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.
62: The Greenville Gage reads 10.6 feet. The high point of your towboat is 54 feet above water. What is the vertical clearance as you pass under the Greenville Highway Bridge?
N a. 75.4 feet Y b. 65.4 feet N c. 54.2 feet N d. 44.4 feet 202: Which statement concerning Montauk Point Light is TRUE?
N a. The light comes on at sunset. Y b. There is an emergency light if the main light is extinguished. N c. The height of the light is 24 feet. N d. The tower is painted with black and white stripes. 241: Little Gull Island Light is __________.
N a. lighted only during daytime when the sound signal is in operation Y b. lighted throughout 24 hours N c. maintained only from May 1 to Oct 1 N d. obscured by trees from 253° to 352° 244: Your vessel is entering New London Harbor Channel. If there is no current, what should you steer per gyro compass to stay on the range?
N a. 006° N b. 357° N c. 354° Y d. 351° 279: At 1752, your position is LAT 37°04.3'N, LONG 76°06.4'W. On a flood current you should expect to be set to the __________.
N a. south southeast N b. south southwest N c. east southeast Y d. north northwest 381: At 1540, your position is LAT 37°18.4'N, LONG 76°10.5'W. Which course should you steer per gyrocompass to head for the entrance to Cape Charles City?
Y a. 129°pgc N b. 123°pgc N c. 117°pgc N d. 109°pgc 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 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 491: At 0748, you take the following bearings:
Watch Hill Point Light bearing 020.5° pgc
Race Point Light bearing 267.5° pgc
What is the approximate depth of water at this position?
N a. 104 feet Y b. 130 feet N c. 175 feet N d. 325 feet 626: You are on a voyage from St. John, Canada, to Galveston, TX. The distance is 2280 miles, and the speed of advance is 15.0 knots. You estimate 16.5 hours for bunkering enroute at Ft. Lauderdale, FL. If you sailed at 1642 hours (ZD +4), 27 February , what was your ETA (ZD +6) at Galveston?
Y a. 1512, 6 March N b. 0812, 6 March N c. 0712, 6 March N d. 2312, 5 March 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. 672: What is the total length of the trip?
Y a. 922.3 miles N b. 985.3 miles N c. 1155.8 miles N d. 1187.3 miles 737: On 29 July , your 1930 zone time DR position is LONG 164°26.0'E. At that time you observe Polaris with a sextant altitude (hs) of 23°46.8'. The chronometer time of the sight is 08h 32m 18s, and the chronometer error is 02m 26s fast. The index error is 2.7' on the arc, and the height of eye is 56.0 feet. What is your latitude by Polaris?
N a. 24°01.9'N Y b. 24°19.5'N N c. 24°31.7'N N d. 25°19.6'N 1267: On 10 December , your 1300 zone time (ZT) DR position is LAT 26°27.0'S, LONG 79°04.0'E. You are on course 068°T at a speed of 14 knots. What will be the zone time of sunset at your vessel?
Y a. 1824 N b. 1846 N c. 1854 N d. 1908 1283: On 5 May , your 1800 ZT DR position is LAT 26°11.5'N, LONG 65°35.0'W. You are on course 270°T at a speed of 12 knots. What will be the ZT of sunset at your vessel?
N a. 1825 N b. 1840 Y c. 1857 N d. 1901 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 1406: Which of the following describes the river at Cypress Bend, mile 569.0 AHP?
N a. There are revetments on both banks. Y b. The river is three tenths of a mile wide. N c. There is dredge spoil on both banks. N d. There is a turning basin located on the LDB. 1418: How far is it to the Hernando Desoto Bridge in Memphis, TN?
N a. 980.8 miles N b. 736.6 miles N c. 312.3 miles Y d. 218.1 miles 1668: On 20 June , your vessel's 1955 ZT DR position is LAT 52°38.9'N, LONG 03°42.7'E, when an amplitude of the Sun is observed. The Sun's center is on the visible horizon and bears 311° per gyrocompass. Variation in the area is 6°W. At the time of the observation, the helmsman noted that he was heading 352° per gyrocompass and 358° per steering compass. What is the gyro error and deviation for that heading?
N a. 1.3°W GE, 1.3°E DEV N b. 0.0° GE, 0.0° DEV N c. 1.3°W GE, 1.3°W DEV Y d. 1.3°E GE, 1.3°E DEV 1961: The Delta-Friar Point revetment on the LMR extends from mile __________.
