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.
78: At 1723 you increase speed to make good 9.2 mph. At 1937 you have a daymark on your port beam. What daymark is this?
N a. Tiptonville Ferry Landing Daymark N b. Tiptonville Light N c. Alaska Light and Daymark Y d. Merriwether Bend Light and Daymark 99: What is the mile point of the Rosedale Gage?
N a. 598 AHP Y b. 592 AHP N c. 587 AHP N d. 554 AHP 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 205: From your 1830 fix, you come left to a course of 290°T. Which of the following statements concerning Watch Hill Light is FALSE?
N a. The nominal range of its white light is 15 miles. N b. It displays both red and white lights. Y c. Its geographic range is 18.5 miles at a 35 foot (10.7 meter) height of eye. N d. Its horn blasts every 30 seconds in fog. 217: Your 1600 position is LAT 37°22.5'N, LONG 75°32.3'W. The depth of water under the keel is about __________.
N a. 59 feet (17.3 meters) N b. 52 feet (15.8 meters) N c. 45 feet (13.6 meters) Y d. 38 feet (11.5 meters) 218: 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. 199°pgc N b. 196°pgc Y c. 193°pgc N d. 190°pgc 362: At 0530, the Coast Guard announces that Chesapeake Channel is closed indefinitely due to a collision occurring in the channel between Trestle "B" and "C" of the Chesapeake Bay Bridge and Tunnel. You exit York Spit Channel, leaving buoy "20" abeam to port at 0.1 mile, and alter course to leave Horseshoe Crossing Lighted Bell Buoy abeam to port at 0.2 mile. What is the course per gyrocompass?
Y a. 193°pgc N b. 190°pgc N c. 187°pgc N d. 185°pgc 398: You depart LAT 32°16.6'N, LONG 68°28.0'W. What is the course and distance as calculated by Mercator sailing to a position at LAT 43°12.2'N, LONG 55°39.0'W?
Y a. 042.8°T, 896.2 miles N b. 049.1°T, 955.1 miles N c. 132.8°T, 896.2 miles N d. 136.6°T, 955.1 miles 558: At 0530, you change course to 090°T and increase speed to 8.5 knots. What is the course to steer per gyro compass if northerly winds are causing 2° of leeway?
N a. 094°pgc N b. 092°pgc Y c. 090°pgc N d. 088°pgc 572: At 0908, you change course to 010°T. What course should you steer per standard magnetic compass?
N a. 359° Y b. 021° N c. 017° N d. 003° 578: At 1008, you are entering York Spit Channel and buoy "19" is abeam to your starboard. What speed are you making good?
N a. 9.9 knots N b. 9.7 knots Y c. 9.0 knots N d. 8.4 knots 606: At 0915 zone time, on 11 May , you depart Yokohama, LAT 35°27.0'N, LONG 139°39.0'E (ZD -9). You are bound for Seattle, LAT 47°36.0'N, LONG 122°22.0'W, and you estimate your speed of advance at 19.5 knots. The distance is 4,276 miles. What is your estimated zone time of arrival at Seattle?
Y a. 1932, 19 May N b. 0332, 20 May N c. 1032, 20 May N d. 1232, 20 May 629: You are on a voyage from Belem, Brazil, to Mobile, AL. The distance from departure to arrival is 3150 miles. The speed of advance is 14.0 knots. You estimate a layover in San Juan, Puerto Rico, of 17.5 hours. If you took departure at 2200 (ZD +3h 30m), 26 February , what was your ETA (ZD +6) at Mobile?
N a. 1900, 8 March Y b. 2200, 8 March N c. 0400, 9 March N d. 2200, 9 March 989: On 2 April , your 0830 zone time fix gives you a position of LAT 20°16.0'S, LONG 004°12.0'E. Your vessel is steaming a course of 143°T at a speed of 18.0 knots. An observation of the Sun's upper limb is made at 0903 zone time, and the observed altitude (Ho) is 42°39.6'. The chronometer reads 09h 05m 40s, and the chronometer error is 02m 15s fast. Local apparent noon occurs at 1145 zone time,
and a meridian altitude of the Sun's lower limb is made.
The observed altitude (Ho) for this sight is 63°46.2'.
Determine the vessel's 1200 zone time position.
N a. LAT 21°10.1'S, LONG 004°53.9'E N b. LAT 21°14.0'S, LONG 004°55.0'E Y c. LAT 21°18.0'S, LONG 005°00.5'E N d. LAT 22°42.0'S, LONG 004°57.0'E 1107: On 16 April , your 0200 zone time DR position is LAT 17°18'S, LONG 168°46'E. You are on course 236°T at a speed of 16 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0600 running fix.
