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.
62: The Greenville Gage reads 10.6 feet. The high point of your towboat is 54 feet above water. What is the vertical clearance as you pass under the Greenville Highway Bridge?
N a. 75.4 feet Y b. 65.4 feet N c. 54.2 feet N d. 44.4 feet 90: As you approach Giles Bend Cutoff Light (mile 367.7 AHP), what type of daymark would you see on the light structure?
N a. None N b. Red diamond N c. Red square Y d. Red triangle 228: Your height of eye is 25 feet (7.6 meters). If the visibility is 5.5 nautical miles, what is the luminous range of Wolf Trap Light?
N a. 17.0 miles N b. 16.0 miles N c. 12.0 miles Y d. 7.5 miles 374: You calculate that the current will be ebbing at the Race at 0700. You should expect to be set in which general direction at the Race?
N a. West Y b. East N c. Northeast N d. North 375: As you near Little Gull Island, you use your loran to insure that you do not come within 0.5 mile of the island. Which of the following loran readings will act as a danger line and keep you off Little Gull Island by a minimum of 0.5 mile?
N a. Not less than 9960-W-14735.8 N b. Not more than 9960-W-14735.9 Y c. Not less than 9960-Y-43953.5 N d. Not more than 9960-X-26149.0 416: A vessel at LAT 18°54'N, LONG 73°00'E, heads for a destination at LAT 13°12'N, LONG 54°00'E. Determine the true course and distance by Mercator sailing.
N a. 247°T, 1161 miles N b. 250°T, 1172 miles Y c. 253°T, 1154 miles N d. 256°T, 1136 miles 497: At 0845, Montauk Pt. Light is bearing 205°T at a radar distance of 6.6 miles. What is your speed made good from your 0815 position?
N a. 10.5 knots N b. 10.0 knots N c. 9.2 knots Y d. 8.4 knots 542: You observe the planet Saturn at a sextant altitude (hs) of 63°05.1' on 25 May . The index error is 4.5' off the arc. The height of eye is 62 feet. What is the observed altitude (Ho)?
N a. 63°00.6' Y b. 63°01.5' N c. 63°02.9' N d. 63°04.1' 634: You have orders to drop off the empties at the fleeting area at Cairo Point and add five loaded tank barges to your tow. If you are turning for 9 mph and estimate the current at 1.5 mph, what is your ETA at Cairo?
N a. 1031, 22 June Y b. 1423, 22 June N c. 1741, 22 June N d. 2210, 22 June 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. 1117: What is the length of the trip?
N a. 720.8 miles N b. 777.4 miles Y c. 897.2 miles N d. 906.3 miles 1131: At 1923, you increase speed to make good 9.2 mph. What is the first Gage you will pass after your speed change?
N a. Cottonwood Point Y b. Caruthersville N c. Fulton N d. New Madrid 1168: 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 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 1409: As you pass Solitude Lt. (mile 249.0 AHP) which dayboard would you see?
N a. Green square Y b. Green diamond N c. Red triangle N d. Red diamond 1749: Which light characteristics does Black Hawk Light (mile 318.3 AHP) have?
N a. 1 red flash every 4 seconds N b. 1 green flash every 4 seconds Y c. 1 white flash every 4 seconds N d. 2 white flashes every 5 seconds 1925: On 23 September , your 1836 DR position is LAT 25°18'S, LONG 162°36'E. You observe an unidentified star bearing 148°T at an observed altitude (Ho) of 13°32'. The chronometer reads 07h 34m 12s, and is 01m 54s slow. Which star did you observe?
N a. Antares N b. Canopus Y c. Achernar N d. Sirius 2121: At 1337 ZT, on July 17, , in DR position LAT 30° 56.8' S, LONG 039° 36.5' W, you observe an amplitude of the Moon. The upper limb of the moon is on the visible horizon, bearing 263.0°psc. The variation is 20°W. What is the deviation?
N a. 2.6°E N b. 2.6°W Y c. 3.6°E N d. 3.6°W 2214: Which of the following statements regarding aids to navigation shown in the Corps. of Engineers map book is TRUE?
N a. The U.S. Army Corps.. of Engineers is responsible for placing and maintaining all aids to navigation. Y b. Buoys should always be given as wide a berth in passing as possible. N c. Buoy positions as shown on the chart are exact. N d. Lights and daymarks are always shown in their exact location. 2233: You have orders to drop off the empties at the fleeting area at Cairo Point and add five loaded tank barges to your tow. If you are turning for 9 mph and estimate the current at 1.5 mph, what is your ETA at Cairo?
