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.
99: What is the mile point of the Rosedale Gage?
N a. 598 AHP Y b. 592 AHP N c. 587 AHP N d. 554 AHP 140: If the highest point on your towboat is 52 feet and the West Memphis Gage reads 26 feet what is the vertical clearance when you pass under the Hernando Desoto Bridge (mile 736.6 AHP)?
N a. 25.8 feet Y b. 30.7 feet N c. 42.6 feet N d. 56.7 feet 203: At 1800, your position is LAT 41°06.5'N, LONG 71°43.5'W. How would the buoy which bears 030°T from your position at a range of approximately 0.5 mile be painted?
N a. Horizontally banded, red over green Y b. Horizontally banded, green over red N c. Vertically striped, red and green N d. Solid green with red letters "BIS" 304: A vessel steams 580 miles on course 083°T from LAT 13°12'N, LONG 71°12'W. What are the latitude and longitude of the point of arrival by mid-latitude sailing?
N a. LAT 14°17'N, LONG 61°23'W N b. LAT 14°20'N, LONG 61°21'W Y c. LAT 14°23'N, LONG 61°19'W N d. LAT 14°25'N, LONG 61°17'W 356: At 0410, you take the following bearings:
New Point Comfort Light "2" 242°T
Wolf Trap Light 313°T
Horn Harbor Entrance Light "HH" 262°T
What is your 0410 position?
N a. LAT 37°20.9'N, LONG 76°07.7'W Y b. LAT 37°21.0'N, LONG 76°08.1'W N c. LAT 37°21.1'N, LONG 76°07.9'W N d. LAT 37°21.2'N, LONG 76°08.2'W 406: You depart LAT 49°45.0'N, LONG 06°35.0'W, and steam 3599 miles on course 246.5°T. What is the longitude of your arrival by Mercator sailing?
N a. LONG 76°36.2'W Y b. LONG 77°02.8'W N c. LONG 78°14.0'W N d. LONG 78°22.6'W 488: At 0705, with your gyro again functioning properly, you change course to 096°T. At this time Race Rock Light is bearing 000°T at 0.35 mile. You are now governed by which Navigation Rules?
Y a. International Rules N b. Local Pilot Rules N c. Inland Rules N d. Coastal Fishery Rules 524: The two wavy magenta lines running to Green Hill Point represent __________.
N a. recommended approaches to Green Hill Point N b. a restricted anchorage area Y c. submarine cables N d. prohibited fishing areas 593: What is the length of the trip?
N a. 1195.4 miles N b. 1223.1 miles Y c. 1520.1 miles N d. 1657.8 miles 660: You are planning a voyage between Portland, LAT 46°05'N, LONG 124°00'W, and Korea via LAT 44°00'N, LONG 155°00'E. Which statement is TRUE? (Use gnomonic tracking chart WOXZC 5270)
N a. You can sail a great circle track between the two points. N b. The vertex of the great circle track is north of the Aleutian Islands. N c. Distance is measured in 60-mile segments using the length of a degree of latitude at the mid-latitude. Y d. You can steam on course 270°T, at latitude 52°N, between longitudes 149°W and 160°W in a composite sailing. 734: On 11 March , your 1846 zone time DR position is LAT 25°05.7'N, LONG 124°29.0'W. At that time you observe Polaris with a sextant altitude (hs) of 25°59.1'. The chronometer time of the sight is 02h 44m 01s, and the chronometer error is 02m 15s slow. The index error is 3.9' on the arc, and the height of eye is 42.7 feet (13.0 meters). What is your latitude by Polaris?
N a. 25°14.2'N Y b. 25°17.9'N N c. 25°28.1'N N d. 26°15.2'N 1234: What is the distance from the Amoco Docks at Baton Rouge, LA, to Pittsburgh, PA?
Y a. 1681.7 miles N b. 1575.3 miles N c. 981.7 miles N d. 727.9 miles 1238: If the highest point of your towboat is 54 feet above the water and the Natchez Gage reads 24.8 feet, what will be your vertical clearance when passing under the Natchez-Vidalia westbound Highway Bridge?
N a. 35.9 feet Y b. 47.2 feet N c. 49.6 feet N d. 57.5 feet 1339: At 1300, 5 January, the river will be temporarily closed to navigation for six hours at mile 531.3 AHP due to repairs to a bridge. What minimum speed over the ground must you make from Natchez Gage in order not to be delayed?
N a. 5.7 mph Y b. 6.0 mph N c. 6.8 mph N d. 7.3 mph 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 1759: The Greenville Gage reads 1.6 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?
