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.
77: You pass Morrison Towhead Light (mile 890.5 AHP) at 1723. What was your average speed since leaving Cairo?
N a. 8.8 mph Y b. 8.5 mph N c. 7.8 mph N d. 7.5 mph 150: Which dayboard would you see on Puntney Light (mile 943.6 AHP)?
N a. Green square N b. Green triangle Y c. Red diamond N d. Red triangle 151: What is the distance from the Memphis Gage to the Redneb Services Dock in New Orleans, LA.
N a. 460 miles N b. 503 miles N c. 588 miles Y d. 633 miles 230: At 2123, your position is LAT 37°20.0'N, LONG 76°03.0'W. What is your distance offshore of Savage Neck?
Y a. 1.7 miles N b. 2.6 miles N c. 3.4 miles N d. 4.6 miles 339: The coastline by Cape Henry is best described as __________.
N a. rocky with pine scrubs N b. low wetlands Y c. sandy hills about eighty feet high N d. low and thinly wooded with many beach houses 343: While on a heading of 082°T, you sight Middle Ground Light in line with Old Field Point Light bearing 206° per standard magnetic compass. From this you can determine the __________.
Y a. deviation table is correct for that heading N b. variation N c. compass error is 17.5°E N d. deviation is 3.5°E for a bearing of 206° per standard magnetic compass 391: A vessel at LAT 40°42.0'N, LONG 74°01.0'W, heads for a destination at LAT 14°41.0'N, LONG 17°26.0'W. Determine the true course and distance by Mercator sailing.
N a. 123°T, 3066.5 miles N b. 123°T, 3065.6 miles N c. 118°T, 3066.5 miles Y d. 118°T, 3365.0 miles 494: What action should you take to compensate for the above current?
N a. Continue on the same course and speed. N b. Alter your course to the right. N c. Slow to 8.5 knots. Y d. Alter your course to the left. 501: You depart from the position in the previous question at 2114 and make good 12 knots on a course of 040°T. At what time will you sight New Haven Light if the visibility is 11 miles?
N a. The light is visible at 2114. N b. 2152 Y c. 2159 N d. 2206 686: The Vaucluse Trench fill revetment on the LMR extends from mile __________.
Y a. 535.6 - 532.9 RDB N b. 535.9 - 534.3 RDB N c. 535.9 - 534.3 LDB N d. 534.3 - 532.6 LDB 1010: On 8 February , your 0800 zone time position is LAT 21°55'S, LONG 52°27'W. Your vessel is on course 056°T at a speed of 17.5 knots. An observation of the Sun's lower limb is made at 0938 zone time, and the observed altitude (Ho) is 46°06.5'. The chronometer reads 12h 37m 23s, and the chronometer error is 1m 24s slow. LAN occurs at 1243 zone time, and a meridian altitude of the Sun's lower limb is made. The observed altitude (Ho) for this sight is 83°56.1'. Determine the vessel's 1200 zone time position.
N a. LAT 20°57.0'S, LONG 51°21.5'W N b. LAT 20°58.0'S, LONG 51°25.5'W N c. LAT 21°04.0'S, LONG 51°12.0'W Y d. LAT 21°04.0'S, LONG 51°21.5'W 1092: On 3 April , your vessel's 1400 ZT DR position is LAT 20°08.0'N, LONG 147°45.0'W. You are steering course 023°T at 18.0 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 1900 running fix. NP-0022
N a. LAT 21°39.8'N, LONG 146°59.7'W Y b. LAT 21°40.0'N, LONG 147°03.2'W N c. LAT 21°41.8'N, LONG 147°05.5'W N d. LAT 21°41.8'N, LONG 147°01.5'W 1227: At 0119, on 10 September, you pass Springfield Bend Lt. (mile 244.8 AHP) 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 8.5 mph?
