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.
88: What is the vertical clearance between the highest point of your towboat, if it is 58 feet above the water, and if the Natchez Gage reads 28.13 feet when passing under the Natchez Upper Highway Bridge?
N a. 45.4 feet Y b. 39.3 feet N c. 33.2 feet N d. 15.9 feet 188: At 2020, what is the course to steer to enter the inbound lane of North Chesapeake Entrance traffic separation scheme if a northwesterly wind causes 3° of leeway?
N a. 227°pgc Y b. 221°pgc N c. 218°pgc N d. 215°pgc 248: You are southeast of Saybrook Breakwater Light passing Saybrook Bar Lighted Bell Buoy "8". This buoy marks __________.
N a. a sunken wreck N b. a bifurcation N c. the junction with the Connecticut River Y d. shoal water 272: At 0925, you plot the following bearings:
Falkner Island Light bearing 251°true
Kelsey Point BW Light bearing 075°true
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"?
N a. 102°T N b. 096°T N c. 093°T Y d. 089°T 311: A vessel at LAT 20°10'N, LONG 122°00'E is to proceed to LAT 26°18'N, LONG 128°20'E. What are the course and distance by mid-latitude sailing?
N a. 041.2°T, 501.0 miles N b. 041.9°T, 503.6 miles Y c. 043.5°T, 507.3 miles N d. 044.7°T, 509.7 miles 375: As you near Little Gull Island, you use your loran to insure that you do not come within 0.5 mile of the island. Which of the following loran readings will act as a danger line and keep you off Little Gull Island by a minimum of 0.5 mile?
N a. Not less than 9960-W-14735.8 N b. Not more than 9960-W-14735.9 Y c. Not less than 9960-Y-43953.5 N d. Not more than 9960-X-26149.0 470: Determine the great circle distance and initial course from LAT 35°08.0'S, LONG 19°26.0'E to LAT 33°16.0'S, LONG 115°36.0'E.
N a. 4457 miles, 126°T Y b. 4559 miles, 121°T N c. 4682 miles, 059°T N d. 4688 miles, 126°T 498: As you head toward Great Salt Pond, visibility is unlimited. At what time will you lose sight of Montauk Pt. Light?
N a. 0905 N b. 0928 N c. 0950 Y d. It will remain visible to Great Salt Pond. 551: You are on course 092°T, and the engines are turning for 8 knots. At 0452, you take the following bearings:
Stratford Point Light 020°pgc Stratford Shoal (Middle Ground) Light 141°pgc
What is your 0452 position?
Y a. LAT 41°05.2'N, LONG 73°07.8'W N b. LAT 41°05.0'N, LONG 73°07.5'W N c. LAT 41°05.0'N, LONG 73°07.3'W N d. LAT 41°04.8'N, LONG 73°07.3'W 608: At 1200 zone time, on 10 October , you depart San Francisco, LAT 37°48.5'N, LONG 122°24.0'W (ZD +8). You are bound for Yokohama, LAT 35°27.0'N, LONG 139°39.0'E, and you estimate your speed of advance at 22 knots. The distance is 4,536 miles. What is your estimated zone time of arrival at Yokohama?
N a. 0111, 19 October N b. 0211, 19 October N c. 1011, 19 October Y d. 1911, 19 October 732: On 3 January , your 1759 zone time DR position is LONG 60°53.2'W. At that time you observe Polaris with a sextant altitude (hs) of 22°55.8'. The chronometer time of the sight is 09h 57m 10s, and the chronometer error is 02m 26s slow. The index error is 2.9' off the arc, and the height of eye is 52.5 feet. What is your latitude by Polaris?
N a. 21°35.2'N N b. 21°52.5'N Y c. 22°03.6'N N d. 22°22.6'N 747: On 14 March , at 1845 ZT, you take a sextant observation of Polaris. Your DR position is LAT 29°10'N, LONG 154°30'W, and your sextant reads 29°53.5'. Your chronometer reads 04h 42m 36s, and the chronometer error is 02m 24s slow. Your height of eye is 24 feet, and the index error is 1.3' off the arc. Determine the latitude by Polaris.
