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.
67: The Gage at Red River Landing reads 22.2 feet. The LWRP for Red River is 10.6 feet. What is the water level in relation to the low water reference plane?
N a. 32.8 ft below N b. 32.8 ft above N c. 11.6 ft below Y d. 11.6 ft above 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 102: The latest available information on the channel conditions above Baton Rouge that includes recommended course and the latest buoy information is found in the __________.
Y a. Local Notice to Mariners N b. Waterways Journal N c. Sailing Directions N d. Corps. of Engineers maps 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 208: From your 1850 fix, you come left to a course of 280°T,
while maintaining a speed of 10 knots. Which of the following combinations of available Loran-C lines would be best for position determination?
N a. 9960-X and 9960-Y Y b. 9960-Y and 9960-W N c. 9960-W and 9960-X N d. All are equally good. 324: The mean high water level at Old Point Comfort is __________.
N a. 3.3 feet (1.1 meters) Y b. 2.6 feet (0.8 meters) N c. 1.2 feet (0.4 meters) N d. 0.0 397: Your vessel departs LAT 32°45'N, LONG 79°50'W, and is bound for LAT 34°21'S, LONG 18°29'E. Determine the distance by Mercator sailing.
N a. 5,021 miles Y b. 6,884 miles N c. 6,954 miles N d. 7,002 miles 452: Determine the great circle distance and initial course from LAT 35°17.6'N, LONG 144°23.0'E to LAT 47°36.0'N, LONG 124°22.0'W.
N a. 3946 miles, 312°T Y b. 3931 miles, 048°T N c. 3881 miles, 042°T N d. 3718 miles, 318°T 627: You are on a voyage from Halifax, Nova Scotia, to Galveston, TX. The distance is 2138 miles, and the speed of advance is 12.5 knots. You estimate 18.0 hours for bunkering enroute at Port Everglades, FL. If you sail at 0648 hours (ZD +4), 12 June, what is your ETA (ZD +5) at Galveston?
Y a. 0250, 20 June N b. 0350, 20 June N c. 0550, 20 June N d. 1350, 20 June 666: You are on a voyage via position LAT 44°00'N, LONG 150°00'E to LAT 46°15'N, LONG 124°00'W. Using gnomonic chart WOXZC 5270, determine which statement is TRUE?
Y a. A composite sailing with a limiting latitude of 51°N will clear the Aleutian Islands. N b. The northern hemisphere vertex is east of the arrival position. N c. The Aleutian Islands are not a navigational hazard on the direct great circle track. N d. The final course angle lies in the northeast quadrant. 668: A great circle track would be most advantageous when compared to the rhumb line track on which route? (Use gnomonic tracking chart WOXZC5274)
N a. Cayenne (LAT 4°40'N, LONG 52°15'W) to Sao Tome (LAT 0°00', LONG 6°45'E) Y b. Palm Beach, FL, to the English Channel N c. Natal, Brazil, to Reykjavik, Iceland N d. Recife, Brazil, to Monrovia 701: At 1118, on 24 May, you pass Natchez Gage and estimate the current will average 3.0 mph for the remainder of the time on the Mississippi River. What is your ETA at Cairo, IL if you continue to turn for 10 mph?
N a. 0840, 26 May N b. 2218, 26 May N c. 2218, 27 May Y d. 2339, 27 May 727: On 11 February , your 1832 zone time DR position is LONG 110°52.6'W. At that time you observe Polaris with a sextant altitude (hs) of 26°19.8'. The chronometer time of the sight is 01h 34m 56s, and the chronometer error is 02m 16s fast. The index error is 2.7' off the arc, and the height of eye is 60.2 feet. What is your latitude by Polaris?
