct deviation?
N a. 1°E N b. 1°W Y c. 4°E N d. 4°W 11304: At 1422 your GPS position is LAT 37°07.5'N, LONG 75°39.1'W. At 1549 your position is LAT 36°57.0'N, LONG 75°41.0'W. What was the course made good between the fixes?
N a. 185°T Y b. 188°T N c. 194°T N d. 198°T 13005: At 1715 your position is LAT 41°00.0'N, LONG 72°40.0'W. You are making turns for 15.5 knots. What is your ETA at a position 1.5 miles due south of Stratford Shoal Middle Ground Light?
N a. 1820 N b. 1824 N c. 1828 Y d. 1832 13107: At 1103 your position is LAT 41°12.5 N, LONG 71°37.4 W. What is your ETA at the west gap of Point Judith Harbor of Refuge if you make good 11.3 knots?
N a. 1144 N b. 1154 Y c. 1159 N d. 1205 13409: You plan to anchor your vessel at LAT 41°00.5'N, LONG 73°02.8'W. What type of bottom should you expect at this position?
N a. Gray sand Y b. Soft mud N c. Hard sand N d. Gray mud 13801: You are operating in the area approximately 2 miles southeast of Kelsey Point when you realize that your vessel's intended track will carry you over the wreck charted at LAT 41°13.5'N, LONG 72°29.6'W. Which statement is TRUE?
N a. The chart indicates the exact position of the wreck. N b. The wreck has been cleared by wire drag to a depth of 39 ft. Y c. The wreck represents a danger to surface navigation. N d. The wreck is visible above the sounding datum. 15014: If you make good 12 knots, what is the ETA at North Chesapeake Channel Entrance Buoy "NCA" (LL #375)?
N a. 2116 Y b. 2111 N c. 2106 N d. 2101 15066: If you correct for the current in the preceding question (035°T at 0.5 knot) and maintain an engine speed of 7.5 knots, what is your ETA 0.5 mile south of buoy "W"?
N a. 1016 Y b. 1021 N c. 1026 N d. 1030 15268: Your vessel is proceeding up New London Harbor Channel, and you are in line with the range. What would be your course per standard magnetic compass?
N a. 352° N b. 354° N c. 002° Y d. 007° 15725: At 1723 you increase speed to make good 9.2 mph. At 1937 you have a daymark on your port beam. What daymark is this?
N a. Tiptonville Ferry Landing Daymark N b. Tiptonville Light Y c. Merriwether Bend Light and Daymark N d. Alaska Light and Daymark 15764: From your 0715 position, you set a course of 085°T. At 0745, you take the following bearings:
Race Rock Light 274°pgc
Watch Hill Point Light 045°pgc
Fisher's Island East Harbor Cupola 006°pgc
What was the current encountered between 0715 and 0745?
N a. Set 030°T, drift 0.4 knot Y b. Set 070°T, drift 0.7 knot N c. Set 210°T, drift 0.8 knot N d. Set 238°T, drift 1.0 knot 15817: The south coast of Long Island Sound between Mattituck Inlet and Port Jefferson is __________.
N a. composed of high rocky bluffs N b. a high, flat plateau with sheer cliffs Y c. fringed by rocky shoals N d. low and marshy with isolated beaches 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 16119: At 0812, you obtain the following radar information:
Cape Henry Light bearing 287° pgc @ 3.85 nm
What is your 0812 position?
N a. LAT 36°53.7'N, LONG 75°56.0'W N b. LAT 36°53.8'N, LONG 75°56.1'W N c. LAT 36°54.5'N, LONG 75°56.2'W Y d. LAT 36°54.6'N, LONG 75°55.8'W