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.
237: At 0845, you are on a course of 097°T, and Townshend Ledge Buoy "10A" is close abeam to port. With a westerly current of 1.2 knots, what speed will you have to turn for from your 0845 position in order to arrive abeam of Six Mile Reef Buoy "8C" at 1030?
N a. 12.1 knots Y b. 10.9 knots N c. 9.7 knots N d. 8.5 knots 381: At 1540, your position is LAT 37°18.4'N, LONG 76°10.5'W. Which course should you steer per gyrocompass to head for the entrance to Cape Charles City?
Y a. 129°pgc N b. 123°pgc N c. 117°pgc N d. 109°pgc 571: At 0845, you are approaching the entrances to Thimble Shoal Channel. What channel must you use?
N a. The South Auxiliary Channel or Thimble Shoal Channel, but you must remain on the right hand side of the channel. Y b. The South Auxiliary Channel since your draft is less than 25 feet (7.6 meters) and you are not a passenger vessel. N c. The North Auxiliary Channel since you are going to turn to a northerly heading near buoy "12". N d. You are not permitted to use any of the channels, but must remain outside the buoyed channel line. 622: You are on a voyage from Limoy, Costa Rica, to Los Angeles, CA. The distance from departure to arrival is 3150 miles. The speed of advance is 14.0 knots. You estimate 24.0 hours for bunkering at Colon, and 12.0 hours for the Panama Canal transit. If you take departure at 1836 hours (ZD +6), 28 January, what is your ETA (ZD +8) at Los Angeles?
N a. 1736, 9 February N b. 1736, 8 February Y c. 1336, 8 February N d. 0536, 8 February 812: On 28 July , your 0800 zone time (ZT) fix gives you a position of LAT 25°16.0'N, LONG 71°19.0'W. Your vessel is on course 026°T, and your speed is 17.5 knots. Local apparent noon (LAN) occurs at 1150 ZT, at which time a meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 82°28.7'. What is the latitude at 1200 ZT?
N a. 26°25.0'N Y b. 26°27.6'N N c. 26°29.8'N N d. 26°32.0'N 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 1193: On 26 September , your 0830 zone time DR position is LAT 23°04.0'N, LONG 129°16.0'E. Your vessel is on course 119°T at a speed of 20.0 knots. What is the zone time of local apparent noon (LAN)?
N a. 1158 N b. 1205 Y c. 1210 N d. 1214 1201: On 10 October , your 0930 zone time position is LAT 25°00.0'S, LONG 164°38.6'W. Your vessel is on course 180°T at a speed to 10.0 knots. What is the zone time of local apparent noon (LAN)?
Y a. 1145 N b. 1151 N c. 1203 N d. 1206 1248: What is the distance in river miles, from the new mouth of the White River to the Petroleum Fuel & Terminal Co. (mile 144.6 AHP)?
Y a. 454 miles N b. 427 miles N c. 384 miles N d. 370 miles 1469: On 2 March , your 2216 ZT DR position is LAT 21°20.0'S, LONG 17°10.0'W. At that time, you observe Saturn bearing 078°psc. The chronometer reads 11h 14m 04s, and the chronometer error is 02m 20s slow. The variation is 4.5°W. What is the deviation of the standard compass?
N a. 1.5°W N b. 1.6°E N c. 2.9°W Y d. 3.6°E 1494: On 5 August , your 0310 ZT position is LAT 09°02'N, LONG 21°08'W. You observe Polaris bearing 002°pgc. At the time of the observation the helmsman noted that he was heading 316°pgc and 329°psc. The variation is 15°W. What is the deviation for that heading?
N a. 0.0° N b. 1.5°W N c. 3.0°W Y d. 0.5°E 1672: On 11 May , your vessel's 1839 ZT position is LAT 17°30'N, LONG 63°55'W, when an amplitude of the Sun's center is observed on the celestial horizon bearing 301° per standard magnetic compass. Variation for this area is 10.5°W. The chronometer reads 10h 37m 10s and is 02m 08s slow. What is the deviation of the compass?
