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.
112: Which of the following statements regarding buoys on the Mississippi River is TRUE?
Y a. Buoys should be given as wide a berth as possible in passing. N b. Buoy positions on the chart are exact. N c. The buoys are maintained on station year round. N d. The buoys do not shift positions due to permanent moorings. 144: What is the distance from the Arkansas River mouth to the Ohio River mouth in river miles?
N a. 594 miles N b. 546 miles N c. 422 miles Y d. 372 miles 356: At 0410, you take the following bearings:
New Point Comfort Light "2" 242°T
Wolf Trap Light 313°T
Horn Harbor Entrance Light "HH" 262°T
What is your 0410 position?
N a. LAT 37°20.9'N, LONG 76°07.7'W Y b. LAT 37°21.0'N, LONG 76°08.1'W N c. LAT 37°21.1'N, LONG 76°07.9'W N d. LAT 37°21.2'N, LONG 76°08.2'W 447: You are encountering heavy weather. What action should you take based on your 1430 fix?
N a. Continue on the same course but increase speed. N b. Continue on the same course at the same speed. N c. Slow to 8.3 knots to compensate for the current. Y d. Alter course to the right, to pass well clear of Southwest Ledge 496: 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?
Y a. 071°pgc N b. 074°pgc N c. 076°pgc N d. 079°pgc 535: You depart LAT 49°38'N, LONG 152°49'E, for LAT 49°38'N, LONG 176°12'E. What are the course and distance by parallel sailing?
Y a. 090°T, 909 miles N b. 090°T, 1204 miles N c. 270°T, 909 miles N d. 270°T, 1204 miles 567: What is the distance from Lamberts Point to abeam of Thimble Shoal Lt. following the navigable channel?
Y a. 11.2 miles N b. 10.6 miles N c. 9.8 miles N d. 9.0 miles 623: You are on a voyage from Baltimore, MD, to Seattle, WA. The distance from pilot to pilot is 5960 miles. The speed of advance is 16.0 knots. You estimate 16 hours for bunkering at Colon, and 12.0 hours for the Panama Canal transit. If you take departure at 0824 hours (ZD +5), 18 November, what is your ETA (ZD +8) at Seattle?
N a. 1654, 5 December N b. 1354, 5 December Y c. 2154, 4 December N d. 1354, 4 December 673: You estimate the current at 2.0 mph. What is the speed over the ground?
N a. 3.5 mph N b. 4.5 mph Y c. 5.5 mph N d. 9.5 mph 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 741: On 16 February , your 1845 ZT DR position is LAT 25°50.5'N, LONG 46°24.0'W. At that time you observe Polaris with a sextant altitude (hs) of 26°25.5'. The chronometer time of the sight is 09h 47m 30s and the chronometer error is 02m 16s fast. The index error is 2.5' off the arc, and the height of eye is 55.0 feet. What is your latitude by Polaris?
Y a. 25°38.0'N N b. 25°44.2'N N c. 26°00.1'N N d. 26°37.5'N 1163: What is the mile point of the Fulton Gage?
N a. 598 AHP N b. 632 AHP N c. 687 AHP Y d. 778 AHP 1167: Where can scheduled broadcast times of river stages be found?
N a. Sailing Directions N b. List of Lights Y c. Light List N d. Coast Pilot 1212: It is 21 November and you are keeping zone time +8. You are on course 082°T, speed 19 knots. Your 0830 DR position is LAT 24°14.8'N, LONG 133°35.5'W. What is the time of the second estimate of LAN by ship's clocks?
N a. 13h 35m 02s N b. 13h 03m 20s N c. 12h 35m 59s Y d. 12h 34m 51s 1247: At 0509, on 26 December, you pass under the Helena Highway Bridge (mile 661.7 AHP). What has been the average speed of the current since departing Memphis Harbor, McKellar Lake, if you have been making turns for 7.5 mph?
N a. 5.6 mph Y b. 4.4 mph N c. 2.1 mph N d. 1.8 mph 1735: As you pass under the Natchez-Vidalia Dual Bridge, the gage on the bridge reads 3.6 feet. If the highest point on your vessel is 62 ft. above the water, what is your vertical clearance?
Y a. 60.4 feet N b. 63.6 feet N c. 67.2 feet N d. 122.0 feet 1867: On 12 June , your 1845 DR position is LAT 21°47'N, LONG 46°52'W when you observe a faint unidentifiable star through a break in the clouds. The star bears 162°T at a sextant altitude (hs) of 28°36.5'. The index error is 0.5'
on the arc, and the height of eye is 45 feet. The chronometer reads 09h 43m 27s, and the chronometer error is 1m 46s slow. What star did you observe?
N a. Gamma Virginis Y b. Iota Centauri N c. Spica N d. Mimosa 1908: On 22 March , your 1834 DR position is LAT 26°13.5'S, LONG 108°36.5'W. You observe an unidentified star bearing 315°T at an observed altitude (Ho) of 66°01.2'. The chronometer reads 01h 32m 37s, and is 01m 50s slow. What star did you observe?
