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.
151: What is the distance from the Memphis Gage to the Redneb Services Dock in New Orleans, LA.
N a. 460 miles N b. 503 miles N c. 588 miles Y d. 633 miles 256: At 0209, your position is LAT 41°01.8'N, LONG 72°40.8'W. What course should you steer per standard magnetic compass to make good 278° magnetic? (assume no set and drift)
N a. 262.0°psc N b. 265.0°psc N c. 270.5°psc Y d. 275.5°psc 269: If there is no current, what is the course per standard magnetic compass from your 0802 fix to the position 1.1 miles north of Falkner Island Light?
N a. 099° Y b. 095° N c. 068° N d. 064° 309: A vessel at LAT 14°10'N, LONG 61°00'W is to proceed to LAT 10°00'N, LONG 53°23'W. What is the course and distance by mid-latitude sailing?
N a. 117.3°T, 503.0 miles N b. 117.9°T, 504.0 miles N c. 118.6°T, 508.0 miles Y d. 119.2°T, 512.0 miles 316: From your 1830 fix, you continue south on a course of 150°T turning RPMs for 6 knots. You encounter a flood current in the direction of 330°T at 2 knots. Adjusting your course for set and drift, which course would you steer to make good a course of 150°T while turning RPMs for 6 knots?
N a. 162°T N b. 158°T Y c. 150°T N d. 144°T 349: From your 0430 position, what is the course per standard magnetic compass to a position where Twenty-eight foot Shoal lighted buoy "TE" is abeam to port at 1 mile?
Y a. 101.5° N b. 098.0° N c. 086.0° N d. 082.5° 466: Determine the great circle distance and initial course from LAT 25°50.0'N, LONG 77°00.0'W to LAT 35°56.0'N, LONG 06°15.0'W.
N a. 3470 miles, 298°T N b. 3518 miles, 028°T Y c. 3616 miles, 062°T N d. 3718 miles, 118°T 500: Your position is LAT 40°59.0'N, LONG 73°06.2'W. What is the course per standard magnetic compass to New Haven Harbor Lighted Whistle Buoy "NH"?
Y a. 052° N b. 049° N c. 046° N d. 035° 505: At 0109 you get underway, and at 0112 you take the following bearings:
Branford Reef Light bearing 051° true
Stratford Point Light bearing 258° true
What is your 0112 position?
N a. LAT 41°11.0'N, LONG 72°51.0'W Y b. LAT 41°11.4'N, LONG 72°51.3'W N c. LAT 41°11.6'N, LONG 72°51.6'W N d. LAT 41°11.8'N, LONG 72°51.8'W 506: At 0112, what is the approximate depth under the keel?
N a. 57 feet (17.3 meters) N b. 51 feet (15.5 meters) N c. 47 feet (14.2 meters) Y d. 38 feet (11.5 meters) 525: At 0600 you take the following bearings:
Point Judith Light bearing 063° pgc
Block Island North Reef Light bearing 144° pgc
What is your 0600 position?
Y a. LAT 41°18.3'N, LONG 71°38.7'W N b. LAT 41°18.4'N, LONG 71°38.0'W N c. LAT 41°18.5'N, LONG 72°38.1'W N d. LAT 41°18.7'N, LONG 71°38.9'W 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 732: On 3 January , your 1759 zone time DR position is LONG 60°53.2'W. At that time you observe Polaris with a sextant altitude (hs) of 22°55.8'. The chronometer time of the sight is 09h 57m 10s, and the chronometer error is 02m 26s slow. The index error is 2.9' off the arc, and the height of eye is 52.5 feet. What is your latitude by Polaris?
N a. 21°35.2'N N b. 21°52.5'N Y c. 22°03.6'N N d. 22°22.6'N 806: On 15 November , your 0913 zone time fix gives you a position of LAT 22°30.0'N, LONG 68°28.0'W. Your vessel is on course 164°T, and your speed is 13.5 knots. Local apparent noon (LAN) occurs at 1118 zone time at which time meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 49°46.0'. What is the calculated latitude at LAN?
N a. 21°36.1'N N b. 21°37.7'N Y c. 21°39.3'N N d. 21°40.9'N 1119: At 2142, on January 3, you pass Sebastapol Light (mile 283.3 AHP). At 0137, January 4, you pass Fort Adams Light(311.4 AHP). You have been turning for 9.0 mph. What was the current?
N a. 4.2 mph N b. 3.3 mph N c. 2.7 mph Y d. 1.8 mph 1130: At 1923, on September 21, you pass Bixby Towhead Light (mile 873.7 AHP). What was your average speed since leaving Cairo?
N a. 9.2 mph N b. 8.8 mph Y c. 8.5 mph N d. 7.2 mph 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 1228: 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?
Y a. 63.1 feet N b. 65.3 feet N c. 67.2 feet N d. 122.0 feet 1502: On May 20 , you are keeping ZD +4, and your 2300 (ZD +4) DR position is LAT 42°07'N, LONG 81°02'W. At that time, you observe Polaris bearing 012°psc. The chronometer time of the observation is 03h 02m 23s, and the chronometer is 1m 17s fast. The variation is 9.5°W. What is the deviation of the magnetic compass?