N a. 29°11.7'N N b. 29°15.5'N N c. 29°18.0'N Y d. 29°21.3'N 813: On 7 November , your 0830 zone time fix gives you a position of LAT 27°36.0'N, LONG 162°19.0'W. Your vessel is on course 289°T and your speed is 19.0 knots. Local apparent noon (LAN) occurs at 1138 zone time, at which time a meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 45°35.0'. What is the latitude at 1200 ZT?
N a. 27°55.1'N N b. 27°57.2'N Y c. 27°59.5'N N d. 28°01.9'N 988: On 29 June , your 0800 zone time fix gives you a position of LAT 26°16.0'S, LONG 61°04.0'E. Your vessel is steaming a course of 079°T at a speed of 15.5 knots. An observation of the Sun's upper limb is made at 0905 zone time, and the observed altitude (Ho) is 25°20.1. The chronometer reads 05h 08m 12s, and the chronometer error is 02m 27s fast. Local apparent noon occurs at 1154 zone time, and a meridian altitude of the Sun's lower limb is made. The observed altitude (Ho) for this sight is 40°44.2'. Determine the vessel's 1200 zone time position.
Y a. LAT 26°02.0'S, LONG 62°05.0'E N b. LAT 26°02.0'S, LONG 62°23.2'E N c. LAT 26°05.1'S, LONG 62°06.3'E N d. LAT 25°56.0'S, LONG 62°03.0'E 1005: On 18 May , your 1030 ZT DR position is LAT 20°41'N, LONG 63°32'W. You are on course 106°T, speed 24 knots. Determine your 1200 position using the following observations of the Sun.
ZONE TIME GHA DECLINATION Ho
1204 61°54.6' N 19°37.6' 88°39.7'
1210 63°24.6' N 19°37.7' 88°59.2'
Y a. LAT 20°32.6'N, LONG 62°57.5'W N b. LAT 20°30.1'N, LONG 63°01.9'W N c. LAT 20°27.6'N, LONG 62°52.4'W N d. LAT 20°25.2'N, LONG 62°56.9'W 1243: What is the width of the widest span of the Cairo Highway Bridge (Upper Mississippi River mile 1.3)?
N a. 800 feet Y b. 675 feet N c. 625 feet N d. 503 feet 1251: On 16 August , your 1600 ZT DR position is LAT 26°17.0'N, LONG 165°17.0'E. You are on course 301°T at a speed of 15 knots. What will be the zone time of sunset at your vessel?
N a. 1827 N b. 1832 Y c. 1838 N d. 1845 1407: At 2350 hours on 23 June, you are at mile 610.5 AHP when you see about a mile ahead white 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 1720: As you approach mile 427.6 AHP, you see on the right side a white buoy with orange bands and open face diamond. This buoy shows __________.
N a. safe water N b. preferred channel Y c. danger N d. special marks 1808: You are on map #4. What is the mile point of the facility known as Gulf Coast Grain Co.?
N a. mile 920 AHP N b. mile 921 AHP N c. mile 922 AHP Y d. mile 923 AHP 1876: On 2 October , your 1845 DR position is LAT 28°09.2'S, LONG 167°48.1'E. You observe a faint star through a hole in the clouds at a sextant altitude (hs) of 11°37.6' bearing 066°T. The index error is 1.3' off the arc, and the height of eye is 42 feet. The chronometer reads 07h 46m 19s and is 0m 51s fast. What star did you observe?
N a. Scheat N b. Ruckbah N c. Caph Y d. Algenib 1901: On 22 April , your 1852 DR position is LAT 23°54.5'N, LONG 117°36.8'W. You observe an unidentified star bearing 248°T at an observed altitude (Ho) of 25°00.9'. The chronometer reads 02h 54m 53s, and is 02m 51s fast. What star did you observe?