N a. 1031, 22 June Y b. 1423, 22 June N c. 1741, 22 June N d. 2210, 22 June 2458: You have steamed 560 miles at 23 knots and burning 524 barrels of fuel per day. You must decrease your consumption to 260 barrels per day with 316 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?
N a. 16.3 N b. 18.6 N c. 19.9 Y d. 21.6 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 3070: If the speed necessary for reaching port at a designated time is 19.6 knots and the pitch of the propeller is 24.6 feet, how many revolutions per minute will the shaft have to turn, assuming a 5% positive slip?
N a. 76 Y b. 85 N c. 97 N d. 106 3462: You are underway on course 160°T at 10 knots. The current is 210°T at 0.9 knots. What is the course made good?
N a. 156°T N b. 160°T Y c. 164°T N d. 169°T 3626: Your vessel is steering course 284°psc, variation for the area is 6°W, and deviation is 3°E. The wind is from the north-northeast, producing a 3° leeway. What true course are you making good?
N a. 275°T Y b. 278°T N c. 284°T N d. 290°T 3627: Your vessel is steering course 243°psc. Variation for the area is 5°E, and deviation is 2°W. The wind is from the south-southeast, producing a 2° leeway. What true course are you making good?
N a. 242°T N b. 244°T N c. 246°T Y d. 248°T 3634: You desire to make good a true course of 038°. The variation is 5°E, magnetic compass deviation is 4°W, and gyrocompass error is 4°W. A southeasterly wind produces a 4° leeway. What is the course to steer per standard magnetic compass to make the true course good?
N a. 033°psc Y b. 041°psc N c. 043°psc N d. 047°psc 10201: Your present position is LAT 41°05.5'N, LONG 72°38.0'W. Assuming that there are no set and drift, what course must you steer per standard magnetic compass (psc) to arrive at a position 0.5 mile due south of New Haven Lighted whistle Buoy NH?
N a. 315.5°psc Y b. 310.5°psc N c. 290.5°psc N d. 284.5°psc 10309: You are 3 miles due east of Montauk Point Light. What is the course per standard magnetic compass to LAT 41°00.0'N, LONG 71°30.0'W?
N a. 108°psc Y b. 122°psc N c. 124°psc N d. 130°psc 11409: At 0647 your position is LAT 41°08.6'N, LONG 72°41.6'W. At 0729 your position is LAT 41°10.3'N, LONG 72°29.2'W. What were your true course and speed made good?
N a. 074° at 9.5 knots Y b. 080° at 13.6 knots N c. 253° at 9.7 knots N d. 258° at 13.5 knots 11509: At 1014 you depart the entrance to Lake Montauk with light "1" close aboard. Your course is 066° per standard magnetic compass, and the speed is 8.6 knots. At 1232 your position is LAT 41°20.0'N, LONG 71°40.0'W. What is the course made good?
N a. 036°T Y b. 040°T N c. 044°T N d. 047°T 11906: Your position is 3 miles due east of Montauk Point Light. What is the course to steer to arrive at LAT 41°00.0'N, LONG 71°30.0'W, if you are turning for 8.7 knots, the current is 130° at 1.2 knots, and a northerly wind causes 3° of leeway?
N a. 112°T N b. 108°T N c. 105°T Y d. 102°T 12103: You sight Wolf Trap Light in line with New Point Comfort Spit Light "2" bearing 048° per standard magnetic compass. You are on course 203°psc. Based on this, you know __________.
N a. the compass error is 12°W N b. the deviation is 9°W Y c. that the deviation table is in error N d. the deviation is 3°E for bearings of 048° per standard magnetic compass 12108: You sight Tue Marshes Light (LAT 37°14.1'N, LONG 76°23.2'W) in line with Goodwin Thorofare Light "16" (LAT 37°13.7'N, LONG 76°25.0'W) bearing 262° per standard magnetic compass. What is TRUE if your vessel's heading is 119°psc?
N a. The compass error is 10°W. N b. The deviation table must be corrected for the change in date. N c. The deviation is 1°W. Y d. The deviation table is correct for a heading of 119°psc. 13404: Your vessel has become disabled and is dead in the water. Your GPS position is LAT 41°12.1'N, LONG 72°43.5'W. You decide to anchor at this position. Under normal conditions, how much anchor chain should you expect to put out?
N a. 80 to 190 feet N b. 190 to 240 feet Y c. 245 to 343 feet N d. 345 to 420 feet 13406: You are planning to anchor your vessel at LAT 41°01.1'N, LONG 73°02.8'W. What type of bottom should you expect at this position?
