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.
35: What are the dimensions of the channel maintained at Baton Rouge, LA?
N a. 30 feet x 300 feet Y b. 45 feet x 500 feet N c. 30 feet x 500 feet N d. 40 feet x 300 feet 36: 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 N c. 0232, 21 October Y d. 0519, 21 October 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 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 187: 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 Y c. 75°40.5'W N d. 75°41.4'W 284: Based on a DR, at approximately 1817 you would expect to __________.
N a. enter a traffic separation zone N b. cross a submerged pipeline Y c. depart a regulated area N d. depart a restricted area 348: At 0430, you take the following radar ranges:
Stratford Point Light @ 5.25 nm
Middle Ground Light @ 4.55 nm
What is your 0430 position?
N a. LAT 41°08.9'N, LONG 73°00.0'W N b. LAT 41°05.0'N, LONG 73°01.1'W Y c. LAT 41°05.8'N, LONG 73°00.8'W N d. LAT 41°06.5'N, LONG 73°01.4'W 382: You arrive at Cape Charles City at 1700 and depart at 1800. You are underway in Chesapeake Bay and encounter heavy fog. At 1830, you obtain the following radar information:
Old Plantation Flats Light bearing 041.5° true @ 1.9 nm
What is your 1830 position?
N a. LAT 37°10.3'N, LONG 76°04.5'W N b. LAT 37°10.3'N, LONG 76°06.5'W N c. LAT 37°12.3'N, LONG 76°06.5'W Y d. LAT 37°12.3'N, LONG 76°04.4'W 460: Determine the great circle distance and initial course from LAT 35°27.0'N, LONG 140°20.5'E to LAT 47°51.0'N, LONG 122°51.0'W.
N a. 4087 miles, 036°T Y b. 4115 miles, 045°T N c. 4122 miles. 076°T N d. 4136 miles, 076°T 553: At 0507, Stratford Shoal Middle Ground Light bears 208°pgc. What is the position of your 0507 running fix?
N a. LAT 41°04.6'N, LONG 73°04.7'W N b. LAT 41°04.8'N, LONG 73°04.8'W N c. LAT 41°04.8'N, LONG 73°04.9'W Y d. LAT 41°05.1'N, LONG 73°05.1'W 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 560: Which loran line can you follow to remain clear of all danger until south of New London?
Y a. 9960-Y-43960 N b. 9960-X-26450 N c. 9960-W-14900 N d. 9960-W-15000 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 632: The Memphis Gage reads 18.4 feet. The high point of your towboat is 48 feet above water. What is the vertical clearance as you pass under the Memphis Highway Bridge?
Y a. 46.4 feet N b. 53.8 feet N c. 66.4 feet N d. 75.4 feet 640: Which of the following statements concerning the buoys on the Mississippi River is TRUE?
N a. The position of river buoys can be determined by consulting the latest Light List - Vol. V. N b. A preferred channel mark is a lateral mark indicating a channel junction which must always be passed to starboard. Y c. Setting a buoy is the act of placing a buoy on assigned position in the water. N d. None of the above. 1084: On 4 Dec. , your 1500 ZT DR position is LAT 18°06.0'N, LONG 75°42.0'W. You are on course 020°T at a speed of 15.0 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 1548 running fix.
N a. LAT 18°10.3'N, LONG 75°34.5'W N b. LAT 18°12.6'N, LONG 75°42.0'W N c. LAT 18°14.0'N, LONG 75°40.0'W Y d. LAT 18°17.3'N, LONG 75°37.7'W 1183: On 25 June , your 0900 zone time DR position is LAT 24°10.0'S, LONG 148°30.0'W. Your vessel is on a course of 230°T at a speed of 18.0 knots. What is the zone time of local apparent noon (LAN)?
N a. 1154 N b. 1156 Y c. 1200 N d. 1204 1415: The highest point on your towboat is 52 feet above the water, and the Helena Gage reads +9.6 feet. What will be the vertical clearance when you pass under the A-span of the Helena Highway Bridge?
N a. 49.8 feet N b. 53.9 feet Y c. 57.8 feet N d. 73.1 feet 1415: The highest point on your towboat is 52 feet above the water, and the Helena Gage reads +9.6 feet. What will be the vertical clearance when you pass under the A-span of the Helena Highway Bridge?
N a. 49.8 feet N b. 53.9 feet Y c. 57.8 feet N d. 73.1 feet 1702: You are upbound approaching Springfield Bend Lt. (mile 244.8 AHP) downriver from Profit Island. Which of the following statements is TRUE?
