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.
144: What is the distance from the Arkansas River mouth to the Ohio River mouth in river miles?
N a. 594 miles N b. 546 miles N c. 422 miles Y d. 372 miles 324: The mean high water level at Old Point Comfort is __________.
N a. 3.3 feet (1.1 meters) Y b. 2.6 feet (0.8 meters) N c. 1.2 feet (0.4 meters) N d. 0.0 387: The wind is southerly, and you estimate 3° leeway. Allowing for leeway, what is the course to steer from your 0745 position to pass 1 mile south of Watch Hill Buoy "WH"?
Y a. 087°pgc N b. 085°pgc N c. 081°pgc N d. 079°pgc 424: From your 0530 position, you set a course of 271°psc with an engine speed of 9 knots. At 0645, Cornfield Safe-Water Buoy is abeam to starboard. What speed have you averaged since 0530?
N a. 9.5 knots N b. 9.0 knots Y c. 8.6 knots N d. 7.5 knots 567: What is the distance from Lamberts Point to abeam of Thimble Shoal Lt. following the navigable channel?
Y a. 11.2 miles N b. 10.6 miles N c. 9.8 miles N d. 9.0 miles 658: You are planning a voyage by great circle from LAT 59°00'N, LONG 07°00'W via LAT 38°00'N, LONG 61°30'W. Which of the following statements is TRUE? (Use gnomonic tracking chart WOXZC 5274)
N a. You are to the east of the Northern Hemisphere vertex. N b. When plotted on a Mercator chart the track line will be concave to Cape Farwell (Kap Farvel). Y c. All courses are in the southwest quadrant of the compass. N d. Distance is measured by using the length of a degree of latitude at the midpoint of the track line. 748: On 7 May , you observe Polaris for latitude at 0303 ZT. Your DR position is LAT 56°35.4'N, LONG 05°38.9'W. The sextant altitude is 56°11.1'. The height of eye is 36', and the index error is 3.3' off the arc. What is the latitude at the time of the sight?
N a. 56°24.6'N N b. 56°32.6'N N c. 56°35.0'N Y d. 56°38.7'N 1095: On 25 Oct. , your 0430 ZT DR position is LAT 24°48'N, LONG 65°31'W. Your vessel is on course 030°T at a speed of 18 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0455 running fix. NP-0025
Y a. LAT 24°53'N, LONG 65°28'W N b. LAT 24°53'N, LONG 65°12'W N c. LAT 24°54'N, LONG 65°17'W N d. LAT 25°03'N, LONG 65°18'W 1164: At 2350 on 23 June, you are at mile 610.5 AHP when you see about a mile ahead lights on the water near the left bank. What might you see when you come abreast of these lights?
N a. Privately maintained buoys at a yacht club N b. Government buoys marking the Hurricane Point dikes Y c. Barges moored at the Dennis Landing Terminal N d. A pipeline discharging dredge spoil 1184: On 8 April , your 0830 zone time DR position is LAT 22°49.0'N, LONG 84°37.0'W. Your vessel is on course 228°
T at a speed of 19.0 knots. What is the zone time of local apparent noon (LAN)?
Y a. 1144 N b. 1147 N c. 1150 N d. 1154 1218: It is 22 February , and you are keeping zone time +12. You are on course 267°T, speed 22 knots. Your 0800 DR position is LAT 28°15.0'N, LONG 179°18.0'W. What is the time of the second estimate of LAN by ship's clocks?
N a. 11h 17m 02s N b. 11h 50m 42s N c. 12h 16m 01s Y d. 12h 18m 00s 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 1279: At 0327 ZT, on 29 May , your DR position is LAT 25°00'N, LONG 64°15'W. You are steering 270°T at a speed of 13.6 knots. What is the zone time of sunrise?
N a. 0521 Y b. 0529 N c. 0536 N d. 0548 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 1477: On 27 June , your vessel's 0816 ZT DR position is LAT 22°14'S, LONG 53°52'W, when an azimuth of the Sun is observed. The chronometer time of the sight is 12h 15m 02s, and the Sun is bearing 047.5° per standard magnetic compass. The chronometer error is 00m 46s slow, and the variation in the area is 6.0°E. What is the deviation of the standard magnetic compass?
