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.
81: Which company does NOT have a marine facility along the river bank in Helena (mile 658 to 665 AHP)?
N a. Riceland Food Corps.. N b. Helena Marine Services, Inc. Y c. Helena Grain Co. N d. Texas Eastern Pipeline Co. 201: What course should you steer by your standard magnetic compass to make good a course of 280°T?
Y a. 294°psc N b. 290°psc N c. 272°psc N d. 266°psc 226: 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 __________.
N a. 020°T N b. 014°T N c. 006°T Y d. 359°T 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 400: Your vessel receives a distress call from a vessel reporting her position at LAT 5°24'N, LONG 31°16'W. Your position is LAT 2°39'S, LONG 39°24'W. Determine the distance from your vessel to the vessel in distress by Mercator sailing.
N a. 669.3 miles Y b. 688.7 miles N c. 699.2 miles N d. 712.9 miles 429: At 0820, you take the following bearings:
Falkner Island Light bearing 052°true
Branford Reef Light bearing 307°true
What are the set and drift since 0730?
N a. Set 052°T, drift 1.1 knots N b. Set 052°T, drift 1.3 knots Y c. Set 232°T, drift 1.3 knot N d. Set 232°T, drift 1.1 knots 530: You observe the planet Jupiter at a sextant altitude (hs) of 66°27.6' on 26 May . The index error is 5.2' on the arc. The height of eye is 52 feet. What is the observed altitude (Ho)?
N a. 65°39.5' N b. 65°32.8' N c. 66°27.2' Y d. 66°15.0' 548: You are bound for New London. Where will you cross the demarcation line and be governed by the Inland Rules of the Road?
N a. You are already governed by the Inland Rules. N b. Above the Thames River Bridge Y c. In the Race N d. You will not be governed by the Rules. 555: Your 0507 position is about 7 miles from Bridgeport, CT. What is the distance from this position to Newport, RI?
N a. 114 miles N b. 101 miles N c. 95 miles Y d. 88 miles 575: What is the course per standard magnetic compass on the southern leg of York Spit Channel between buoys "15" and "23"?
N a. 341° Y b. 339° N c. 322° N d. 319° 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 807: On 12 February your 0542 zone time (ZT) fix gives you a position of LAT 26°42.0'N, LONG 60°18.0'W. Your vessel is on course 300°T, and your speed is 9.8 knots. Local apparent noon (LAN) occurs at 1220 ZT at which time a meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 49°10.0'. What is the calculated latitude at LAN?
N a. 27°13.5'N Y b. 27°16.3'N N c. 27°17.6'N N d. 27°19.2'N 976: On 7 November , your 0830 zone time position was LAT 27°36.0'N, LONG 162°19.0'W. Your vessel was steaming on course 289°T at a speed of 19.0 knots. An observation of the Sun's lower limb was made at 0945 ZT. The chronometer read 08h 43m 11s and was slow 01m 51s. The observed altitude (Ho) was 38°21.1'. Local Apparent Noon (LAN) occurred at 1138 zone time. The observed altitude (Ho) was 45°35.0'. What was the longitude of your 1200 zone time running fix?
Y a. 163°38.8'W N b. 163°34.0'W N c. 163°30.2'W N d. 163°26.0'W 1007: On 30 July , your 1030 ZT DR position is LAT 17°46'N, LONG 139°30'W. You are on course 129°T, speed 24 knots. Determine your 1200 position using the following observations of the Sun.
ZONE TIME GHA DECLINATION Ho
1220 138°25.0' N 18°22.3' 88°43.3'
1226 139°55.0' N 18°22.2' 88°24.0'
N a. LAT 17°24.0'N, LONG 138°59.8'W N b. LAT 17°21.6'N, LONG 138°56.2'W N c. LAT 17°18.7'N, LONG 139°07.6'W Y d. LAT 17°15.1'N, LONG 139°00.0'W 1021: On 30 March , your 0145 DR position is LAT 29°30'S, LONG 122°45'E. You are on course 055°T at a speed of 22 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0600 running fix.
N a. LAT 28°24.6'S, LONG 124°21.4'E Y b. LAT 28°39.9'S, LONG 124°18.6'E N c. LAT 28°41.5'S, LONG 124°41.5'E N d. LAT 29°20.1'S, LONG 123°41.0'E 1097: On 9 November , your 0400 DR position is LAT 18°24.0'S, LONG 97°36.0'W. You are on course 138°T at a speed of 16 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0600 running fix. NP-0027
N a. LAT 18°15.0'S, LONG 98°52.5'W Y b. LAT 18°45.0'S, LONG 97°06.8'W N c. LAT 18°52.5'S, LONG 97°10.6'W N d. LAT 19°15.5'S, LONG 98°08.8'W 1120: At 0850, 4 January, you pass the Gage at Natchez, MS which reads 26.8 feet. The low water reference plane (LWRP) for Natchez is 6.1 feet. What is the water level in relation to the low water reference plane?
