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.
127: After entering Milliken Bend (mile 455 AHP) you wish to locate the river service in Madison Parish, Louisiana. The river service is indicated by the square containing which number?
N a. 7 N b. 6 N c. 5 Y d. 4 161: At 1923, on September 21, you pass Bixby Towhead Light (mile 873.7 AHP). What was your average speed since leaving Cairo?
N a. 12.1 mph Y b. 11.3 mph N c. 10.5 mph N d. 9.2 mph 310: A vessel at LAT 28°20'N, LONG 16°00'W is to proceed to LAT 21°00'N, LONG 18°00'W. What is the course and distance by mid-latitude sailing?
Y a. 194.0°T, 453.0 miles N b. 195.2°T, 451.0 miles N c. 196.8°T, 450.0 miles N d. 197.3°T, 448.0 miles 396: A vessel at LAT 10°22.0'S, LONG 7°18.0'E, heads for a destination at LAT 6°52.0'N, LONG 57°23.0'W. Determine the true course and distance by Mercator sailing.
N a. 285°T, 3825.3 miles Y b. 285°T, 4025.7 miles N c. 296°T, 3825.3 miles N d. 296°T, 4025.7 miles 442: Shortly after getting underway, you sight Stonington Outer Breakwater Light in line with Stonington Inner Breakwater Light bearing 000° per gyrocompass. Which statement is TRUE?
N a. The deviation is 2°W N b. The variation is 2°E. N c. The compass error is 16°W. Y d. The gyro error is 2.5°W 442: Shortly after getting underway, you sight Stonington Outer Breakwater Light in line with Stonington Inner Breakwater Light bearing 000° per gyrocompass. Which statement is TRUE?
N a. The deviation is 2°W N b. The variation is 2°E. N c. The compass error is 16°W. Y d. The gyro error is 2.5°W 492: At 0748, you change course to 160°T. What loran reading can you follow to remain on this course?
N a. 9960-W-14660.0 Y b. 9960-W-14651.0 N c. 9960-Y-43943.8 N d. 9960-Y-43852.0 535: You depart LAT 49°38'N, LONG 152°49'E, for LAT 49°38'N, LONG 176°12'E. What are the course and distance by parallel sailing?
Y a. 090°T, 909 miles N b. 090°T, 1204 miles N c. 270°T, 909 miles N d. 270°T, 1204 miles 555: Your 0507 position is about 7 miles from Bridgeport, CT. What is the distance from this position to Newport, RI?
N a. 114 miles N b. 101 miles N c. 95 miles Y d. 88 miles 674: What are the dimensions of the Port Allen Lock at Baton Rouge, LA?
N a. 75 feet x 1188 feet Y b. 84 feet x 1188 feet N c. 84 feet x 1180 feet N d. 75 feet x 1180 feet 734: On 11 March , your 1846 zone time DR position is LAT 25°05.7'N, LONG 124°29.0'W. At that time you observe Polaris with a sextant altitude (hs) of 25°59.1'. The chronometer time of the sight is 02h 44m 01s, and the chronometer error is 02m 15s slow. The index error is 3.9' on the arc, and the height of eye is 42.7 feet (13.0 meters). What is your latitude by Polaris?
N a. 25°14.2'N Y b. 25°17.9'N N c. 25°28.1'N N d. 26°15.2'N 1104: On 19 November , your 0200 zone time DR position is LAT 20°29.0'N, LONG 150°21.3'E. You are on course 136°T at a speed of 18 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0600 running fix. NP-0033
N a. LAT 19°30.1'N, LONG 151°06.0'E N b. LAT 19°31.7'N, LONG 151°04.9'E Y c. LAT 19°33.0'N, LONG 151°10.0'E N d. LAT 19°35.8'N, LONG 151°13.6'E 1248: What is the distance in river miles, from the new mouth of the White River to the Petroleum Fuel & Terminal Co. (mile 144.6 AHP)?
Y a. 454 miles N b. 427 miles N c. 384 miles N d. 370 miles 1274: On 13 February , at 0325 zone time, your DR position is LAT 23°20'N, LONG 155°15'W. You are steering 240°T at a speed of 13.6 knots. What is the zone time of sunrise?
N a. 0652 Y b. 0657 N c. 0706 N d. 0711 1339: At 1300, 5 January, the river will be temporarily closed to navigation for six hours at mile 531.3 AHP due to repairs to a bridge. What minimum speed over the ground must you make from Natchez Gage in order not to be delayed?
