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.
49: As you pass under the Greenville Highway Bridge, you estimate the current as 4.5 mph. What is the speed over the ground, if your vessel is making turns for 9 mph?
Y a. 13.5 mph N b. 14.5 mph N c. 15.5 mph N d. 16.5 mph 51: As you approach Anconia Pt. Light (mile 528.6 AHP), which type of dayboard would you see on the light structure?
N a. Green diamond Y b. Green square N c. Red square N d. Red diamond 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 106: You are steaming at 22 knots and burning 319 barrels of fuel per day. You must decrease your consumption to 137 barrels per day. What must you reduce your speed to in order to burn this amount of fuel?
N a. 12.4 N b. 14.8 Y c. 16.6 N d. 18.2 116: At which of the following times would you be able to listen to lower Mississippi River conditions on VHF Channel 22?
N a. 0900 hours N b. 1100 hours Y c. 1300 hours N d. 1700 hours 128: At Filter Point Light (mile 475 AHP) there are 2 close straight dashed lines on the map. What do these lines represent?
N a. Submerged oil pipelines N b. Submerged telephone cables N c. Submerged gas pipelines Y d. Aerial power cables 163: Which light will you be passing at 0059, on 22 September, if you make good 9.2 mph?
N a. Kate Aubrey Lt. Y b. Obion Bar Lt. N c. Trotter Lt. N d. Quaker Oats Lt. 236: From your 0830 position, you wish to make good 097°T. There is no current, but a southerly wind is producing 3° leeway. What course should you steer per standard magnetic compass in order to make good your true course?
N a. 109°psc N b. 112°psc Y c. 115°psc N d. 118°psc 250: At 0045, you obtain the following information:
Radar range to Inlet Point is 1.4 miles;
Radar range to Rocky Point is 2.8 miles.
Radar range to Horton Point is 2.8 miles.
What were the set and drift between 0005 and 0045?
N a. 275°true, 0.9 knot N b. 275°true, 1.4 knots Y c. 095°true, 1.4 knot N d. 095°True, 0.9 knots 323: 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. 2258 N b. 2246 Y c. 2240 N d. 2230 337: If you make good a speed of 6.0 knots from your 1810 position, what is your ETA at Chesapeake Channel Lighted Bell Buoy "2C"?
N a. 1900 N b. 1855 N c. 1845 Y d. 1833 338: 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 Y c. Flood current N d. Ebb current 482: The great circle distance from LAT 25°50'N, LONG 77°00'W to LAT 35°56'N, LONG 06°15'W is 3616 miles, and the initial course is 061.7°T. Determine the longitude of the vertex, given the latitude of the vertex as 37°34.9'N.
N a. 25°49.8'W N b. 25°53.2'W Y c. 25°59.0'W N d. 26°03.4'W 553: At 0507, Stratford Shoal Middle Ground Light bears 208°pgc. What is the position of your 0507 running fix?
N a. LAT 41°04.6'N, LONG 73°04.7'W N b. LAT 41°04.8'N, LONG 73°04.8'W N c. LAT 41°04.8'N, LONG 73°04.9'W Y d. LAT 41°05.1'N, LONG 73°05.1'W 636: As you approach Dean Island Light (mile 754.8 AHP), which type of daymark will be observed at the light?
N a. Green triangle N b. Red and green banded square N c. Green square daymark Y d. Diamond-shaped green daymark 683: 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 N c. Red - Triangle Y d. Red - Diamond 993: Your 0745 ZT, 15 July , position is LAT 29°04.0'N, LONG 71°17.5'W. You are on course 165°T, and your speed is 8.0 knots. You observed 3 morning sun lines. Determine the latitude and longitude of your 1130 running fix? NP-0003
Y a. LAT 28°35.0'N, LONG 71°08.5'W N b. LAT 28°39.8'N, LONG 71°04.0'W N c. LAT 28°40.5'N, LONG 71°13.0'W N d. LAT 28°43.3'N, LONG 71°02.5'W 1137: What is the length of the trip?
N a. 1195.4 miles N b. 1223.1 miles N c. 1464.8 miles Y d. 1520.1 miles 1393: It is 15 July and you are keeping +7 zone time. You are on course 095°, speed 16 knots. Your 0800 DR position is LAT 25°39.4'N, LONG 129°46.2'W. What is the time of the second estimate of LAN by ship's clocks?
N a. 13h 40m 17s Y b. 13h 38m 19s N c. 12h 42m 20s N d. 12h 38m 20s 1461: On 27 June , your 0734 zone time DR position is LAT 22°14.0'N, LONG 53°52.0'W. At that time, you observe the Sun bearing 069.5°psc. The chronometer reads 11h 32m 51s and the chronometer error is 01m 26s slow. The variation is 5°E. What is the deviation of the standard magnetic compass?