N a. Gray sand N b. Soft mud Y c. Gray mud N d. Hard sand 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 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 15067: At 0946, the radar range to Hammonasset Point is 2.5 miles.
The range to the eastern most point of Falkner Island is 3.3 miles, and the range to Horton Point is 10.1 miles. What is your position at 0946?
Y a. LAT 41°13.1'N, LONG 72°34.8'W N b. LAT 41°13.0'N, LONG 72°34.5'W N c. LAT 41°12.8'N, LONG 72°35.1'W N d. LAT 41°12.8'N, LONG 72°34.4'W 15230: What is the distance from Cairo Point, IL, to Arkansas City?
N a. 28 miles N b. 110 miles N c. 292 miles Y d. 400 miles 15568: At 0520, you are on course 243°pgc at 12 knots. What is the course per standard magnetic compass?
N a. 262°psc Y b. 258°psc N c. 233°psc N d. 227°psc 15622: What are the dimensions of the Old River Lock on the Lower Old River (304 AHP)?
Y a. 1190 x 75 feet N b. 1195 x 75 feet N c. 1195 x 84 feet N d. 1202 x 84 feet 15644: At 2045 You take the following set of bearings:
Watch Hill Point Light bears 005° true
Montauk Point Light bears 350° true
Determine your 2103 fix.
Y a. LAT 41°09.2'N, LONG 71°52.5'W N b. LAT 41°09.1'N, LONG 71°52.2'W N c. LAT 41°09.0'N, LONG 71°52.9'W N d. LAT 41°08.8'N, LONG 71°52.5'W 15661: At 0727, the cupola on Fishers Island is in line with Latimer Reef Light bearing 024°pgc. Based on this, the gyro error is __________.
N a. 2°E N b. 1°E N c. 0° Y d. 3°W 15809: At 0045, you obtain the following bearings:
Rocky Point lookout tower 072°T
Horton Point lighthouse 213°T
What were the set and drift between 0005 and 0045?
N a. 272°true, 0.9 knot N b. 272°true, 1.4 knots N c. 092°true, 0.9 knot Y d. 092°True, 1.4 knots 15907: At 0720, you are in the outer channel between buoy "1" and buoy "2" and change course to pass Townshend Ledge Lighted Gong Buoy "10A" abeam to port at 200 yards. What is your ETA off the buoy?
N a. 0734 Y b. 0738 N c. 0741 N d. 0745 15910: At 0802, Branford Reef Light bears 348°T at 0.75 mile,
and the north point of Falkner Island bears 088°T at 6.7 miles. What were the set and drift since 0740?
N a. Set 040°T, drift .3 knot Y b. Set 220°T, drift .9 knot N c. Set 220°T, drift .3 knot N d. You are making good your intended course and speed. 15920: What chart should you use after you enter New London Harbor?
N a. 13211 Y b. 13213 N c. 13214 N d. 13272 16018: At 0550, engineering repairs are complete and speed is increased to 9.6 knots. At 0630, Falkner Island Light bears 023°pgc and Horton Point Light bears 097°pgc. From your 0630 fix you steer to make good a course of 086°T while turning for 9.6 knots. At 0700, Falkner Island Light bears 336.0°pgc and Horton Point Light bears 105.5°pgc. The radar range to the south tip of Falkner Island is 5.7 miles. Which statement is TRUE?
N a. Your course made good from 0630 to 0700 was 082°T. N b. The speed made good from 0630 to 0700 was 10.1 knots. N c. The current from 0630 to 0700 was 279°T at 0.6 knot. Y d. You are making good your intended speed. 16346: After passing through the Race, enroute to Bridgeport, CN,
and Race Rock Light is 2 miles astern you notice an equal interval flashing red light on the starboard side. This light is __________.
N a. New London Airport Aerobeacon Y b. New London Harbor Light N c. New London Ledge Light N d. Bartlett Reef Light 16517: At 0815, you change course to 079°T and head for the entrance of Great Salt Pond on Block Island. To compensate for a northerly wind, you estimate a 5° leeway is necessary. What course should you steer per gyrocompass to make good 079°T?
N a. 079°pgc N b. 076°pgc N c. 074°pgc Y d. 071°pgc 16615: At 0112, the radar range to Branford Reef Light is 2.9 miles. At 0125, the range is 3.6 miles. What is the position of your 0125 running fix if you are steering 124°T at 12 knots?
Y a. LAT 41°09.7'N, LONG 72°48.1'W N b. LAT 41°09.7'N, LONG 72°48.7'W N c. LAT 41°09.8'N, LONG 72°47.2'W N d. LAT 41°10.2'N, LONG 72°47.7'W :
N a. N b. N c. N d.