N a. 1746, 12 September N b. 1244, 13 September Y c. 2329, 14 September N d. 0210, 15 September 1277: On 22 June , your 0400 zone time DR position is LAT 23°00'N, LONG 81°45'W. You are steaming on course 110°T at a speed of 8.6 knots. What will be the zone time of sunrise at your vessel?
N a. 0537 Y b. 0541 N c. 0545 N d. 0547 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 1416: Which company does NOT have a marine facility along the river bank in Madison Parish (mile 457.0 AHP)?
N a. Complex Chemical Co. N b. Delta Southern Railroads N c. Mid-Delta Helena, LLC Y d. Baxter Wilson 1456: On 12 September , your 0736 zone time DR position is LAT 28°34.0'S, LONG 174°49.0'E. At that time, you observe the Sun bearing 084° per standard magnetic compass (psc). The chronometer reads 07h 38m 11s, and the chronometer error is 01m 46s fast. The variation is 11°W. What is the deviation of the standard magnetic compass?
N a. 2.9°W Y b. 3.2°E N c. 3.9°E N d. 4.7°W 1483: On 31 May , your vessel's 1420 zone time DR position is LAT 29°06'N, LONG 120°06'W, when an azimuth of the Sun is observed. The bearing of the Sun per standard magnetic compass was 255.3°. The chronometer time of the observation is 10h 17m 24s. The chronometer error is 02m 32s slow. The variation for this area is 12.9°E. What is the deviation of the standard magnetic compass?
Y a. 2.5°W N b. 2.9°W N c. 2.9°E N d. 3.2°E 1667: On Sunday, 8 November, your ship is enroute from Texas City, TX, to Portland, ME. At 0632 ZT, you fix your position at LAT 27°06'N, LONG 90°36'W. When the lower limb of the Sun was two-thirds of a diameter above the visible horizon, the Sun bore 105° per standard magnetic compass. At this time the chronometer read 12h 39m 20s and is 3m 20s slow. If the variation is 3°E, determine the deviation of the standard compass.
Y a. 0.8°E N b. 0.8°W N c. 3.8°E N d. 3.8°W 1674: On 4 July , your vessel's 1722 zone time DR position is LAT 34°30'S, LONG 174°48'E, when an amplitude of the Sun is observed. The sun's center is on the visible horizon and bears 282° per standard magnetic compass. Variation in the area is 17.2°E. The chronometer reads 05h 21m 48s and is 02m 01s fast. What is the deviation of the compass?
Y a. 1.5°W N b. 2.0°W N c. 1.5°E N d. 2.0°E 1727: You pass under the Natchez bridge (mile 363.3 AHP) at 1300, on 27 March, and estimate the current to be 3.3 mph. What is your ETA at St. Louis if you continue to turn for 7.5 mph?
N a. 0617, 4 April Y b. 0316, 4 April N c. 1153, 30 March N d. 1253, 31 April 1738: Which of the following statements regarding aids to navigation shown in the Corps. of Engineers map book is TRUE?
Y a. Buoys should always be given as wide a berth in passing as possible. N b. The U.S. Army Corps.. of Engineers is responsible for placing and maintaining all aids to navigation. N c. Buoy positions as shown on the chart are exact. N d. Lights and daymarks are always shown in their exact location. 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 1773: What daymark should you see as you approach French Point Light (mile 915.4 AHP)?
Y a. Red triangle N b. Green triangle N c. Red diamond N d. Green diamond 1831: You pass Warnicott Bar Lt. at 1146, 24 May. What is your ETA off the Mhoon Landing Gage if you average 6.5 mph?
N a. 0152, 26 May N b. 0426, 26 May Y c. 1528, 26 May N d. 0909, 27 May 1892: On 22 July , your 0442 DR position is LAT 26°35.6'N, LONG 22°16.7'W. You observe an unidentified star bearing 091°T at an observed altitude (Ho) of 64°35.2'. The chronometer reads 05h 39m 03s, and is 03m 14s slow. What star did you observe?
