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.
188: At 2020, what is the course to steer to enter the inbound lane of North Chesapeake Entrance traffic separation scheme if a northwesterly wind causes 3° of leeway?
N a. 227°pgc Y b. 221°pgc N c. 218°pgc N d. 215°pgc 322: From your 2200 fix, you steer course 288°T to travel up the Thimble Shoal North Auxiliary Channel. If you are making good 6.0 knots, at what time would you expect to pass buoy "18" at the west end of the channel? (There are no set and drift.)
N a. 2355 Y b. 2344 N c. 2335 N d. 2324 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 434: 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?
N a. 4.5°West N b. 3.5°West N c. 3.0°East Y d. 0.5°East 486: What is your speed from your 0630 position, with Buoy "PI" close abeam, to your 0654 position?
N a. 11.4 knots Y b. 10.5 knots N c. 9.3 knots N d. 8.2 knots 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 598: At 1132, 24 July, you pass Natchez Beam Lt. (mile 364.8 AHP). What is your ETA off the Memphis Gage if you average 8.0 mph?
N a. 2345, 25 July N b. 0525, 26 July Y c. 0947, 26 July N d. 2215, 26 July 621: You are on a voyage from New York, NY, to San Francisco, CA. The distance from pilot to pilot is 5132 miles. The speed of advance is 13.5 knots. You estimate 32 hours for bunkering at Colon, and 14 hours for the Panama Canal transit. If you take departure at 0600 hours (ZD +4), 16 May, what is your ETA (ZD +7) at San Francisco?
N a. 0609, 1 June Y b. 2109, 2 June N c. 0009, 3 June N d. 0409, 3 June 672: What is the total length of the trip?
Y a. 922.3 miles N b. 985.3 miles N c. 1155.8 miles N d. 1187.3 miles 813: On 7 November , your 0830 zone time fix gives you a position of LAT 27°36.0'N, LONG 162°19.0'W. Your vessel is on course 289°T and your speed is 19.0 knots. Local apparent noon (LAN) occurs at 1138 zone time, at which time a meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 45°35.0'. What is the latitude at 1200 ZT?
N a. 27°55.1'N N b. 27°57.2'N Y c. 27°59.5'N N d. 28°01.9'N 990: On 24 March , your 0800 zone time fix gives you a position of LAT 22°16.0'N, LONG 31°45.0'W. Your vessel is steaming a course of 285°T at a speed of 16.5 knots. An observation of the Sun's upper limb is made at 0938 zone time, and the observed altitude (Ho) is 46°32.2'. The chronometer reads 11h 41m 01s, and the chronometer error is 02m 50s fast. Local apparent noon occurs at 1214 zone time, and a meridian altitude of the Sun's lower limb is made. The observed altitude (Ho) for this sight is 68°55.8'. Determine the vessel's 1200 zone time position.
N a. LAT 22°35.0'N, LONG 30°29.0'W Y b. LAT 22°35.0'N, LONG 32°51.0'W N c. LAT 22°36.0'N, LONG 32°10.5'W N d. LAT 22°36.0'N, LONG 32°55.2'W 993: Your 0745 ZT, 15 July , position is LAT 29°04.0'N, LONG 71°17.5'W. You are on course 165°T, and your speed is 8.0 knots. You observed 3 morning sun lines. Determine the latitude and longitude of your 1130 running fix? NP-0003
Y a. LAT 28°35.0'N, LONG 71°08.5'W N b. LAT 28°39.8'N, LONG 71°04.0'W N c. LAT 28°40.5'N, LONG 71°13.0'W N d. LAT 28°43.3'N, LONG 71°02.5'W 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 1256: On 17 May , your 0300 ZT DR position is LAT 27°21.0'N,
LONG 146°14.0'E. You are on course 107°T at a speed of 18 knots. What will be the zone time of sunrise at your vessel?
N a. 0457 N b. 0511 N c. 0519 Y d. 0522 1267: On 10 December , your 1300 zone time (ZT) DR position is LAT 26°27.0'S, LONG 79°04.0'E. You are on course 068°T at a speed of 14 knots. What will be the zone time of sunset at your vessel?