N a. 2.5°W N b. 2.0°W Y c. 1.5°W N d. 2.0°E 1743: 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 Corps.. of Engineers Office. Y c. You must report the accident to the nearest Officer in Charge, Marine Inspection. N d. You may wait until you reach your destination before reporting the allision to the U.S. Coast Guard. 1913: On 14 January , your 0550 DR position is LAT 25°26.0'N, LONG 38°16.0'W. You observe an unidentified star bearing 212°T at an observed altitude (Ho) of 41°42.3'. The chronometer reads 08h 48m 51s, and is 01m 22s slow. What star did you observe?
Y a. Gienah N b. Kochab N c. Gacrux N d. Eltanin 1923: On 17 March , your 1845 DR position is LAT 25°10.0'N, LONG 66°48.0'W. You observe an unidentified star bearing 077°T at an observed altitude (Ho) of 67°04.4'. The chronometer reads 10h 47m 49s, and is 1m 54s fast. What star did you observe?
N a. Capella N b. Mirfak Y c. Pollux N d. Rigel 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 2292: In addition to those found in the Coast Pilot, information concerning anchorage regulations for this area may be obtained from __________.
N a. Chesapeake Bay Port Authority, Hampton VA N b. Virginia - Maryland Pilots Association N c. Commanding General, Corps of Engineers, Washington, D.C. Y d. Office of the Commander 5th Coast Guard District 2327: After you enter Thimble Shoal Channel, you will alter course to pass between Trestle "A" and "B". Based upon your present position, passing buoy "12" to port, what is TRUE?
N a. You are required to proceed outbound in the North Auxiliary Channel to avoid ferry traffic N b. You may proceed outbound in Thimble Shoal Channel Y c. You should cross the main channel and proceed outbound in the South Auxiliary Channel N d. Water depth is 38 feet. 2460: You have steamed 499 miles at 21 knots and burning 462 barrels of fuel per day. You must decrease your consumption to 221 barrels per day with 311 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?
N a. 17.3 Y b. 18.4 N c. 19.1 N d. 20.0 2586: At 2100 Branford Reef Light bears 347°psc and Falkner Island Light bears 059°psc. You also get a radar range of 5.3 miles from Branford Reef Light. What are your LORAN readings?
N a. 14994.0, 26473.0, 43982.0 N b. 14994.5, 26482.0, 43982.0 Y c. 14996.0, 26477.5, 43981.0 N d. 14997.5, 26479.5, 43981.0 2697: You are underway on course 106°T at a speed of 15.3 knots.
You sight a buoy bearing 109°T at a radar range of 3.6 miles at 1725. If you change course at 1728, what is the course to steer to leave the buoy abeam to port at 0.5 mile?
N a. 100°T N b. 117°T Y c. 120°T N d. 125°T 2859: Your vessel is on a course of 307°T at 20 knots. At 0914 a light bears 284.5°T, and at 0937 the light bears 262°T.
At what time and at what distance off will your vessel be when abeam of the light?
N a. 0950, 4.4 miles Y b. 0953, 5.4 miles N c. 0957, 6.6 miles N d. 1002, 7.1 miles 2860: Your vessel is on a course of 144°T at 16 knots. At 0126 a light bears 166.5°T, and at 0152 the light bears 189°T.
At what time and at what distance off will your vessel be when abeam of the light?
N a. 0205, 4.1 miles Y b. 0210, 4.8 miles N c. 0215, 6.0 miles N d. 0220, 6.4 miles 2885: Your vessel is steering 194°T at 13 knots. At 0116 a light bears 243°T, and at 0147 the same light bears 267°T. What will be your distance off abeam?
N a. 11.2 miles N b. 11.6 miles Y c. 12.0 miles N d. 12.5 miles 2899: You are steaming on a course of 208°T at 21 knots. At 2019 you observe a lighthouse bearing 129°T. At 2030 the lighthouse bears 103°T. What is your distance off at the second bearing?
