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.
54: What is the length of the trip?
N a. 1566.4 miles N b. 1334.6 miles N c. 1332.2 miles Y d. 1088.0 miles 56: The Red River Landing Gage reads 5.2 feet. The Low Water Reference Plane for the Red River is 10.6 ft. Which of the following statements is TRUE?
N a. The depth over revetment at Old River is 25.2 feet. Y b. River level is below the Low Water Reference Plane. N c. The depth over Old River Lock sill is greater than 11 ft. N d. This gage reading is at a higher elevation than the same reading on the Gage at Head of Passes. 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 147: After passing Oak Bend Lt. (mile 425.6 AHP) you see a light gray shaded area extending into the river shown on the map. This indicates a __________.
N a. fleeting area N b. weir N c. dike Y d. revetment 158: Which daymark should you see as you approach French Point Light (mile 915.4 AHP)?
Y a. Red triangle N b. Green square N c. Red diamond N d. Green diamond 187: At 2020, you obtain a fix using the following information:
9960-X-27112
9960-Y-41432
Cape Charles Lighted Bell Buoy "14" bears 333°pgc. Your longitude is __________.
N a. 75°38.9'W N b. 75°39.1'W Y c. 75°40.5'W N d. 75°41.4'W 219: At 1630, you reach point A and come right to 204°T. Your engine speed is 12 knots. Your 1715, position is LAT 37°09.8'N, LONG 75°37.4'W. The current was __________.
Y a. 067°T at 1.4 knots N b. 246°T at 1.0 knots N c. 067°T at 1.0 knots N d. 246°T at 1.4 knots 240: 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. Which of the following will serve as a line marking the hazards and keep your vessel in safe water?
N a. A bearing to Little Gull Island Light of not less than 090° N b. Maintaining a 7nm range off Orient point Y c. Danger bearing to Black Point of not more than 064°T N d. A distance to Saybrook Breakwater Light of not less than 1.3 miles 403: You receive a distress call from a vessel reporting her position as LAT 30°21'N, LONG 88°34'W. Your position is LAT 24°30'N, LONG 83°00'W. Determine the true course and distance to the distress scene by Mercator sailing.
N a. 317°T, 470 miles Y b. 320°T, 460 miles N c. 322°T, 455 miles N d. 324°T, 460 miles 414: A vessel at LAT 49°45'N, LONG 6°35'W, heads for a destination at LAT 25°50'N, LONG 77°00'W. Determine the true course and distance by Mercator sailing.
Y a. 246.5°T, 3597 miles N b. 253.0°T, 3648 miles N c. 268.6°T, 3483 miles N d. 066.4°T, 3602 miles 459: Determine the great circle distance and initial course from LAT 25°47.0'N, LONG 79°59.5'W to LAT 38°42.0'N, LONG 09°10.5'W.
N a. 3341.0 miles, 063°T N b. 3347.0 miles, 063°T N c. 3427.8 miles, 061°T Y d. 3588.6 miles, 059°T 572: At 0908, you change course to 010°T. What course should you steer per standard magnetic compass?
N a. 359° Y b. 021° N c. 017° N d. 003° 598: At 1132, 24 July, you pass Natchez Beam Lt. (mile 364.8 AHP). What is your ETA off the Memphis Gage if you average 8.0 mph?
N a. 2345, 25 July N b. 0525, 26 July Y c. 0947, 26 July N d. 2215, 26 July 637: The highest point on your towboat is 48 feet above the water, and the Memphis Gage reads +7.5 feet. What is the vertical clearance when you pass under the Hernando Desoto Bridge in Memphis?
N a. 48.0 feet Y b. 53.2 feet N c. 68.2 feet N d. 116.0 feet 815: On 13 October , your 0515 zone time fix gives you a position of LAT 26°53.0'N, LONG 90°05.0'W. Your vessel is on course 068°T, and your speed is 7.8 knots. Local apparent noon (LAN) occurs at 1145 zone time, at which time a meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 54°51.5'. What is the latitude at 1200 ZT?
Y a. 27°13.3'N N b. 27°14.6'N N c. 27°15.7'N N d. 27°16.8'N 978: On 11 November , your 0730 zone time position was LAT 19°58.0'N, LONG 143°54.0'W. Your vessel was steaming on course 084°T at a speed of 15.0 knots. An observation of the Sun's lower limb was made at 0931 ZT. The chronometer read 07h 29m 22s and was slow 02m 22s. The observed altitude (Ho) was 44°17.6'. LAN occurred at 1125 zone time (ZD +10). The observed altitude (Ho) was 52°17.4'. What was the longitude of your 1200 zone time running fix?