Y a. 1824 N b. 1846 N c. 1854 N d. 1908 1301: As you approach Casting Yard Dock Lt. (mile 265.4 AHP) you notice on the map a circle with 2 black sectors. This symbol indicates a __________.
N a. lock N b. warning sign Y c. river gage N d. mooring buoy 1304: At 1000, on May 11th, you are passing George Prince Lt. (mile 364.1 AHP) in Natchez, Mississippi and must send an ETA to the Monsanto Terminal in St. Louis (mile 178.0 UMR). Your engines are still turning for 8.5 mph and you estimate the current at 2.5 mph. What will be your arrival time in St. Louis?
N a. 1919 on 15 May N b. 2344 on 15 May N c. 1113 on 16 May Y d. 1757 on 16 May 1495: On 9 September , your 2043 ZT position is LAT 24°18'N, LONG 66°46'W. You observe Polaris bearing 001°pgc. At the time of the observation the helmsman noted that he was heading 031°pgc and 040°psc. The variation is 11°W. What is the deviation for that heading?
N a. 0° N b. 1°W N c. 3°W Y d. 2°E 1959: The charts show two dashed lines crossing the river just south of St. Catherine Bar Light. What does this indicate?
N a. Overhead power lines N b. Louisiana-Mississippi ferry crossings N c. Two railroad trestles Y d. Two submerged oil pipelines 2093: At your current speed of 21 knots you only have enough fuel remaining to travel 435 miles. You must travel 755 miles to reach your destination. What should you reduce your speed (knots) to in order to reach your destination?
Y a. 15.9 N b. 17.1 N c. 18.3 N d. 19.5 2112: At 0130, you obtain the following bearings:
Horton Point Lighthouse 078°T
Mattituck Breakwater Light tower 196°T
What were the course and speed made good between 0100 and 0130?
Y a. 246°T at 9.8 knots N b. 253°T at 9.4 knots N c. 259°T at 9.8 knots N d. 267°T at 9.4 knots 2120: At 1502 ZT, on 4 August , in DR position LAT 11° 21.6' S, LONG 088° 14.3' E, you observe an amplitude of the Moon. The upper limb of the Moon is on the visible horizon and bears 289° psc. The variation is 15° W. What is the deviation?
N a. 1.1°E Y b. 1.1°W N c. 1.9°E N d. 1.9°W 2154: On 30 June , at 0630 zone time, morning stars were observed, and the vessel's position was determined to be LAT 25°15.0'S, LONG 175°36.0'E. Your vessel is steaming at 16.0 knots on a course of 302°T. A sextant observation of the Sun's lower limb is made at 1015 zone time. The chronometer reads 10h 14m 38s, and the sextant altitude is 32°07.9'. The index error is 4.5' on the arc, and the chronometer error is 01m 25s slow. Your height of eye on the bridge is 58.0 feet. What is the azimuth (Zn) of this sight using the assumed position?
Y a. 035.3°T N b. 144.7°T N c. 186.5°T N d. 248.5°T 2336: You have steamed 916 miles at 13 knots, and consumed 166 tons of fuel. If you have to steam 1325 miles to complete the voyage, how many tons of fuel will be consumed while steaming at 14 knots?
N a. 133 tons N b. 181 tons N c. 207 tons Y d. 278 tons 2457: You have steamed 369 miles at 16 knots and burning 326 barrels of fuel per day. You must decrease your consumption to 212 barrels per day with 271 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?
N a. 11.1 N b. 12.9 N c. 13.6 Y d. 15.1 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 2683: You are underway on a course of 135°pgc at 15 knots, and you sight a lighthouse dead ahead at a range of 12.5 miles at 1145. What course would you steer to leave the lighthouse 3.0 miles off your port beam?
N a. 117°pgc N b. 121°pgc Y c. 149°pgc N d. 154°pgc 2683: You are underway on a course of 135°pgc at 15 knots, and you sight a lighthouse dead ahead at a range of 12.5 miles at 1145. What course would you steer to leave the lighthouse 3.0 miles off your port beam?
N a. 117°pgc N b. 121°pgc Y c. 149°pgc N d. 154°pgc 3055: The propeller on a vessel has a diameter of 24.6 feet and a pitch of 26.1 feet. What would be the apparent slip if the vessel cruised 462 miles in a 24 hour day (observed distance) at an average RPM of 72?
