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.
147: After passing Oak Bend Lt. (mile 425.6 AHP) you see a light gray shaded area extending into the river shown on the map. This indicates a __________.
N a. fleeting area N b. weir N c. dike Y d. revetment 175: At 2118, you obtain the following bearings:
Cape Henry Light - 148°pgc
Cape Charles Light - 033°pgc
Thimble Shoal Light - 291°pgc
From this position, you proceed to Norfolk, VA, a distance of approximately 26.0 miles. To arrive at Norfolk by 0200 the next day, what is the speed to make good from your 2118 position to arrive at this time?
N a. 6.5 knots N b. 6.0 knots Y c. 5.5 knots N d. 5.0 knots 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 298: You have just passed York River Entrance Channel Lighted Buoys "13" and "14". The chart shows a light approximately 1.0 mile off your port beam with a light characteristic "Fl 6 sec". What is the name of this light?
Y a. York Spit Light N b. New Point Comfort Shoal Light N c. Mobjack Bay Entrance Light N d. York River Entrance Channel Light "1" 338: You passed Cape Henry Light at 0730 outbound at maximum flood. What approximate current can you expect on entering Chesapeake Channel?
N a. Slack before ebb N b. Slack before flood Y c. Flood current N d. Ebb current 403: You receive a distress call from a vessel reporting her position as LAT 30°21'N, LONG 88°34'W. Your position is LAT 24°30'N, LONG 83°00'W. Determine the true course and distance to the distress scene by Mercator sailing.
N a. 317°T, 470 miles Y b. 320°T, 460 miles N c. 322°T, 455 miles N d. 324°T, 460 miles 451: Determine the great circle distance and initial course from LAT 27°51.0'N, LONG 71°41.0'W to LAT 49°45.0'N, LONG 06°14.0'W.
N a. 3196 miles, 313.1°T Y b. 3214 miles, 046.9°T N c. 3219 miles, 042.5°T N d. 3231 miles, 041.4°T 499: Which chart should you use to enter Great Salt Pond?
N a. 13205 N b. 13207 N c. 13214 Y d. 13217 556: 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?
Y a. 099.5°psc N b. 096.0°psc N c. 092.5°psc N d. 082.0°psc 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 682: As you pass under the Natchez-Vidalia Dual Bridge, the gage on the bridge reads 8.9 ft. If the highest point on your vessel is 54 ft. above the water, what is your vertical clearance?
N a. 60.0 feet Y b. 63.1 feet N c. 67.2 feet N d. 122.0 feet 1076: On 25 Mar , your 0500 ZT DR position is LAT 28°14.0'S, LONG 93°17.0'E. You are on course 291°T at a speed of 16.0 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0550 running fix. NP-0006
Y a. LAT 28°15.9'S, LONG 92°56.9'E N b. LAT 28°19.3'S, LONG 92°59.0'E N c. LAT 28°06.4'S, LONG 93°02.5'E N d. LAT 27°53.2'S, LONG 93°17.6'E 1081: On 14 Sept , your 1810 ZT DR position is LAT 27°12.0'S, LONG 71°10.0'E. You are on course 060°T at a speed of 15.0 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 1822 running fix. NP-0011
N a. LAT 27°04.5'S, LONG 71°22.4'E N b. LAT 27°07.5'S, LONG 71°18.6'E N c. LAT 27°09.2'S, LONG 71°11.3'E Y d. LAT 27°11.0'S, LONG 71°14.5'E 1239: In high water conditions, which publication would you consult for the latest information on buoys between Baton Rouge and Cairo?
N a. List of Buoys and Daymarks N b. U.S.C.G. Light List N c. Army Corps. of Engineers Navigation Chart Y d. None of the above 1277: On 22 June , your 0400 zone time DR position is LAT 23°00'N, LONG 81°45'W. You are steaming on course 110°T at a speed of 8.6 knots. What will be the zone time of sunrise at your vessel?
N a. 0537 Y b. 0541 N c. 0545 N d. 0547 1299: What is the length of the trip?
N a. 405.8 miles Y b. 904.0 miles N c. 1002.0 miles N d. 1136.8 miles 1422: What organization has an installation at the uppermost end of Carthage Revetment?
N a. U.S. Coast Guard Y b. River Cement Co. N c. U.S. Army Corps. of Engineers N d. International Paper Co. 1752: After you get underway, what is the fourth river gage you will pass?
N a. Head of Passes Y b. Natchez N c. Bayou Sara N d. Red River Landing 1757: What town is located at mile 395 AHP?
Y a. St. Joseph N b. Belmont N c. St. James N d. Rodney 1866: 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 019.0°T at a sextant altitude (hs) of 53°56.2'. 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. Phecda N b. Mimosa N c. Gamma Ursae Minoris Y d. Mizar 1872: 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 031°T at a sextant altitude (hs) of 70°10.3'. 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. Sheratan N b. Ruchbah N c. Mimosa Y d. Cor Caroli 1885: On 26 November , your 0535 DR position is LAT 27°18.9'S, LONG 30°18.4'E. You observe an unidentified planet bearing 037°T at an observed altitude (Ho) of 50°06.4'. The chronometer reads 03h 33m 16s and is 01m 48s slow. What planet did you observe?
N a. Saturn N b. Jupiter Y c. Mars N d. Venus 1954: You have received orders to proceed to the Amoco Pipeline Co. (mile 253.6 AHP) above Baton Rouge. If your vessel is making turns for 9 mph with an estimated average current of 1.5 mph, what is your ETA at the Amoco docks?
Y a. 1444, 27 Aug N b. 2214, 27 Aug N c. 0844, 28 Aug N d. 1454, 28 Aug 2030: 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. 2051: On which map would you find Redman Point, Arkansas?
