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.
51: As you approach Anconia Pt. Light (mile 528.6 AHP), which type of dayboard would you see on the light structure?
N a. Green diamond Y b. Green square N c. Red square N d. Red diamond 114: What are the light characteristics of Greenwood Light (mile 288.6 AHP)?
N a. Fixed red light N b. 1 red flash every 4 seconds Y c. 2 red flashes every 5 seconds N d. 2 white flashes every 4 seconds 235: At 0830, you obtained the following Radar Ranges:
New Haven Light @ 2.2 nm
Branford Reef Light @ 4.2 nm
What is your vessel's position?
N a. LAT 41°12.4'N, LONG 73°56.0'W N b. LAT 40°17.4'N, LONG 73°54.0'W Y c. LAT 41°12.4'N, LONG 72°53.8'W N d. LAT 41°13.4'N, LONG 72°53.8'W 264: At 0720, you are in the outer channel between buoy "1" and buoy "2" and change course to pass Townshend Ledge Lighted Bell Buoy "10A" abeam to port at 200 yards. What is your ETA off the buoy?
N a. 0745 N b. 0741 Y c. 0738 N d. 0734 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. 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 309: A vessel at LAT 14°10'N, LONG 61°00'W is to proceed to LAT 10°00'N, LONG 53°23'W. What is the course and distance by mid-latitude sailing?
N a. 117.3°T, 503.0 miles N b. 117.9°T, 504.0 miles N c. 118.6°T, 508.0 miles Y d. 119.2°T, 512.0 miles 348: At 0430, you take the following radar ranges:
Stratford Point Light @ 5.25 nm
Middle Ground Light @ 4.55 nm
What is your 0430 position?
N a. LAT 41°08.9'N, LONG 73°00.0'W N b. LAT 41°05.0'N, LONG 73°01.1'W Y c. LAT 41°05.8'N, LONG 73°00.8'W N d. LAT 41°06.5'N, LONG 73°01.4'W 415: A vessel at LAT 33°45'N, LONG 118°30'W, heads for a destination at LAT 21°15'N, LONG 157°36'W. Determine the true course and distance by Mercator sailing.
N a. 109.8°T, 2196 miles N b. 236.3°T, 2259 miles Y c. 250.2°T, 2216 miles N d. 289.2°T, 2413 miles 436: At 0227, you take the following radar ranges and bearings: Bartlett Reef Light 359°T at 2.4 miles, Race Rock Light 083°T at 4.1 miles. What is your 0227 position?
N a. LAT 41°14.5'N, LONG 72°08.0'W Y b. LAT 41°14.1'N, LONG 72°08.2'W N c. LAT 41°14.0'N, LONG 72°08.5'W N d. LAT 41°14.3'N, LONG 72°08.5'W 532: You depart LAT 26°03'S, LONG 10°28'E, for LAT 26°03'S, LONG 01°16'W. What are the course and distance by parallel sailing?
N a. 090°T, 547.2 miles N b. 090°T, 632.5 miles N c. 270°T, 547.2 miles Y d. 270°T, 632.5 miles 564: Horton Point Light __________.
N a. is 14 feet above sea level N b. has a fixed green light Y c. is shown from a white square tower N d. is synchronized with a radio beacon 578: At 1008, you are entering York Spit Channel and buoy "19" is abeam to your starboard. What speed are you making good?
N a. 9.9 knots N b. 9.7 knots Y c. 9.0 knots N d. 8.4 knots 755: You are taking a time tick using the 1400 signal from Buenos Aires, Argentina. You hear a 0.4 second dash followed by a series of dots, noting that the 29th and the 56th to 59th dots are omitted. At the start of the following 0.4 second dash (which is followed by an 8 second pulse), the comparing watch reads 01h 59m 57s. When compared to the chronometer, the comparing watch reads 02h 00m 38s, and the chronometer reads 02h 01m 33s. What is the chronometer error?
N a. 0m 03s slow N b. 0m 4ls slow Y c. 0m 52s fast N d. 1m 36s fast 1078: On 6 April , your 1830 ZT DR position is LAT 26°33.0'N, LONG 64°31.0'W. You are on course 082°T at a speed of 16 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 1900 running fix. NP-0008
N a. LAT 26°49.5'N, LONG 64°06.5'W Y b. LAT 26°32.5'N, LONG 64°27.1'W N c. LAT 26°31.2'N, LONG 64°32.1'W N d. LAT 26°28.7'N, LONG 64°32.1'W 1130: At 1923, on September 21, you pass Bixby Towhead Light (mile 873.7 AHP). What was your average speed since leaving Cairo?
N a. 9.2 mph N b. 8.8 mph Y c. 8.5 mph N d. 7.2 mph 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 1224: What is the total length of the trip?