Y a. Profit Island Chute is closed to navigation. N b. Tow length must not exceed 600 feet to use Profit Island Chute. N c. Tows must navigate toward left ascending bank when passing Profit Island Chute. N d. Profit Island Chute is open to navigation and is a shortcut for single barge tows. 1856: On 22 June , your 0424 ZT DR position is LAT 26°18.5'N,
LONG 124°18.2'W. You observe an unidentified star bearing 031°T at an observed altitude (Ho) of 49°26.0'. The chronometer reads 00h 23m 24s and is 01m 32s slow. What star did you observe?
N a. Peacock Y b. Schedar N c. Ankaa N d. Alioth 1897: On 22 June , your 0424 DR position is LAT 26°18.5'N, LONG 124°18.2'W. You observe an unidentified star bearing 249°T at an observed altitude (Ho) of 52°50.7'. The chronometer reads 00h 23m 24s, and is 01m 32s slow. What star did you observe?
N a. Peacock N b. Schedar N c. Ankaa Y d. Altair 2076: What is the mile point of the Fulton Gage?
Y a. 778 AHP N b. 687 AHP N c. 632 AHP N d. 598 AHP 2114: At 0209, your position is LAT 41°01.8'N, LONG 72°40.8'W.
What course should you steer per standard magnetic compass to make good 278° magnetic? (assume no set and drift)
N a. 262.0°psc N b. 265.0°psc Y c. 275.5°psc N d. 280.5°psc 2243: At 1444 ZT, on 28 July , in DR position LAT 40° 56.8' N, LONG 167° 12.4' E, you observe an amplitude of the Moon. The upper limb of the Moon is on the visible horizon and bears 299.3° psc. The variation is 1° E. What is the deviation?
Y a. 3.1°W N b. 3.1°E N c. 2.1°W N d. 2.1°E 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 2878: Your vessel is steering 143°T at 16 knots. At 2147 a light bears 106°T, and at 2206 the same light bears 078°T. What will be your distance off abeam?
N a. 5.1 miles N b. 5.4 miles Y c. 5.9 miles N d. 6.5 miles 2897: You are steaming on a course of 327°T at 13 knots. At 0207 you observe a lighthouse bearing 020°T. At 0226 the lighthouse bears 042°T. What is your distance off at the second bearing?
N a. 8.5 miles Y b. 8.9 miles N c. 9.2 miles N d. 9.7 miles 2897: You are steaming on a course of 327°T at 13 knots. At 0207 you observe a lighthouse bearing 020°T. At 0226 the lighthouse bears 042°T. What is your distance off at the second bearing?
N a. 8.5 miles Y b. 8.9 miles N c. 9.2 miles N d. 9.7 miles 3060: The propeller on a vessel has a diameter of 24.0 feet and a pitch of 21.3 feet. What would be the slip if the vessel cruised 510 miles in a 24 hour day (observed distance) at an average RPM of 86?
N a. -12.2% N b. +12.2% Y c. -17.5% N d. +17.5% 3101: You are turning 100 RPM, with a propeller pitch of 25 feet, and an estimated slip of -5%. What is the speed of advance?
N a. 24.7 knots N b. 23.5 knots Y c. 25.9 knots N d. 22.3 knots 3265: You have steamed 1587 miles at 11.2 knots, and have consumed one-half of your total fuel capacity of 2840 bbls. What is the maximum speed you can steam to complete the remaining 1951 miles?
N a. 9.1 knots N b. 9.9 knots Y c. 10.1 knots N d. 11.6 knots 3603: You are steering 318°psc. A northeasterly wind causes 3° of leeway. The variation is 14°E and the deviation table is extracted below. What will be the true course made good?
DEVIATION TABLE
MAG HDG DEV
300° 2°E
315° 0°
330° 2°W
N a. 301°T N b. 303°T N c. 327°T Y d. 329°T 11105: What is the height of the tide at Great Salt Pond on Block Island at the afternoon high water (daylight savings time) on 1 July 1983?
N a. 3.9 feet N b. 3.0 feet N c. 2.4 feet Y d. 2.1 feet 11700: What is the true heading to steer outbound in Thimble Shoal Channel if your engines are turning for 8.0 knots, the current is 050°T at 1.0 knot and a northerly wind causes 3° of leeway?