Y a. 20.7 ft above N b. 20.7 ft below N c. 32.9 ft above N d. 32.9 ft below 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 1179: On 26 September , your 0830 zone time DR position is LAT 26°04.0'N, LONG 129°16.0'W. Your vessel is on course 119°T at a speed of 20.0 knots. What is the zone time of local apparent noon (LAN)?
Y a. 1124 N b. 1127 N c. 1130 N d. 1133 1467: On 17 April , your 1610 ZT DR position is LAT 22°07.0'N, LONG 158°16.0'W. At that time, you observe the Sun bearing 271°psc. The chronometer reads 03h 08m 52s, and the chronometer error is 01m 16s slow. The variation is 4°E. What is the deviation of the standard magnetic compass?
N a. 1.1°W N b. 1.7°E Y c. 2.3°W N d. 2.9°E 1651: On 23 October , in DR position LAT 21°13.0'N, LONG 152°18.0'E, you observe an amplitude of the Sun. The Sun's center is on the visible horizon and bears 259°psc. The chronometer reads 07h 21m 46s and is 01m 32s slow. Variation in the area is 5°E. What is the deviation of the magnetic compass?
N a. 0.9°E N b. 1.5°W Y c. 5.9°W N d. 6.5°E 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 1770: What are the light characteriditcs of the Bunge Corporation Terminal Lights (2) at mile 570.6 AHP?
N a. a group flashing white light every five seconds N b. a flashing green light every 4 seconds Y c. a flashing green light every 6 seconds N d. a flashing red light every 4 seconds 1842: What town is located at mile 389.8 AHP?
N a. Whitehall N b. Belmont N c. St. James Y d. Rodney 1868: On 12 June , your 1945 DR position is LAT 21°47.0'N, LONG 46°52.0'W when you observe a faint unidentifiable star through a break in the clouds. The star bears 130°T at a sextant altitude (hs) of 45°21.2'. The index error is 0.5' on the arc, and the height of eye is 45 feet. The chronometer reads 10h 43m 27s, and the chronometer error is 1m 46s slow. What star did you observe?
N a. Theta Carinae N b. Epsilon Leonis Y c. Beta Librae N d. Zeta Puppis 1875: 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 68°03.6' bearing 154°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?
Y a. Alpha Indi N b. Epsilon Cygni N c. Gamma Aquilae N d. Albireo 2056: What are the color and shape of Togo Island daymark at mile 415.0 AHP?
Y a. Green - Square N b. Green - Diamond N c. Red - Triangle N d. Red - Square 2247: At 1845 zone time, on 17 March , while taking stars for an evening fix, you observe an unidentified star bearing 200°T at an observed altitude of 53°45.0'. Your DR position at the time of the sight is LAT 25°10.0'N, LONG 66°48.0'W. The chronometer time of the sight is 10h 47m 49s, and the chronometer error is 1m 54s fast. Your vessel is steaming on a course of 290°T at a speed of 18.0 knots. What star did you observe?
N a. Altair N b. Mirfak N c. Pollux Y d. Rigel 2463: You have steamed 491 miles at 20 knots and burning 568 barrels of fuel per day. You must decrease your consumption to 265 barrels per day with 313 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?
N a. 10.9 N b. 14.3 Y c. 17.1 N d. 18.2 2891: You are steaming on course 168°T at a speed of 18 knots. At 1426 you sight a buoy bearing 144°T. At 1435 you sight the same buoy bearing 116°T. What is your distance off at the second bearing and predicted distance when abeam?
Y a. 2.3 miles 2nd bearing, 1.8 miles abeam N b. 2.5 miles 2nd bearing, 2.8 miles abeam N c. 2.8 miles 2nd bearing, 1.8 miles abeam N d. 3.3 miles 2nd bearing, 2.8 miles abeam 3052: The propeller on a vessel has a diameter of 21.2 feet and a pitch of 20.0 feet. What would be the apparent slip if the vessel cruised 391 miles in a 24 hour day (observed distance) at an average RPM of 88?
N a. -11.5% N b. +11.5% N c. -6.2% Y d. +6.2% 3085: You must average 16.25 knots to reach port at a designated time. Your propeller has a pitch of 21'08", and you estimate 4% negative slip. How many RPM's must you average to arrive on time?
Y a. 73 RPM N b. 77 RPM N c. 82 RPM N d. 88 RPM 3609: Enroute from Rio to Montevideo, the true course is 215°; the gyro error is 2° west. A north wind causes 3° leeway. What course would you steer per gyrocompass to make good the true course?
Y a. 220°pgc N b. 214°pgc N c. 216°pgc N d. 210°pgc 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 3752: While your vessel is proceeding down a channel you notice a range of lights in line with your vessel's mast. If your vessel is on course 001° per gyro compass and the charted value of the range of lights is 359°T, what is the gyro compass error?