Y a. 2.7°W N b. 12.2°W N c. 6.8°E N d. 12.2°E 1690: The locations of locks and dams can be found in the __________.
N a. Army Corps. of Engineers maps Y b. Light List N c. Local Notice to Mariners N d. Channel Report 1803: As you approach Shreves cut-off you see Red River Landing Gage (mile 302.4 AHP) which reads 4.2 feet. The Low Water Reference Plane (LWRP) is 10.6 feet. Which of the following statements is TRUE?
N a. This reading is 6.4 feet above the Low Water Reference Plane. N b. A vessel drawing 8 ft would be able to pass over the sill at Old River Lock Y c. This reading is 6.4 feet below the Low Water Reference Plane. N d. A vessel drawing 7 ft. would be able to pass through the locks at Lower Old River. 1831: You pass Warnicott Bar Lt. at 1146, 24 May. What is your ETA off the Mhoon Landing Gage if you average 6.5 mph?
N a. 0152, 26 May N b. 0426, 26 May Y c. 1528, 26 May N d. 0909, 27 May 2012: On 24 March , your vessel is enroute from Cadiz to Norfolk. Evening twilight will occur at 1830 zone time, and your vessel's DR position will be LAT 35°06'N, LONG 60°48'
W. Considering their azimuth, altitude, and magnitude,
which group of stars is best suited for plotting a star fix at star time?
N a. Adhara, Rigel, Suhail N b. Regulus, Denebola, Alkaid N c. Adhara, Procyon, Alphard Y d. Sirius, Dubhe, Mirfak 2163: On 1 April , at 0515 zone time, morning stars were observed, and the vessel's position was determined to be LAT 27°05.0'N, LONG 16°30.0'W. Your vessel is steaming at 19.0 knots on a course of 022°T. A sextant observation of the Sun's lower limb is made at 0930 zone time. The chronometer reads 10h 28m 25s, and the sextant altitude is 46°20.3'. The index error is 4.5' off the arc, and the chronometer error is 02m 15s slow. Your height of eye on the bridge is 57.0 feet. What is the azimuth (Zn) of this sight using the assumed position?
N a. 121.6°T N b. 117.9°T Y c. 115.0°T N d. 112.2°T 2320: The highest point on your towboat is 48 feet above the water, and the Memphis Gage reads +7.5 feet. What is the vertical clearance when you pass under the Hernando Desoto Bridge in Memphis?
N a. 48.0 feet Y b. 53.2 feet N c. 68.2 feet N d. 116.0 feet 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) 2500: You are underway and intend to make good a course of 227°T. You experience a current with a set and drift of 350°T at 2.1 knots, and a northwest wind produces a leeway of 5°. You adjust your course to compensate for the current and leeway, while maintaining an engine speed of 11 knots. What will be your speed made good over your intended course of 227°T?
N a. 18.5 knots N b. 18.1 knots N c. 17.6 knots Y d. 17.2 knots 2707: You are underway on course 128°T at a speed of 17.6 knots. You sight a daymark bearing 126°T at a radar range of 4.3 miles at 1649. If you change course at 1654, what is the course to steer to leave the daymark abeam to starboard at 0.5 mile?
Y a. 113°T N b. 116°T N c. 119°T N d. 136°T 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 3632: You desire to make good a true course of 157°. The variation is 15°E, magnetic compass deviation is 9°W, and gyrocompass error is 3°E. A southwesterly wind produces a 2° leeway. What is the course to steer per standard magnetic compass to make the true course good?
N a. 145°psc N b. 147°psc N c. 150°psc Y d. 153°psc 10907: What is the time (DST ZD +4) of the AM high tide at York Point, Poquoson River on 8 September 1983?
N a. 0955 Y b. 1048 N c. 1055 N d. 1102 11306: At 1919 your position is LAT 37°00.0'N, LONG 75°30.0'W. At 1950 your position is LAT 36°59.5'N, LONG 75°37.0'W. What is the speed made good?
N a. 5.6 knots N b. 8.2 knots N c. 9.1 knots Y d. 10.9 knots 11707: Your position is LAT 37°00.0'N, LONG 75°30.0'W. What is the course to steer per standard magnetic compass to arrive at LAT 36°59.0'N, LONG 75°48.5'W, if you are turning for 7.8 knots, the current is 139°T at 1.3 knots, and a northwesterly wind is causing 3° of leeway?
N a. 290.0°psc Y b. 286.0°psc N c. 283.5°psc N d. 280.5°psc 12208: You sight Stratford Pt. Light in line with the Igor I. Sikorsky Airport Aero Beacon bearing 319° per standard magnetic compass. What is the compass error?
