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.
40: Which of the following statements regarding aids to navigation shown in the Army Corps. of Engineers map book is TRUE?
N a. The U.S. Army Corps.. of Engineers is responsible for placing and maintaining all aids to navigation. N b. Buoy positions as shown on the chart are exact. Y c. Buoys should always be given as wide a berth as possible. N d. Lights and daymarks are always shown in their exact location. 66: At 2126, you pass Morganza Bend Light (mile 278.4 AHP). At 0122, 4 January, you pass Red River Landing Gage (302.4 AHP). You have been turning for 7.5 mph. What is the current?
N a. 6.2 mph N b. 2.7 mph N c. 1.8 mph Y d. 1.4 mph 93: Which light characteristics does Quaker Oats Light (mile 952.6) have?
N a. 1 red flash every four seconds N b. 2 green flashes every 5 seconds N c. 2 red flashes every 4 seconds Y d. 2 red flashes every 5 seconds 124: 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 Y c. 1757 on 16 May N d. 2236 on 16 May 230: At 2123, your position is LAT 37°20.0'N, LONG 76°03.0'W. What is your distance offshore of Savage Neck?
Y a. 1.7 miles N b. 2.6 miles N c. 3.4 miles N d. 4.6 miles 321: 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. 45 feet (13.7 meters) N b. 36 feet (11.0 meters) Y c. 32 feet (9.8 meters) N d. 28 feet (8.5 meters) 426: The broken magenta line which runs parallel to the shore between Roanoke Point and Mattituck Inlet marks a __________.
Y a. fish trap area N b. pipeline N c. demarcation line N d. cable area 434: As you enter the New Haven Outer Channel, you sight the outer range markers in line directly ahead. Your heading at this time is 347°psc. What is your compass deviation by observation?
N a. 4.5°West N b. 3.5°West N c. 3.0°East Y d. 0.5°East 446: At 1345, you depart from a position 1 mile due east of Montauk Point Light and set course for Block Island Southeast Light at 9 knots. At 1430, your position is:
Latitude 41° 06.3' North
Longitude 071° 41.9' West
What was the current encountered since 1345?
N a. Set 015°, drift 0.5 knot N b. Set 195°, drift 0.7 knot N c. Set 015°, drift 0.7 knot Y d. Set 195°, drift 0.5 knot 476: The great circle distance from LAT 35°08.0'S, LONG 19°26.0'E to LAT 33°16.0'S, LONG 115°36.0'E is 4559 miles and the initial course is 121°T. Determine the longitude of the vertex.
N a. 26°50.9'E Y b. 65°45.9'E N c. 69°19.1'E N d. 72°18.3'E 548: You are bound for New London. Where will you cross the demarcation line and be governed by the Inland Rules of the Road?
N a. You are already governed by the Inland Rules. N b. Above the Thames River Bridge Y c. In the Race N d. You will not be governed by the Rules. 596: At 0921, on 24 July, you are abreast the St. Catherine Bar Lt. (mile 348.6 AHP). If you are turning for 10.0 mph, what was the current since departure?
N a. 1.4 mph Y b. 1.7 mph N c. 2.0 mph N d. 7.0 mph 656: You are planning a voyage by great circle to Reykjavik, Iceland, via Cape Race, Newfoundland, LAT 46°30'N, LONG 53°00'W. Which statement is TRUE? (Use gnomonic tracking chart WOXZC 5274)
N a. The track line will be concave to Cape Farewell (Kap Farvel) when plotted on a Mercator chart. Y b. You will reach the northernmost latitude in the vicinity of Reykjavik. N c. The distance is measured using the length of a degree of latitude at the mid-latitude and mid-longitude position. N d. The Northern Hemisphere vertex is in the vicinity of 49°W longitude. 675: You are planning a voyage from Godthab, Greenland, to Cayenne, French Guiana. Using chart WOXZC 5274, determine which statement is TRUE.
N a. Godthab is located at the Northern Hemisphere vertex. Y b. The rhumb line track approximates a great circle track. N c. A great circle track will be considerably shorter due to the length of the voyage. N d. Distance is measured by using the length of meridian at the point of tangency. 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 1272: At 1800 zone time, on 7 December , your DR position is LAT 22°48'S, LONG 91°26'W. You are steering 320°T at a speed of 14.0 knots. What is the zone time of sunset?
