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.
211: You decide to use the 9960-Y and 9960-W rates. At 1915,
you obtain the following readings:
9960-Y-43936.0
9960-W-14653.3
What is your 1915 position?
N a. LAT 41°13.0'N, LONG 71°54.1'W N b. LAT 41°13.0'N, LONG 71°53.9'W Y c. LAT 41°13.2'N, LONG 71°53.7'W N d. LAT 41°13.4'N, LONG 71°53.4'W 262: You are northwest of Port Jefferson Harbor steering 242° per standard magnetic compass. As you continue westward, you see that the Port Jefferson Range Front Light and Rear Light come into line. If the deviation table is correct, the bearing of the range should be __________.
Y a. 157°psc N b. 160°psc N c. 163°psc N d. 166°psc 357: If the visibility is 5 miles and you are in the red sector, at what distance off should you sight Cape Henry Light?
Y a. 09 miles N b. 11 miles N c. 13 miles N d. 15 miles 360: If you are making 8.3 knots over the ground, what is your ETA at the first turning point in York Spit Channel between buoys "29" and "30"?
Y a. 0522 N b. 0508 N c. 0456 N d. 0448 491: At 0748, you take the following bearings:
Watch Hill Point Light bearing 020.5° pgc
Race Point Light bearing 267.5° pgc
What is the approximate depth of water at this position?
N a. 104 feet Y b. 130 feet N c. 175 feet N d. 325 feet 493: At 0815, Montauk Pt. Light House is bearing 167°T, Shagwong Pt. has a radar range of 4.5 miles, and Cerberus Shoal "9" Buoy is bearing 284°T. If the engine is making turns for 10 knots, what was the set and drift of the current since 0748?
N a. Set 065°T, drift 1.1 knots N b. Set 065°T, drift 2.4 knots Y c. Set 245°T, drift 2.4 knots N d. Set 245°T, drift 1.1 knots 528: You depart LAT 38°12'S, LONG 12°06'W and steam 1543 miles on course 270°. What is the Longitude of arrival?
Y a. 44°49'W N b. 45°12'W N c. 45°37'W N d. 45°42'W 563: At 0705, the gyro loses power. At 0715, you are on course 092° per standard magnetic compass (psc) when you take the following bearings: Falkner Light bears 356°psc, Horton Point Light bears 123°psc, and Kelsey Point Breakwater Light bears 048°psc. What is the position of your 0715 fix?
N a. LAT 41°06.7'N, LONG 72°36.0'W Y b. LAT 41°07.0'N, LONG 72°36.2'W N c. LAT 41°07.2'N, LONG 72°36.4'W N d. LAT 41°07.4'N, LONG 72°36.4'W 605: At 0915 ZT, on 26 July , you depart Yokohama, LAT 35°27.0'N, LONG 139°39.0'E (ZD -9). You are bound for Seattle, LAT 47°36.0'N, LONG 122°22.0'W, and you estimate your speed of advance at 14 knots. The distance is 4,245 miles. What is your estimated ZT of arrival at Seattle?
Y a. 0728, 7 August N b. 1528, 7 August N c. 0028, 8 August N d. 1528, 8 August 748: On 7 May , you observe Polaris for latitude at 0303 ZT. Your DR position is LAT 56°35.4'N, LONG 05°38.9'W. The sextant altitude is 56°11.1'. The height of eye is 36', and the index error is 3.3' off the arc. What is the latitude at the time of the sight?
N a. 56°24.6'N N b. 56°32.6'N N c. 56°35.0'N Y d. 56°38.7'N 827: On 16 November , your 1200 ZT DR position is LAT 26°48.0'S, LONG 124°32.0'W. Your vessel is on course 078°T, speed 17.0 knots. You observe an ex-meridian of the Sun's lower limb. The sextant (hs) reads 81°41.3'. The index error is 1.5' off the arc, and your height of eye is 56 feet. The chronometer time of the observation is 08h 15m 32s, and the chronometer is 03m 06s fast. What is your latitude at meridian transit?