N a. 4°E N b. 10°W N c. 14°E Y d. 18°W 12301: You are on course 055° per standard magnetic compass when you sight Block Island Southeast Point Light in line with the Block Island Aero Beacon bearing 319° per standard magnetic compass. Based on this you __________.
N a. should use 4°W deviation on true courses of 040° N b. know the compass error is 19°W Y c. know the deviation table is correct for that heading N d. should apply 4°W deviation to all bearings 12708: You are on course 302° per standard magnetic compass when you take the following bearings: Little Gull Island Light 283°psc Race Rock Light 311°psc Latimer Reef Light 027°psc What is your position?
N a. LAT 41°12.2'N, LONG 71°57.6'W N b. LAT 41°12.4'N, LONG 71°57.4'W N c. LAT 41°12.4'N, LONG 71°57.9'W Y d. LAT 41°12.6'N, LONG 71°57.6'W 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 15240: At 1130, Horton Point Light bears 172° true at a range of 3.45nm
The fathometer reads 81 ft. Your position is __________.
N a. north of your intended track line N b. 41°09.4'N, 72°22.6'W N c. three miles southeast of Six Mile Reef Buoy "8A" Y d. 41°08.5'N, 72°27.3'W 15261: You make good 097°T from your 0830 fix. With a westerly current of 1.2 knots, what engine speed will you have to turn for from your 0830 position in order to arrive abeam of Six Mile Reef Buoy "8C" at 1030?
N a. 9.7 knots Y b. 10.5 knots N c. 10.9 knots N d. 12.1 knots 15362: The south shore of Long Island Sound near your position is __________.
N a. marked by gradual shoaling N b. low and marshy N c. backed by marshes and wooded uplands Y d. bluff and rocky 15429: What is the vertical clearance of the Vicksburg Highway 80 Bridge when the river level is the same as the Low Water Reference Plane? The low water reference plane (LWRP) for Vicksburg, MS. is 0.1.
N a. 128.3 ft N b. 125.6 ft N c. 119.5 ft Y d. 116.1 ft 15658: What course should you steer by the standard magnetic compass in order to maintain a heading of 081°pgc?
N a. 062°psc N b. 080°psc N c. 090°psc Y d. 095°psc 15768: At 0830, Watch Hill Point bears 343°T at 3.5 miles by radar. What was the speed made good since 0745?
Y a. 7.1 knots N b. 6.7 knots N c. 5.8 knots N d. 5.4 knots 15829: A stretch where the channel changes from one side of the river to the other is called a __________.
N a. passing N b. transit N c. transfer Y d. crossing 16007: If the visibility is 11 miles, what is the earliest time you can expect to see New Haven Light?
N a. The light is visible at 0352. N b. 0414 Y c. 0443 N d. You will not sight the light. 16012: If you change course at 0420, what is the course to make good to leave Twenty Eight Foot Shoal Lighted Buoy abeam to port at 1 mile?
N a. 079°T N b. 082°T Y c. 084°T N d. 086°T 16039: From your 0820 position you change course to your rendezvous position, one mile due south of buoy "NH", speed 14.5 knots. You estimate the current to be 260°T at 0.5 knot. The wind is northwesterly at 20 knots and you estimate 2° leeway. What is your course per gyrocompass (pgc) to the rendezvous position, if you correct your heading for current and leeway?
N a. 039° N b. 041° N c. 043° Y d. 045° 16056: At 1730, your position is LAT 37°13.9'N, LONG 76°26.4'W. What is your distance off Tue Marshes Light?
N a. 2.2 miles Y b. 2.6 miles N c. 3.0 miles N d. 3.4 miles 16058: At 1750, your position is LAT 37°14.5'N, LONG 76°22.9'W. What was the speed made good between 1730 and 1750?
N a. 7.5 knots N b. 7.8 knots N c. 8.1 knots Y d. 8.4 knots 16113: After you enter Thimble Shoal Channel, you will alter course to pass between Trestle "A" and "B". Which channel should you use?
N a. Thimble Shoal Main Channel or the South Auxiliary Channel N b. Any of the channels but keep to the right hand side Y c. The South Auxiliary Channel N d. Thimble Shoal Main Channel 16113: After you enter Thimble Shoal Channel, you will alter course to pass between Trestle "A" and "B". Which channel should you use?
N a. Thimble Shoal Main Channel or the South Auxiliary Channel N b. Any of the channels but keep to the right hand side Y c. The South Auxiliary Channel N d. Thimble Shoal Main Channel 16406: At 0227, you take the following radar ranges and bearings:
Bartlett Reef Light 359°T at 2.4 miles
Race Rock Light 083°T at 4.1 miles
What is your 0227 position?
Y a. LAT 41°14.1'N, LONG 72°08.2'W N b. LAT 41°14.2'N, LONG 72°08.4'W N c. LAT 41°14.0'N, LONG 72°08.5'W N d. LAT 41°14.3'N, LONG 72°08.5'W 16520: Which chart should you use to enter Great Salt Pond?
N a. 13214 N b. 13205 Y c. 13217 N d. 13207