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.
93: Which light characteristics does Quaker Oats Light (mile 952.6) have?
N a. 1 red flash every four seconds N b. 2 green flashes every 5 seconds N c. 2 red flashes every 4 seconds Y d. 2 red flashes every 5 seconds 167: The Arkansas City Yellow Bend revetment on the LMR extends from mile __________.
Y a. 555.5-549.7 RDB N b. 549.0-548.5 RDB N c. 556.9-554.9 LDB N d. 548.5-546.5 LDB 310: A vessel at LAT 28°20'N, LONG 16°00'W is to proceed to LAT 21°00'N, LONG 18°00'W. What is the course and distance by mid-latitude sailing?
Y a. 194.0°T, 453.0 miles N b. 195.2°T, 451.0 miles N c. 196.8°T, 450.0 miles N d. 197.3°T, 448.0 miles 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 386: 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 N c. Set 238°T, drift 0.9 knot Y d. Set 070°T, drift 0.6 knot 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 410: A vessel steams 666 miles on course 135°T from LAT 40°24.0'N, LONG 74°30.0'W. What is the latitude and longitude of the point of arrival by Mercator sailing?
N a. LAT 32°30.0'N, LONG 64°41.0'W Y b. LAT 32°33.0'N, LONG 64°46.0'W N c. LAT 32°36.0'N, LONG 64°49.0'W N d. LAT 32°39.0'N, LONG 64°53.0'W 580: At 1037, you are on course 010°T at 10 knots, when you take the following lset of bearings:
Old Plantation Flats Light bearing 123° pgc
New Point Comfort Light bearing 285.8° pgc
Wolf Trap Light bearing 338° pgc
What is your 1037 position?
N a. LAT 37°15.9'N, LONG 76°07.9'W N b. LAT 37°15.9'N, LONG 76°07.7'W Y c. LAT 37°16.1'N, LONG 76°07.4'W N d. LAT 37°16.3'N, LONG 76°07.2'W 679: Using gnomonic tracking chart WOXZC 5270, determine which of the following statements about a voyage from San Francisco to San Bernardino Strait (LAT 13°00'N, LONG 125°30'E) is TRUE.
N a. A composite sailing should be used to avoid the Bonin Islands. N b. Distance is measured using the length of a degree of longitude at the point of tangency. Y c. You will cross the Northern Hemisphere vertex at the approximate longitude of 159°W. N d. The entire track line is west of the Northern Hemisphere vertex. 680: On which voyage would a great circle track provide a significant savings in distance to steam, when compared to a rhumb line track? (Use gnomonic tracking chart WOXZC 5270.)
N a. Valdez, AK, to the Marquesas Islands (LAT 8°00'S, LONG 140°00'W) N b. San Francisco to Kodiak, AK N c. Christmas Island (LAT 2°00'N, LONG 157°30'W) to Singapore via LAT 3°00'N, LONG 126°00'E Y d. Guam (LAT 14°00'N, LONG 145°00'E) to Seattle via LAT 47°30'N, LONG 125°30'W 811: On 1 July , your 0515 ZT fix gives you a position of LAT 24°36.0'S, LONG 151°42.0'W. Your vessel is on course 300°T, and your speed is 10.0 knots. Local apparent noon (LAN) occurs at 1215 ZT, at which time a meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 42°55.0'. What is the calculated latitude at LAN?
N a. 24°03.6'S N b. 24°02.5'S Y c. 24°01.0'S N d. 24°00.0'S 812: On 28 July , your 0800 zone time (ZT) fix gives you a position of LAT 25°16.0'N, LONG 71°19.0'W. Your vessel is on course 026°T, and your speed is 17.5 knots. Local apparent noon (LAN) occurs at 1150 ZT, at which time a meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 82°28.7'. What is the latitude at 1200 ZT?
N a. 26°25.0'N Y b. 26°27.6'N N c. 26°29.8'N N d. 26°32.0'N 1178: On 27 August , your 0900 zone time DR position is LAT 24°25.0'N, LONG 94°20.0'W. Your vessel is on course 071°T at a speed of 20.0 knots. What is the zone time of local apparent noon (LAN)?
Y a. 1214 N b. 1208 N c. 1206 N d. 1158 1188: On 9 February , your 0830 zone time DR position is LAT 22°19.0'N, LONG 64°37.0'E. Your vessel is on course 128°
T at a speed of 19.0 knots. What is the zone time of local apparent noon (LAN)?