N a. 8.2 miles Y b. 8.6 miles N c. 8.9 miles N d. 9.3 miles 3263: You have steamed 1124 miles at 21 knots, and consumed 326 tons of fuel. If you have 210 tons of usable fuel remaining, how far can you steam at 17 knots?
N a. 1096 miles Y b. 1105 miles N c. 1218 miles N d. 1304 miles 3268: Your vessel arrives in port with sufficient fuel to steam 595 miles at 14 knots. If you are unable to take on bunkers, at what speed must you proceed to reach your next port, 707 miles distant?
N a. 12.2 knots N b. 12.5 knots Y c. 12.8 knots N d. 14.4 knots 11504: At 1016 your position is LAT 41°07.6'N, LONG 71°38.5'W. At 1116 your position is LAT 41°01.4'N, LONG 71°29.4'W. What was the course made good between the two positions?
Y a. 132°T N b. 135°T N c. 140°T N d. 143°T 12206: You sight Bartlett Reef Light (LAT 41°16.5'N, LONG 72°08.2'W) in line with New London Harbor Light (LAT 41°19.0'N, LONG 72°05.4'W) and bearing 059° per standard magnetic compass. What is the compass deviation?
N a. 4°E Y b. 4°W N c. 10°E N d. 10°W 12709: You are on course 157° per standard magnetic compass when you take the following bearings: Little Gull Island Light 276°psc Race Rock Light 301°psc Latimer Reef Light 028°psc What is your position?
N a. LAT 41°13.5'N, LONG 71°57.9'W Y b. LAT 41°13.5'N, LONG 71°57.4'W N c. LAT 41°13.6'N, LONG 71°57.0'W N d. LAT 41°13.6'N, LONG 71°57.8'W 13702: What chart should you use in Lynnhaven Bay (west of Cape Henry)?
N a. 12221 N b. 12256 N c. 12205 Y d. 12254 13805: What is the danger associated with anchoring your vessel within a 300 yard radius of Gardiners Point?
N a. An unusually strong current exists in this area. N b. The bottom is not suitable for holding the anchor. N c. Submerged pilings may exist in this area. Y d. Your anchor could become fouled on undetonated explosives. 13908: Montauk Point Light is 168 feet above what reference level?
N a. Mean low water N b. Mean tide level N c. Ground level Y d. Mean high water 14500: Your vessel is at mile 170 on the Columbia River. You are proceeding in a westerly direction and are approaching the lift bridge at Hood River. The pool level of the Bonneville reservoir stands at 92 feet above MSL. If the highest point on your vessel is 52 feet above the water, which of the following statements is TRUE?
N a. You may pass under the lift bridge, in the "down" position with a vertical clearance of 15 feet. N b. You may pass under the lift bridge in the "up" position with a clearance of 96 feet. N c. You may pass under the lift bridge, in the "down" position with a vertical clearance of 25 feet. Y d. You may pass under the lift bridge, in the "up" position with a vertical clearance of 76 feet. 14517: From your 2200 fix, you steer course 288°T to travel up the Thimble Shoal North Auxiliary Channel. If you are making good 6.0 knots, at what time would you expect to pass buoy "18" at the west end of the channel? (There are no set and drift.)
N a. 2239 N b. 2255 N c. 2315 Y d. 2344 15063: At 0830, you want the latest weather forecasts for the Falkner Island area. On what frequency do you set your FM radio for this information?
N a. 2182 kHz N b. 162.80 Mhz N c. 156.65 Mhz Y d. 162.55 Mhz 15106: The National Weather Service provides 24 hour weather broadcasts to vessels transiting the Chesapeake Bay Bridge Tunnel area on which frequency?
N a. 147.45 MHz Y b. 162.55 MHz N c. 181.15 MHz N d. 202.35 MHz 15116: According to your track line, how far off New Point Comfort Spit Light "4" will you be when abeam of this light?