N a. 1.5°E N b. 1.9°W Y c. 3.0°W N d. 3.0°E 1502: On May 20 , you are keeping ZD +4, and your 2300 (ZD +4) DR position is LAT 42°07'N, LONG 81°02'W. At that time, you observe Polaris bearing 012°psc. The chronometer time of the observation is 03h 02m 23s, and the chronometer is 1m 17s fast. The variation is 9.5°W. What is the deviation of the magnetic compass?
Y a. 2.7°W N b. 12.2°W N c. 6.8°E N d. 12.2°E 1545: You are downbound, passing by Warfield Point Lt. (mile 537 AHP), when you observe on your Mississippi River map several black lines extending into the river from the bank. These indicate __________.
N a. revetments N b. weirs N c. fleeting areas Y d. dikes 1776: At 2231 ZT, on 14 July , in DR position LAT 34°06'S, LONG 149°47'W you observe an amplitude of Jupiter. The planet is about one Sun's diameter above the visible horizon and bears 257.1°psc. The variation is 15°E. What is the deviation?
N a. 0.5°E N b. 0.5°W N c. 1.5°W Y d. 2.5°W 1834: Which type of daymark would you see on the Belle Island Corner Lt. at mile 458.6 AHP?
N a. Green diamond N b. Green square Y c. Red diamond N d. Red triangle 1835: 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 1884: On 26 November , your 0535 DR position is LAT 27°18.9'S, LONG 30°18.4'E. You observe an unidentified planet bearing 085°T at an observed altitude (Ho) of 32°15.2'. The chronometer reads 03h 33m 16s, and is 01m 48s slow. What planet did you observe?
N a. Saturn Y b. Jupiter N c. Mars N d. Venus 1952: As you approach Dean Island Light (mile 754.8 AHP), which type of daymark will be observed at the light?
N a. Green triangle Y b. Green diamond N c. Green square N d. Red-and-green banded square 2050: From Baton Rouge to Cairo, what is the maintained minimum channel depth during low water?
Y a. 9 feet N b. 12 feet N c. 15 feet N d. 30 feet 2117: You must arrive at your final destination by 0800. The distance from your 0300 position to the final destination is 40.5 miles. What minimum speed must be made good to arrive on time?
Y a. 8.1 knots N b. 8.5 knots N c. 9.3 knots N d. 9.6 knots 2124: If the visibility is 10 miles and you are in the red sector, at what distance off should you sight Cape Henry Light?
Y a. 15 miles N b. 12 miles N c. 10 miles N d. 08 miles 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 2272: As you approach Buckridge Light (mile 412.5 AHP), which type of daymark would you see on the light structure?
N a. Red diamond N b. Red triangle N c. Green diamond Y d. Green square 2460: You have steamed 499 miles at 21 knots and burning 462 barrels of fuel per day. You must decrease your consumption to 221 barrels per day with 311 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?
N a. 17.3 Y b. 18.4 N c. 19.1 N d. 20.0 2655: You are steering 078°T, and a light is picked up dead ahead at a distance of 15.6 miles at 2316. You change course to pass the light 4.5 miles off abeam to port. If you are making 17 knots, what is your ETA at the position 4.5 miles off the light?
N a. 0006 Y b. 0009 N c. 0012 N d. 0015 2903: You are steaming on a course of 025°T at 15.5 knots. At 0645 you observe a lighthouse bearing 059°T. At 0655 the same lighthouse bears 075°T. What is your distance off at the second bearing?
N a. 1.5 miles N b. 2.6 miles N c. 4.0 miles Y d. 5.3 miles 2904: Your vessel is on course 093°T at 15 knots. At 1835 a light bears 136°T, and at 1857 the same light bears 170°T. What was your distance off the light at 1857?
N a. 6.0 miles N b. 6.4 miles Y c. 6.8 miles N d. 7.2 miles 2911: What is indicated by the two light gray shaded areas that cross the river above False River Lt. (mile 251.0 AHP)?
N a. Ferry crossings Y b. Utility crossings N c. Aerial cable crossings N d. Bridge construction 3612: Your vessel is steering 195° per standard magnetic compass. Variation for the area is 13°W, and the deviation is 4°E. The wind is from the west-southwest, producing a 2° leeway. Which true course are you making good?
N a. 178°T N b. 180°T N c. 182°T Y d. 184°T 3616: You desire to make good a true course of 046°. The variation is 6°E, magnetic compass deviation is 12°W, and the gyrocompass error is 3°W. A northerly wind produces a 5° leeway. What is the course to steer per standard magnetic compass to make good the true course?