Y a. 25°27.2'N N b. 25°34.2'N N c. 26°27.2'N N d. 26°34.2'N 826: On 5 May , in DR position LAT 38°34.5'N, LONG 124°20.7'W, you take an ex-meridian observation of the Sun's lower limb. The chronometer time of the sight is 07h 59m 10s, and the chronometer error is 01m 10s slow. The sextant altitude (hs) is 67°27.0'. The index error is 1.4' on the arc, and your height of eye is 30 feet. What is the latitude at meridian transit?
N a. LAT 38°26.4'N N b. LAT 38°30.2'N Y c. LAT 38°36.0'N N d. LAT 38°41.2'N 1009: On 22 February , your 0800 zone time position is LAT 24°16'S, LONG 95°37'E. Your vessel is on course 126°T at a speed of 14 knots. An observation of the Sun's lower limb is made at 0945 zone time. The chronometer reads 03h 47m 22s, and the chronometer error is 02m 37s fast. The observed altitude (Ho) is 57°02.1'. LAN occurs at 1148 zone time, and a meridian altitude of the Sun's lower limb is made. The observed meridian altitude (Ho) is 75°22.3'.
Determine the vessel's 1200 zone time position.
N a. LAT 24°49.3'S, LONG 96°24.0'E N b. LAT 24°49.3'S, LONG 96°27.2'E Y c. LAT 24°52.2'S, LONG 96°24.0'E N d. LAT 24°52.2'S, LONG 96°27.2'E 1184: On 8 April , your 0830 zone time DR position is LAT 22°49.0'N, LONG 84°37.0'W. Your vessel is on course 228°
T at a speed of 19.0 knots. What is the zone time of local apparent noon (LAN)?
Y a. 1144 N b. 1147 N c. 1150 N d. 1154 1202: Your 0830 DR position is LAT 27°33'S, LONG 79°17'E. Your vessel is on a course of 066°T, at a speed of 19.5 knots. Determine the time of LAN on 10 December .
Y a. 1131 N b. 1136 N c. 1153 N d. 1215 1262: On 27 September , your 0345 ZT DR position is LAT 26°18.0'S, LONG 4°18.0'W. You are on course 271°T at a speed of 15 knots. What will be the zone time of sunrise at your vessel?
N a. 0525 N b. 0545 N c. 0555 Y d. 0605 1364: 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. U.S.C.G. Light List N c. Army Corps. of Engineers Navigation Chart Y d. None of the above 1472: On 9 February , your 0739 zone time DR position is LAT 23°31.0'N, LONG 143°41.0'E. At that time, you observe the Sun bearing 104.5°psc. The chronometer reads 09h 37m 12s, and the chronometer error is 01m 52s slow. The variation is 3.5°W. What is the deviation of the standard magnetic compass?
N a. 1.6°E N b. 2.3°W N c. 5.1°W Y d. 8.6°E 1643: 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. 1690: The locations of locks and dams can be found in the __________.
N a. Army Corps. of Engineers maps Y b. Light List N c. Local Notice to Mariners N d. Channel Report 1910: On 22 February , your 1857 DR position is LAT 23°46.0'S, LONG 93°16.5'E. You observe an unidentified star bearing 126°T at an observed altitude (Ho) of 40°21.5'. The chronometer reads 01h 00m 35s and is 03m 25s fast. What star did you observe?
N a. Adhara N b. Miaplacidus N c. Avior Y d. Suhail 2014: On 16 October , evening twilight will occur at 1746 ZT, and your DR position will be LAT 28°43.2'N, LONG 60°29.8' W. Considering their magnitude and location, which of the following are the three best stars to select for a fix at star time?
Y a. Antares, Arcturus, Polaris N b. Deneb, Polaris, Vega N c. Antares, Deneb, Vega N d. Vega, Polaris, Enif 2086: Ar your current speed of 22 knots you only have enough fuel remaining to travel 440 miles. You must travel 618 miles to reach your destination. What should you reduce your speed (knots) to in order to reach your destination?