N a. 1830 N b. 1836 Y c. 1842 N d. 1852 1675: On 28 November , your vessel's 0652 DR position is LAT 37°30'N, LONG 124°12'W, when an amplitude of the Sun is observed. The Sun's center is on the visible horizon and bears 103° per standard magnetic compass. Variation in the area is 16.3°E. The chronometer reads 02h 54m 18s and is 02m 06s fast. What is the deviation of the compass?
Y a. 2.5°W N b. 3.0°W N c. 2.0°E N d. 3.0°E 1725: As you pass Fort Adams (311.4 AHP) you observe a flashing amber light on the right descending bank ahead. This indicates that you should __________.
N a. proceed with caution as there is construction work being done on the revetment N b. keep as close to the right descending bank as safety permits Y c. keep as close to the left descending bank as safety permits N d. proceed with caution as the river is congested around the bend 1730: What is the distance from Arkansas City, AR, to St. Louis, MO, on the Mississippi River System?
Y a. 584 miles N b. 617 miles N c. 733 miles N d. 832 miles 1801: What is the distance from the Amoco Docks at Baton Rouge, LA, to the new mouth of the White River?
N a. 981.5 miles N b. 953.5 miles Y c. 345.3 miles N d. 700.2 miles 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 1860: On 22 March , your 1834 ZT DR position is LAT 26°13.5'S, LONG 108°36.5'W. You observe an unidentified star bearing 077°T, at an observed altitude (Ho) of 43°10.5'. The chronometer reads 01h 32m 37s and is 01m 50s slow. What star did you observe?
N a. Regulus N b. Menkar N c. Rigel Y d. Alphard 2024: On 3 December , evening twilight for your vessel will occur at 1901 zone time. Your vessel's DR position for this time will be LAT 24°18.5'S, LONG 110°30.6'W. Considering their magnitude and location, what are the three stars best suited to observe for a fix at star time?
N a. Canopus, Hamal, Deneb Y b. Alpheratz, Achernar, Nunki N c. Antares, Fomalhaut, Mirfak N d. Rigel, Canopus, Regulus 2027: At 0645, on the 17th of April, you pass Hole in the Wall Lt. (mile 373.4 AHP). What has been your average speed since departing the Exxon Refinery?
N a. 5.8 mph Y b. 6.3 mph N c. 6.7 mph N d. 7.1 mph 2105: You are southeast of Saybrook Breakwater Light passing Saybrook Bar Lighted Bell Buoy "8". This buoy marks __________.
Y a. shoal water N b. a tide rips area N c. the junction with the Connecticut River N d. a sunken wreck 2163: On 1 April , at 0515 zone time, morning stars were observed, and the vessel's position was determined to be LAT 27°05.0'N, LONG 16°30.0'W. Your vessel is steaming at 19.0 knots on a course of 022°T. A sextant observation of the Sun's lower limb is made at 0930 zone time. The chronometer reads 10h 28m 25s, and the sextant altitude is 46°20.3'. The index error is 4.5' off the arc, and the chronometer error is 02m 15s slow. Your height of eye on the bridge is 57.0 feet. What is the azimuth (Zn) of this sight using the assumed position?
N a. 121.6°T N b. 117.9°T Y c. 115.0°T N d. 112.2°T 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 2782: What is your ETA at the Helena Highway Bridge?
Y a. 1335, 24 Sept N b. 1109, 24 Sept N c. 0926, 24 Sept N d. 0458, 24 Sept 2852: Your vessel is on a course of 129°T at 13 knots. At 1937 a light bears 151.5°T. At 2003 the light bears 174°T. At which time and distance off will your vessel be when abeam of this light?
N a. 2016, 2.8 miles N b. 2016, 3.9 miles Y c. 2021, 3.9 miles N d. 2021, 2.8 miles 2857: Your vessel is on a course of 253°T at 18 knots. At 2027 a light bears 275.5°T, and at 2055 the light bears 298°T.
At what time and at what distance off will your vessel be when abeam of the light?
Y a. 2115, 5.9 miles N b. 2109, 6.4 miles N c. 2123, 7.3 miles N d. 2104, 7.7 miles 2899: You are steaming on a course of 208°T at 21 knots. At 2019 you observe a lighthouse bearing 129°T. At 2030 the lighthouse bears 103°T. What is your distance off at the second bearing?
N a. 8.2 miles Y b. 8.6 miles N c. 8.9 miles N d. 9.3 miles 3053: The propeller on a vessel has a diameter of 19.9 feet and a pitch of 21.6 feet. What would be the apparent slip if the vessel cruised 395 miles in a 23 hour day (observed distance) at an average RPM of 78?