Y a. 74.5 feet N b. 64.2 feet N c. 55.5 feet N d. 44.4 feet 1773: What daymark should you see as you approach French Point Light (mile 915.4 AHP)?
Y a. Red triangle N b. Green triangle N c. Red diamond N d. Green diamond 1928: On 17 March , your 0520 DR position is LAT 27°23.0'N, LONG 39°42.0'W. At this time you observe an unidentified star bearing 270°T with an observed altitude of 46°30.2'. The chronometer reads 08h 22m 15s, and is 01m 45s fast. What star did you observe?
N a. Altair N b. Alkaid Y c. Arcturus N d. Deneb 1981: Where can scheduled broadcast times of river stages be found?
N a. Sailing Directions Y b. Light List N c. List of Lights N d. Coast Pilot 2049: What is the length of the trip?
N a. 405.8 miles Y b. 904.0 miles N c. 1002.0 miles N d. 1136.8 miles 2151: On 16 June , 0612 zone time, morning stars were observed. The vessel's position was LAT 27°23.0'S, LONG 56°22.0'W. The vessel is steaming at 16.0 knots on a course of 212°T. A sextant observation of the Sun's lower limb is made at 0850 zone time. The chronometer reads 00h 53m 19s, and the sextant altitude is 22°58.6'. The index error is 2.0' off the arc, and the chronometer error is 02m 43s fast. Your height of eye is 61.0 feet. What is the azimuth (Zn) of this sight using the assumed position?
Y a. 044.3° N b. 052.6° N c. 136.1° N d. 148.4° 2160: On 17 April , your vessel's 1856 zone time DR position is LAT 22°35.0'N, LONG 63°15.0'W. At that time, a sextant observation of the star Sirius is made. The sextant altitude is 42°45.0' and the chronometer reads 10h 59m 27s.
The index error is 2.6' off the arc, and the chronometer error is 03m 01s fast. Your height of eye is determined to be 45 feet. What is the computed altitude (hc) and azimuth (Zn) for this sight using the assumed position?
N a. 42°40.0', 214.9°T N b. 42°40.0', 325.1°T Y c. 42°51.6', 214.9°T N d. 42°51.6', 325.1°T 2533: In high water conditions, which publication would you consult for the latest information on buoys between Baton Rouge and Cairo?
N a. List of Buoys and Daymarks N b. Coast Pilot N c. Army Corps. of Engineers Navigation Chart Y d. U.S.C.G. Local Notice to Mariners 2577: On 23 July, you take a time tick using the 0900 GMT Cape Town broadcast. You hear a repeating series of 59 dots followed by a dash. At the beginning of the fifth dash you start your stopwatch. The chronometer reads 08h 39m 16s at the time the stopwatch reads 01m 42s. The chronometer error at 0900 GMT, 22 July, was 22m 24s slow. What is the chronometer rate?
Y a. 00m 02s losing N b. 01m 02s gaining N c. 22m 24s losing N d. 22m 26s slow 2698: While on a course of 138°T, a light bears 14° on the starboard bow at a distance of 8.6 miles. What course should you steer to pass 3 miles abeam of the light leaving it to starboard?
Y a. 132°T N b. 135°T N c. 138°T N d. 141°T 2880: Your vessel is steering 218°T at 19 knots. At 2223 a light bears 261°T, and at 2234 the same light bears 289°T. What will be your distance off abeam?
N a. 4.5 miles Y b. 4.9 miles N c. 5.3 miles N d. 5.7 miles 3273: Your vessel arrives in port with sufficient fuel to steam 1175 miles at 19 knots. If you are unable to take on bunkers, at what speed must you proceed to reach your next port, 1341 miles distant?
N a. 16.7 knots N b. 17.3 knots Y c. 17.8 knots N d. 19.4 knots 3457: You wish to make good a course of 035°T while turning for an engine speed of 12 knots. The set is 340°T, and the drift is 2 knots. What speed will you make good along the track line?
N a. 12.2 knots N b. 12.7 knots Y c. 13.0 knots N d. 13.3 knots 3471: You are underway on course 172°T at 18.5 knots. The current is 078°T at 2.8 knots. What is the speed being made good?
Y a. 18.5 knots N b. 19.0 knots N c. 19.5 knots N d. 20.0 knots 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 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 11007: What will be the height of the high water at Mount Sinai Harbor on the morning of 26 August 1983?
N a. 4.1 feet Y b. 6.3 feet N c. 7.2 feet N d. 8.4 feet 11403: At 2115 your position is LAT 41°14.4'N, LONG 72°07.2'W. At 0015 your position is LAT 41°03.3'N, LONG 72°37.9'W. What was your true course made good?