N a. Regulus N b. Menkar Y c. Rigel N d. Alphard 2204: The Clinch River empties into which river?
N a. Arkansas N b. Mississippi N c. Ohio Y d. Tennessee 2282: You observe the lower limb of the Sun at a sextant altitude (hs) of 42°44.0' on 22 June . The index error is 0.8' off the arc. The height of eye is 70 feet (21.3 meters). What is the observed altitude (Ho)?
N a. 42°19.8' N b. 42°21.7' Y c. 42°51.7' N d. 42°54.2' 2330: At 0731, what is the approximate depth of water?
N a. 31 feet (9.4 meters) Y b. 41 feet (12.5 meters) N c. 52 feet (15.7 meters) N d. 58 feet (17.6 meters) 2332: If you are making 8.3 knots over the ground, what is your ETA at the turning point in York Spit Channel at buoy "29"?
Y a. 0521 N b. 0509 N c. 0459 N d. 0448 2584: At 1930 you obtain two radar ranges: Hammonasset Point at 4.1 miles and the East side of Falkner Island at 7.6 miles. What is your position?
N a. LAT 41°11.2'N, LONG 072°30.6'W Y b. LAT 41°11.7'N, LONG 072°29.2'W N c. LAT 41°11.8'N, LONG 072°29.6'W N d. LAT 41°11.9'N, LONG 072°29.2'W 2676: While on a course of 019°pgc, a light bears 14° on the port bow at a distance of 15.3 miles. What course should you steer to pass 1.5 miles abeam of the light, leaving it to port?
N a. 006°pgc Y b. 011°pgc N c. 013°pgc N d. 015°pgc 2693: While on a course of 279°T, a light bears 12° on the starboard bow at a distance of 9.3 miles. What course should you steer to pass 4 miles abeam of the light leaving it to starboard?
N a. 253°T Y b. 265°T N c. 291°T N d. 305°T 2889: While underway you sight a light 11° on your port bow at a distance of 12 miles. Assuming you make good your course, what will be your distance off the light when abeam?
Y a. 2.3 miles N b. 3.1 miles N c. 3.9 miles N d. 4.5 miles 2910: Your vessel is steaming on a course of 140°T at 15 knots. At 1530 a lighthouse bears 200°T. At 1550 it bears 249°T. What is your distance from the lighthouse at 1550?
N a. 1.15 miles N b. 4.60 miles N c. 5.45 miles Y d. 5.75 miles 3054: The propeller on a vessel has a diameter of 22.8 feet and a pitch of 19.3 feet. What would be the apparent slip if the vessel cruised 287 miles in a 24 hour day (observed distance) at an average RPM of 67?
N a. -6.3% Y b. +6.3% N c. -24.0% N d. +24.0% 3081: If the speed necessary for reaching port at a designated time is 12.6 knots and the pitch of the propeller is 13.6 feet, how many revolutions per minute will the shaft have to turn, assuming no slip?
N a. 81 N b. 85 N c. 90 Y d. 94 3264: You have steamed 1134 miles at 10 knots, and consumed 121 tons of fuel. If you have to steam 1522 miles to complete the voyage, how many tons of fuel will be consumed while steaming at 12 knots?
N a. 146 tons N b. 189 tons N c. 200 tons Y d. 234 tons 3628: Your vessel is steering course 352°psc, variation for the area is 11°E, and deviation is 9°W. The wind is from the northeast, producing a 1° leeway. What true course are you making good?
N a. 349°T N b. 351°T Y c. 353°T N d. 355°T 3769: Entering a harbor, you take a bearing on a range and get 338° per gyrocompass (pgc). The true bearing from the chart is 340°T. Variation for the area is 14°E. Your course is 329° per standard magnetic compass (psc) and 338°pgc. The deviation on this heading is __________.
N a. 3°E Y b. 3°W N c. 5°E N d. 5°W 10206: Your 2230 position is LAT 41°07.4'N, LONG 72°44.0'W. Assuming that there are no set and drift, what course must you steer per standard magnetic compass (psc) to leave Twenty-Eight Foot Shoal Lighted Buoy (LAT 41°09.3'N, LONG 72°30.4'W) 1 mile abeam to port?
N a. 084°psc N b. 091°psc N c. 094°psc Y d. 098°psc 10308: You are 3 miles due east of Montauk Point Light. What is the course per standard magnetic compass to a position 1.5 miles due east of Watch Hill Point Light?
N a. 341°psc N b. 337°psc N c. 011°psc Y d. 007°psc 10900: The abandoned lighthouse west of Cape Henry Light is __________.
