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 86: As you approach Shreves cut-off you see Red River Landing Gage (mile 302.4 AHP) which reads 6.2 feet. Which of the following statements is TRUE?
N a. This reading is 6.2 feet above the Low Water Reference Plane. Y b. This reading is at the same elevation as the 6.2 ft. mark on the Gage at Head of Passes. N c. The depth of water at Red River Landing is 6.2 ft. N d. A vessel drawing 7 ft. would be able to pass through the locks at Lower Old River. 253: According to the DR track line from your 0100 position, how far off Roanoke Point Shoal Buoy "5" should you be when the buoy is abeam?
N a. 1.8 mile N b. 1.3 mile Y c. 0.8 mile N d. 0.2 miles 276: At 1200, your position is 2.0 miles southwest of Bartlett Reef Light. Your heading is 075°T. Visibility is less than 0.2 mile in fog and rain. Which of the following signals is most likely to be from another vessel?
N a. Whistle from 125° relative N b. Bell from 350° relative Y c. Whistle from 075° relative N d. Horn from 330° relative 280: Your 1752 position places you __________.
N a. less than 0.5 mile eastward of York Spit Channel Y b. less than 0.5 mile westward of York Spit Channel N c. greater than 0.5 mile westward of York Spit Channel N d. greater than 0.5 mile eastward of York Spit Channel 385: At 0715 you take the following bearings:
Race Rock Light 328°pgc
Little Gull Island Light 249°pgc
Mt. Prospect Antenna 036°pgc
Based on your 0715 fix, which statement is TRUE?
N a. You are governed by the Inland Rules. N b. Your fathometer reads about 265 fathoms. N c. You are in a cable area. Y d. You are to the left of your track line. 394: A vessel at LAT 38°03.0'S, LONG 49°38.0'W, heads for a destination at LAT 41°26.0'S, LONG 38°32.0'W. Determine the true course by Mercator sailing.
Y a. 111.5°T N b. 113.5°T N c. 158.5°T N d. 160.5°T 471: The great circle distance from LAT 35°57.2'N, LONG 05°45.7'W to LAT 24°25.3'N, LONG 83°02.6'W is 3966.5 miles and the initial course is 283.7°T. The latitude of the vertex is 38°09.4'N. What is the longitude of the vertex?
N a. 28°02.6'W Y b. 28°18.2'W N c. 28°46.3'W N d. 28°54.7'W 529: You depart LAT 51°48.0'S, LONG 178°35.0'W and steam 179 miles on course 270°. What is the longitude of arrival?
N a. 173°47'W N b. 174°27'E Y c. 176°36'E N d. 179°52'W 617: Your vessel will sail from a position in LAT 8°51.0'N, LONG 81°31.0'W to a position at LAT 33°51.5'S, LONG 151°13.0'E. The distance by great circle is 7,635 miles, and you estimate an average speed of 15.0 knots. What is your estimated zone time of arrival if you depart at 1510 ZT, on 23 July?
Y a. 1110, 14 August N b. 0110, 14 August N c. 1110, 13 August N d. 1510, 13 August 1095: On 25 Oct. , your 0430 ZT DR position is LAT 24°48'N, LONG 65°31'W. Your vessel is on course 030°T at a speed of 18 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0455 running fix. NP-0025
Y a. LAT 24°53'N, LONG 65°28'W N b. LAT 24°53'N, LONG 65°12'W N c. LAT 24°54'N, LONG 65°17'W N d. LAT 25°03'N, LONG 65°18'W 1123: What is the vertical clearance of the Vicksburg Highway 80 Bridge when the river level is the same as the Low Water Reference Plane?
N a. 128.3 ft N b. 125.6 ft N c. 119.5 ft Y d. 116.3 ft 1263: On 18 October , your 1330 ZT DR position is LAT 27°32.0'N, LONG 154°47.0'W. You are on course 115°T at a speed of 20 knots. What will be the zone time of sunset at your vessel?
