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.
58: What daymark will you see as you approach Warnicott Bar Lt. (mile 351.3 AHP)?
N a. Red diamond N b. Red triangle N c. White square Y d. Green square 66: At 2126, you pass Morganza Bend Light (mile 278.4 AHP). At 0122, 4 January, you pass Red River Landing Gage (302.4 AHP). You have been turning for 7.5 mph. What is the current?
N a. 6.2 mph N b. 2.7 mph N c. 1.8 mph Y d. 1.4 mph 179: In order to check your compasses, you sight North Dumpling Island Light in line with Latimer Reef Light bearing 077°pgc. The helmsman was steering 307°pgc and 320° per standard magnetic compass at the time. Which statement is TRUE?
N a. The gyro error by observation is 2°E. N b. The deviation based on the observation is 15°W. Y c. The magnetic compass error is 14°W. N d. The true line of the range is 079°. 215: As an option to heading into Long Island Sound, you consider anchoring in the vicinity of the Gardiners Point Ruins at the north end of Gardiners Island. What is the minimum recommended distance from the ruins for fishing, trawling, or anchoring?
N a. 1.0 mile N b. 0.8 mile N c. 0.5 mile Y d. 300 yards (91 meters) 316: From your 1830 fix, you continue south on a course of 150°T turning RPMs for 6 knots. You encounter a flood current in the direction of 330°T at 2 knots. Adjusting your course for set and drift, which course would you steer to make good a course of 150°T while turning RPMs for 6 knots?
N a. 162°T N b. 158°T Y c. 150°T N d. 144°T 327: At 0315, you obtain the following bearings:
Wolf Trap Light bearing 091° true
Old Plantation Flats Light bearing 179° true
What is the true course from this position to the entrance of York Spit Channel?
N a. 217° N b. 211° Y c. 208° N d. 203° 378: A vessel at LAT 37°24.0'N, LONG 178°15.0'W, heads for a destination at LAT 34°18.0'N, LONG 178°25.0°E. Determine the true course and distance by Mercator sailing.
N a. 041°T, 273.9 miles N b. 047°T, 273.9 miles Y c. 221°T, 247.2 miles N d. 227°T, 247.2 miles 425: 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?
N a. 67 feet (20.3 meters) N b. 62 feet (18.8 meters) N c. 57 feet (17.3 meters) Y d. 52 feet (15.8 meters) 427: Assuming no current, at what time can you expect to be abeam of Townshend Ledge Lighted Buoy?
Y a. 0910 N b. 0905 N c. 0902 N d. 0859 448: At 2100, you set course of 000°T, speed 10 knots from LAT 41°07.0'N, LONG 71°30.0'W. Visibility is 5.5 n.m. What is the earliest time you can expect to sight Point Judith Light? (Use charted range of 20 miles as nominal range.)
N a. The light is visible at 2100. N b. 2106 Y c. 2111 N d. 2123 496: At 0815, you change course to 079°T and head for the entrance of Great Salt Pond on Block Island. To compensate for a northerly wind, you estimate a 5° leeway is necessary. What course should you steer per gyrocompass to make good 079°T?
Y a. 071°pgc N b. 074°pgc N c. 076°pgc N d. 079°pgc 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 675: You are planning a voyage from Godthab, Greenland, to Cayenne, French Guiana. Using chart WOXZC 5274, determine which statement is TRUE.
N a. Godthab is located at the Northern Hemisphere vertex. Y b. The rhumb line track approximates a great circle track. N c. A great circle track will be considerably shorter due to the length of the voyage. N d. Distance is measured by using the length of meridian at the point of tangency. 736: On 6 March , your 1854 zone time DR position is LAT 23°51.5'N, LONG 73°14.0'W. At that time you observe Polaris with a sextant altitude (hs) of 24°16.5'. The chronometer time of the sight is 11h 52m 40s, and the chronometer error is 01m 56s slow. The index error is 5.0' on the arc, and the height of eye is 43.5 feet (13.3 meters.) What is your latitude by Polaris?