Y a. Rigel N b. Betelgeuse N c. Gienah N d. Arcturus 2016: On 23 March , your 1600 ZT DR position is LAT 27°16.3'N, LONG 156°48.2'W. You are on course 063°T at a speed of 18.0 knots. Considering their magnitude, azimuth, and altitude, which group includes the three stars best suited for a fix at star time?
N a. Arcturus, Regulus, Sirius N b. Procyon, Sirius, Capella Y c. Hamal, Rigel, Alphard N d. Betelgeuse, Dubhe, Regulus 2051: On which map would you find Redman Point, Arkansas?
N a. 23 Y b. 20 N c. 17 N d. 5 2115: The south coast of Long Island Sound between Mattituck Inlet and Port Jefferson is __________.
N a. composed of high rocky bluffs N b. a high, flat plateau with sheer cliffs Y c. fringed by rocky shoals N d. low and marshy with isolated beaches 2324: At 1547 ZT, on 22 May , in DR position LAT 45° 12.8' N, LONG 028° 15.4' W, the Moon’s upper limb is observed on the visible horizon, bearing 120.0° psc. Variation is 2° W. What is the deviation?
N a. 1.4°W Y b. 2.6°E N c. 1.4°E N d. 2.6°W 2330: At 0731, what is the approximate depth of water?
N a. 31 feet (9.4 meters) Y b. 41 feet (12.5 meters) N c. 52 feet (15.7 meters) N d. 58 feet (17.6 meters) 2583: You lose GPS and are navigating solely on LORAN. What LORAN line would you follow to leave Six Mile Reef buoy "8C" abeam to port at 1.0 mile?
N a. 9960-W-14885.0 N b. 9960-Y-43980.5 Y c. 9960-Y-43982.0 N d. 9960-Y-43983.5 2585: At 2000 you plot your position as: LAT 41°11'N, LONG 072°35'W. The set and drift is 095°T at 0.8 knot. What course must you steer, and what engine speed must you turn, in order to make good 255°T at 8.5 knots?
Y a. 257°T, 9.3 knots N b. 253°T, 9.3 knots N c. 257°T, 7.7 knots N d. 253°T, 7.7 knots 2686: While on a course of 034°pgc, a light bears 8° on the port bow at a distance of 8.8 miles. What course should you steer to pass 2.5 miles abeam of the light leaving it to port?
N a. 035°pgc Y b. 043°pgc N c. 051°pgc N d. 059°pgc 2712: What is the length of the trip?
N a. 720.8 miles N b. 777.4 miles Y c. 897.2 miles N d. 906.3 miles 2882: Your vessel is steering 096°T at 17 knots. At 1847 a light bears 057°T, and at 1916 the same light bears 033°T. What will be your distance off abeam?
N a. 9.9 miles N b. 10.7 miles Y c. 11.4 miles N d. 11.9 miles 2898: You are steaming on a course of 267°T at 22 knots. At 0433 you observe a lighthouse bearing 290°T. At 0452 the lighthouse bears 328°T. What is your distance off at the second bearing?
Y a. 4.5 nm N b. 5.9 nm N c. 6.6 nm N d. 7.2 nm 3264: You have steamed 1134 miles at 10 knots, and consumed 121 tons of fuel. If you have to steam 1522 miles to complete the voyage, how many tons of fuel will be consumed while steaming at 12 knots?
N a. 146 tons N b. 189 tons N c. 200 tons Y d. 234 tons 3276: While steaming at 15 knots, your vessel burns 326 bbls of fuel per day. What will be the rate of fuel consumption if you decrease speed to 12.2 knots?
Y a. 175 bbls/day N b. 215 bbls/day N c. 277 bbls/day N d. 300 bbls/day 10104: Your GPS position is LAT 36°55.2'N, LONG 75°33.1'W. What is the course per standard magnetic compass to Rudee Inlet (LAT 36°49.8'N, LONG 75°58.0'W)?