N a. 23 Y b. 20 N c. 17 N d. 5 2111: 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. 0.2 mile Y b. 0.6 mile N c. 1.3 mile N d. 1.8 miles 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 2871: Your vessel is on a course of 052°T at 16 knots. At 0916 a light bears 078.5°T, and at 0927 the light bears 097°T.
At what time and at what distance off will your vessel be when abeam of the light?
N a. 0929, 2.0 miles N b. 0932, 2.3 miles N c. 0935, 2.6 miles Y d. 0938, 2.9 miles 3092: If the pitch of the propeller is 24.8 feet, and the revolutions per day are 93,373, calculate the day's run allowing 11% positive slip.
N a. 307.3 miles Y b. 339.0 miles N c. 380.9 miles N d. 422.8 miles 3095: If the pitch of the propeller is 21.3 feet, and the revolutions per day are 126,214, calculate the day's run allowing 4% positive slip.
Y a. 424.5 miles N b. 442.1 miles N c. 459.9 miles N d. 477.3 miles 3467: You are underway on course 160°T at 10 knots. The current is 210°T at 0.9 knots. What is the speed being made good?
Y a. 10.7 knots N b. 11.0 knots N c. 11.6 knots N d. 12.3 knots 3618: Your vessel is steering course 027° per standard magnetic compass (psc), variation for the area is 19°W, and deviation is 2°E. The wind is from the north-northwest, producing a 5° leeway. What true course are you making good?
N a. 005°T Y b. 015°T N c. 044°T N d. 049°T 11300: At 1256 your GPS position is LAT 36°57.0'N, LONG 75°41.0'W. At 1336 your position is LAT 37°07.5'N, LONG 75°39.1'W. What was the speed made good between the fixes?
N a. 14.6 knots N b. 15.2 knots Y c. 16.0 knots N d. 18.6 knots 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 15018: What course per standard magnetic compass (psc) is the same as 247°pgc?
N a. 240°psc N b. 246°psc Y c. 257°psc N d. 260°psc 15409: 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?
N a. 109°pgc N b. 117°pgc N c. 123°pgc Y d. 129°pgc 15416: At 2200, you are in position LAT 36°57.5'N, LONG 76°02.5'W. You intend to travel up the Thimble Shoals auxiliary Channel to Hampton Roads. According to the Coast Pilot,
what is the depth of the auxiliary channel on either side of the main channel?
N a. 28 feet (8.5 meters) Y b. 32 feet (9.8 meters) N c. 36 feet (11.0 meters) N d. 45 feet (13.7 meters) 15441: At buoy "CB" you change course to follow the inbound
traffic lane. What is the course to steer per gyro compass if you correct your heading for a current of 315° at 1.0 knot and allow 3° leeway for northeasterly winds?
N a. 297°pgc N b. 299°pgc Y c. 302°pgc N d. 305°pgc 15806: What type of bottom is found at Long Sand Shoal?
N a. Rocky N b. Muddy N c. Sandy Y d. Hard 15916: If you correct for the current in the preceding question (215°T at 0.5 knot) and maintain an engine speed of 7.5 knots, what is your ETA 0.5 mile south of buoy "W"?
N a. 1016 N b. 1021 Y c. 1026 N d. 1030 16209: 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 N b. North N c. Northeast Y d. East 16218: At 0830, Watch Hill Point bears 343°T at 3.5 miles by radar. What was the speed made good since 0745?
N a. 5.4 knots N b. 5.8 knots N c. 6.7 knots Y d. 7.1 knots 16238: At 2045, buoy "GM" is at a range of 6.45 miles. Hogsland buoy "12" is at a range of 5.25 miles.
Your vessel's position is __________.
N a. LAT 37°22.8'N, LONG 75°30.8'W Y b. LAT 37°22.3'N, LONG 75°31.7'W N c. LAT 37°22.0'N, LONG 75°29.3'W N d. LAT 37°21.8'N, LONG 75°30.7'W 16256: What is the course per gyro compass from the anchorage to point A located 0.5 mile east of Cape Charles Lighted Bell Buoy 14?
N a. 180° Y b. 184° N c. 198° N d. 199.5° 16465: At 0600, you are entering the inbound leg of the traffic separation scheme at position LAT 36°59.2'N, LONG 75°47.6'
W. Course is 250°T. At 0605, Cape Henry Light bears 249°
T. At 0610, it bears 248°T. At 0625, it bears 247°T. Based on this, you know you are __________.
N a. meeting a current from dead ahead N b. running with a current from dead ahead Y c. being set to the north N d. being set to the south 16640: At 0445 you take the following lines of position:
Montauk Point Light 292°pgc
Block Island Southeast Point Light 024°pgc
What was the current encountered since your 0400 fix?
N a. 004°, 0.7 knot Y b. 004°, 0.9 knot N c. 184°, 0.7 knot N d. 184°, 0.9 knot 16715: From your 0600 position, what is the course per gyrocompass to leave Watch Hill Light abeam to starboard at 2.0 miles if a southerly wind is producing 3° of leeway?
Y a. 252°pgc N b. 256°pgc N c. 258°pgc N d. 262°pgc 16743: At 0040 you are south of Lewis Point when you receive word that the distress is terminated. You alter course to head for The Race. At 0052 you take the following relative bearings because the starboard gyro repeater is inoperative. Your heading at each bearing was 285°pgc. What is your 0052 position?
Race Rock Light 002°
Watch Hill Light 034°
Block Island North Light 122°
N a. LAT 41°08.8'N, LONG 71°41.4'W N b. LAT 41°09.0'N, LONG 71°42.3'W N c. LAT 41°09.0'N, LONG 71°41.1'W Y d. LAT 41°09.1'N, LONG 71°41.7'W