Y a. 2°W N b. 2°E N c. 1°E N d. 1°W 10708: At 0726 you depart Lake Montauk with light 1 close aboard and set course 309° per standard magnetic compass at 6.7 knots. At 0818 your GPS position is LAT 41°07.1'N, LONG 72°02.6'W. What is the current?
Y a. 102°T at 0.6 knot N b. 164°T at 0.7 knot N c. 334°T at 0.9 knot N d. 321°T at 0.6 knot 11107: What is the time (Daylight Savings Time) of the first high tide on 1 July 1983 at Great Salt Pond on Block Island?
Y a. 0027 N b. 0448 N c. 1158 N d. 1203 11505: At 1014 you depart the entrance to Lake Montauk with light "1" close aboard. Your course is 066° per standard magnetic compass, and the speed is 8.6 knots. At 1230 your position is LAT 41°20.0'N, LONG 71°40.0'W. What is the speed made good?
N a. 8.0 knots N b. 8.3 knots Y c. 8.6 knots N d. 8.9 knots 14500: Your vessel is at mile 170 on the Columbia River. You are proceeding in a westerly direction and are approaching the lift bridge at Hood River. The pool level of the Bonneville reservoir stands at 92 feet above MSL. If the highest point on your vessel is 52 feet above the water, which of the following statements is TRUE?
N a. You may pass under the lift bridge, in the "down" position with a vertical clearance of 15 feet. N b. You may pass under the lift bridge in the "up" position with a clearance of 96 feet. N c. You may pass under the lift bridge, in the "down" position with a vertical clearance of 25 feet. Y d. You may pass under the lift bridge, in the "up" position with a vertical clearance of 76 feet. 15040: At about what time will you see Chesapeake Light if visibility is exceptionally clear?
Y a. 0729 N b. 0733 N c. 0738 N d. 0742 15058: At 0740, you obtain the following radar data:
Branford Reef Light bears 248° true @ 3.0 nm
What is your position?
N a. LAT 41°12.0'N, LONG 72°51.3'W N b. LAT 41°12.0'N, LONG 72°51.8'W N c. LAT 41°12.1'N, LONG 72°51.5'W Y d. LAT 41°12.1'N, LONG 72°52.0'W 15115: If the visibility is 11 miles, what is the luminous range of New Point Comfort Spit Light "4"?
N a. 0.5 mile N b. 3.8 miles N c. 4.3 miles Y d. 5.0 miles 15246: From your 1845 position, you desire to leave Stratford Shoal Middle Ground Light 1.0 mile off your starboard beam at 1900. Which course and speed would you order if you allow for a 2.0 knot current with a set of 180°T?
N a. 205°T at 9.2 knots N b. 208°T at 11.4 knots Y c. 215°T at 9.2 knots N d. 225°T at 11.5 knots 15441: At buoy "CB" you change course to follow the inbound
traffic lane. What is the course to steer per gyro compass if you correct your heading for a current of 315° at 1.0 knot and allow 3° leeway for northeasterly winds?
N a. 297°pgc N b. 299°pgc Y c. 302°pgc N d. 305°pgc 15546: At 2350 the gyro is restored to service. At 0016 the visibility improves. At 0028 you sight Bartlett Reef Light in line with New London Harbor Light bearing 039°pgc. What is the gyro error?
Y a. 2°E N b. 0° N c. 2°W N d. 4°W 16214: From your 0715 position, you set a course of 085°T. At 0745 you take the following bearings:
Race Rock Light 278°pgc
Watch Hill Light 049°pgc
Fisher's Island East Harbor Cupola 010°pgc
What was the current encountered between 0715 and 0745?
N a. Set 030°T, drift 0.4 knot N b. Set 216°T, drift 0.3 knot Y c. Set 070°T, drift 0.6 knot N d. Set 238°T, drift 1.0 knot 16367: Weather broadcasts for the Norfolk area are broadcast on what frequency?
N a. 162.25 MHz N b. 162.30 MHz Y c. 162.55 MHz N d. 162.65 MHz 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 16463: The visibility is about 5 miles. Which statement about Cape Charles Light is TRUE?
N a. The light has been visible since you departed the anchorage. N b. You will not see the light until you are within 5 miles of the light. Y c. The light will become visible about 0400. N d. The light will not be visible until you enter the inbound leg of the traffic separation scheme. 16465: At 0600, you are entering the inbound leg of the traffic separation scheme at position LAT 36°59.2'N, LONG 75°47.6'
W. Course is 250°T. At 0605, Cape Henry Light bears 249°
T. At 0610, it bears 248°T. At 0625, it bears 247°T. Based on this, you know you are __________.
N a. meeting a current from dead ahead N b. running with a current from dead ahead Y c. being set to the north N d. being set to the south :
N a. N b. N c. N d.