Y a. Hamal N b. Rigel N c. Menkar N d. Acamar 2004: On 28 February , your 1850 zone time DR position is LAT 27°49.0'N, LONG 159°24.0'W. Considering their magnitude, azimuth, and altitude, which group includes the three stars best suited for a fix at star time?
Y a. Rigel, Schedar, Regulus N b. Sirius, Mirfak, Elnath N c. Hamal, Alkaid, Canopus N d. Bellatrix, Vega, Regulus 2088: At your current speed of 19 knots you only have enough fuel remaining to travel 265 miles. You must travel 731 miles to reach your destination. What should you reduce your speed (knots) to in order to reach your destination?
N a. 13.8 N b. 12.6 Y c. 11.4 N d. 10.2 2171: On 8 August , at 0545 ZT, morning stars were observed, and the vessel's position was determined to be LAT 26°16.0'
S, LONG 94°16.0'E. Your vessel is steaming at 20.0 knots on a course of 346°T. A sextant observation of the Sun's lower limb is made at 0905 ZT. The chronometer reads 03h 02m 52s, and the sextant altitude (hs) is 38°07.5'. The index error is 5.2' off the arc, and the chronometer error is 2m 17s slow. Your height of eye on the bridge is 72 feet (22.0 meters). What is the observed altitude (Ho) and azimuth (Zn) of this sight using the assumed position?
Y a. 38°19.4', 048.4°T N b. 38°19.4', 131.6°T N c. 38°54.9', 048.4°T N d. 38°54.9', 131.6°T 2287: You observe the lower limb of the Sun at a sextant altitude (hs) of 34°51.4' on 18 October . The index error is 2.0' off the arc. The height of eye is 54 feet (16.5 meters). What is the observed altitude (Ho)?
Y a. 35°01.2' N b. 35°03.6' N c. 35°05.2' N d. 35°07.4' 2711: Which light characteristics does Foster Light have?
N a. 1 green flash every 4 seconds N b. 1 red flash every 4 seconds Y c. 2 white flashes every 5 seconds N d. 2 red flashes every 5 seconds 2867: Your vessel is on a course of 144°T at 20 knots. At 0022 a light bears 117.5°T, and at 0035 the light bears 099°T.
At what time and at what distance off will your vessel be when abeam of the light?
N a. 0044, 3.2 miles Y b. 0048, 4.3 miles N c. 0052, 5.1 miles N d. 0056, 6.0 miles 2879: Your vessel is steering 354°T at 14 knots. At 0317 a light bears 049°T, and at 0342 the same light bears 071°T. What will be your distance off abeam?
Y a. 12.4 miles N b. 12.7 miles N c. 13.0 miles N d. 13.3 miles 3053: The propeller on a vessel has a diameter of 19.9 feet and a pitch of 21.6 feet. What would be the apparent slip if the vessel cruised 395 miles in a 23 hour day (observed distance) at an average RPM of 78?
Y a. -3.2% N b. +3.2% N c. -12.0% N d. +12.0% 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 3258: You have steamed 525 miles at 16.0 knots, and consumed 105 tons of fuel. If you have 308 tons of usable fuel remaining, how far can you steam at 19 knots?
N a. 920 miles Y b. 1092 miles N c. 1297 miles N d. 2172 miles 3472: You are taking a time tick using the 2000 signal from Kekaha-Kauai, Hawaii (WWVH). You hear a series of 1 second dashes followed by a 9 second silent period, then a long 1.3 second dash. At the beginning of the long dash, your comparing watch reads 08h 00m 49s. When compared to the chronometer, the comparing watch reads 08h 01m 33s, and the chronometer reads 08h 00m 56s. What is the chronometer error?
Y a. 0m 12s fast N b. 0m 56s fast N c. 0m 44s slow N d. 1m 26s slow 3625: Your vessel is steering course 111°psc, variation for the area is 5°E, and deviation is 3°W. The wind is from the northwest, producing a 1° leeway. What true course are you making good?