N a. 5.7 mph Y b. 6.0 mph N c. 6.8 mph N d. 7.3 mph 1468: On 17 April , your 1516 zone time DR position is LAT 27°24.0'N, LONG 115°24.0'E. At that time, you observe the Sun bearing 247°psc. The chronometer reads 07h 16m 26s, and the chronometer error is 00m 32s slow. The variation is 4.5°E. What is the deviation of the standard compass?
N a. 4.5°W Y b. 5.4°E N c. 6.2°E N d. 6.2°W 1542: You are turning for 6.8 mph and estimate the current at 1.0 mph. What is your speed over the ground?
N a. 6.8 mph Y b. 7.8 mph N c. 8.8 mph N d. 9.4 mph 1662: On 5 September , in DR position LAT 23°17.0'S, LONG 154°35.0'E, you observe an amplitude of the Sun. The Sun's center is on the visible horizon and bears 275° per standard magnetic compass. The chronometer reads 07h 49m 26s and is 01m 52s fast. Variation in the area is 3°W. What is the deviation of the standard magnetic compass?
N a. 2.1°E N b. 2.4°W Y c. 5.1°E N d. 5.4°W 1728: As you approach Canon Point Light (mile 418.3 AHP), what daymark will you see on the light structure?
N a. Green square N b. Green diamond Y c. Red diamond N d. Red triangle 2007: On 4 September , your 1813 zone time DR position is LAT 24°18.0'S, LONG 95°16.0'E. Considering their magnitude, azimuth, and altitude, which group includes the three stars best suited for a fix at star time?
N a. Enif, Miaplacidus, Alkaid N b. Betelgeuse, Acrux, Hamal Y c. Rasalhague, Fomalhaut, Spica N d. Deneb, Altair, Vega 2206: What is the distance in river miles, from the new mouth of the White River to the RR and Hwy bridge at Baton Rouge, LA?
N a. 338 miles Y b. 365 miles N c. 400 miles N d. 454 miles 2336: You have steamed 916 miles at 13 knots, and consumed 166 tons of fuel. If you have to steam 1325 miles to complete the voyage, how many tons of fuel will be consumed while steaming at 14 knots?
N a. 133 tons N b. 181 tons N c. 207 tons Y d. 278 tons 2404: At 0812, you are on course 132°T. The standard magnetic compass reads 135°. What should you conclude?
N a. The deviation table is correct for that heading. Y b. Your compass may be influenced by a local magnetic disturbance. N c. You should adjust the magnetic compass. N d. The deviation is increasing as you go south. 2853: Your vessel is on a course of 343°T at 14 knots. At 2156 a light bears 320.5°T, and at 2217 the light bears 298°T.
At what time and at what distance off will your vessel be when abeam of the light?
Y a. 2232, 3.4 miles N b. 2235, 4.3 miles N c. 2228, 4.9 miles N d. 2241, 6.9 miles 2856: Your vessel is on a course of 034°T at 17 knots. At 0551 a light bears 056.5°T, and at 0623 the light bears 079°T. At what time and at what distance off will your vessel be when abeam of the light?
N a. 0636, 5.9 miles N b. 0646, 5.9 miles N c. 0636, 6.4 miles Y d. 0646, 6.4 miles 2898: You are steaming on a course of 267°T at 22 knots. At 0433 you observe a lighthouse bearing 290°T. At 0452 the lighthouse bears 328°T. What is your distance off at the second bearing?
Y a. 4.5 nm N b. 5.9 nm N c. 6.6 nm N d. 7.2 nm 2906: You are steaming on a course of 211°T at 17 knots. At 0417 a light bears 184°T, and at 0428 the same light bears 168°T. What is the distance off the light at 0428?
N a. 3.4 miles N b. 4.6 miles Y c. 5.1 miles N d. 5.6 miles 3083: The speed necessary to reach port at a designated time is 18.7 knots. The propeller pitch is 24'03", and you estimate 3% positive slip. How many RPM's will the shaft have to turn?
Y a. 81 RPM N b. 87 RPM N c. 98 RPM N d. 104 RPM 3104: You are turning 84 RPM, with a propeller pitch of 22 feet, and an estimated slip of 0%. What is the speed of advance?
N a. 16.8 knots N b. 17.7 knots N c. 18.0 knots Y d. 18.2 knots 3280: While steaming at 14.5 knots, your vessel consumes 319 barrels of fuel oil per day. In order to reduce consumption to 217 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?
N a. 9.8 knots N b. 11.9 knots Y c. 12.8 knots N d. 13.5 knots 3470: You are underway on course 000°Tat 9.5 knots. The current is 082°T at 1.1 knots. What is the speed being made good?
N a. 9.2 knots N b. 9.5 knots Y c. 9.8 knots N d. 10.1 knots 3626: Your vessel is steering course 284°psc, variation for the area is 6°W, and deviation is 3°E. The wind is from the north-northeast, producing a 3° leeway. What true course are you making good?