N a. 17.8 Y b. 18.6 N c. 19.4 N d. 20.2 2117: You must arrive at your final destination by 0800. The distance from your 0300 position to the final destination is 40.5 miles. What minimum speed must be made good to arrive on time?
Y a. 8.1 knots N b. 8.5 knots N c. 9.3 knots N d. 9.6 knots 2245: You are entering the channel at buoy 29 and turning for 9 knots. An easterly wind is causing 3°
of leeway and the current is 320°T at 1.2 knots. What true course should you steer to remain in the middle leg of York Spit Channel?
N a. 162°T Y b. 165°T N c. 168°T N d. 171°T 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 2675: At 1423 you are on course 072 T° at 12.2 knots, when you sight a rock awash bearing 070°T at a range of 3.6 miles. If you change course at 1427, what course would you steer to leave the rock 1.0 mile abeam to port?
N a. 049° N b. 054° N c. 086° Y d. 091° 2889: While underway you sight a light 11° on your port bow at a distance of 12 miles. Assuming you make good your course, what will be your distance off the light when abeam?
Y a. 2.3 miles N b. 3.1 miles N c. 3.9 miles N d. 4.5 miles 3608: You are steering 125°pgc. The wind is southwest by south causing a 3° leeway. The variation is 6°E, the deviation is 2°W, and the gyro error is 1°W. What is the true course made good?
Y a. 121°T N b. 123°T N c. 127°T N d. 129°T 3629: You desire to make good a true course of 129°. The variation is 7°E, magnetic compass deviation is 4°E, and gyrocompass error is 2°W. An easterly wind produces a 4° leeway. What is the course to steer per standard magnetic compass to make the true course good?
Y a. 114°psc N b. 116°psc N c. 122°psc N d. 126°psc 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 10208: Your GPS position is LAT 41°08.5'N, LONG 72°28.8'W. What course must you steer per standard magnetic compass (psc) to leave Cornfield Lighted Whistle Buoy "CF" 0.5 mile abeam to starboard?
N a. 032°psc N b. 048°psc N c. 055°psc Y d. 067°psc 10603: At 1300 your GPS position is LAT 41°09.2' N, LONG 72°36.9'W. You are steering course 291° per standard magnetic compass at a speed of 8 knots. At 1345 you fix your position by plotting several compass bearings on nearby known fixed objects. These result in a position of LAT 41°09.9'N, LONG 72°46.1'W. Which statement is TRUE with respect to the combined effects of wind and current experienced since 1300?
N a. There has been no set and drift. N b. Set and drift are westerly at approximately 0.9 knot. Y c. Your speed over the bottom is approximately 9.2 knots. N d. Set and drift are easterly at approximately 1.0 knot. 11302: At 1614 your GPS position is LAT 37°01.6'N, LONG 75°31.7'W. At 1703 your position is LAT 36°57.0'N, LONG 75°41.0'W. What was the course made good between the fixes?
Y a. 238°T N b. 242°T N c. 247°T N d. 250°T 13303: You are considering anchoring approximately three miles northeast of Chesapeake Light. After examining the chart you decide not to because of the __________.
N a. large number of wrecks N b. coral being designated as a special protected area Y c. danger of unexploded mines N d. area being designated as a National Marine Sanctuary 13410: You plan to anchor your vessel at LAT 41°05.1'N, LONG 72°59.3'W. Assuming that normal conditions exist, how much anchor cable should you put out?
N a. 150 to 300 feet N b. 300 to 440 feet Y c. 440 to 600 feet N d. 640 to 750 feet 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 15245: After departing the New Haven terminals, your 1800 position puts the New Haven Harbor Lighted Bell Buoy "NH" bearing 130°T at a range of 0.2 mile. From this position you set a course to leave Stratford Shoal Middle Ground Light 1.0 mile off your starboard beam. Your speed is 12.5 knots. At 1845 you determine your position to be LAT 41°05.5'N,
LONG 73°03.1'W. What were the set and drift of the current?