Y a. 1.6°E N b. 2.9 W N c. 2.9°E N d. 3.2°E 1679: On 13 October , your vessel's 1722 zone time DR position is LAT 27°36'S, LONG 136°16'E, when an amplitude of the Sun is observed. The Sun's center is on the celestial horizon and bears 266° per standard magnetic compass. Variation in the area is 2°W. The chronometer reads 08h 24m 19s and is 01m 43s fast. What is the deviation of the standard magnetic compass?
N a. 2.3°E Y b. 2.8°W N c. 4.8°E N d. 6.8°W 1721: What is the total length of the trip?
Y a. 850.6 miles N b. 894.8miles N c. 922.5 miles N d. 946.5 miles 1783: At 2048 ZT, on 13 October , in DR position LAT 44°02.8'S, LONG 146°58.3'E, you observe an amplitude of Venus. The planet is about one Sun's diameter above the visible horizon and bears 222.2°psc. The variation is 15°E. What is the deviation?
N a. 0.0° N b. 1.1°E Y c. 1.0°W N d. 1.5°W 1870: On 12 June , your 1845 DR position is LAT 21°47'N, LONG 46°52'W when you observe a faint unidentifiable star through a break in the clouds. The star bears 313°T at a sextant altitude (hs) of 14°56.3'. The index error is 0.5' on the arc, and the height of eye is 45 feet. The chronometer reads 09h 43m 27s, and the chronometer error is 1m 46s slow. What star did you observe?
Y a. Menkalinan N b. Mirzam N c. Theta Aurigae N d. Alnitak 1900: On 22 May , your 0437 DR position is LAT 25°18.5'N, LONG 51°18.0'W. You observed an unidentified star bearing 233°T at an observed altitude (Ho) of 29°42.3'. The chronometer reads 07h 40m 40s, and is 03m 24s fast. What star did you observe?
N a. Markab N b. Diphda Y c. Sabik N d. Hamal 2109: At 0100, you obtain the following bearings:
Rocky Point Lookout Tower 062°T
Horton Point Lighthouse 189°T
What was the speed made good between 0045 and 0100?
Y a. 7.4 knots N b. 8.0 knots N c. 8.7 knots N d. 9.2 knots 2335: You are underway and intend to make good a course of 088°T. You experience a current with a set and drift of 300°T at 2.4 knots, and a southerly wind produces a leeway of 3°. You adjust your course to compensate for the current and leeway, while maintaining an engine speed of 16 knots. What will be your speed made good over your intended course of 088°T?
N a. 13.4 knots Y b. 13.9 knots N c. 14.4 knots N d. 14.9 knots 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 2404: At 0812, you are on course 132°T. The standard magnetic compass reads 135°. What should you conclude?
N a. The deviation table is correct for that heading. Y b. Your compass may be influenced by a local magnetic disturbance. N c. You should adjust the magnetic compass. N d. The deviation is increasing as you go south. 2682: While on a course of 066°pgc, a light bears 18° on the port bow at a distance of 12.3 miles. What course should you steer to leave the light 4 miles abeam to port?
Y a. 067°pgc N b. 072°pgc N c. 079°pgc N d. 085°pgc 2707: You are underway on course 128°T at a speed of 17.6 knots. You sight a daymark bearing 126°T at a radar range of 4.3 miles at 1649. If you change course at 1654, what is the course to steer to leave the daymark abeam to starboard at 0.5 mile?
Y a. 113°T N b. 116°T N c. 119°T N d. 136°T 3258: You have steamed 525 miles at 16.0 knots, and consumed 105 tons of fuel. If you have 308 tons of usable fuel remaining, how far can you steam at 19 knots?
N a. 920 miles Y b. 1092 miles N c. 1297 miles N d. 2172 miles 3319: 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 12s. When compared to the chronometer, the comparing watch reads 08h 01m 22s, and the chronometer reads 07h 59m 39s. What is the chronometer error?
N a. 0m 12s fast N b. 1m 10s fast N c. 0m 21s slow Y d. 1m 31s slow 3455: You wish to make good a course of 230°T while turning for an engine speed of 12.5 knots. The set is 180°T, and the drift is 1.7 knots. What course should you steer?
N a. 244°T Y b. 236°T N c. 231°T N d. 222°T 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 3624: Your vessel is steering course 073°psc, variation for the area is 15°E, and deviation is 4°E. The wind is from the southeast, producing a 4° leeway. Which true course are you making good?
N a. 050°T N b. 058°T Y c. 088°T N d. 096°T 3648: The true course between two points is 312°. Your gyrocompass has an error of 3°W. You make an allowance of 4° leeway for a west by south wind. What gyro course should be steered to make the true course good?