Y a. 26°42.6'S N b. 26°47.1'S N c. 26°49.5'S N d. 26°52.3'S 996: On 30 August your 0554 zone time (ZT) position was LAT 25°39.0'S, LONG 31°51.0'E. Your vessel was steaming on course 325°T at a speed of 15.0 knots. An observation of the Sun's lower limb was made at 0836 ZT. The chronometer read 06h 38m 36s and was fast 02m 24s. The observed altitude (Ho) was 30°49.2'. LAN occurred at 1157 ZT. The observed altitude (Ho) was 56°40.0'. What was the longitude of your 1157 ZT running fix?
N a. 30°59.8'E N b. 30°57.6'E N c. 30°55.9'E Y d. 30°52.5'E 1007: On 30 July , your 1030 ZT DR position is LAT 17°46'N, LONG 139°30'W. You are on course 129°T, speed 24 knots. Determine your 1200 position using the following observations of the Sun.
ZONE TIME GHA DECLINATION Ho
1220 138°25.0' N 18°22.3' 88°43.3'
1226 139°55.0' N 18°22.2' 88°24.0'
N a. LAT 17°24.0'N, LONG 138°59.8'W N b. LAT 17°21.6'N, LONG 138°56.2'W N c. LAT 17°18.7'N, LONG 139°07.6'W Y d. LAT 17°15.1'N, LONG 139°00.0'W 1204: On 25 April , your 0930 zone time position is LAT 28°35'S, LONG 82°30'W. Your vessel is on course 300°T at a speed of 20.0 knots. Determine the time of LAN.
Y a. 1131 N b. 1158 N c. 1211 N d. 1225 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 1304: At 1000, on May 11th, you are passing George Prince Lt. (mile 364.1 AHP) in Natchez, Mississippi and must send an ETA to the Monsanto Terminal in St. Louis (mile 178.0 UMR). Your engines are still turning for 8.5 mph and you estimate the current at 2.5 mph. What will be your arrival time in St. Louis?
N a. 1919 on 15 May N b. 2344 on 15 May N c. 1113 on 16 May Y d. 1757 on 16 May 1339: At 1300, 5 January, the river will be temporarily closed to navigation for six hours at mile 531.3 AHP due to repairs to a bridge. What minimum speed over the ground must you make from Natchez Gage in order not to be delayed?
N a. 5.7 mph Y b. 6.0 mph N c. 6.8 mph N d. 7.3 mph 1407: At 2350 hours on 23 June, you are at mile 610.5 AHP when you see about a mile ahead white lights on the water near the left bank. What might you see when you come abreast of these lights?
N a. Privately maintained buoys at a yacht club N b. Government buoys marking the Hurricane Point dikes Y c. Barges moored at the Dennis Landing Terminal N d. A pipeline discharging dredge spoil 1418: How far is it to the Hernando Desoto Bridge in Memphis, TN?
N a. 980.8 miles N b. 736.6 miles N c. 312.3 miles Y d. 218.1 miles 1424: You pass Springfield Bend Lt. (mile 244.8 AHP) at 1242, on 17 October, and estimate the current will average 2.5 mph for the remainder of your trip. What is your ETA at the mouth of the Ohio River if you are making turns for 10.5 mph?
N a. 1905, 19 October N b. 2122, 19 October Y c. 0519, 21 October N d. 0847, 21 October 1453: On 15 October , your 0325 zone time DR position is LAT 26°51.0'N, LONG 138°17.0'W. At that time, you observe Canopus bearing 167°pgc. The chronometer reads 00h 25m 36s, and the chronometer error is 00m 20s slow. The variation is 2°E. What is the gyro error?
Y a. 1.3°W N b. 3.2°W N c. 3.2°E N d. 4.1°W 1750: In addition to the Army Corps. of Engineers maps, data on bridge clearances may be found in the __________.
N a. Army Corps. of Engineers Regulations Y b. Light List N c. Waterways Journal N d. Channel Report 1882: On 2 October , your 1845 DR position was LAT 28°09.2'S, LONG 167°48.1'E. You observe a faint star through a hole in the clouds at a sextant altitude (hs) of 20°45.6' T, bearing 201.5°T. The index error is 1.3' off the arc, and the height of eye is 42 feet. The chronometer reads 07h 46m 19s and is 00m 51s fast. What star did you observe?