Y a. 0.9 mile N b. 1.2 miles N c. 1.5 miles N d. 1.8 miles 15215: At 2015, you alter course to 154°pgc. What is the course per standard magnetic compass (psc)?
Y a. 162°psc N b. 157°psc N c. 152°psc N d. 142°psc 15410: 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 readings:
Old Plantation Flats Light @ 1.9 nm
New Point Comfort Light bearing 301° true @ 10.55 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 Y c. LAT 37°12.3'N, LONG 76°04.4'W N d. LAT 37°12.3'N, LONG 76°06.5'W 15458: You are delayed in sailing due to engineering problems. You get underway at 0630. A Coast Guard radio broadcast advises that an aircraft carrier will transit the Elizabeth River enroute Norfolk Naval Shipyard and a safety zone is in effect. Further information on how far you must remain from the carrier found is in __________.
N a. PUB 117 N b. Light List Y c. Coast Pilot N d. Chart Number 1 15510: From your 1800 position you steer a course of 350°psc at a speed of 10.0 knots. At 1830, your position is LAT 41°11.7'N, LONG 71°45.8'W. What are the set and drift of the current?
N a. 029°T, 0.7 knot Y b. 029°T, 1.4 knots N c. 209°T, 0.7 knot N d. 209°T, 1.4 knots 15627: What is the vertical clearance of the Natchez Highway Bridge (westbound) when the river level is the same as the Low Water Reference Plane (6.1 ft)?
N a. 102.2 ft N b. 108.3 ft Y c. 119.4 ft N d. 125.6 ft 15667: At 0815, you change course to 079°T. To compensate for a southerly wind, you estimate a 3° leeway is necessary. Which course should you steer per standard magnetic compass to make good 079°T?
N a. 090°psc N b. 093°psc N c. 095°psc Y d. 099°psc 15744: Montauk Point Light has a radar range of 3.9 miles and bears 170°T at 2232. What is the depth of water below your keel?
Y a. 40 feet N b. 60 feet N c. 70 feet N d. 80 feet 16109: You are turning for 9 knots, a westerly wind is causing 3° of leeway, and the current is 320°T at 1.2 knots. What true course should you steer to remain in the northern leg of York Spit Channel?
N a. 191°T Y b. 194°T N c. 197°T N d. 203°T 16112: At 0530, the Coast Guard announces that Chesapeake Channel is closed indefinitely due to a collision occurring in the channel between Trestle "B" and "C" of the Chesapeake Bay Bridge and Tunnel. You exit York Spit Channel, leaving buoy "20" abeam to port at 0.1 mile, and alter course to leave Horseshoe Crossing Lighted Bell Buoy abeam to port at 0.2 mile. What is the course per gyrocompass?
N a. 185°pgc N b. 187°pgc N c. 190°pgc Y d. 193°pgc 16140: Available information indicates that there is a set and drift in this area of 290°T at 2 knots. Allowing for this set and drift, what course must you steer to make good a true course of 150°, while maintaining an engine speed of 13 knots, from your 1930 position?
N a. 141°T Y b. 145°T N c. 149°T N d. 153°T 16146: From your 2054 position, you change course to 066°T. Maintaining course and speed of 18 knots, at what time can you expect to first cross the 90-foot curve if you experience no set and drift?
Y a. 2105 N b. 2111 N c. 2117 N d. 2125 16212: What is the course per standard magnetic compass between points "A" and "B"?
N a. 094.5° N b. 095.5° Y c. 098.5° N d. 099.5° 16567: From your 1915 position, you come left and set a course for Gardiners Point. At 1930, your position is LAT 41°12.7'N,
LONG 71°56.8'W. What type of bottom is charted at this position?
N a. Blue mud, gritty shells N b. Buried mussels, gritty shells Y c. Blue mud, gray sand N d. Bumpy mud with gravel surface 16707: Point Judith Harbor of Refuge __________.
N a. is used mostly by towing vessels N b. has a maximum depth of 14 feet at MHW N c. is easily accessible in heavy southerly seas Y d. is entered through the East Gap or the West Gap