N a. 906.3 miles Y b. 922.3 miles N c. 1155.8 miles N d. 1187.3 miles 1481: On 24 May , your vessel's 1000 ZT position is LAT 25°36.0'N, LONG 118°39.5'W, when you take an azimuth of the Sun. Determine the gyro error using the azimuth information.
Chronometer time: 06h 21m 48s Chronometer error: fast 01m 36s Gyro bearing: 099.4°
Variation: 11.1°E
N a. 0.3°W Y b. 1.3°W N c. 1.8°E N d. 2.4°E 1710: What is the width of the navigable channel at Columbus Pt. Light (mile 936.0 AHP)?
N a. 200 ft. Y b. 300 ft. N c. 450 ft. N d. 750 ft. 1735: As you pass under the Natchez-Vidalia Dual Bridge, the gage on the bridge reads 3.6 feet. If the highest point on your vessel is 62 ft. above the water, what is your vertical clearance?
Y a. 60.4 feet N b. 63.6 feet N c. 67.2 feet N d. 122.0 feet 1905: On 22 March , your 0519 DR position is LAT 27°20.6'N, LONG 69°25.6'W. You observe an unidentified star bearing 200°T at an observed altitude (Ho) of 33°05.5'. The chronometer reads 10h 16m 47s, and is 02m 15s slow. What star did you observe?
N a. Acamar N b. Enif Y c. Antares N d. Rigel 1926: On 23 September , your 1836 DR position is LAT 25°18'S, LONG 162°36'E. You observe an unidentified star bearing 022°T at an observed altitude (Ho) of 13°16'. The chronometer reads 07h 34m 12s, and is 01m 54s slow. What star did you observe?
N a. Antares Y b. Deneb N c. Achernar N d. Sirius 2089: At your current speed of 18 knots you only have enough fuel remaining to travel 316 miles. You must travel 731 miles to reach your destination. What should you reduce your speed (knots) to in order to reach your destination?
N a. 10.4 Y b. 11.8 N c. 13.2 N d. 14.6 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 2233: You have orders to drop off the empties at the fleeting area at Cairo Point and add five loaded tank barges to your tow. If you are turning for 9 mph and estimate the current at 1.5 mph, what is your ETA at Cairo?
N a. 1031, 22 June Y b. 1423, 22 June N c. 1741, 22 June N d. 2210, 22 June 2461: You have steamed 540 miles at 22 knots and burning 618 barrels of fuel per day. You must decrease your consumption to 372 barrels per day with 299 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?
Y a. 16.5 N b. 17.6 N c. 19.1 N d. 20.0 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 2859: Your vessel is on a course of 307°T at 20 knots. At 0914 a light bears 284.5°T, and at 0937 the light bears 262°T.
At what time and at what distance off will your vessel be when abeam of the light?
N a. 0950, 4.4 miles Y b. 0953, 5.4 miles N c. 0957, 6.6 miles N d. 1002, 7.1 miles 2894: You are steaming on a course of 071°T at 19 knots. At 1907 you observe a lighthouse bearing 122°T. At 1915 the lighthouse bears 154°T. What is your distance off at the second bearing?
N a. 3.4 miles Y b. 3.7 miles N c. 4.0 miles N d. 4.3 miles 3065: The propeller on your vessel has a pitch of 18'09". If the observed distance for a day's run was 399.4 miles and the average RPM was 86, which statement is TRUE?
N a. The slip is a positive 5%. N b. The day's run by engine RPM was 404.5 miles. Y c. The slip is a negative 5%. N d. The day's run by engine RPM was 390.6 miles. 3069: If the speed necessary for reaching port at a designated time is 18.5 knots and the pitch of the propeller is 21.7 feet, how many revolutions per minute will the shaft have to turn, assuming a 4% negative slip?
Y a. 83 N b. 90 N c. 97 N d. 114 3086: If the pitch of the propeller is 19.7 feet, and the revolutions per day are 86,178, calculate the day's run allowing 3% negative slip.
N a. 279.2 miles Y b. 287.6 miles N c. 311.4 miles N d. 326.2 miles 3260: You have steamed 726 miles at 17.5 knots, and consumed 138 tons of fuel. If you have 252 tons of usable fuel remaining, how far can you steam at 13.5 knots?
N a. 789 miles N b. 1326 miles N c. 1719 miles Y d. 2228 miles 3277: While steaming at 12.3 knots, your vessel burns 168 bbls of fuel per day. What will be the rate of fuel consumption if you increase speed to 13.5 knots?
N a. 192 bbls/day N b. 204 bbls/day Y c. 222 bbls/day N d. 238 bbls/day 3465: You are underway on course 000°T at 9.5 knots. The current is 082°T at 1.1 knots. What is the course being made good?
Y a. 007°T N b. 009°T N c. 021°T N d. 353°T 3605: The true course from point A to point B is 317°. A SSW wind causes a 4° leeway, variation is 6°W and deviation is 1°E. What is the magnetic compass course to steer to make good the true course?