N a. 142°34.7'W N b. 142°37.1'W Y c. 142°40.2'W N d. 142°44.2'W 1090: At 0450 zone time, on 25 June , your DR position is LAT 21°26.0'N, LONG 160°24.5'W. You are steering course 100°T at a speed of 10 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0514 running fix. NP-0020
N a. LAT 21°27.0'N, LONG 160°17.0'W Y b. LAT 21°25.0'N, LONG 160°18.0'W N c. LAT 21°22.0'N, LONG 160°17.0'W N d. LAT 21°20.0'N, LONG 160°15.5'W 1125: Where would you find out which buoys, if any, are in place at Concordia Bar crossing (mile 596.0 AHP)?
Y a. Local Notice to Mariners N b. Bulletin board at the Rosedale Gage N c. Waterways Journal N d. None of the above 1252: On 13 August , your 0345 ZT DR position is LAT 21°35.0'
N, LONG 135°26.0'W. You are on course 052°T at a speed of 14 knots. What will be the zone time of sunrise at your vessel?
N a. 0443 N b. 0449 Y c. 0536 N d. 0540 1298: Your company wants to know at what time you will be arriving at the fleeting area at Sycamore Chute Light (mile 740.3 AHP) in Memphis, TN You are making turns for 9.0 mph and you estimate the average current at 2.2 mph. Figuring the distance and time from Hole in the Wall Lt. (mile 373.4 AHP), what is your ETA at Sycamore Chute Lt.?
Y a. 1242, April 19th N b. 1645, April 19th N c. 2242, April 19th N d. 2333, April 19th 1413: You complete changing out your tow and get underway enroute Ark City Tank Storage (mile 554.0 AHP) to deliver the tank barges. What is the distance you must travel from Cairo Point Light?
N a. 202.1 miles Y b. 400.7 miles N c. 554.2 miles N d. 605.8 miles 1495: On 9 September , your 2043 ZT position is LAT 24°18'N, LONG 66°46'W. You observe Polaris bearing 001°pgc. At the time of the observation the helmsman noted that he was heading 031°pgc and 040°psc. The variation is 11°W. What is the deviation for that heading?
N a. 0° N b. 1°W N c. 3°W Y d. 2°E 1680: On 31 October , your 1700 zone time DR position is LAT 27°17.0'N, LONG 116°10.0'W, when an amplitude of the Sun is observed. The Sun's center is on the visible horizon and bears 246.5° per standard magnetic compass. Variation in the area is 8.5°E. The chronometer reads 01h 01m 23s and the chronometer error is 01m 54s slow. What is the deviation of the standard compass?
N a. 0.8°E Y b. 0.8°W N c. 2.5°E N d. 2.5°W 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 1748: As you approach Walnut Point Light (mile 522.5 AHP),
which type of daymark would you see on the light structure?
N a. Red triangle N b. Green diamond N c. Green square Y d. Red diamond 1893: On 22 July , your 0442 DR position is LAT 26°35.6'N, LONG 22°16.7'W. You observe an unidentified star bearing 104°T at an observed altitude (Ho) of 9°55.7'. The chronometer reads 05h 39m 03s, and is 03m 14s slow. What star did you observe?
N a. Hamal Y b. Rigel N c. Menkar N d. Acamar 1986: You are in charge of a vessel that damages an aid to navigation established and maintained by the United States. Which statement is TRUE?
N a. You must take the aid in tow and deliver it to the nearest Coast Guard, Marine Safety Office. N b. You must report the allision to the nearest Army Corps.. of
Engineers Office.N c. You may wait until you reach your destination before reporting the allision to the U.S. Coast Guard. Y d. You must report the accident to the nearest Officer in Charge, Marine Inspection. 2328: As you pass through the Chesapeake Bay Bridge and Tunnel, you sight Trestle "B" in line bearing 018°pgc. What is the gyro error by observation?
N a. 2°E Y b. 0° N c. 2°W N d. 4°W 2535: What is the mile point of Hickman, KY Gage?
N a. 846.4 AHP N b. 889.0 AHP Y c. 922.0 AHP N d. 937.2 AHP 2871: Your vessel is on a course of 052°T at 16 knots. At 0916 a light bears 078.5°T, and at 0927 the light bears 097°T.
At what time and at what distance off will your vessel be when abeam of the light?
N a. 0929, 2.0 miles N b. 0932, 2.3 miles N c. 0935, 2.6 miles Y d. 0938, 2.9 miles 2884: Your vessel is steering 238°T at 11 knots. At 2304 a light bears 176°T, and at 2323 the same light bears 155°T. What will be your distance off abeam?