N a. Cor Caroli N b. Muhlifain Y c. Alpha Muscae N d. Beta Corvi 1910: On 22 February , your 1857 DR position is LAT 23°46.0'S, LONG 93°16.5'E. You observe an unidentified star bearing 126°T at an observed altitude (Ho) of 40°21.5'. The chronometer reads 01h 00m 35s and is 03m 25s fast. What star did you observe?
N a. Adhara N b. Miaplacidus N c. Avior Y d. Suhail 2151: On 16 June , 0612 zone time, morning stars were observed. The vessel's position was LAT 27°23.0'S, LONG 56°22.0'W. The vessel is steaming at 16.0 knots on a course of 212°T. A sextant observation of the Sun's lower limb is made at 0850 zone time. The chronometer reads 00h 53m 19s, and the sextant altitude is 22°58.6'. The index error is 2.0' off the arc, and the chronometer error is 02m 43s fast. Your height of eye is 61.0 feet. What is the azimuth (Zn) of this sight using the assumed position?
Y a. 044.3° N b. 052.6° N c. 136.1° N d. 148.4° 2155: On 17 May , at 0501 zone time, morning stars were observed, and the vessel's position was determined to be LAT 22°16.0'S, LONG 103°46.0'W. Your vessel is steaming at 24.0 knots on a course of 301°T. A sextant observation of the Sun's lower limb is made at 0845 zone time. The chronometer reads 03h 43m 32s, and the sextant altitude is 28°24.7'. The index error is 1.5' off the arc, and the chronometer error is 02m 02s slow. Your height of eye on the bridge is 85.5 feet. What is the azimuth (Zn) of this sight using the assumed position?
N a. 051.0°T Y b. 052.5°T N c. 054.2°T N d. 055.7°T 2161: On 28 April , your vessel's 0515 zone time position is LAT 23°26'S, LONG 95°30'E. At this time, the observed altitude (Ho) of the star Rigil Kentaurus is 24°51.4'. Your chronometer reads 11h 16m 36s and is 01m 18s fast. What is the intercept (a) based on the assumed position method?
N a. 30.9 miles N b. 32.3 miles N c. 33.1 miles Y d. 34.4 miles 2341: You have steamed 1175 miles at 19 knots, and consumed 257 tons of fuel. If you have to steam 1341 miles to complete the voyage, how many tons of fuel will be consumed while steaming at 18 knots?
N a. 293 tons Y b. 263 tons N c. 202 tons N d. 172 tons 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 2585: At 2000 you plot your position as: LAT 41°11'N, LONG 072°35'W. The set and drift is 095°T at 0.8 knot. What course must you steer, and what engine speed must you turn, in order to make good 255°T at 8.5 knots?
Y a. 257°T, 9.3 knots N b. 253°T, 9.3 knots N c. 257°T, 7.7 knots N d. 253°T, 7.7 knots 2654: You are steering 231°T, and a light is picked up dead ahead at a distance of 12.3 miles at 0338. You change course to pass the light 4 miles off abeam to starboard. If you are making 16.5 knots, what is your ETA at the position 4 miles off the light?
Y a. 0420 N b. 0423 N c. 0426 N d. 0429 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 3638: You desire to make good a true course of 007°. The variation is 5°E, magnetic compass deviation is 3°W, and gyrocompass error is 2°E. A southwest by west wind produces a 2° leeway. What is the course to steer per standard magnetic compass to make the true course good?
Y a. 003°psc N b. 005°psc N c. 007°psc N d. 009°psc 10209: Your GPS position is LAT 41°08.5'N, LONG 72°28.8'W. What course must you steer per standard magnetic compass (psc) to leave Cornfield Lighted Whistle Buoy "CF" 0.5 mile abeam to port?
N a. 064°psc Y b. 077°psc N c. 088°psc N d. 092°psc 11402: At 1018 your position is LAT 41°14.4'N, LONG 72°07.2'W. At 1036 your vessels position is LAT 41°13.1'N, LONG 72°16.1'W. What was your true course and speed made good?
