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.
77: You pass Morrison Towhead Light (mile 890.5 AHP) at 1723. What was your average speed since leaving Cairo?
N a. 8.8 mph Y b. 8.5 mph N c. 7.8 mph N d. 7.5 mph 148: You are turning for 8.2 mph and estimate the current at 1.5 mph. What is you speed over the ground?
Y a. 9.7 N b. 8.2 N c. 7.8 N d. 6.7 161: At 1923, on September 21, you pass Bixby Towhead Light (mile 873.7 AHP). What was your average speed since leaving Cairo?
N a. 12.1 mph Y b. 11.3 mph N c. 10.5 mph N d. 9.2 mph 301: You depart LAT 28°55.0'N, LONG 89°10.0'W, enroute to LAT 24°25.0'N, LONG 83°00.0'W. Determine the true course and distance by mid-latitude sailing?
N a. 418 miles, 122°T Y b. 427 miles, 129°T N c. 436 miles, 133°T N d. 442 miles, 122°T 317: Determine your 1915 position using the following information obtained at 1915.
Visual bearings
Cape Charles Light 107°pgc
Cape Henry Light 172°pgc
Radar Bearing and Range
Chesapeake Channel Tunnel South Light 189°pgc at 7.2 miles
N a. LAT 37°03.5'N, LONG 76°05.9'W N b. LAT 37°03.5'N, LONG 76°09.3'W Y c. LAT 37°09.3'N, LONG 76°03.1'W N d. LAT 37°09.8'N, LONG 76°04.1'W 487: At 0700, your gyro alarm sounds. What course should you steer by the standard magnetic compass in order to maintain your original heading of 078°T?
Y a. 095°psc N b. 090°psc N c. 080°psc N d. 062°psc 514: The shoreline along Rocky Point should give a good radar return because __________.
Y a. the shore is bluff and rocky N b. of offshore exposed rocks N c. submerged reefs cause prominent breakers N d. the lookout tower is marked with radar reflectors 533: You depart LAT 38°14'N, LONG 12°42'W, for LAT 38°14'N, LONG 46°09'W. What are the course and distance by parallel sailing?
N a. 090°T, 1576.5 miles N b. 090°T, 2879.0 miles Y c. 270°T, 1576.5 miles N d. 270°T, 2868.5 miles 615: Your vessel departs Yokohama from position LAT 35°27.0'N, LONG 139°39.0'E (ZD -9), at 1330 ZT, on 23 July, bound for Seattle at position LAT 47°36.0'N, LONG 122°22.0'W (ZD +8). The distance by great circle is 4,245 miles, and you estimate that you will average 13.6 knots. What is your estimated ZT of arrival?
N a. 0438, 4 August Y b. 2038, 4 August N c. 0438, 5 August N d. 1238, 5 August 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 734: On 11 March , your 1846 zone time DR position is LAT 25°05.7'N, LONG 124°29.0'W. At that time you observe Polaris with a sextant altitude (hs) of 25°59.1'. The chronometer time of the sight is 02h 44m 01s, and the chronometer error is 02m 15s slow. The index error is 3.9' on the arc, and the height of eye is 42.7 feet (13.0 meters). What is your latitude by Polaris?
N a. 25°14.2'N Y b. 25°17.9'N N c. 25°28.1'N N d. 26°15.2'N 1080: On 20 Feb. , your 0530 ZT DR position is LAT 24°15.0'N, LONG 137°33.0'W. You are on course 033°T at a speed of 18 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0600 running fix. NP-0010
N a. LAT 24°23.3'N, LONG 137°35.5'W N b. LAT 24°26.0'N, LONG 137°25.8'W Y c. LAT 24°27.5'N, LONG 137°31.8'W N d. LAT 24°30.1'N, LONG 137°24.5'W 1110: On 19 November , your 0300 zone time DR position is LAT 19°23'N, LONG 151°37'E. You are on course 293°T at a speed of 17 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0600 running fix. NP-0039
N a. LAT 19°38.5'N, LONG 150°41.6'E Y b. LAT 19°34.8'N, LONG 150°48.0'E N c. LAT 19°32.9'N, LONG 150°52.3'E N d. LAT 19°30.5'N, LONG 150°48.5'E 1166: At 1032 on 24 June, you pass Carolina Landing Light(mile 508.8 AHP). What has been the average current since 2350, 23 June, if you have been making turns for 9.0 mph?