Y a. -3.2% N b. +3.2% N c. -12.0% N d. +12.0% 3060: The propeller on a vessel has a diameter of 24.0 feet and a pitch of 21.3 feet. What would be the slip if the vessel cruised 510 miles in a 24 hour day (observed distance) at an average RPM of 86?
N a. -12.2% N b. +12.2% Y c. -17.5% N d. +17.5% 3275: You have steamed 989 miles at 16.5 knots, and consumed 215 tons of fuel. If you have 345 tons of usable fuel remaining, how far can you steam at 13 knots?
N a. 1025 miles N b. 1993 miles Y c. 2557 miles N d. 3245 miles 11706: Your position is LAT 37°00.0'N, LONG 75°30.0'W. What is the course to steer per standard magnetic compass to arrive at LAT 36°59.0'N, LONG 75°48.5'W, if you are turning for 8.7 knots, the current is 039°T at 1.3 knots, and a northwesterly wind is causing 3° of leeway?
N a. 264.0° N b. 267.5° N c. 270.0° Y d. 273.0° 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 13301: The approach channel to the town of Cape Charles (LAT 37°16'N, LONG 76°01'W) has what controlling depth?
N a. 9 feet Y b. 17 feet N c. 20 feet N d. 40 feet 15210: What course should you steer per standard magnetic compass in order to navigate down the center of York River Entrance Channel (ignore set and drift)?
N a. 139°psc Y b. 141°psc N c. 147°psc N d. 149°psc 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 15340: At 1718, Bartlett Reef Light bears 050°T at a distance of 1.5 miles. From this position, you change course to 128°
T. At 1750 Race Rock Light bears 336°T, Little Gull Island Light bears 285°T, and Montauk Point Light bears 134°T. What were the set and drift of the current you encountered since 1718?
N a. 245°T at 0.9 knots N b. 245°T at 1.7 knots Y c. 065°T at 1.7 knots N d. 065°T at 0.9 knots 15463: If you are making 10 knots, what is your ETA at York Spit Channel Buoys "19" and "20"?
N a. 0959 N b. 1002 Y c. 1006 N d. 1011 15568: At 0520, you are on course 243°pgc at 12 knots. What is the course per standard magnetic compass?
N a. 262°psc Y b. 258°psc N c. 233°psc N d. 227°psc 15666: At 0815, visibility is excellent and you can see Montauk Point. Montauk Point Light is __________.
N a. shown from a brown tower N b. equipped with a fog diaphone Y c. lighted 24 hours N d. is 79 feet (24 meters) high 15906: As you enter the New Haven Outer Channel, you sight the range markers in line directly over the stern. Your heading at the time is 155.5° per gyrocompass. What is the gyro error?
N a. 1.0°E N b. 1.0°W Y c. 2.0°W N d. 0° 16008: While on a heading of 082°T, you sight Middle Ground Light in line with Old Field Point Light bearing 206° per standard magnetic compass. From this you can determine the __________.
N a. variation Y b. deviation table is correct for that heading N c. compass error is 17.5°E N d. deviation is 3.5°E for a bearing of 206° per standard magnetic compass 16018: At 0550, engineering repairs are complete and speed is increased to 9.6 knots. At 0630, Falkner Island Light bears 023°pgc and Horton Point Light bears 097°pgc. From your 0630 fix you steer to make good a course of 086°T while turning for 9.6 knots. At 0700, Falkner Island Light bears 336.0°pgc and Horton Point Light bears 105.5°pgc. The radar range to the south tip of Falkner Island is 5.7 miles. Which statement is TRUE?
N a. Your course made good from 0630 to 0700 was 082°T. N b. The speed made good from 0630 to 0700 was 10.1 knots. N c. The current from 0630 to 0700 was 279°T at 0.6 knot. Y d. You are making good your intended speed. 16468: When Cape Henry Light is abeam, what is the approximate distance to Yorktown?
N a. 58 miles N b. 55 miles N c. 42 miles Y d. 34 miles 16617: At 0200, you take the following bearings:
Falkner Island Light 004.5°T
Kelsey Pt. Breakwater Lt. 054.0°T
Horton Point Light 115.0°T
What were the set and drift from 0130?
N a. 260° at 0.5 knot N b. 080° at 1.0 knot Y c. 260° at 1.0 knot N d. There is no current. 16745: At 0100 Race Rock Light bears 001° relative, and at 0110 it bears 000° relative. Based on this you know you __________.
Y a. are being set to the right of the track N b. are making good more than 9.2 knots N c. are making good less than 9.2 knots N d. have an unknown gyro error