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.
43: You have received orders to proceed to the Amoco Pipeline Co. (mile 253.6 AHP) above Baton Rouge. If your vessel is making turns for 9 mph with an estimated average current of 1.5 mph, what is your ETA at the Amoco docks?
N a. 0844, 28 Aug N b. 1454, 28 Aug Y c. 1444, 27 Aug N d. 2214, 27 Aug 46: At 2342, on 25 August, you pass under the Helena Highway Bridge (mile 661.7 AHP). What has been the average speed of the current since departing Memphis Harbor, McKellar Lake, if you have been making turns for 9 mph?
N a. 5.6 mph N b. 4.4 mph N c. 2.1 mph Y d. 1.8 mph 150: Which dayboard would you see on Puntney Light (mile 943.6 AHP)?
N a. Green square N b. Green triangle Y c. Red diamond N d. Red triangle 345: The characteristic of Branford Reef Light is __________.
N a. flashing red every 4 seconds N b. flashing red every 3 seconds N c. flashing yellow every 4 seconds Y d. flashing white every 6 seconds 399: A vessel at LAT 11°22'S, LONG 009°18'E heads for a destination at LAT 06°52'N, LONG 57°23'W. Determine the true course and distance by Mercator sailing.
N a. 296°T, 3,825.3 miles N b. 296°T, 4,154.2 miles N c. 285°T, 3,825.3 miles Y d. 285°T, 4,154.2 miles 428: At 0730, visibility is 5.5 miles. At what time will you lose sight of Horton Point Light?
N a. It is not visible at 0730 N b. 0733 Y c. 0751 N d. 0812 463: Determine the great circle distance and initial course from LAT 37°47.5'N, LONG 122°27.8'W to LAT 33°51.7'S, LONG 151°12.7'E.
N a. 6324.2 miles, 310.3°T N b. 6345.3 miles, 301.7°T N c. 6398.0 miles, 298.3°T Y d. 6445.2 miles, 240.3°T 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 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 652: On a voyage via the southern tip of Nova Scotia (LAT 43°20'N, LONG 65°35'W) you wish to sail the shortest route to La Coruna, Spain (LAT 43°20'N, LONG 8°24'W). Which of the following will require you to plot a composite sailing? (Use gnomonic tracking chart WOXZC 5274)
N a. Shoals extending 15 miles from Sable Island N b. Sea ice reported 68 miles ESE of St. John's, Newfoundland Y c. Icebergs reported extending west to west-northwest from LAT 47°00'N, LONG 35°00'W N d. Naval exercises using live ammunition being conducted within a 150 mile radius of LAT 49°00'N, LONG 20°00'W 808: On 28 July , your 0800 zone time fix gives you a position of LAT 25°16.0'N, LONG 71°19.0'W. Your vessel is on course 026°T, and your speed is 17.5 knots. Local apparent noon (LAN) occurs at 1149 zone time, at which time a meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 82°28.7'. What is the calculated latitude at LAN?
N a. 26°21.9'N N b. 26°23.4'N Y c. 26°25.0'N N d. 26°27.7'N 1186: On 16 November , your 0800 zone time DR position is LAT 25°11.0'N, LONG 117°41.0'W. Your vessel is on course 252°T at a speed of 14.5 knots. What is the zone time of local apparent noon (LAN)?
N a. 1131 N b. 1135 Y c. 1139 N d. 1144 1191: On 14 October , your 0800 ZT DR position is LAT 28°22.0'N, LONG 161°17.0'E. Your vessel is on course 116°T at a speed of 17.5 knots. What is the ZT of local apparent noon (LAN)?
N a. 1142 N b. 1148 N c. 1152 Y d. 1156 1307: 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?
Y a. 5 N b. 4 N c. 3 N d. 2 1485: On 6 October , your 0416 zone time DR position is LAT 25°16.0'N, LONG 130°25.0'E. At that time, you observe Mars bearing 083°psc. The chronometer reads 07h 16m 22s, and the chronometer error is 00m 10s fast. The variation is 1.5°E. What is the deviation of the standard compass?
N a. 0.4°E Y b. 1.2°W N c. 3.5°E N d. 19.0°E 1658: On 23 August , in DR position LAT 24°07.0'N, LONG 136°16.0'E, you observe an amplitude of the Sun. The Sun's center is on the visible horizon and bears 074.5°psc. The chronometer reads 08h 56m 19s and is 02m 34s fast. Variation in the area is 2°W. What is the deviation of the magnetic compass?
N a. 2.5°E N b. 2.8°W Y c. 4.5°E N d. 4.8°W 1674: On 4 July , your vessel's 1722 zone time DR position is LAT 34°30'S, LONG 174°48'E, when an amplitude of the Sun is observed. The sun's center is on the visible horizon and bears 282° per standard magnetic compass. Variation in the area is 17.2°E. The chronometer reads 05h 21m 48s and is 02m 01s fast. What is the deviation of the compass?