N a. 23°29.5'N Y b. 23°36.3'N N c. 23°49.9'N N d. 24°02.9'N 1089: At 1830 zone time, on 6 April , your DR position is LAT 26°33.0'N, LONG 64°31.0'W. You are steering course 082°T at a speed of 16.0 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 1900 running fix. NP-0019
N a. LAT 26°20.1'N, LONG 64°19.4'W N b. LAT 26°23.7'N, LONG 64°29.3'W N c. LAT 26°28.4'N, LONG 64°32.1'W Y d. LAT 26°32.5'N, LONG 64°27.1'W 1236: Which facility is located on the right descending bank at mile 363.6 AHP?
N a. River Cement Corps.. N b. Bunge Corps.. N c. T.L. James Y d. Vidalia Dock and Storage Co. 1266: On 1 December , your 1600 ZT DR position is LAT 22°48.0'S, LONG 91°26.0'E. You are on course 327°T at a speed of 16 knots. What will be the zone time of sunset at your vessel?
N a. 1823 Y b. 1827 N c. 1831 N d. 1847 1281: On 2 January , you are on a course of 094°T at a speed of 20 knots. At 0430 ZT, your DR position is LAT 24°12'N, LONG 71°24'W. Determine the zone time of sunrise.
Y a. 0627 N b. 0636 N c. 0644 N d. 0701 1286: As you pass under the Vicksburg Bridges, you estimate the current as 3.0 mph. What is the speed over the ground, if your vessel is making turns for 10.5 mph?
N a. 16.5 mph Y b. 13.5 mph N c. 10.5 mph N d. 7.5 mph 1642: From your 2129 position you reduce engine speed to 14 knots. What is the course to make good from your 2129 position to arrive 0.3 mile north of Lighted Whistle Buoy "NCA" (LL#375) assuming no set and drift?
N a. 216°T N b. 219°T Y c. 222°T N d. 225°T 1772: What is your ETA at the Fulton Gage?
N a. 1405, 12 Sept N b. 1052, 12 Sept N c. 0828, 12 Sept Y d. 0204, 12 Sept 1777: At 2232 ZT, on 14 July , in DR position LAT 33°52'S, LONG 150°03'W you observe an amplitude of Jupiter. The planet is about one Sun's diameter above the visible horizon and bears 268.5°pgc. The variation is 15°E. What is the gyro error?
Y a. 1.0°E N b. 0.5°E N c. 0.0° N d. 0.5°W 1805: What is the vertical clearance between the highest point of your towboat, if it is 48 feet above the water, and if the Natchez Gage reads 20.1 feet when passing under the Natchez Upper Highway Bridge?
N a. 35.9 feet N b. 43.2 feet N c. 49.3 feet Y d. 57.9 feet 1833: What are the dimensions of the Port Allen Lock at Baton Rouge, LA?
N a. 75 feet x 1188 feet N b. 84 feet x 1180feet Y c. 84 feet x 1188 feet N d. 75 feet x 1180 feet 1867: 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 162°T at a sextant altitude (hs) of 28°36.5'. 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?
N a. Gamma Virginis Y b. Iota Centauri N c. Spica N d. Mimosa 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 1953: You are downbound when you observe on your Mississippi River map a circel with black and white quadrants on the left bank. This indicates a __________.
Y a. river gage N b. daymark N c. control tower N d. information board 2244: At 1435 ZT, on 27 April , in DR position LAT 51° 56.8' N, LONG 150° 37.7' E, the Moon’s upper limb is observed on the visible horizon, bearing 242.2° psc. Variation is 2° W. What is the deviation?