Y a. 657.3 - 652.2 LDB N b. 652.8 - 649.6 RDB N c. 648.5 - 645.5 LDB N d. 645.6 - 641.4 RDB 2154: On 30 June , at 0630 zone time, morning stars were observed, and the vessel's position was determined to be LAT 25°15.0'S, LONG 175°36.0'E. Your vessel is steaming at 16.0 knots on a course of 302°T. A sextant observation of the Sun's lower limb is made at 1015 zone time. The chronometer reads 10h 14m 38s, and the sextant altitude is 32°07.9'. The index error is 4.5' on the arc, and the chronometer error is 01m 25s slow. Your height of eye on the bridge is 58.0 feet. What is the azimuth (Zn) of this sight using the assumed position?
Y a. 035.3°T N b. 144.7°T N c. 186.5°T N d. 248.5°T 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 2403: At 0812 you obtain the following information:
Chesapeake Light bearing 091° true @ a range of 10.5 nm
What is your 0812 position?
N a. LAT 36°53.7'N, LONG 75°56.0'W N b. LAT 36°53.8'N, LONG 75°56.1'W Y c. LAT 36°54.4'N, LONG 75°55.9'W N d. LAT 36°54.6'N, LONG 75°55.8'W 2862: Your are on course 317°T at 13 knots. A light is bearing 22.5° relative at 0640. At 0659 the same light is bearing 45° relative. At what time should the light be abeam?
N a. 0709 Y b. 0712 N c. 0718 N d. 0721 2891: You are steaming on course 168°T at a speed of 18 knots. At 1426 you sight a buoy bearing 144°T. At 1435 you sight the same buoy bearing 116°T. What is your distance off at the second bearing and predicted distance when abeam?
Y a. 2.3 miles 2nd bearing, 1.8 miles abeam N b. 2.5 miles 2nd bearing, 2.8 miles abeam N c. 2.8 miles 2nd bearing, 1.8 miles abeam N d. 3.3 miles 2nd bearing, 2.8 miles abeam 2892: You are steaming on a course of 114°T at 17 knots. At 1122 you observe a lighthouse bearing 077°T. At 1133 the lighthouse bears 051°T. What is your distance off at the second bearing?
N a. 3.3 miles N b. 3.9 miles Y c. 4.3 miles N d. 4.9 miles 2893: You are steaming on a course of 253°T at 14 knots. At 2329 you observe a lighthouse bearing 282°T. At 2345 the lighthouse bears 300°T. What is your distance off at the second bearing?
N a. 3.7 miles N b. 4.3 miles N c. 5.2 miles Y d. 5.9 miles 3262: You have steamed 632 miles at 18.5 knots, and consumed 197 tons of fuel. If you have 278 tons of usable fuel remaining, how far can you steam at 15.0 knots?
N a. 681 miles N b. 892 miles N c. 1100 miles Y d. 1357 miles 3472: You are taking a time tick using the 2000 signal from Kekaha-Kauai, Hawaii (WWVH). You hear a series of 1 second dashes followed by a 9 second silent period, then a long 1.3 second dash. At the beginning of the long dash, your comparing watch reads 08h 00m 49s. When compared to the chronometer, the comparing watch reads 08h 01m 33s, and the chronometer reads 08h 00m 56s. What is the chronometer error?
Y a. 0m 12s fast N b. 0m 56s fast N c. 0m 44s slow N d. 1m 26s slow 3606: You are steering 154°pgc. The wind is southwest causing 4° leeway. The gyro error is 3°E, variation is 11°W and deviation is 7°E. What is the true course made good?
Y a. 153°T N b. 158°T N c. 161°T N d. 164°T 3644: While enroute from Cape Town to Rio a vessel's course is 281°pgc. The variation for the locality is 24°W. The deviation is 4°E. The gyro error is 2°W. What is the true course made good?
Y a. 279°T N b. 261°T N c. 301°T N d. 283°T 11802: What course should you steer by your standard magnetic compass (psc), between New Haven Light and Stratford Pt. Light, if the set and drift of the current are 345°T at 3.0 knots, and a northerly wind will cause 1° of leeway? Your engines are making turns for 18.0 knots.
N a. 245.0°psc Y b. 247.0°psc N c. 264.0°psc N d. 266.5°psc 11901: You are turning for 7.5 knots and a westerly wind is causing 2° of leeway. There is a current of 047°T at 1.2 knots. What course should you steer between the entrance to Quonochontaug Pond (LAT 41°19.8'N, LONG 71°43.2'W) and the entrance to Great Salt Pond (LAT 41°12.0'N,
LONG 71°35.6'W)?
N a. 156°T Y b. 155°T N c. 144°T N d. 140°T 11904: What is the true course to steer between the entrance to Winnapaug Pond (LAT 41°19.6'N, LONG 71°45.8'W) and the entrance to Lake Montauk (LAT 41°04.8'N, LONG 71°56.3'W), if you are turning for 6.5 knots, allow for a current of 295°T at 0.9 knot, and an easterly wind is causing 4° of leeway?