N a. 305°pgc Y b. 311°pgc N c. 315°pgc N d. 318°pgc 3708: At what time would you listen to VHF Channel 22 (157.1 MHz) for information concerning the stage of the river between Memphis and Cairo?
Y a. 1300 N b. 1435 N c. 1620 N d. 1815 3762: Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 196°T, and the variation is 7°E. If the heading of your vessel at the time of the sighting is 192° per standard magnetic compass, what is the deviation?
N a. 3°E Y b. 3°W N c. 4°E N d. 4°W 10107: What is the first course per standard magnetic compass (psc) in the outbound southeasterly traffic lane of the Chesapeake Bay entrance traffic separation scheme?
N a. 133°psc N b. 138°psc N c. 143°psc Y d. 148°psc 11104: What is the time of the first PM (Daylight Savings Time) maximum ebb current at Plum Gut on 10 August 1983?
N a. 1231 N b. 1249 N c. 1340 Y d. 1445 11400: At 1035 your GPS position of LAT 41°05.3'N, LONG 72°33.7'W. At 1103 your position is LAT 41°09.0'N, LONG 72°40.0'W. What was your speed made good?
N a. 6.1 knots N b. 9.5 knots Y c. 13.0 knots N d. 14.8 knots 12210: You sight New Haven Outer Channel Range Rear Light in line with the Outer Channel Range Front Light bearing 343° per standard magnetic compass. What is your compass error?
N a. 5°E N b. 5°W N c. 9°E Y d. 9°W 15022: You are upbound approaching Springfield Bend Lt. (mile 244.8 AHP) downriver from Profit Island. Which of the following statements is TRUE?
N a. Profit Island Chute is open to navigation and is a shortcut for single-barge tows. N b. Tow length must not exceed 600 feet to use Profit Island Chute. Y c. Profit Island Chute is closed to navigation. N d. Tows must navigate towards right descending bank when passing Profit Island Chute. 15111: At 1810, you sight a buoy on your starboard side labeled "19".
This buoy marks __________.
N a. a submerged obstruction in York Spit Channel N b. the visibility limit of the red sector of Cape Henry Light Y c. the side of York Spit Channel N d. the junction of the York Spit and York River Entrance Channels 15218: What is your 2118 position?
N a. LAT 36°57.0'N, LONG 76°01.5'W Y b. LAT 36°57.4'N, LONG 76°01.9'W N c. LAT 36°57.8'N, LONG 76°01.5'W N d. LAT 36°58.2'N, LONG 76°02.4'W 15412: Determine your 1915 position using the following information obtained at 1915.
Visual bearings
Cape Charles Light 107°pgc
Cape Henry Light 172°pgc
Radar Bearing and Range
Chesapeake Channel Tunnel South Light 189°pgc at 7.2 miles
N a. LAT 37°03.5'N, LONG 76°05.9'W N b. LAT 37°03.5'N, LONG 76°09.3'W N c. LAT 37°05.9'N, LONG 76°03.5'W Y d. LAT 37°09.3'N, LONG 76°03.1'W 15467: At 1018, you are entering York Spit Channel and buoy "19" is abeam to starboard. At 1031, buoy "23" is abeam. What speed are you making good?
N a. 8.4 knots Y b. 8.8 knots N c. 9.7 knots N d. 9.9 knots 15615: 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 is __________.
Y a. 359°T N b. 006°T N c. 014°T N d. 020°T 15918: At 1038, you are 0.4 mile south of Long Sand Shoal Buoy "8A" on course 090°T when visibility is reduced to 1 mile in rain and haze. You intend to stay on 090°T until your Loran shows a reading that you can safely follow to the approaches of New London. Which of the following Loran readings will you look for?
N a. 9960-W-14720 N b. 9960-X-26290 Y c. 9960-Y-43980 N d. 9960-W-14810 16009: The maximum ebb current at a location 4.3 miles south of Stratford Point will occur at 0413. The predicted current will be 1.0 knot at 075°. What will be your course made good if you steer 082°T at 8 knots?
Y a. 081°T N b. 083°T N c. 085°T N d. 087°T 16566: If you were to head into New London Harbor, which chart should you switch to for the best detail?
N a. 13209 N b. 13212 Y c. 13213 N d. 13214 16718: At 0705, you change course to head for The Race. You wish to leave Race Rock Light bearing due north at 0.4 mile. If the current is 100°T, at 2.8 knots, and you are turning for 12.0 knots, what course (pgc) should you steer?
N a. 250°pgc N b. 255°pgc Y c. 263°pgc N d. 267°pgc