N a. 062°T N b. 076°T Y c. 245°T N d. 259°T 11908: 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 330° at 1.2 knots, and a southerly wind causes 3° of leeway?
Y a. 117°T N b. 112°T N c. 104°T N d. 102°T 12205: Your vessel is steady on a heading of 160° per standard magnetic compass when you sight Southwest Ledge Light and New Haven Outer Channel Range Rear Light in line dead astern. What is the deviation of the compass based on this observation?
Y a. 2°E N b. 2°W N c. 5°E N d. 5°W 12505: You are on course 056°psc, when you take the following bearings:
New Point Comfort Spit Light "2" 260°psc Horn Harbor Entrance Light "HH" 285°psc Wolf Trap Light 336°psc What is the position of the fix?
Y a. LAT 37°19.3'N, LONG 76°08.5'W N b. LAT 37°19.3'N, LONG 76°08.8'W N c. LAT 37°19.2'N, LONG 76°08.2'W N d. LAT 37°19.2'N, LONG 76°08.7'W 12704: You are on course 137° per standard magnetic compass when you take the following bearings: Watch Hill Point Light - 051°psc Montauk Point Light - 184°psc Race Rock Light - 279°psc What is your position?
Y a. LAT 41°15.2'N, LONG 71°54.4'W N b. LAT 41°15.1'N, LONG 71°53.8'W N c. LAT 41°15.1'N, LONG 71°54.9'W N d. LAT 41°15.0'N, LONG 71°53.7'W 12904: Your 0916 position is LAT 37°10.9'N, LONG 75°29.6'W. You are turning for 12.3 knots. What is your ETA at North Chesapeake Bay Entrance Buoy NCA?
N a. 1035 N b. 1043 Y c. 1051 N d. 1101 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 13105: At 1048 you are in the entrance to Great Salt Pond on Block Island with buoy "5" close aboard. What is your ETA at the west gap of Point Judith Harbor of Refuge if you make good 8.3 knots?
N a. 1149 N b. 1154 N c. 1158 Y d. 1203 13210: At 0943, your position is LAT 41°14.8'N, LONG 71°54.3'W. You are turning for 12.2 knots. What is your ETA at the entrance to Great Salt Pond on Block Island?
Y a. 1054 N b. 1048 N c. 1040 N d. 1032 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 15012: 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 N c. 75°39.3'W Y d. 75°40.5'W 15165: At 2000, your position is LAT 37°04.1'N, LONG 76°05.6'W. You change course for the Eastern Shore. At 2037, Old Plantation Flats Light bears 033°pgc, and York Spit Light bears 282°pgc. The course made good from your 2000 position was __________.
Y a. 006°T N b. 014°T N c. 020°T N d. 028°T 15213: At 2015, your vessel is at the Chesapeake Bay Bridge and Tunnel midway between buoys "13" and "14". If the height of tide is -1 foot (-0.3 meters), what is the approximate depth of water?
Y a. 53 feet (15.5 meters) N b. 46 feet (13.9 meters) N c. 40 feet (12.1 meters) N d. 35 feet (10.6 meters) 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 15318: You passed Cape Henry Light at 0730 outbound at maximum flood. What approximate current can you expect on entering Chesapeake Channel?
N a. Slack before ebb N b. Slack before flood N c. Ebb current Y d. Flood current 15457: What is the distance from Lamberts Point to Thimble Shoal Lt.?
N a. 9.0 miles N b. 9.8 miles N c. 10.6 miles Y d. 11.2 miles 15743: At 2155 Montauk Point Light bears 249°T, Watch Hill Point Light bears 335°T, and Block Island North Light bears 045°
T. At this time, you wish to change course to 288°T. The current has a set of 355°T and a drift of 2.0 knots. If your vessel is turning RPM's for 9 knots, what course must you steer in order to make your desired course good?
Y a. 276°T N b. 280°T N c. 284°T N d. 288°T 15817: 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 16512: At 0748, you take the following bearings:
Watch Hill Point Light bearing 020.5°pgc
Race Point Light Light bearing 269.5°pgc
What is the approximate depth of water at this position?
N a. 325 feet N b. 175 feet Y c. 130 feet N d. 104 feet 16540: You sight Bartlett Reef Light in range with New London Harbor Light bearing 038°pgc. At the time of the bearing,
the helmsman reports he was heading 253°pgc and 269° per standard magnetic compass. What is the deviation for that heading?
Y a. 1°E N b. 1°W N c. 4°E N d. 4°W 16543: Based on the information in the previous question, what is your ETA at the distress scene?
N a. 0006 N b. 0010 Y c. 0016 N d. 0021