Y a. 1.5°W N b. 2.0°W N c. 1.5°E N d. 2.0°E 1766: What type of daymark will you see as you approach Black Hills Light (mile 337.7 AHP)?
N a. Private aid - no daymark N b. Red square N c. Red diamond Y d. Red triangle 1782: At 2043 ZT, on 13 October , in DR position LAT 43°57.3'S, LONG 147°16.0'E, you observe an amplitude of Venus. The planet is about one Sun's diameter above the horizon and bears 236.2°pgc. The variation is 15°E. What is the gyro error?
Y a. 0.0° N b. 0.9°E N c. 1.8°E N d. 0.4°W 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 1912: On 22 February , your 1857 DR position is LAT 23°46.0'S, LONG 93°16.5'E. You observe an unidentified star bearing 108°T at an observed altitude (Ho) of 67°53.9'. The chronometer reads 01h 00m 35s, and is 03m 25s fast. What star did you observe?
Y a. Adhara N b. Miaplacidus N c. Avior N d. Suhail 1923: On 17 March , your 1845 DR position is LAT 25°10.0'N, LONG 66°48.0'W. You observe an unidentified star bearing 077°T at an observed altitude (Ho) of 67°04.4'. The chronometer reads 10h 47m 49s, and is 1m 54s fast. What star did you observe?
N a. Capella N b. Mirfak Y c. Pollux N d. Rigel 1960: The low water reference plane for Greenville Highway Bridge is 11.3 feet. If the Gage at the Greenville Highway Bridge reads 22.0 feet, what is the water level in relation to the low water reference plane (LWRP)?
N a. 22.1 feet below the LWRP N b. 10.7 feet below the LWRP Y c. 10.7 feet above the LWRP N d. 0.5 feet below the LWRP 2012: On 24 March , your vessel is enroute from Cadiz to Norfolk. Evening twilight will occur at 1830 zone time, and your vessel's DR position will be LAT 35°06'N, LONG 60°48'
W. Considering their azimuth, altitude, and magnitude,
which group of stars is best suited for plotting a star fix at star time?
N a. Adhara, Rigel, Suhail N b. Regulus, Denebola, Alkaid N c. Adhara, Procyon, Alphard Y d. Sirius, Dubhe, Mirfak 2030: 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. 2061: As you approach mile 225 AHP, you notice on the map a black broken line crossing the river at mile 224.2 AHP. This line indicates __________.
N a. ferry crossing N b. submarine crossing N c. gas pipelines Y d. power lines 2181: On 4 June , at 0630 ZT, morning stars were observed, and the vessel's position was determined to be LAT 26°15'S, LONG 121°20'W. Your vessel is steaming at 13.0 knots on a course of 246°T. A sextant observation of the Sun's lower limb is made at 0915 ZT. The chronometer reads 05h 14m 27s, and the sextant altitude is 25°57.8'. The index error is 2.1' off the arc, and the chronometer error is 0m 53s slow. Your height of eye is 39.0 feet. What is the intercept (a) and azimuth (Zn) of this sight using the assumed position method?
N a. Zn 044.6°, a 1.7' A Y b. Zn 044.6°, a 2.5' T N c. Zn 135.1°, a 1.7' A N d. Zn 135.1°, a 2.5' T 2187: 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. 1600 hours 2239: At 1610 ZT, on 14 August , in DR position LAT 33° 24.6' S, LONG 028°15.4'W, you observe an amplitude of the Moon. The center of the Moon is on the visible horizon and bears 111.0° psc. The variation is 2° E. What is the deviation?
N a. 1.1°E Y b. 1.1°W N c. 2.1°E N d. 2.1°W 2242: At 1620 ZT, on 10 September , in DR position LAT 34° 03.8' N, LONG 050° 28.4' W, you observe an amplitude of the Moon. The Moon’s upper limb is observed on the visible horizon and bears 110.2° psc. The variation is 2° E. What is the deviation?
N a. 2.0°E N b. 2.0°W Y c. 1.2°E N d. 1.2°W 2278: You observe the lower limb of the Sun at a sextant altitude (hs) of 31°31.5' on 6 March . The index error is 2.5' on the arc. The height of eye is 76 feet. What is the observed altitude (Ho)?
Y a. 31°35.3' N b. 31°36.7' N c. 31°38.2' N d. 31°39.5' 2667: Your vessel is on a course of 255°T, at 14 knots. At 2126 a lighthouse is sighted dead ahead at a distance of 11 miles. You change course at this time to pass the lighthouse 3 miles abeam to port. What will be your ETA at this position off the lighthouse?
N a. 2149 N b. 2201 Y c. 2211 N d. 2228 2887: Your vessel is steering 283°T at 10 knots. At 0538 a light bears 350°T, and at 0552 the same light bears 002°T. What will be your distance off abeam?