N a. LAT 17°54.9'S, LONG 167°48.7'E N b. LAT 17°55.6'S, LONG 167°45.1'E N c. LAT 17°56.8'S, LONG 167°52.4'E Y d. LAT 18°00.4'S, LONG 167°49.2'E 1191: On 14 October , your 0800 ZT DR position is LAT 28°22.0'N, LONG 161°17.0'E. Your vessel is on course 116°T at a speed of 17.5 knots. What is the ZT of local apparent noon (LAN)?
N a. 1142 N b. 1148 N c. 1152 Y d. 1156 1214: It is 25 February and you are keeping zone time +4. You are on course 283°T, speed 22 knots. Your 0900 DR position is LAT 29°10.3'N, LONG 72°04.9'W. What is the time of the second estimate of LAN by ship's clocks?
N a. 13h 08m 56s Y b. 13h 08m 02s N c. 12h 41m 36s N d. 12h 07m 56s 1481: On 24 May , your vessel's 1000 ZT position is LAT 25°36.0'N, LONG 118°39.5'W, when you take an azimuth of the Sun. Determine the gyro error using the azimuth information.
Chronometer time: 06h 21m 48s Chronometer error: fast 01m 36s Gyro bearing: 099.4°
Variation: 11.1°E
N a. 0.3°W Y b. 1.3°W N c. 1.8°E N d. 2.4°E 1896: On 22 June , your 0424 DR position is LAT 26°18.5'N, LONG 124°18.2'W. You observe an unidentified star bearing 154°T at an observed altitude (Ho) of 15°01.2'. The chronometer reads 12h 23m 24s, and is 01m 32s slow. What star did you observe?
N a. Peacock N b. Schedar Y c. Ankaa N d. Alioth 1905: On 22 March , your 0519 DR position is LAT 27°20.6'N, LONG 69°25.6'W. You observe an unidentified star bearing 200°T at an observed altitude (Ho) of 33°05.5'. The chronometer reads 10h 16m 47s, and is 02m 15s slow. What star did you observe?
N a. Acamar N b. Enif Y c. Antares N d. Rigel 2020: On 23 July , your 1700 zone time DR position is LAT 27°29'N, LONG 129°26'W. You are on course 079°T at a speed of 20 knots. Considering their magnitude, azimuth, and altitude, which group includes the three bodies best suited for a fix at star time?
N a. Arcturus, Jupiter, Denebola Y b. Spica, Sabik, Vega N c. Antares, Polaris, Altair N d. Jupiter, Saturn, Polaris 2187: 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. 1600 hours 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 2275: You observe the lower limb of the Sun at a sextant altitude (hs) of 24°00.7' on 10 January . The index error is 2.6' off the arc. The height of eye is 55 feet. What is the observed altitude (Ho)?
N a. 24°07.4' N b. 24°08.9' Y c. 24°10.2' N d. 24°11.8' 2297: The Platte River empties into which river?
N a. Mississippi N b. Ohio Y c. Missouri N d. Tennessee 2582: From your 1750 GPS position at LAT 41°15.6'N, LONG 072°11.5'W, you plot a course of 255°T at 8.5 kts. At what time would you see Falkner Island Light, if visibility is 10 miles?
N a. 1819 Y b. 1850 N c. 1910 N d. 1917 2698: While on a course of 138°T, a light bears 14° on the starboard bow at a distance of 8.6 miles. What course should you steer to pass 3 miles abeam of the light leaving it to starboard?
Y a. 132°T N b. 135°T N c. 138°T N d. 141°T 2909: You are running coastwise at 14 knots. You sight a lighthouse abeam at 0912. At 0939 the lighthouse is 4 points abaft the beam. What is your distance off at the second bearing?
N a. 5.5 miles N b. 6.3 miles N c. 7.8 miles Y d. 8.9 miles 3077: If the speed necessary for reaching port at a designated time is 23.7 knots and the pitch of the propeller is 20.8 feet, how many revolutions per minute will the shaft have to turn, assuming a 7% negative slip?
Y a. 108 N b. 112 N c. 116 N d. 124 3102: You are turning 88 RPM, with a propeller pitch of 19 feet, and an estimated slip of 0%. What is the speed of advance?
Y a. 16.5 knots N b. 16.9 knots N c. 17.3 knots N d. 18.1 knots 3106: You are turning 85 RPM, with a propeller pitch of 19 feet, and an estimated slip of +3%. What is the speed of advance?
N a. 14.7 knots Y b. 15.5 knots N c. 16.4 knots N d. 17.1 knots 3256: You have steamed 918 miles at 15.0 knots, and consumed 183 tons of fuel. If you have 200 tons of usable fuel remaining, how far can you steam at 12 knots?
N a. 1021 miles N b. 1261 miles Y c. 1568 miles N d. 1960 miles 3298: Your vessel consumes 216 barrels of fuel per day at a speed of 15.0 knots. What will be the fuel consumption of your vessel at 17.5 knots?