Y a. 259° at 22.6 knots N b. 245° at 23.1 knots N c. 079° at 22.8 knots N d. 065° at 25.5 knots 13509: Sounding contours in unshaded water areas are at what interval?
N a. 10 foot up to 100 ft depths then at 30 foot intervals Y b. 30 foot intervals N c. 10 fathom intervals N d. The interval will vary to ensure any major underwater hazard is highlighted. 13708: A note on the chart indicates that currents in excess of how many knots can be expected in the vicinity of the Chesapeake Bay Bridge and Tunnel?
Y a. 3.00 knots N b. 2.20 knots N c. 1.75 knots N d. 1.50 knots 13708: A note on the chart indicates that currents in excess of how many knots can be expected in the vicinity of the Chesapeake Bay Bridge and Tunnel?
Y a. 3.00 knots N b. 2.20 knots N c. 1.75 knots N d. 1.50 knots 13903: Your position is LAT 41°12.4'N, LONG 71°53.2'W. You are on course 163°T enroute to sea. You can ensure that you will clear Montauk Point if your loran reading is always __________.
N a. more than 9960-X-25990 Y b. less than 9960-W-14665 N c. more than 9960-Y-43870 N d. All of the above 15118: What was the speed made good from 1845 to 1930?
N a. 6.2 knots N b. 7.5 knots Y c. 8.3 knots N d. 9.4 knots 15170: From your 2123 position, you are approximately 42 miles from Crisfield, MD. If you are making good a speed of 11 knots, at what time should you arrive at Crisfield, MD?
N a. 2359 N b. 0037 Y c. 0112 N d. 0149 15208: At 1750, your position is LAT 37°14.5'N, LONG 76°22.9'W. What was the course made good between 1730 and 1750?
N a. 072°T N b. 075°T Y c. 078°T N d. 080°T 15710: From your 0830 position, you wish to make good 097°T. There is no current, but a southerly wind is producing 3°
leeway. What course should you steer per standard magnetic compass in order to make good your true course?
N a. 118°psc Y b. 115°psc N c. 112°psc N d. 109°psc 15715: Little Gull Island Light is __________.
N a. lighted only during daytime when the sound signal is in operation N b. maintained only from May 1 to Oct 1 Y c. lighted throughout 24 hours N d. obscured by trees from 253° to 352° 15945: At 2107 Southeast Point Light bears 062°T, and at 2112 this light bears 038°T. What is your distance off Southeast Point Light at 2112? (assume no set and drift)
N a. 2.1 miles Y b. 2.5 miles N c. 2.9 miles N d. 3.3 miles 16063: At 2013, you sight Thimble Shoal Light in line with Old Point Comfort Light bearing 258°pgc. At the time of the bearing, the vessel was headed 142°pgc and 151°psc. Based on this, you __________.
N a. know the gyro error is 2°E N b. should adjust the magnetic compass N c. verified that the variation is 10°W Y d. have checked the deviation table for a magnetic heading of 150° 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 16314: At 0820, you take the following bearings:
Branford Reef Light bearing 307° true
Falkner Island Light bearing 052° true
What are the set and drift since 0730?
N a. Set 052°T, drift 1.1 knots N b. Set 052°T, drift 1.3 knots N c. Set 236°T, drift 1.1 knot Y d. Set 236°T, drift 1.3 knots 16418: At 2100, you set course of 000°T, speed 10 knots from LAT 41°07.0'N, LONG 71°30.0'W. Visibility is 5.5 n.m. What is the earliest time you can expect to sight Point Judith Light? (Use charted range of 20 miles as nominal range.)
N a. The light is visible at 2100. Y b. 2114 N c. 2123 N d. 2131 16419: You estimate the current to be 160°T at 1.2 knots. What should your course and speed be in order to make good 000°
T at 10 knots?
Y a. 358°T at 11.1 knots N b. 358°T at 09.8 knots N c. 002°T at 11.2 knots N d. 002°T at 09.9 knots 16712: The two wavy magenta lines running to Green Hill Point represent __________.
N a. recommended approaches to Green Hill Point N b. the red sector of Point Judith Light N c. prohibited fishing areas Y d. submarine cables