N a. 7.5 miles N b. 8.0 miles Y c. 8.5 miles N d. 9.0 miles 3100: The pitch of the propeller on your vessel is 19'09". You estimate the slip at -3%. If you averaged 82 RPM for the day's run, how many miles did you steam?
N a. 370.8 N b. 373.6 N c. 393.7 Y d. 395.3 3112: While enroute from Montevideo to Walvis Bay a vessel's course is 116°psc. The variation for the locality is 25°W and the deviation is 6°W. What is the true course made good if a southerly wind produces 1° leeway?
Y a. 084°T N b. 086°T N c. 148°T N d. 085°T 3317: Your vessel consumes 156 barrels of fuel per day at a speed of 13.0 knots. What will be the fuel consumption of your vessel at 16.0 knots?
N a. 192 bbls N b. 236 bbls Y c. 291 bbls N d. 315 bbls 3619: Your vessel is steering course 149°psc, variation for the area is 13°E, and deviation is 4°E. The wind is from the northeast, producing a 4° leeway. What true course are you making good?
N a. 128°T N b. 136°T N c. 162°T Y d. 170°T 3639: You desire to make good a true course of 132°. The variation is 10°W, magnetic compass deviation is 5°E, and gyrocompass error is 5°W. A northeast by east wind produces a 5° leeway. What is the course to steer per standard magnetic compass to make the true course good?
Y a. 132°psc N b. 135°psc N c. 137°psc N d. 142°psc 3761: Your vessel is proceeding up a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 283°
T, and the variation is 13°E. If the heading of your vessel at the time of the sighting is 278° per standard compass, what is the deviation?
N a. 5°E N b. 5°W N c. 8°E Y d. 8°W 4004: 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 166°.
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. 2.0°W Y b. 1.5°W N c. 1.0°W N d. 0.5°W 10907: What is the time (DST ZD +4) of the AM high tide at York Point, Poquoson River on 8 September 1983?
N a. 0955 Y b. 1048 N c. 1055 N d. 1102 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 12201: Your vessel is steady on a heading of 203° per standard magnetic compass when you sight New Haven Light and New Haven Outer Channel Range Front Light in line over the stern. This information indicates that the __________.
N a. existing deviation table is correct for this heading N b. compass error is 17°W Y c. deviation table is in error for this heading N d. deviation is 1°E 13002: At 0829 your position is LAT 41°02.9'N, LONG 72°57.4'W. You are making turns for 8.5 knots. What is your ETA at a position midway between buoys "1" and "2" at the entrance of New Haven Outer Channel?
N a. 0925 N b. 0931 N c. 0938 Y d. 0944 13305: What are the bottom characteristics of Nautilus Shoal (LAT 37°03'N, LONG 75°56'W)?
N a. Sand and shells N b. Hard sand Y c. Fine gray sand N d. Mud and sand 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 15511: From your 1830 fix, you come left to a course of 290°T.
Which of the following statements concerning Watch Hill Light is FALSE?
N a. The nominal range of its white light is 15 miles. N b. It displays both red and white lights. N c. Its horn blasts every 30 seconds in fog. Y d. Its geographic range is 18.5 miles at a 35 foot (10.7 meter) height of eye. 15669: The area between Block Island and Montauk Point that is bounded by dashed magenta lines is a __________.
N a. naval exercise area N b. fish trap area Y c. submerged cable area N d. restricted navigation area 15763: At 0715, you take the following bearings:
Race Rock Light 324°pgc
Little Gull Island Light 245°pgc
Mt. Prospect Antenna 034°pgc
Based on your 0715 fix, which statement is TRUE?
N a. You are to the right of your track line. Y b. The charted depth is about 265 feet (80.3 meters). N c. You are in a cable area. N d. You are governed by the Inland Rules. 16113: After you enter Thimble Shoal Channel, you will alter course to pass between Trestle "A" and "B". Which channel should you use?
N a. Thimble Shoal Main Channel or the South Auxiliary Channel N b. Any of the channels but keep to the right hand side Y c. The South Auxiliary Channel N d. Thimble Shoal Main Channel 16206: You are steering 087°pgc and turning for 6.8 knots. At 0600, you take the following bearings:
Little Gull Island Light bearing 089.5° pgc
Bartlett Reef Light bearing 047° pgc
What is your 0600 position?
N a. LAT 41°11.2'N, LONG 72°14.6'W Y b. LAT 41°12.1'N, LONG 72°13.8'W N c. LAT 41°12.3'N, LONG 72°14.7'W N d. LAT 41°12.5'N, LONG 71°14.9'W 16459: What is the course to steer per gyro compass from the anchorage to point "A" if easterly winds are causing 3° of leeway?
N a. 178°pgc Y b. 181°pgc N c. 185°pgc N d. 189°pgc