N a. 246.0°psc N b. 254.5°psc N c. 261.0°psc Y d. 265.5°psc 11102: What is the velocity of the first PM (Daylight Savings Time) maximum ebb current at Plum Gut on 10 August 1983?
N a. 3.3 knots N b. 4.0 knots N c. 4.5 knots Y d. 5.4 knots 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 15107: 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 __________.
Y a. north northwest N b. south southwest N c. east southeast N d. east 15544: At 2310 your position is LAT 41°05.5'N, LONG 72°33.7'W and you change course to make good 068°T. A radar speed check using Twenty Eight Foot Shoal Buoy indicates your speed over the ground is 13.6 knots. At 2325 Horton Point Light bears 129°T. At 2341 the same light bears 194°T. What is the position of your 2341 running fix?
N a. LAT 41°07.9'N, LONG 72°25.9'W N b. LAT 41°08.3'N, LONG 72°25.8'W Y c. LAT 41°08.5'N, LONG 72°25.6'W N d. LAT 41°08.8'N, LONG 72°25.2'W 15814: At 0130, you obtain the following bearings:
Horton Point Lighthouse 078°T
Mattituck Breakwater Light tower 196°T
What were the course and speed made good between 0100 and 0130?
Y a. 246°T at 9.8 knots N b. 253°T at 9.4 knots N c. 259°T at 9.8 knots N d. 267°T at 9.4 knots 15914: At 0844, the range to the north end of Falkner Island is 2.0 miles and the left tangent bearing is 102°T. What is the approximate charted depth of the water?
N a. 14 ft (4.2 meters) N b. 19 ft (5.8 meters) N c. 22 ft (6.7 meters) Y d. 29 ft (8.8 meters) 15917: At what approximate distance would you expect Bartlett Reef Light to break the horizon, if the visibility is 27 nautical miles?
N a. 5.9 nm N b. 6.9 nm N c. 12.0 nm Y d. 12.8 nm 15943: At 2038 Block Island North Light bears 065°T and Montauk Point Light bears 216°T
Which statement is TRUE?
N a. Your speed made good between your 1959 fix and 2038 fix is 11.0 knots. N b. Your course made good between your 1959 fix and 2038 fix is 102°T. N c. At your 2038 fix, your vessel is governed by the Inland Rules of the Road. Y d. Block Island Sound South Entrance Obstruction Lighted "BIS"
Buoy is located 3.6 miles off your starboard bow.15964: Your 1900 position is LAT 37°12.9'N, LONG 76°13.5'W. You change course to 323°pgc. What is the course per standard magnetic compass?
N a. 309°psc N b. 311°psc Y c. 329°psc N d. 331°psc 16010: The characteristic of Branford Reef Light is __________.
N a. flashing red every 4 seconds N b. flashing red every 3 seconds Y c. flashing white every 6 seconds N d. flashing yellow every 4 seconds 16209: You calculate that the current will be ebbing at the Race at 0700. You should expect to be set in which general direction at the Race?
N a. West N b. North N c. Northeast Y d. East 16359: If your engines are turning for 6.5 knots and the estimated current is north at 0.5 knot. What is the ETA at point "A"?
Y a. 0511 N b. 0501 N c. 0450 N d. 0440 16360: What is the course to steer per gyro compass from the anchorage to point "A" if westerly winds are causing 3° of leeway?
N a. 178°pgc N b. 182°pgc N c. 184°pgc Y d. 187°pgc 16363: At 0405, you increase speed and at 0500 your position is LAT 37°06.0'N, LONG 75°41.1'W. What is the approximate depth of water?
N a. 46 feet (13.9 meters) Y b. 54 feet (16.4 meters) N c. 62 feet (18.8 meters) N d. 66 feet (20.0 meters) 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 16456: What is the course per standard magnetic compass from the anchorage to point A located 0.5 mile east of Cape Charles Lighted Bell Buoy 14?
Y a. 194°psc N b. 190°psc N c. 187°psc N d. 180°psc