N a. 8.5 mph N b. 5.7 mph N c. 1.5 mph Y d. 0.5 mph 1216: It is 8 March and you are keeping zone time -3. You are on course 104°T, speed 21 knots. Your 0830 DR position is LAT 25°35.0'S, LONG 66°34.0'E. What is the time of the second estimate of LAN by ship's clocks?
Y a. 10h 41m 26s N b. 11h 15m 34s N c. 11h 17m 32s N d. 11h 36m 54s 1234: What is the distance from the Amoco Docks at Baton Rouge, LA, to Pittsburgh, PA?
Y a. 1681.7 miles N b. 1575.3 miles N c. 981.7 miles N d. 727.9 miles 1235: You are turning for 10 mph and passing Hog Point, LA. (mile 297.5 AHP). Angola reports that the current at Red River Landing is 4.5 mph. Which statement is TRUE?
N a. The main channel lies on the south side of the island you see ahead. N b. You are making 14.5 mph over the ground. Y c. An underwater stone dike has been constructed 0.5 miles upstream of Miles Bar Towhead. N d. You would expect to find the more favorable current near the broken red line in the river. 1281: On 2 January , you are on a course of 094°T at a speed of 20 knots. At 0430 ZT, your DR position is LAT 24°12'N, LONG 71°24'W. Determine the zone time of sunrise.
Y a. 0627 N b. 0636 N c. 0644 N d. 0701 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 1689: What daymark will you see as you approach Warnicott Bar Lt. (mile 351.3 AHP)?
N a. Red diamond N b. Red triangle Y c. Green square N d. White square 1760: The area between Island 67 Upper Light (mile 623.1 AHP) and Sunflower Cut-off Foot Light (mile 624.8 AHP) is known as a __________.
N a. transit Y b. crossing N c. chute N d. slough 1807: As you approach Hole in the Wall Light (mile 373.4 AHP),
what type of daymark would you see on the light structure?
Y a. Green square N b. Green diamond N c. Red diamond N d. Red square 1877: On 2 October , your 1845 DR position is 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 63°29.1' bearing 237.5°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 0m 51s fast. What star did you observe?
Y a. Kappa Scorpii N b. Beta Ophiuchi N c. Alpha Arae N d. Beta Draconis 1958: Which daymark would you see as you approach Red Store Light (mile 269.5 AHP)?
Y a. Green square N b. Green triangle N c. Green diamond N d. Red square 2170: On 22 July , at 0720 ZT, in DR position LAT 20°38.2'N, LONG 87°16.0'W, you observe the Moon's lower limb. The sextant altitude (hs) is 38°32.6, and the chronometer reads 01h 18m 14s. The chronometer is 01m 28s slow. The index error is 3.1' off the arc, and the height of eye is 68 feet. What is the azimuth (Zn) and intercept (a) of this sight from the assumed position?
N a. Zn 291.4°, a 5.2' A N b. Zn 111.4°, a 8.7' A Y c. Zn 248.6°, a 5.0' T N d. Zn 068.6°, a 6.5' T 2402: You will enter waters governed by the International Rules when __________.
N a. you cross the territorial sea boundary line N b. enter the pilotage area N c. you cross the boundary of the contiguous zone Y d. Cape Henry Light bears 202°T 2532: At 0715, on March 9, you pass Knox Landing GagE C313.8 AHP) and estimate the current will average 3.5 mph for the remainder of the time on the Mississippi River. What is your ETA at the mouth of the Ohio River if you increase speed to turn for 10 mph?
N a. 0640, 11 March N b. 0554, 12 March Y c. 0943, 13 March N d. 1242, 13 March 2657: You are steering 349°T, and a light is picked up dead ahead at a distance of 17.2 miles at 2122. You change course to pass the light 4.5 miles off abeam to port. If you are making 19.5 knots, what is your ETA at the position 4.5 miles off the light?
N a. 2207 N b. 2210 Y c. 2213 N d. 2216 2855: Your vessel is on a course of 107°T at 16 knots. At 0403 a light bears 129.5°T, and at 0426 the light bears 152°T. At what time and at what distance off will your vessel be when abeam of the light?
N a. 0434, 3.2 miles Y b. 0442, 4.3 miles N c. 0434, 4.3 miles N d. 0442, 3.4 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 2873: Your vessel is on a course of 103°T at 14 knots. At 1918 a light bears 129.5°T, and at 1937 the light bears 148°T.