N a. 232 bbls N b. 252 bbls N c. 294 bbls Y d. 343 bbls 3461: You wish to make good a course of 053°T while turning for an engine speed of 16 knots. The set is 345°T, and the drift is 2.4 knots. What speed will you make good along the track line?
N a. 14.1 knots N b. 15.2 knots N c. 16.1 knots Y d. 16.8 knots 3759: 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 147°T, and the variation is 5°E. If the heading of your vessel at the time of the sighting is 148° per standard magnetic compass,
what is the correct deviation?
N a. 1°E N b. 1°W N c. 6°E Y d. 6°W 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 12704: You are on course 137° per standard magnetic compass when you take the following bearings: Watch Hill Point Light - 051°psc Montauk Point Light - 184°psc Race Rock Light - 279°psc What is your position?
Y a. LAT 41°15.2'N, LONG 71°54.4'W N b. LAT 41°15.1'N, LONG 71°53.8'W N c. LAT 41°15.1'N, LONG 71°54.9'W N d. LAT 41°15.0'N, LONG 71°53.7'W 13900: The trapezoidal shaped areas enclosed by a thin broken magenta line and located along the south coast of Long Island are __________.
N a. designated training areas for Navy amphibious craft N b. disposal areas for unexploded munitions Y c. fish trap areas N d. anchorage areas for small craft 15163: Which statement concerning your 1920 position is TRUE?
Y a. You are entering a restricted area. N b. You are governed by the Inland Rules of the Road. N c. You are within the Chesapeake Bay Entrance traffic separation scheme. N d. On your present course Trestle "C" of the Chesapeake Bay Bridge - Tunnel is dead ahead. 15313: From your noon position, if there is no set and drift, what is your course per standard magnetic compass to the "NCA"
(LL #375) buoy?
N a. 215°psc Y b. 217°psc N c. 219°psc N d. 221°psc 15657: What was the course made good from 0630 to 0654?
N a. 078°T Y b. 082°T N c. 086°T N d. 090°T 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 15716: At 1210, you are in position LAT 41°14.3'N, LONG 72°16.5'W. What is the depth of water below your keel?
Y a. 97 feet (29.4 meters) N b. 108 feet (32.7 meters) N c. 119 feet (36.1 meters) N d. 125 feet (37.9 meters) 15913: At 0830, you wish to get the latest weather forecasts for the Falkner Island area. On what frequency would you set your FM radio for this information?
N a. 2181 kHz N b. 156.65 Mhz N c. 156.80 Mhz Y d. 162.40 Mhz 15961: At 1810, a red buoy bears 010° relative. This buoy marks __________.
N a. the side of York Spit Channel N b. the visibility limit of the red sector of Cape Henry Light N c. a submerged obstruction in York Spit Channel Y d. the York River Entrance Channel 16015: By 0430, the wind has increased, and the visibility cleared due to passage of a front. You estimate 3° leeway due to NW'ly winds. What is the course per gyrocompass to pass 1.2 miles due south of Twenty-eight Foot Shoal Lighted Buoy "TE"?
Y a. 080° N b. 083° N c. 086° N d. 090° 16057: What is the maximum allowable speed of vessels underway up river from Tue Marshes Light?
N a. 8 knots N b. 10 knots Y c. 12 knots N d. 14 knots 16243: At 2207 Cape Charles Light bears 276°T, Chesapeake Light bears 194°T, and Cape Charles Lighted Bell Buoy "14" bears 312°T and is 2.0 miles off. What were the set and drift of the current acting on your vessel from 2129 to 2207?
N a. 258°T at 2.4 knots N b. 258°T at 1.5 knots N c. 078°T at 1.5 knots Y d. 078°T at 2.4 knots 16258: What is the course to steer per standard magnetic compass from the anchorage to point A, if easterly winds are causing 3° of leeway?
N a. 187° Y b. 191° N c. 194° N d. 197° 16319: As you enter the New Haven Outer Channel, you sight the outer range markers in line directly ahead. Your heading at this time is 347°psc. What is your compass deviation by observation?
Y a. 0.5°East N b. 3.0°East N c. 3.5°West N d. 4.5°East 16514: At 0815, Montauk Pt. Light House is bearing 167°T,
Shagwong Pt. has a radar range of 4.5 miles, and Cerberus Shoal "9" Buoy is bearing 284°T. If the engine is making turns for 10 knots, what was the set and drift of the current since 0748?
N a. Set 065°T, drift 1.1 knots N b. Set 065°T, drift 2.4 knots N c. Set 245°T, drift 1.1 knots Y d. Set 245°T, drift 2.4 knots 16714: What was the current between 0520 and 0600?
N a. 201° at 1.0 knot N b. 201° at 1.5 knot N c. 021° at 1.0 knot Y d. 021° at 1.5 knots