N a. 275°T Y b. 278°T N c. 284°T N d. 290°T 10301: Determine the course per standard magnetic compass from Cerberus Shoal Buoy 9 (LAT 41°10.4'N, LONG 71°57.1'W) to the entrance to Quonochontaug Pond (LAT 41°19.8'N, LONG 71°43.2'W).
N a. 030°psc N b. 036°psc Y c. 059°psc N d. 067°psc 11403: At 2115 your position is LAT 41°14.4'N, LONG 72°07.2'W. At 0015 your position is LAT 41°03.3'N, LONG 72°37.9'W. What was your true course made good?
N a. 062°T N b. 076°T Y c. 245°T N d. 259°T 12201: Your vessel is steady on a heading of 203° per standard magnetic compass when you sight New Haven Light and New Haven Outer Channel Range Front Light in line over the stern. This information indicates that the __________.
N a. existing deviation table is correct for this heading N b. compass error is 17°W Y c. deviation table is in error for this heading N d. deviation is 1°E 13007: Your 1600 position is LAT 41°08.0'N, LONG 72°44.8'W. You are making turns for 10 knots. What is your ETA at Twenty-Eight Foot Shoal Lighted Buoy "TE" (LAT 41°09.3'N LONG 72°30.5'W)?
N a. 1647 N b. 1651 N c. 1702 Y d. 1706 13808: The chart symbol depicted at LAT 41°13.5'N, LONG 72°29.7'W indicates __________.
N a. the exact position of a dangerous wreck Y b. the approximate position of a wreck dangerous to surface navigation N c. a wreck cleared by wire drag to a depth of 39 feet N d. a wreck not dangerous to surface navigation 14101: What signal is given by air horn to indicate that Bonneville Lock is ready for entrance?
N a. two long blasts N b. two short blasts N c. one short blast Y d. one long blast 14203: What is the vertical clearance of the fixed bridge across the entrance to Rock Creek at Stevenson, Washington?
Y a. 18 feet N b. 36 feet N c. 54 feet N d. 70 feet 15015: At 2100, Cape Charles Light bears 321°pgc, and Cape Henry Light bears 247°pgc. Your latitude is __________.
N a. 37°00.0'N N b. 36°59.7'N Y c. 36°59.4'N N d. 36°59.1'N 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) 15420: You are entering Norfolk Harbor and have just passed Craney Island. Which chart should you use for your final approach into Norfolk Harbor?
N a. 12223 N b. 12238 N c. 12248 Y d. 12253 15518: From your 1930 position, you plot a course to pass 0.5 mile due south of Race Rock Light. If your vessel's speed is 10.0 knots, the current's set and drift are 040°T at 1.8 knots, and a north wind produces a 3° leeway, what true course should you steer to make good your desired course?
N a. 275°T Y b. 280°T N c. 290°T N d. 294°T 15628: The Natchez Gage reads 20.6 feet. The high point on your towboat is 47 feet above the water. What is the vertical clearance as you pass under the Natchez Highway Bridge?
Y a. 58.0 feet N b. 64.1 feet N c. 72.5 feet N d. 78.6 feet 15710: From your 0830 position, you wish to make good 097°T. There is no current, but a southerly wind is producing 3°
leeway. What course should you steer per standard magnetic compass in order to make good your true course?
N a. 118°psc Y b. 115°psc N c. 112°psc N d. 109°psc 16212: What is the course per standard magnetic compass between points "A" and "B"?
N a. 094.5° N b. 095.5° Y c. 098.5° N d. 099.5° 16246: From your 2259 fix, you alter course to 250°T. At 2300 Cape Henry Light bears 250°T. At 2326 Cape Henry Light bears 252°T. Which statement is TRUE?
N a. You are being set to the right. N b. The bearing change should be expected as you transit the inbound lane. Y c. You should alter course to starboard. N d. You should slow to reduce the effect of the current. 16443: As you transit the Chesapeake Bay Bridge and Tunnel, you take a gyro bearing of trestle C when it is in line. The gyro bearing was 050°. At that time, the helmsman noted that he was heading 139°pgc and 146° per standard magnetic compass. What is the deviation?
Y a. 2°E N b. 0° N c. 2°W N d. 4°W 16520: Which chart should you use to enter Great Salt Pond?
N a. 13214 N b. 13205 Y c. 13217 N d. 13207 16846: Your vessel's heading is 330°pgc and 345°psc with a 2°E gyro error. What is the deviation on this heading?
N a. 0° Y b. 3°W N c. 4°E N d. 7°W