N a. -2.7% N b. +2.7% Y c. -3.8% N d. +3.8% 3471: You are underway on course 172°T at 18.5 knots. The current is 078°T at 2.8 knots. What is the speed being made good?
Y a. 18.5 knots N b. 19.0 knots N c. 19.5 knots N d. 20.0 knots 3649: The true course between two points is 078°. Your gyrocompass has an error of 2°E. You make an allowance of 3° leeway for a north wind. What gyro course should be steered to make the true course good?
Y a. 073°pgc N b. 075°pgc N c. 077°pgc N d. 079°pgc 10706: At 0726 you depart Lake Montauk with light 1 close aboard and set course 310.5° per standard magnetic compass at 7.6 knots. At 0812 your GPS position is LAT 41°08.1'N, LONG 72°03.7'W. What is the current?
N a. 151°T at 1.0 knot N b. 164°T at 0.7 knot Y c. 334°T at 1.4 knot N d. 321°T at 0.8 knot 12102: You sight Thimble Shoal Light in line with Old Point Comfort Light bearing 265° per standard magnetic compass. You are on course 135°psc. Based on this, you know __________.
N a. there is no compass error N b. there is a local magnetic disturbance N c. you should swing your vessel and check the deviation table Y d. the deviation is 0° 13501: What type of bottom is found off the southern coast of Long Island?
N a. Blue Mud N b. Shingle Y c. Brown Sand N d. Shells 13902: A vessel enroute to Long Island Sound from sea will enter waters governed by the Inland Rules of the Road __________.
N a. when crossing the Territorial Sea boundary N b. between Montauk Point and Block Island N c. when north of latitude 41°10.0'N Y d. when passing through The Race 14204: The mooring float at Beacon Rock State Park is restricted to pleasure boats and to periods not to exceed __________.
N a. 12 hours N b. 24 hours Y c. 36 hours N d. 48 hours 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 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 15243: At 1245 the GPS shows your position to be LAT 41°10.3'N, LONG 72°44.2'W. You are steering a course of 284°T at an engine speed of 13.0 knots. At what time would you expect the New Haven Harbor Outer Range to be in line if you have a current setting 112°T at 1.2 knots?
N a. 1318 Y b. 1323 N c. 1328 N d. 1343 15411: 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. 144°T Y b. 150°T N c. 158°T N d. 162°T 15511: 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. N c. Its horn blasts every 30 seconds in fog. Y d. Its geographic range is 18.5 miles at a 35 foot (10.7 meter) height of eye. 15608: At 1630, you reach point A and come right to 204°T. Your engine speed is 12 knots. Your 1715, position is LAT 37°09.8'N, LONG 75°37.4'W. The current was __________.
N a. 067°T at 1.1 knots N b. 246°T at 1.1 knots Y c. 067°T at 1.5 knots N d. 246°T at 1.5 knots 15768: At 0830, Watch Hill Point bears 343°T at 3.5 miles by radar. What was the speed made good since 0745?
Y a. 7.1 knots N b. 6.7 knots N c. 5.8 knots N d. 5.4 knots 15827: As you approach Giles Bend Cutoff Light (mile 367.7 AHP), what type of daymark would you see on the light structure?
N a. Green diamond N b. Green triangle Y c. Red triangle N d. Red diamond 15869: After you raise Stratford Shoal Middle Ground Light, how will the bearings change if you pass to the north of the light?
Y a. The bearings will change to the left. N b. The bearings will remain steady. N c. The bearings will change to the right. N d. Magnetic compass bearings will change to the left and gyro compass bearings will change to the right. 16017: What is the approximate distance to New Bedford, MA, from your 0530 DR position, if your 0352 position was 7 miles from Bridgeport, CT?
N a. 77 miles N b. 91 miles Y c. 104 miles N d. 115 miles 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 16538: At 2216 your position is LAT 41°16.0'N, LONG 72°08.0'W. Which statement is TRUE?
Y a. You are in the red sector of New London Harbor Light. N b. Your fathometer reads approximately 40 feet. N c. You will cross the Colregs Demarcation Line if you continue on your present course. N d. Little Gull Island Light bears 339°T at 4.3 miles.