N a. 108°T N b. 110°T N c. 112°T Y d. 114°T 4011: You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2°E. The variation is 8°W. Find the deviation on a magnetic compass heading of 234°.
HEADING HEADING HEADING
PSC PGC PSC PGC PSC PGC
358.5° - 350° 122.5° - 110° 239.5° - 230°
030.5° - 020° 152.0° - 140° 269.0° - 260°
061.5° - 050° 181.0° - 170° 298.0° - 290°
092.0° - 080° 210.0° - 200° 327.5° - 320°
N a. 2.5°W N b. 2.5°E N c. 1.0°W Y d. 0.5°E 10612: You are taking a time tick using the 2000 signal from Kekaha-Kauai, Hawaii (WWVH). You hear a series of 1 second dashes followed by a 9 second silent period, then a long 1.3 second dash. At the beginning of the long dash, your comparing watch reads 08h 00m 08s. When compared to the chronometer, the comparing watch reads 08h 01m 15s, and the chronometer reads 07h 59m 55s. What is the chronometer error?
N a. 0m 08s fast N b. 1m 07s fast Y c. 1m 12s slow N d. 1m 28s slow 15169: At 2123, your position is LAT 37°20.0'N, LONG 76°03.0'W. What is your distance offshore of Savage Neck?
Y a. 1.7 miles N b. 2.5 miles N c. 3.6 miles N d. 10.9 miles 15242: From your 1155 position, you steer a course of 282°T at a speed of 9.5 knots. You obtain the following bearings:
1205: Falkner Island Light bears 318°T
1225: Falkner Island Light bears 355°T
Your 1225 running fix is __________.
N a. north of your intended track N b. 3.1 miles SSW of Falkner Island Light N c. ahead of the DR position Y d. south of your intended track 15356: You are on course 092°T, and the engines are turning for 8 knots. At 0452, you take the following bearings:
Stratford Point Light 020°pgc
Stratford Shoal (Middle Ground) Light 141°pgc
What is your 0452 position?
N a. LAT 41°05.4'N, LONG 73°07.7'W Y b. LAT 41°05.2'N, LONG 73°07.8'W N c. LAT 41°05.2'N, LONG 73°07.5'W N d. LAT 41°05.1'N, LONG 73°07.7'W 15719: On chart 12354, the datum from which heights of objects are taken is __________.
Y a. mean high water N b. mean low water N c. lowest low water N d. mean lower low water 15807: You are southeast of Saybrook Breakwater Light passing Saybrook Bar Lighted Bell Buoy "8". This buoy marks __________.
Y a. shoal water N b. a tide rips area N c. the junction with the Connecticut River N d. a sunken wreck 15864: At 0200, you take the following bearingss:
Mattituck Inlet Light bearing 125°pgc
Falkner Island Light bearing 355°pgc
What is the position of your 0200 fix?
Y a. LAT 41°03.9'N, LONG 72°38.9'W N b. LAT 41°03.8'N, LONG 72°39.1'W N c. LAT 41°03.7'N, LONG 72°38.5'W N d. LAT 41°03.5'N, LONG 72°38.8'W 16366: From your 0600 fix, you change course to 250°T. At 0605,
Cape Henry Light bears 250°T. At 0615, it bears 251°T. At 0625, it bears 252°T. Based on this you know you are __________.
Y a. being set to the south N b. being set to the north N c. meeting a current from dead ahead N d. running with a current from dead astern 16468: When Cape Henry Light is abeam, what is the approximate distance to Yorktown?
N a. 58 miles N b. 55 miles N c. 42 miles Y d. 34 miles 16511: At 0728, you change course to 080°T. When steady on course, the standard magnetic compass reads 097°. Which statement is TRUE?
N a. The gyro course is 083°pgc. N b. The magnetic heading is 090°. N c. The deviation is 1.0°E. Y d. The magnetic compass error is 17°W. 16711: At what time will you cross the 60 foot curve if you make good 12 knots?
Y a. 0528 N b. 0534 N c. 0541 N d. 0544