Y a. 196°T N b. 200°T N c. 213°T N d. 217°T 13302: The shoal spanned by Trestle B of the Chesapeake Bay Bridge and Tunnel is __________.
N a. Chesapeake shoal N b. the Middle ground N c. Lynnhaven roads Y d. the Tail of the Horseshoe 13502: The four soundings in the vicinity of LAT 41°12.2'N, LONG 71°33.0'W, that are underlined with a bracket indicate __________.
N a. that no bottom was found at the sounding depth indicated N b. a submerged rock not dangerous to surface navigation N c. the height a rock uncovers at low water springs Y d. a submerged danger that is cleared to the indicated depth by a wire drag 13709: Anchorage regulations for this area may be obtained from __________.
Y a. Office of the Commander 5th Coast Guard District N b. Commanding General, Corps of Engineers, Washington, DC N c. Virginia - Maryland Pilots Association N d. Chesapeake Bay Port Authority, Hampton, VA 14200: What is the length of the city wharf at The Dalles on the Columbia River?
N a. 20 feet Y b. over 1000 feet N c. 800 feet N d. 600 feet 14401: You are underway and steaming in an easterly direction on the Columbia River. Your vessel is positioned in the middle half of Cape Horn Channel and is abeam of Cape Horn Light. What should your fathometer read at this position, if the staff gauge at Portland reads 0 feet?
N a. 16 feet N b. 18 feet Y c. 22 feet N d. 24 feet 15167: Your height of eye is 25 feet (7.6 meters). If the visibility is 11 nautical miles, what is the luminous range of Wolf Trap Light?
N a. 8.2 miles Y b. 12.0 miles N c. 16.0 miles N d. 17.0 miles 15240: At 1130, Horton Point Light bears 172° true at a range of 3.45nm
The fathometer reads 81 ft. Your position is __________.
N a. north of your intended track line N b. 41°09.4'N, 72°22.6'W N c. three miles southeast of Six Mile Reef Buoy "8A" Y d. 41°08.5'N, 72°27.3'W 15241: At 1155 your vessel's position is LAT 41°09.0'N, LONG 72°34.4'W. If you make good a course of 282°T and a speed of 10.0 knots, when will you arrive at New Haven Harbor Lighted Whistle Buoy "NH"?
N a. 1315 N b. 1320 Y c. 1325 N d. 1330 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 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 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 15346: At 1942 Point Judith bears 030°T and has a range of 3.6 miles and Sandy Point has a range of 5.3 miles. What was your speed made good from your 1850 position?
N a. 12.5 knots Y b. 13.0 knots N c. 13.5 knots N d. 14.0 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 15368: At 0705, the gyro loses power. At 0730, you are on course 092° per standard magnetic compass (psc). Falkner Light bears 356°psc, Horton Point Light bears 123°psc, and Kelsey Point Breakwater Light bears 048°psc. What is the position of your 0730 fix?
N a. LAT 41°06.7'N, LONG 72°36.1'W N b. LAT 41°06.8'N, LONG 72°36.0'W Y c. LAT 41°07.0'N, LONG 72°36.2'W N d. LAT 41°07.2'N, LONG 72°36.1'W 16058: At 1750, your position is LAT 37°14.5'N, LONG 76°22.9'W. What was the speed made good between 1730 and 1750?
N a. 7.5 knots N b. 7.8 knots N c. 8.1 knots Y d. 8.4 knots 16066: Which statement concerning Thimble Shoal Channel is TRUE?
Y a. The project width of the main channel is 1000 feet (30.3 meters) N b. The channel is 14.5 miles in length. N c. A tow drawing 30 feet (9.1 meters) is excluded from the main channel. N d. Thimble Shoal Channel is in international waters. 16310: At 0730, your position is LAT 41°10.5'N, LONG 72°32.2'W. From this position you steer course 286°psc with an engine speed of 9.0 knots. What is the approximate depth of water under your keel?
Y a. 52 feet (15.8 meters) N b. 57 feet (17.3 meters) N c. 62 feet (18.8 meters) N d. 67 feet (20.3 meters) 16358: What is the distance from the anchorage to point "A"?
N a. 13.9 miles Y b. 15.1 miles N c. 15.9 miles N d. 17.0 miles 16508: At 0700, your gyro alarm sounds. What course should you steer by the standard magnetic compass in order to maintain your original heading of 078°T?
N a. 062°psc N b. 080°psc N c. 090°psc Y d. 095°psc 16720: In order to check your compasses, you sight North Dumpling Island Light in line with Latimer Reef Light bearing 074°
pgc. The helmsman was steering 303°pgc and 315° per standard magnetic compass at the time. Which of the following is TRUE?
Y a. The gyro error is still 2°E. N b. The deviation based on the observation is 15°W. N c. The magnetic compass error is 12°W. N d. The true line of the range is 072°.