N a. 1715 N b. 1729 Y c. 1742 N d. 1751 1412: At Filter Point Light (mile 475 AHP) there are 3 close straight dashed lines on the map passing through the black dot below the number 475. What do these lines represent?
N a. Oil pipelines N b. Submerged gas pipelines Y c. Power Cables N d. Submerged fiber optic cable 1417: What is the distance from Baton Rouge, LA, to Hickman, KY, on the Mississippi River System?
N a. 117 miles N b. 433 miles N c. 656 miles Y d. 692 miles 1685: As you approach Buckridge Light (mile 412.5 AHP), which type of daymark would you see on the light structure?
N a. Red square N b. Green square N c. Red diamond Y d. Green diamond 1724: What is the mile point of the Natchez, MS Gage?
N a. 228.4 AHP N b. 265.4 AHP N c. 302.4 AHP Y d. 363.3 AHP 1768: The Natchez Gage reads 14.5 feet. The high point on your towboat is 47 feet above the water. What is the vertical clearance as you pass under the Natchez - Vidalia Highway Bridge?
N a. 58.0 feet Y b. 64.5 feet N c. 72.5 feet N d. 78.6 feet 1986: You are in charge of a vessel that damages an aid to navigation established and maintained by the United States. Which statement is TRUE?
N a. You must take the aid in tow and deliver it to the nearest Coast Guard, Marine Safety Office. N b. You must report the allision to the nearest Army Corps.. of
Engineers Office.N c. You may wait until you reach your destination before reporting the allision to the U.S. Coast Guard. Y d. You must report the accident to the nearest Officer in Charge, Marine Inspection. 2092: At your current speed of 23 knots you only have enough fuel remaining to travel 386 miles. You must travel 785 miles to reach your destination. What should you reduce your speed (knots) to in order to reach your destination?
N a. 19.3 N b. 17.7 Y c. 16.1 N d. 14.5 2248: Which company does NOT have a marine facility in Rosedale Harbor (mile 585 AHP)?
Y a. T.L. James N b. Rosedale-Boliver County Port Commission N c. Cives Steel Company N d. Sanders Elevator Corp 2655: You are steering 078°T, and a light is picked up dead ahead at a distance of 15.6 miles at 2316. You change course to pass the light 4.5 miles off abeam to port. If you are making 17 knots, what is your ETA at the position 4.5 miles off the light?
N a. 0006 Y b. 0009 N c. 0012 N d. 0015 2873: Your vessel is on a course of 103°T at 14 knots. At 1918 a light bears 129.5°T, and at 1937 the light bears 148°T.
At what time and at what distance off will your vessel be when abeam of the light?
N a. 1947, 2.8 miles N b. 1950, 3.2 miles N c. 1953, 3.8 miles Y d. 1956, 4.4 miles 3309: You have steamed 142 miles and consumed 15.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 472 miles?
N a. 36.5 tons Y b. 49.9 tons N c. 53.8 tons N d. 61.4 tons 3310: You have steamed 216 miles and consumed 19.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 315 miles?
Y a. 27.7 tons N b. 32.3 tons N c. 36.9 tons N d. 40.4 tons 3464: You are underway on course 315°T at 14 knots. The current is 135°T at 1.9 knots. What is the course being made good?
N a. 130°T Y b. 315°T N c. 317°T N d. 322°T 3761: Your vessel is proceeding up a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 283°
T, and the variation is 13°E. If the heading of your vessel at the time of the sighting is 278° per standard compass, what is the deviation?
N a. 5°E N b. 5°W N c. 8°E Y d. 8°W 4014: 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 true heading of 157°.
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. 2.0°W Y b. 1.5°W N c. 1.0°W N d. 0.0° 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 11704: What is the true heading to steer in York River Entrance Channel if your engines are turning for 10.2 knots, the current is 220°T at 1.2 knots and a southwesterly wind causes 3° of leeway?
N a. 316°T Y b. 313°T N c. 309°T N d. 300°T 13808: The chart symbol depicted at LAT 41°13.5'N, LONG 72°29.7'W indicates __________.