N a. 326°psc Y b. 318°psc N c. 313°psc N d. 308°psc 4016: 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 004°.
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°
N a. 1.5°W N b. 0.5°W N c. 0.0° Y d. 1.0°E 11009: What best describes the structure from which Stratford Point Light is shown?
N a. Brown conical tower with white horizontal band in center of light on black pier N b. Red conical tower on brown cylindrical pier N c. White octagonal house on brown cylindrical pier Y d. White conical tower, with brown band midway of height 11010: What is the maximum speed permitted in Clinton Harbor?
Y a. 6 mph N b. 8 mph N c. 10 mph N d. 12 mph 11704: What is the true heading to steer in York River Entrance Channel if your engines are turning for 10.2 knots, the current is 220°T at 1.2 knots and a southwesterly wind causes 3° of leeway?
N a. 316°T Y b. 313°T N c. 309°T N d. 300°T 12306: You sight North Dumpling Island Light in line with Latimer Reef Light (LAT 41°18.2'N, LONG 71°56.0'W) bearing 093° per standard magnetic compass. If your vessel was heading 185° per standard magnetic compass at the time, which of the following is TRUE?
N a. The compass error is 2°W. N b. The deviation is 17°W. N c. The deviation is 2°W for all bearings of 093°. Y d. The deviation table is correct for that heading. 14104: You are approaching Bonneville Lock and Dam. Which FM-radio channel should be used to communicate with the lockmaster?
N a. 13 Y b. 14 N c. 15 N d. 16 15246: From your 1845 position, you desire to leave Stratford Shoal Middle Ground Light 1.0 mile off your starboard beam at 1900. Which course and speed would you order if you allow for a 2.0 knot current with a set of 180°T?
N a. 205°T at 9.2 knots N b. 208°T at 11.4 knots Y c. 215°T at 9.2 knots N d. 225°T at 11.5 knots 15366: At 0615 you change course to 078°T. If there is no current, when will Falkner Island Light be abeam?
N a. 0750 N b. 0743 N c. 0735 Y d. 0730 15542: At 2214 you receive a "Securite" call requesting you to remain at least 2 miles away from underwater work taking place at LAT 41°07.8'N, LONG 72°34.6'W. If you change course at 2220 and allow 3° leeway for southerly winds which course will you steer per gyrocompass to comply with this request? No allowance made for current.
N a. 079°pgc N b. 083°pgc N c. 086°pgc Y d. 089°pgc 15719: On chart 12354, the datum from which heights of objects are taken is __________.
Y a. mean high water N b. mean low water N c. lowest low water N d. mean lower low water 15859: You are turning for 9 knots on course 230°T. At 0023,
Horton Point Light bears 208°pgc. At 0053, Horton Point Light bears 126°pgc. What is the position of your 0053 running fix?
N a. LAT 41°05.7'N, LONG 72°27.6'W N b. LAT 41°05.8'N, LONG 72°28.1'W N c. LAT 41°05.9'N, LONG 72°27.4'W Y d. LAT 41°06.0'N, LONG 72°28.2'W 15861: At 0125, Mattituck Inlet Light bears 203°pgc at 2.1 miles.
What is the approximate depth of the water under the keel?
N a. 46 fathoms (83.6 meters) N b. 44 fathoms (80.0 meters) N c. 43 feet (13.0 meters) Y d. 38 feet (11.5 meters) 15915: At 0925, you obtain the following radar information:
Falkner Island Light bearing 252° true @ 1.65 nm
If you correct for a current setting 215°T at 0.5 knot,
what course will you steer from the 0925 position to arrive at a position 0.5 mile south of Long Sand Shoal West End Horn Buoy "W"?
Y a. 089°T N b. 093°T N c. 096°T N d. 102°T 15957: At 1752, your position is LAT 37°04.3'N, LONG 76°06.4'W. On an ebb current you should expect to be set to the __________.
N a. north northeast Y b. south southeast N c. south southwest N d. north northwest 16059: At 1800, Tue Marshes Light bears 270°pgc, and York Spit Swash Channel Light "3" bears 007°pgc. Your position is __________.
N a. LAT 37°14.0'N, LONG 76°19.8'W N b. LAT 37°14.2'N, LONG 76°20.3'W Y c. LAT 37°14.2'N, LONG 76°20.1'W N d. LAT 37°14.5'N, LONG 76°20.0'W 16469: As you pass between trestle "B" and trestle "C" of the Chesapeake Bay Bridge - Tunnel, you sight along the trestle "C" when it is in line. The trestle bears 057° per standard magnetic compass while the vessel is heading 320°T. From this you know the __________.
Y a. vessel should be swung to check the deviation table N b. compass error is 12°W N c. deviation table is correct for that bearing N d. deviation is 10°W 16543: Based on the information in the previous question, what is your ETA at the distress scene?
N a. 0006 N b. 0010 Y c. 0016 N d. 0021