Y a. 1152 N b. 1156 N c. 1201 N d. 1205 1273: At 1544 zone time, on 5 October , your DR position is LAT 25°00'N, LONG 60°15'W. You are steering 270°T at a speed of 6.8 knots. What is the zone time of sunset?
N a. 1728 N b. 1737 N c. 1741 Y d. 1745 1280: On 27 March , your 0330 zone time DR position is LAT 23°32'N, LONG 154°47'E. Your vessel is on a course of 105°T at a speed of 20 knots. What will be the zone time of sunrise at your vessel?
Y a. 0534 N b. 0557 N c. 0612 N d. 0624 1424: You pass Springfield Bend Lt. (mile 244.8 AHP) at 1242, on 17 October, and estimate the current will average 2.5 mph for the remainder of your trip. What is your ETA at the mouth of the Ohio River if you are making turns for 10.5 mph?
N a. 1905, 19 October N b. 2122, 19 October Y c. 0519, 21 October N d. 0847, 21 October 1486: On 1 September , your 1115 zone time DR position is LAT 25°20.0'N, LONG 28°24.0'W. At that time, you observe the Sun bearing 160.5°psc. The chronometer reads 01h 14m 58s, and the chronometer error is 01m 17s fast. The variation is 13.5°W. What is the deviation of the standard compass?
Y a. 2.1°E N b. 4.1°E N c. 11.0°W N d. 11.0°E 1663: On 7 April , in DR position LAT 27°42.0'N, LONG 114°03.0'W, you observe an amplitude of the Sun. The Sun's center is on the celestial horizon and bears 076°psc. The chronometer reads 02h 10m 17s and is 01m 52s slow. Variation in the area is 8°E. What is the deviation of the standard magnetic compass?
Y a. 1.8°W N b. 2.3°E N c. 6.2°E N d. 7.8°W 2029: As you approach mile 659 AHP, you notice on the map a dashed line crossing the river at mile 659.9 AHP. This line indicates __________.
N a. ferry crossing N b. submarine crossing Y c. power lines N d. gas pipelines 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 2181: On 4 June , at 0630 ZT, morning stars were observed, and the vessel's position was determined to be LAT 26°15'S, LONG 121°20'W. Your vessel is steaming at 13.0 knots on a course of 246°T. A sextant observation of the Sun's lower limb is made at 0915 ZT. The chronometer reads 05h 14m 27s, and the sextant altitude is 25°57.8'. The index error is 2.1' off the arc, and the chronometer error is 0m 53s slow. Your height of eye is 39.0 feet. What is the intercept (a) and azimuth (Zn) of this sight using the assumed position method?
N a. Zn 044.6°, a 1.7' A Y b. Zn 044.6°, a 2.5' T N c. Zn 135.1°, a 1.7' A N d. Zn 135.1°, a 2.5' T 2206: What is the distance in river miles, from the new mouth of the White River to the RR and Hwy bridge at Baton Rouge, LA?
N a. 338 miles Y b. 365 miles N c. 400 miles N d. 454 miles 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 2283: You observe the lower limb of the Sun at a sextant altitude (hs) of 22°58.6' on 16 June . The index error is 2.0' off the arc. The height of eye is 61 feet. What is the observed altitude (Ho)?
Y a. 23°06.7' N b. 23°09.9' N c. 23°15.4' N d. 23°22.2' 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 2854: Your vessel is on a course of 221°T at 15 knots. At 0319 a light bears 198.5°T, and at 0353 the light bears 176°T.
At what time and at what distance off will your vessel be when abeam of the light?
N a. 0407, 4.3 miles N b. 0410, 5.2 miles Y c. 0417, 6.0 miles N d. 0427, 7.4 miles 2911: What is indicated by the two light gray shaded areas that cross the river above False River Lt. (mile 251.0 AHP)?
N a. Ferry crossings Y b. Utility crossings N c. Aerial cable crossings N d. Bridge construction 3051: The propeller on a vessel has a diameter of 20.6 feet and a pitch of 23.4 feet. What would be the apparent slip if the vessel cruised 538 miles in a 24 hour day (observed distance) at an average RPM of 87?
Y a. -11.6% N b. +11.6% N c. -10.3% N d. +10.3% 3295: Your vessel consumes 178 barrels of fuel per day at a speed of 13.5 knots. What will be the fuel consumption of your vessel at 15.0 knots?
N a. 172 bbls N b. 198 bbls N c. 219 bbls Y d. 244 bbls 4013: 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 gyro heading of 039°.
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. 0.8°E N b. 0.0° N c. 0.5°W Y d. 1.0°W 11005: What is the maximum speed permitted in the Main Entrance Channel to Port Jefferson Harbor?