Y a. 047°psc N b. 049°psc N c. 052°psc N d. 057°psc 10903: What is the distance from Norfolk to Philadelphia for a deep draft vessel via the Chesapeake Bay and C and D Canal ?
N a. 209 miles Y b. 245 miles N c. 286 miles N d. 302 miles 12907: At 0914 you are in Chesapeake Channel between Trestle B and Trestle C of the Chesapeake Bay Bridge and Tunnel. What is your ETA at North Chesapeake Entrance Buoy NCA if you are making good 10.9 knots (Use the buoyed channel and appropriate sea lane)?
Y a. 1038 N b. 1044 N c. 1049 N d. 1055 13309: What type of bottom can be expected at the northern end of York Spit Channel?
N a. Hard clay N b. Fine gray sand N c. Soft black mud Y d. Mud and sand 13406: You are planning to anchor your vessel at LAT 41°01.1'N, LONG 73°02.8'W. What type of bottom should you expect at this position?
N a. Gray sand N b. Soft mud Y c. Gray mud N d. Hard sand 15138: At 2045 you obtained the following Loran readings:
9960-W-14844.0
9960-X-26128.0
9960-Y-43712.5
What is your vessel's position?
N a. 40°41.1'N, 72°10.5'W N b. 40°41.4'N, 72°10.7'W Y c. 40°41.8'N, 72°10.8'W N d. 40°42.3'N, 72°11.3'W 15311: You leave York Spit Channel at buoy "14" at 0600 with an engine speed of 12 knots. You receive orders to rendezvous with the tug "Quicksilver" and her tow at Hog Island Bell Buoy "12". What is your ETA at the rendezvous point, if you pass through Chesapeake Channel to buoy "CBJ", through the outbound traffic separation lane to buoy "NCA"
(LL#375), and then to the rendezvous point?
N a. 0830 N b. 0850 Y c. 0910 N d. 0935 15410: You arrive at Cape Charles City at 1700 and depart at 1800. You are underway in Chesapeake Bay and encounter heavy fog. At 1830, you obtain the following radar readings:
Old Plantation Flats Light @ 1.9 nm
New Point Comfort Light bearing 301° true @ 10.55 nm
What is your 1830 position?
N a. LAT 37°10.3'N, LONG 76°04.5'W N b. LAT 37°10.3'N, LONG 76°06.5'W Y c. LAT 37°12.3'N, LONG 76°04.4'W N d. LAT 37°12.3'N, LONG 76°06.5'W 15418: At 2205, you are in Thimble Shoal North Auxiliary Channel abeam of lighted gong buoy "4". At this time the visibility decreases to 5 miles. You continue to turn RPMs for 6 knots and experience no set and drift. What time would you expect Old Point Comfort Light (white sector) to become visible?
N a. 2230 Y b. 2240 N c. 2246 N d. 2258 15611: From your 1815 position, you want to make good a course of 263°T. Your engines are turning RPM's for 12 knots. The current is 050°T at 1.9 knots. Adjusting your course for set and drift, at what time should you expect to enter the red sector of Cape Henry Light?
N a. 1849 N b. 1854 N c. 1859 Y d. 1904 16266: The abandoned lighthouse at Cape Henry is a(n) __________.
N a. octagonal, black and white tower N b. radio beacon station N c. emergency back up to Cape Henry Light Y d. gray, pyramidal tower 16511: At 0728, you change course to 080°T. When steady on course, the standard magnetic compass reads 097°. Which statement is TRUE?
N a. The gyro course is 083°pgc. N b. The magnetic heading is 090°. N c. The deviation is 1.0°E. Y d. The magnetic compass error is 17°W. 16513: At 0748, you change course to 160°T. What loran reading can you follow to remain on this course?
Y a. 9960-W-14651.0 N b. 9960-W-14660.0 N c. 9960-Y-43852.0 N d. 9960-Y-43943.8 16514: At 0815, Montauk Pt. Light House is bearing 167°T,
Shagwong Pt. has a radar range of 4.5 miles, and Cerberus Shoal "9" Buoy is bearing 284°T. If the engine is making turns for 10 knots, what was the set and drift of the current since 0748?
N a. Set 065°T, drift 1.1 knots N b. Set 065°T, drift 2.4 knots N c. Set 245°T, drift 1.1 knots Y d. Set 245°T, drift 2.4 knots