N a. painted black and white N b. a low mound of rubble Y c. a gray, pyramidal structure N d. a steel skeleton structure 11703: What is the true heading to steer inbound in York River Entrance Channel if your engines are turning for 9.8 knots, the current is 220°T at 1.2 knots, and a northeasterly wind causes 3° of leeway?
Y a. 319°T N b. 315°T N c. 301°T N d. 298°T 11802: What course should you steer by your standard magnetic compass (psc), between New Haven Light and Stratford Pt. Light, if the set and drift of the current are 345°T at 3.0 knots, and a northerly wind will cause 1° of leeway? Your engines are making turns for 18.0 knots.
N a. 245.0°psc Y b. 247.0°psc N c. 264.0°psc N d. 266.5°psc 12200: You are on course 119°psc. You sight New Haven Outer Channel Range Rear Light in line with the Outer Channel Range Front Light bearing 346° per standard magnetic compass. This indicates that __________.
N a. you should swing the vessel to determine the deviation Y b. the existing deviation table is correct for that heading N c. your compass is affected by a local magnetic disturbance N d. the compass error is 16°W 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 13303: You are considering anchoring approximately three miles northeast of Chesapeake Light. After examining the chart you decide not to because of the __________.
N a. large number of wrecks N b. coral being designated as a special protected area Y c. danger of unexploded mines N d. area being designated as a National Marine Sanctuary 15213: At 2015, your vessel is at the Chesapeake Bay Bridge and Tunnel midway between buoys "13" and "14". If the height of tide is -1 foot (-0.3 meters), what is the approximate depth of water?
Y a. 53 feet (15.5 meters) N b. 46 feet (13.9 meters) N c. 40 feet (12.1 meters) N d. 35 feet (10.6 meters) 15310: Which chart could you use for greater detail of the area at the south end of York Spit Channel?
Y a. 12222 N b. 12224 N c. 12226 N d. 12254 15369: Horton Point Light __________.
Y a. is shown from a white square tower N b. has a fixed green light N c. is 14 feet above sea level N d. is synchronized with a radio beacon 15413: From your 1915 fix you come right and steer a course of 200°T. At 2000, your position is LAT 37°05.5'N, LONG 76°07.0'W. Your intention is to pass through Chesapeake Channel. If there are no set and drift, what course would you steer per standard magnetic compass to make good a course of 145°T?
N a. 134° N b. 139° N c. 151° Y d. 156° 15513: If your height of eye is 35 feet (10.7 meters), what is the approximate geographic range of Block Island North Light?
N a. 7.4 nm N b. 13.0 nm N c. 14.3 nm Y d. 15.8 nm 15516: If you were to head into Fishers Island Sound, which of the following charts would you switch to for better detail of Mystic and Mystic Harbor?
N a. 13209 N b. 13212 N c. 13213 Y d. 13214 15614: From your 1920 position, you change course to enter Chesapeake Channel between buoys 9 and 10. What is the course per standard magnetic compass (psc) ?
N a. 286°psc Y b. 283°psc N c. 280°psc N d. 274°psc 16010: The characteristic of Branford Reef Light is __________.
N a. flashing red every 4 seconds N b. flashing red every 3 seconds Y c. flashing white every 6 seconds N d. flashing yellow every 4 seconds 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. 16362: The visibility is about 5 miles. Which statement about Cape Charles Light is TRUE?
N a. The light has been visible from the time you departed the anchorage. Y b. You should see Cape Charles Light at about 0400. N c. The light will become visible when you enter the inbound leg of the traffic separation scheme. N d. The light will not be visible until you are within 5 miles of the light. 16415: You can follow what loran reading between your two positions?
N a. There is no loran reading to follow. N b. 9960-Y-43958 N c. 9960-W-14655 Y d. 9960-X-25982 16440: What course per gyrocompass would you need to steer from the anchorage to York Spit Channel buoy "29"?
Y a. 172° pgc N b. 175° pgc N c. 178° pgc N d. 181° pgc 16458: If your engines turn for 6.5 knots, and you encounter a 0.5 knot southerly current, what is your ETA at point A?
N a. 0400 Y b. 0450 N c. 0501 N d. 0511 16717: At 0705, you take the following bearings:
Watch Hill Light 030.5°pgc
Latimer Reef Light 329.0°pgc
Race Rock Light 262.0°pgc
What was the true course made good between 0645 and 0705?
N a. 252°T Y b. 256°T N c. 263°T N d. 266°T 16839: At 0800 you reduce speed from sea speed. Speed was reduced by the time you passed abeam of Cape Charles Lighted Bell Buoy "12" at 0814. At this time Buoy "12" was abeam on your starboard side at a distance of 0.65 mile. Assuming you continue to make good your course of 202°T, what is your new speed if you pass abeam of Cape Charles Lighted Bell Buoy "14" at a distance of 1.5 miles at 0907?
N a. 13.6 knots Y b. 12.9 knots N c. 12.3 knots N d. 12.0 knots