N a. 3 mph N b. 5 mph N c. 7 mph Y d. 12 mph 11106: What is the height of the tide at Great Salt Pond, on Block Island, at the morning high water (daylight savings time) on 1 July 1983?
N a. 1.3 feet Y b. 2.3 feet N c. 3.2 feet N d. There is no morning high water 11508: 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 1232 your position is LAT 41°20.0'N, LONG 71°40.0'W. What is the speed made good?
N a. 8.2 knots Y b. 8.5 knots N c. 8.9 knots N d. 9.2 knots 13909: The irregular black line around a charted light such as Race Rock Light indicates that it is __________.
N a. unwatched Y b. surrounded by riprap N c. a minor light N d. constructed on an artificial island 14704: At 0800 your vessel is at mile 110 on the Columbia River. Thirty minutes later your vessel is at mile 115. What is your speed in knots?
N a. 4.3 knots N b. 5.7 knots N c. 7.8 knots Y d. 8.7 knots 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 15145: At 2357 your position is 41°09.0'N, 71°47.0'W and Montauk Point Light bears 216° true. You change to a course of 293° true and your speed is 14.5 knots. At 0012 Montauk Point Light bears 177° true. Which statement about your 0012 running fix is TRUE?
N a. You are being set to the north. Y b. The fathometer reading is about 14 fathoms. N c. You are governed by the Inland Rules of the Road. N d. The fathometer trace shows you passed over the 89 foot sounding. 15310: Which chart could you use for greater detail of the area at the south end of York Spit Channel?
Y a. 12222 N b. 12224 N c. 12226 N d. 12254 15565: From your 0600 position, what is the course per gyrocompass to leave Watch Hill Light abeam to starboard at 2.0 miles if a southerly wind is producing 3° of leeway?
N a. 251°pgc N b. 254°pgc N c. 257°pgc Y d. 261°pgc 15607: If there is no current, what is the course per gyro compass from your 1600 position to point A located 0.5 mile due east of Hog Island Lighted Bell Buoy "12"?
N a. 190°pgc Y b. 193°pgc N c. 196°pgc N d. 199°pgc 15707: At 0725, you are heading 054°T, and Stratford Point Light is abeam to port at 3.1 miles. The current is 135°T at 1.8 knots. If you make turns for an engine speed of 8 knots, which course must you steer to make good 048°T?
Y a. 035°T N b. 042°T N c. 047°T N d. 055°T 15811: 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 15908: At 0740, you obtain the following radar information:
Branford Reef Light bearing 250° true @ 2.55 nm
What is your position?
N a. LAT 41°12.6'N, LONG 72°51.3'W N b. LAT 41°12.6'N, LONG 72°51.8'W Y c. LAT 41°12.4'N, LONG 72°51.5'W N d. LAT 41°12.3'N, LONG 72°52.0'W 15917: At what approximate distance would you expect Bartlett Reef Light to break the horizon, if the visibility is 27 nautical miles?
N a. 5.9 nm N b. 6.9 nm N c. 12.0 nm Y d. 12.8 nm 15945: At 2107 Southeast Point Light bears 062°T, and at 2112 this light bears 038°T. What is your distance off Southeast Point Light at 2112? (assume no set and drift)
N a. 2.1 miles Y b. 2.5 miles N c. 2.9 miles N d. 3.3 miles 16268: As you pass between trestle "B" and trestle "C" of the Chesapeake Bay Bridge - Tunnel, you sight along the trestle "C" when it is in line. The gyro bearing is 048°. What is the gyro error by observation?
N a. 4°E Y b. 1°E N c. 0° N d. 2°W 16407: At 0227, you are on course 087°T at 10 knots. What course per standard magnetic compass should you steer to make good your true course?
N a. 099°psc N b. 102°psc Y c. 105°psc N d. 109°psc 16516: At 0815, visibility is excellent and you can see Montauk
Point. Montauk Point is __________.
N a. low and rocky with scattered small pine trees N b. a low lying wetland N c. a flat wooded plain Y d. a high sandy bluff 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 16838: At 0800 you obtain the following Loran-C readings:
9960-X-27101
9960-Y-41612
9960-Z-58737
What is your vessel's position?
N a. LAT 37°20.9'N, LONG 75°29.5'W Y b. LAT 37°21.0'N, LONG 75°32.0'W N c. LAT 37°19.8'N, LONG 75°30.6'W N d. LAT 37°20.8'N, LONG 75°31.2'W