N a. 294°T at 0.5 knot Y b. 294°T at 0.8 knot N c. 114°T at 0.5 knot N d. 114°T at 0.8 knot 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 15366: At 0615 you change course to 078°T. If there is no current, when will Falkner Island Light be abeam?
N a. 0750 N b. 0743 N c. 0735 Y d. 0730 15611: From your 1815 position, you want to make good a course of 263°T. Your engines are turning RPM's for 12 knots. The current is 050°T at 1.9 knots. Adjusting your course for set and drift, at what time should you expect to enter the red sector of Cape Henry Light?
N a. 1849 N b. 1854 N c. 1859 Y d. 1904 15612: At 1920, Cape Henry Light bears 225°pgc, and Chesapeake Channel Tunnel North Light bears 288°pgc. If your heading is 268°T, what is the relative bearing of Chesapeake Light?
N a. 194° N b. 205° Y c. 213° N d. 220° 15612: At 1920, Cape Henry Light bears 225°pgc, and Chesapeake Channel Tunnel North Light bears 288°pgc. If your heading is 268°T, what is the relative bearing of Chesapeake Light?
N a. 194° N b. 205° Y c. 213° N d. 220° 16109: You are turning for 9 knots, a westerly wind is causing 3° of leeway, and the current is 320°T at 1.2 knots. What true course should you steer to remain in the northern leg of York Spit Channel?
N a. 191°T Y b. 194°T N c. 197°T N d. 203°T 16144: From your 2027 position you change course to 106°T, while maintaining an engine speed of 18 knots. Your ETA at a position where Block Island Sound South Entrance Obstruction Lighted Buoy "BIS" is abeam is __________.
N a. 2039 N b. 2043 N c. 2047 Y d. 2050 16414: At 1110, you increase speed to 12 knots. What is your ETA at the new position?
N a. 1157 N b. 1208 Y c. 1215 N d. 1219 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 16556: You are underway in the vicinity of Block Island and obtain the following lines of position:
Montauk Point Light 267°pgc
Block Island Southeast Light 030°pgc
Radar Bearing to Block Island
Southwest Point (tangent) 352°pgc
What is your position at the time of these sightings?
N a. LAT 41°05.2'N, LONG 71°36.2'W Y b. LAT 41°05.3'N, LONG 71°35.8'W N c. LAT 41°05.4'N, LONG 71°36.0'W N d. LAT 41°05.4'N, LONG 71°35.9'W 16612: At 0112, what is the approximate depth under the keel?
Y a. 38 feet (11.5 meters) N b. 47 feet (14.2 meters) N c. 51 feet (15.5 meters) N d. 57 feet (17.3 meters) 16616: At 0130, your position is LAT 41°09.3'N, LONG 72°46.9'W when you change course to 086°T. If you make good 086°T,
what is the closest point of approach to Twenty-Eight Foot Shoal Lighted Buoy?
N a. 0.7 mile Y b. 0.9 mile N c. 1.1 miles N d. 1.2 miles 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 16739: What is the earliest time you should sight Montauk Point Light (nominal range - 24 miles) if you are turning for 9.2 knots? Visibility is 5 nautical miles.
Y a. The light is visible at 2212 N b. 2221 N c. 2243 N d. You will not sight the light on this course. 16741: At 2346 Montauk Point Light bears 285°pgc, and the radar range to Montauk Point is 5.9 miles. You are steering to make good 034°T. In order to remain westward of Southwest Ledge you should __________.
Y a. come left when South East Point Light bears 057° true N b. remain on your present course and you will clear Southwest Ledge N c. keep Block Island North Light bearing 033°T or less N d. alter course to the right when Block Island Aerobeacon bears 055°T 16846: Your vessel's heading is 330°pgc and 345°psc with a 2°E gyro error. What is the deviation on this heading?
N a. 0° Y b. 3°W N c. 4°E N d. 7°W