Y a. 2.2°W N b. 2.2°E N c. 6.2°E N d. 6.2°W 2455: You are underway and intend to make good a course of 170°T. You experience a current with a set and drift of 050°T at 2.8 knots, and a easterly wind produces a leeway of 3°. You adjust your course to compensate for the current and leeway, while maintaining an engine speed of 18.5 knots. What will be your speed made good over your intended course of 170°T?
N a. 18.5 knots N b. 18.1 knots N c. 17.6 knots Y d. 17.2 knots 2588: At 2130 New Haven buoy "NH" bears 337° per gyro compass and Middle Ground Lt bears 254° per gyro compass. You must arrive 0.3 miles off Port Jefferson buoy "PJ" at 2300. What speed will you have to make good, for arrival at 2300?
N a. 9.0 knots Y b. 9.3 knots N c. 9.6 knots N d. 10.7 knots 2681: Your vessel is on course 312°pgc and you sight a lighthouse dead ahead at a range of 10 miles. The gyro error is 3°E. What course would you steer to leave the lighthouse 1.5 miles abeam to starboard?
N a. 309°pgc Y b. 304°pgc N c. 309°T N d. 304°T 2783: Which daymark would you see as you approach Red Store Light (mile 269.5 AHP)?
Y a. Green square N b. Green triangle N c. Green diamond N d. Red square 2910: Your vessel is steaming on a course of 140°T at 15 knots. At 1530 a lighthouse bears 200°T. At 1550 it bears 249°T. What is your distance from the lighthouse at 1550?
N a. 1.15 miles N b. 4.60 miles N c. 5.45 miles Y d. 5.75 miles 3101: You are turning 100 RPM, with a propeller pitch of 25 feet, and an estimated slip of -5%. What is the speed of advance?
N a. 24.7 knots N b. 23.5 knots Y c. 25.9 knots N d. 22.3 knots 3309: You have steamed 142 miles and consumed 15.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 472 miles?
N a. 36.5 tons Y b. 49.9 tons N c. 53.8 tons N d. 61.4 tons 3604: You wish to make good a course of 258°T, allowing 4° leeway for northerly winds. The variation is 21°W. What should you steer per standard magnetic compass to make good 258°T?
DEVIATION TABLE
MAGNETIC HDG DEVIATION
285° 5°E
270° 3°E
255° 1°E
240° 1°W
N a. 242°psc N b. 271°psc Y c. 278°psc N d. 288°psc 3617: Your vessel is steering course 299°psc, variation for the area is 7°W, and deviation is 4°W. The wind is from the southwest, producing a 3° leeway. What true course are you making good?
Y a. 291°T N b. 296°T N c. 299°T N d. 313°T 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 4011: You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2°E. The variation is 8°W. Find the deviation on a magnetic compass heading of 234°.
HEADING HEADING HEADING
PSC PGC PSC PGC PSC PGC
358.5° - 350° 122.5° - 110° 239.5° - 230°
030.5° - 020° 152.0° - 140° 269.0° - 260°
061.5° - 050° 181.0° - 170° 298.0° - 290°
092.0° - 080° 210.0° - 200° 327.5° - 320°
N a. 2.5°W N b. 2.5°E N c. 1.0°W Y d. 0.5°E 4016: 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 004°.
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. 1.5°W N b. 0.5°W N c. 0.0° Y d. 1.0°E 11305: At 1919 your position is LAT 37°00.0'N, LONG 75°30.0'W. At 2000 your position is LAT 36°59.5'N, LONG 75°37.0'W. What was the speed made good?
N a. 5.6 knots N b. 6.6 knots Y c. 8.2 knots N d. 9.1 knots 11909: Your position is 3 miles due east of Montauk Point Light. What is the true course to steer to arrive one mile due south of Block Island Southeast Point Light, if you are turning for 6.8 knots, the current is 330° at 1.2 knots, and a southerly wind causes 3° of leeway?
N a. 081°T Y b. 084°T N c. 087°T N d. 090°T 12611: You are on course 262° per standard magnetic compass when you take the following bearings: Saybrook Breakwater Light - 338.5°psc Little Gull Island Light - 107.5°psc Horton Point Light - 240.0°psc What is your position?