N a. 9.6 miles Y b. 10.3 miles N c. 10.7 miles N d. 11.3 miles 3111: You are turning 100 RPM, with propeller pitch of 25 feet, and an estimated negative slip of 5%. What is the speed of advance?
N a. 23.4 knots N b. 24.7 knots Y c. 25.9 knots N d. 26.3 knots 3469: You are underway on course 315°T at 14 knots. The current is 135°T at 1.9 knots. What is the speed being made good?
Y a. 12.1 knots N b. 13.5 knots N c. 14.0 knots N d. 15.9 knots 4012: 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 210°.
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°
Y a. 0.0° N b. 0.5°W N c. 0.5°E N d. 1.0°E 10502: At 1239 your GPS indicates a position of LAT 36°55.2'N, LONG 75°33.1'W. You are on course 281° per standard magnetic compass at a speed of 9.2 knots. At 1318 your GPS indicates your position as LAT 36°54.8'N, LONG 75°39.8'W. What were the set and drift?
Y a. 130°T at 1.2 knots N b. 156°T at 0.6 knot N c. 352°T at 1.3 knots N d. 335°T at 1.0 knot 11107: What is the time (Daylight Savings Time) of the first high tide on 1 July 1983 at Great Salt Pond on Block Island?
Y a. 0027 N b. 0448 N c. 1158 N d. 1203 11902: What is the true course to steer between the entrance to Lake Montauk (LAT 41°04.8'N, LONG 71°56.3'W) and Winnapaug Pond entrance) LAT 41°19.6'N, LONG 71°45.8'W), if you are turning for 9.5 knots, allow for a current of 075°T at 1.2 knots, and a westerly wind is causing 3° of leeway?
Y a. 021°T N b. 024°T N c. 027°T N d. 029°T 11907: Your position is 3 miles due east of Montauk Point Light. What is the course to steer to arrive at LAT 41°00.0'N, LONG 71°30.0'W, if you are turning for 7.8 knots, the current is 130° at 1.2 knots, and a southerly wind causes 3° of leeway?
N a. 112°T Y b. 108°T N c. 105°T N d. 102°T 12204: You sight Stratford Shoal (Middle Ground) Light and Old Field Pt. Light in line and bearing 200° per standard magnetic compass. What is the deviation of the compass?
N a. 7°E N b. 7°W Y c. 3°E N d. 3°W 13703: NOAA weather broadcasts can be received on what frequency while navigating off Cape Henry?
N a. 162.45 MHz Y b. 162.55 MHz N c. 162.65 MHz N d. 162.70 MHz 15144: At 2310 Buoy "MP" bears 305° true with a radar range of 2.5 miles. From this position you change course to 005° true. Without any set and drift, what would be your predicted distance off Southwest Ledge Buoy "2" when it is on your starboard beam?
N a. 0.9 mile N b. 1.1 miles Y c. 1.5 miles N d. 1.9 miles 15657: What was the course made good from 0630 to 0654?
N a. 078°T Y b. 082°T N c. 086°T N d. 090°T 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 16006: You are on course 082°T, and the engines are turning for 8 knots. At 0352, you take the following bearings:
Stratford Point Light 016°pgc
Stratford Shoal (Middle Ground) Light 137°pgc
What is your 0352 position?
N a. LAT 41°05.0'N, LONG 73°08.0'W Y b. LAT 41°05.2'N, LONG 73°07.8'W N c. LAT 41°05.3'N, LONG 73°07.5'W N d. LAT 41°05.4'N, LONG 73°07.7'W 16365: From your 0500 position, you change course to 221°T and order turns for 9.8 knots. At 0600 Chesapeake Light bears 143°pgc at a radar range of 6.5 miles. Cape Henry Light bears 252°pgc. What is the position of your 0600 fix?
N a. LAT 36°59.1'N, LONG 75°48.1'W N b. LAT 36°59.1'N, LONG 75°47.6'W Y c. LAT 36°59.2'N, LONG 75°47.8'W N d. LAT 36°58.9'N, LONG 75°48.5'W 16367: Weather broadcasts for the Norfolk area are broadcast on what frequency?
N a. 162.25 MHz N b. 162.30 MHz Y c. 162.55 MHz N d. 162.65 MHz 16441: When you get underway, you will take the most direct route to buoy "CBJ", while remaining west of York Spit Channel. You will be turning for 9.7 knots and estimate an average ebb of 0.3 knot during the transit. How long will it take to steam from the anchor position to buoy "CBJ"?
N a. 2h 16m Y b. 2h 33m N c. 2h 42m N d. 2h 51m 16646: The Tidal Current Tables indicate the following for the Race:
SLACK WATER MAXIMUM CURRENT
0328 0642 3.9 F
0947 1301 3.2 E
What current should you expect when transiting the Race?
N a. 3.9 knots, flooding Y b. 3.5 knots, flooding N c. 3.3 knots, flooding N d. 3.0 knots, flooding