N a. the exact position of a dangerous wreck Y b. the approximate position of a wreck dangerous to surface navigation N c. a wreck cleared by wire drag to a depth of 39 feet N d. a wreck not dangerous to surface navigation 14201: The draw of the Burlington Northern railroad bridge across the Columbia River at mile 328.0 shall be opened on signal, without prior notice, from __________.
N a. 6:00 am to 6:00 pm N b. 6:00 pm to 6:00 am N c. 8:00 pm to 4:00 am Y d. 8:00 am to 4:00 pm 14700: How many nautical miles are between mile 105 and mile 234 on the Columbia River?
Y a. 112.1 N b. 119.5 N c. 129.0 N d. 148.4 15059: From your 0740 position, you change course to pass 1.1 miles north of Falkner Island Light. Which of the following is true?
N a. you should consult the sailing directions for pilotage requirements N b. you will pass 1.5 nm off Branford Reef Light Y c. your course will keep you clear of the 18' shoal N d. None of the above 15065: At 0925, you plot the following:
Falkner Island Light bearing 252° true @ 1.8 nm
If you correct for a current setting 035°T at 0.5 knot,
what true course will you steer from the 0925 position to arrive at a position 0.5 mile south of Long Sand Shoal West End Horn Buoy "W"?
N a. 089°T N b. 092°T Y c. 095°T N d. 102°T 15138: At 2045 you obtained the following Loran readings:
9960-W-14844.0
9960-X-26128.0
9960-Y-43712.5
What is your vessel's position?
N a. 40°41.1'N, 72°10.5'W N b. 40°41.4'N, 72°10.7'W Y c. 40°41.8'N, 72°10.8'W N d. 40°42.3'N, 72°11.3'W 15156: Your 1600 position is LAT 37°22.5'N, LONG 75°32.3'W. The depth of water is about __________.
N a. 38 feet (11.5 meters) N b. 45 feet (13.6 meters) Y c. 52 feet (15.8 meters) N d. 59 feet (17.3 meters) 15309: The engineer has advised that it will be necessary to secure the gyrocompass and the electronic equipment. From your 0315 position, what is your course per standard magnetic compass to York Spit Channel Buoy "38", if there is no current?
N a. 212°psc N b. 214°psc Y c. 216°psc N d. 218°psc 15320: Inbound, the color of Cape Henry Light will __________.
Y a. change before you reach Chesapeake Channel Lighted Bell Buoy "2C" N b. change after you reach Chesapeake Channel Lighted Bell Buoy "2C" N c. remain the same N d. alternate regardless of your position 15566: At 0520 you take the following observations:
Point Judith Light 036°pgc
Point Judith Harbor of Refuge
Main Breakwater Center Light 312°pgc
What is the position of your 0520 fix?
Y a. LAT 41°20.8'N, Long 71°29.7'W N b. LAT 41°20.8'N, Long 71°30.0'W N c. LAT 41°20.6'N, Long 71°30.0'W N d. LAT 41°20.5'N, Long 71°29.8'W 16420: If you want to put into Point Judith Harbor of Refuge, what chart should you use?
N a. 13205 N b. 13209 N c. 13217 Y d. 13219 16515: What action should you take to compensate for the above current?
N a. Continue on the same course and speed. Y b. Alter your course to the left. N c. Slow to 8.5 knots. N d. Alter your course to the right. 16568: From your 1930 position, you plot a course to pass 0.5 mile due south of Race Rock Light. If your vessel's speed is 8.0 knots, the current's set and drift are 040°T at 1.4 knots,
and a south wind produces a 3° leeway, what true course should you steer to make good your desired course?
Y a. 275°T N b. 280°T N c. 290°T N d. 294°T 16616: At 0130, your position is LAT 41°09.3'N, LONG 72°46.9'W when you change course to 086°T. If you make good 086°T,
what is the closest point of approach to Twenty-Eight Foot Shoal Lighted Buoy?
N a. 0.7 mile Y b. 0.9 mile N c. 1.1 miles N d. 1.2 miles 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