N a. LAT 41°11.9'N, LONG 72°16.7'N Y b. LAT 41°12.6'N, LONG 72°17.2'W N c. LAT 41°13.0'N, LONG 72°17.7'W N d. LAT 41°12.1'N, LONG 72°17.3'W 13701: Why are there no buoys charted at the approach to Sand Shoal Inlet (LAT 37°16'N, LONG 75°46'W)?
N a. No buoys are stationed there. N b. They frequently shift position due to heavy weather. Y c. They are frequently shifted to conform to the changing channel. N d. The buoys are being replaced with fixed lights. 14404: You are underway and proceeding in an easterly direction on the Columbia River. You position your vessel in the middle of the channel and bring Government Island Lower Range in line over your bow. What should your fathometer read at this position, if the staff gauge at Portland reads 10.0 feet?
Y a. 15 feet N b. 24 feet N c. 28 feet N d. 31 feet 14701: How many nautical miles are between mile 44 and mile 163 on the Columbia River?
N a. 98.6 Y b. 103.4 N c. 119.5 N d. 136.9 15143: From your 2146 position, with a new engine speed of 12 knots, you wish to change course in order to pass southeast of Buoy "MP" at a distance of 2 miles. With a reported set of 320° true and a drift of 2 knots, which course should you steer to make good your desired course?
N a. 055°true Y b. 061°true N c. 066° true N d. 071°true 15365: Which loran line can you follow to remain clear of all danger until south of New London?
N a. 9960-W-15000 N b. 9960-W-14900 N c. 9960-X-26450 Y d. 9960-Y-43960 15406: At 1400, your position is LAT 37°14.7'N, LONG 76°22.3'W. From this position, you head for the York River Entrance Channel Buoy "17". What should you steer per standard magnetic compass for this heading?
N a. 108°psc N b. 119°psc N c. 122°psc Y d. 125°psc 15756: You are steering 087°pgc and turning for 6.8 knots. At 0600, you take the following bearings:
Little Gull Island Light bearing 085.5°pgc
Bartlett Reef Light bearing 043°pgc
What is your 0600 position?
Y a. LAT 41°12.1'N, LONG 72°13.8'W N b. LAT 41°12.1'N, LONG 72°14.6'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 15860: At 0100, your position is LAT 41°05.3 N, LONG 72°29.2 W. You head for the position one mile north of Mattituck Inlet Light and turn to make good 9.0 knots. If the visibility is about 2 miles, at what approximate time will you sight the light?
N a. The light is visible at 0100 N b. 0109 Y c. 0120 N d. 0128 16060: The short-long dashed, magenta lines parallel to York River Entrance Channel mark __________.
Y a. fish trap areas N b. naval exercise areas N c. underwater cables N d. recommended track lines 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 16638: At 0400 your position is:
Latitude 40° 50.2' North
Longitude 071° 36.2' West
From your 0400 fix, you steer a course to make good 347°T at 12.5 knots. Visibility is good. What is the earliest time you can expect to raise Montauk Point Light? (Nominal range - 24 miles, height above water - 168 feet)
Y a. The light is visible at 0400. N b. 0426 N c. 0435 N d. 0442 16641: At 0455 you encounter fog and slow to 5 knots. At 0500, you obtain a radar fix from the following information:
Radar range to Montauk Point is 9.1 miles.
Tangent bearing to western edge of Block Is. Is 015°pgc.
Distance off the nearest part of Block Is. is 5.9 miles.
What is your 0500 position?
N a. LAT 41°02.8'N, LONG 71°39.5'W N b. LAT 41°02.9'N, LONG 71°39.8'W N c. LAT 41°03.1'N, LONG 71°39.6'W Y d. LAT 41°03.5'N, LONG 71°39.3'W :
N a. N b. N c. N d.