At what time and at what distance off will your vessel be when abeam of the light?
N a. 1947, 2.8 miles N b. 1950, 3.2 miles N c. 1953, 3.8 miles Y d. 1956, 4.4 miles 2892: You are steaming on a course of 114°T at 17 knots. At 1122 you observe a lighthouse bearing 077°T. At 1133 the lighthouse bears 051°T. What is your distance off at the second bearing?
N a. 3.3 miles N b. 3.9 miles Y c. 4.3 miles N d. 4.9 miles 3269: Your vessel arrives in port with sufficient fuel to steam 812 miles at 15 knots. If you are unable to take on bunkers, at what speed must you proceed to reach your next port, 928 miles distant?
N a. 13.6 knots Y b. 14.0 knots N c. 15.3 knots N d. 15.7 knots 3640: You desire to make good a true course of 223°. The variation is 2°E, magnetic compass deviation is 2°E, and gyrocompass error is 1°W. An east-southeast wind produces 3° leeway. What is the course to steer per standard magnetic compass to make the true course good?
N a. 213°psc Y b. 216°psc N c. 220°psc N d. 223°psc 10906: What correction should be applied to the charted depths of the Poquoson River at York Point at the PM low water on 18 December 1983?
N a. +1.9 feet N b. -0.1 feet Y c. -0.4 feet N d. No correction is necessary 11101: Great Salt Pond on Block Island is __________.
Y a. entered through a dredged cut N b. not accessible in easterly gales N c. available for vessels up to a maximum draft of 8 feet (2.4m) N d. not affected by the tide 13010: Your 0620 position is LAT 40°59.5'N, LONG 73°00.5'W. You are making turns for 8 knots. What is your ETA at LAT 41°08.0'N, LONG 72°44.8'W?
N a. 0748 N b. 0802 Y c. 0809 N d. 0814 13904: On the south and the east coasts of Block Island are circles with a dot in the center and labeled CUP. This is a __________.
N a. conspicuous object N b. steep depression in the surrounding hills that resembles a cup Y c. domed structure useful for navigation N d. calling-up-point used for traffic control 15115: If the visibility is 11 miles, what is the luminous range of New Point Comfort Spit Light "4"?
N a. 0.5 mile N b. 3.8 miles N c. 4.3 miles Y d. 5.0 miles 15119: What is the height above water of Davis Creek Channel Light "1"?
N a. 6 feet (1.8 meters) Y b. 15 feet (4.6 meters) N c. 17 feet (5.2 meters) N d. 24 feet (7.3 meters) 15158: At 1630, you reach point "A" and come right to 204°T. Your engine speed is 12 knots. Your 1715 position is LAT 37°09.8'N, LONG 75°37.4'W. The current was __________.
N a. 067°T at 1.1 knots Y b. 067°T at 1.5 knots N c. 247°T at 1.1 knots N d. 247°T at 1.6 knots 15420: You are entering Norfolk Harbor and have just passed Craney Island. Which chart should you use for your final approach into Norfolk Harbor?
N a. 12223 N b. 12238 N c. 12248 Y d. 12253 15609: From your 1715 fix, you steer 214°T at 12 knots. At 1800,
you take the following bearings:
Cape Charles Light bearing 296° true
Cape Henry light bearing 242° true
Your 1800 position is __________.
Y a. LAT 37°02.9'N, LONG 75°43.1'W N b. LAT 37°02.9'N, LONG 75°43.9'W N c. LAT 37°03.0'N, LONG 75°43.3'W N d. LAT 37°03.1'N, LONG 75°42.8'W 15622: What are the dimensions of the Old River Lock on the Lower Old River (304 AHP)?
Y a. 1190 x 75 feet N b. 1195 x 75 feet N c. 1195 x 84 feet N d. 1202 x 84 feet 15646: At 2229 the gyro fails. What is the course to steer per standard magnetic compass to make good 206°T, if you allow 3° leeway for southeasterly winds?
N a. 187° N b. 191° Y c. 217° N d. 220° 15917: At what approximate distance would you expect Bartlett Reef Light to break the horizon, if the visibility is 27 nautical miles?
N a. 5.9 nm N b. 6.9 nm N c. 12.0 nm Y d. 12.8 nm 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