Y a. 111°T N b. 104°T N c. 101°T N d. 098°T 12201: Your vessel is steady on a heading of 203° per standard magnetic compass when you sight New Haven Light and New Haven Outer Channel Range Front Light in line over the stern. This information indicates that the __________.
N a. existing deviation table is correct for this heading N b. compass error is 17°W Y c. deviation table is in error for this heading N d. deviation is 1°E 12909: At 0914 you are in Chesapeake Bay southeast inbound lane with buoy "CBJ" close aboard to port. What is your ETA at Thimble Shoal Channel Buoy "19" if you are making 10.9 knots?
N a. 1034 Y b. 1038 N c. 1046 N d. 1042 13100: Your position is LAT 41°15.2'N, LONG 71°50.1'W at 1347. You are turning for 6.9 knots. What is your ETA at Shagwong Reef Buoy "7SR"?
Y a. 1506 N b. 1515 N c. 1521 N d. 1527 15119: What is the height above water of Davis Creek Channel Light "1"?
N a. 6 feet (1.8 meters) Y b. 15 feet (4.6 meters) N c. 17 feet (5.2 meters) N d. 24 feet (7.3 meters) 15164: From your 1920 position, you change course to enter Chesapeake Channel between buoys 9 and 10. What is the course per gyrocompass?
N a. 271°pgc N b. 274°pgc Y c. 277°pgc N d. 280°pgc 15256: At 0700, Stratford Shoal Middle Ground Light bears 143°pgc at 1.8 miles. What is your 0700 position?
N a. LAT 41°04.8'N, LONG 73°06.7'W Y b. LAT 41°05.0'N, LONG 73°07.6'W N c. LAT 41°05.1'N, LONG 73°06.8'W N d. LAT 41°05.3'N, LONG 73°07.9'W 15346: At 1942 Point Judith bears 030°T and has a range of 3.6 miles and Sandy Point has a range of 5.3 miles. What was your speed made good from your 1850 position?
N a. 12.5 knots Y b. 13.0 knots N c. 13.5 knots N d. 14.0 knots 15361: Your 0530 position is LAT 41°04.9'N, LONG 73°01.1'W. What is the course per standard magnetic compass to a position 1.0 mile south of Twenty Eight Foot Shoal "TE"
buoy?
N a. 082.0°psc N b. 092.5°psc N c. 096.0°psc Y d. 099.5°psc 15466: At 1015, you estimate you have 139 miles to complete the voyage. If you average 9.5 knots, you will complete the voyage in __________.
N a. 14 hours 22 minutes N b. 14 hours 30 minutes Y c. 14 hours 38 minutes N d. 14 hours 44 minutes 15466: At 1015, you estimate you have 139 miles to complete the voyage. If you average 9.5 knots, you will complete the voyage in __________.
N a. 14 hours 22 minutes N b. 14 hours 30 minutes Y c. 14 hours 38 minutes N d. 14 hours 44 minutes 15512: At 1850, you obtain the following bearings and distances:
Montauk Point 189°pgc 8.7 miles
Watch Hill Light 340°pgc 5.7 miles
What true course did you make good between 1830 and 1850?
N a. 289°T Y b. 294°T N c. 299°T N d. 307°T 15710: From your 0830 position, you wish to make good 097°T. There is no current, but a southerly wind is producing 3°
leeway. What course should you steer per standard magnetic compass in order to make good your true course?
N a. 118°psc Y b. 115°psc N c. 112°psc N d. 109°psc 15717: From your 1210 position, you are steering a course of 083°
T. Your engines are turning RPMs for 10 knots. The set and drift of the current are 310° at 1.7 knots. At what time should you expect to enter the red sector of New London Harbor Light?
N a. 1241 Y b. 1249 N c. 1256 N d. 1309 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 16545: At 0030 you alter course and speed to make good 265°T at 10 knots. What is your ETA at a point where Stratford Shoal Middle Ground Light is abeam?
N a. 0218 N b. 0223 N c. 0228 Y d. 0233 16719: You are bound for New London. Where will you cross the demarcation line and be governed by the Inland Rules of the Road?
N a. You are already governed by the Inland Rules. Y b. In the Race N c. Above the Thames River Bridge N d. You will not be governed by the Inland Rules. 20107: You are steaming at 19 knots and burning 440 barrels of fuel per day. You must decrease your consumption to 137 barrels per day. What must you reduce your speed to in order to burn this amount of fuel?
N a. 18.2 N b. 14.8 Y c. 12.9 N d. 11.1