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.
67: The Gage at Red River Landing reads 22.2 feet. The LWRP for Red River is 10.6 feet. What is the water level in relation to the low water reference plane?
N a. 32.8 ft below N b. 32.8 ft above N c. 11.6 ft below Y d. 11.6 ft above 184: At 1930, your position is LAT 37°16.7'N, LONG 75°37.7'W. The depth of water is approximately __________.
N a. 40 feet (12.2 meters) Y b. 50 feet (15.2 meters) N c. 60 feet (18.3 meters) N d. 70 feet (23.2 meters) 283: At 1810, you sight a buoy on your starboard side labeled "19". This buoy marks __________.
Y a. the side of York Spit Channel N b. the visibility limit of the red sector of Cape Henry Light N c. the end of York Spit Channel N d. the junction of the York Spit and York River Entrance Channels 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 430: At 0820, you change course to 301°psc and reduce speed to 7.5 knots. At 0900, you take the following visual bearings:
Branford Reef Light 023°psc
New Haven Light 293°psc
Tweed Airport Aerobeacon 332°psc
Your 0900 position is __________.
N a. LAT 41°11.9'N, LONG 72°50.6'W Y b. LAT 41°12.1'N, LONG 72°48.6'W N c. LAT 41°12.3'N, LONG 72°47.7'W N d. LAT 41°12.5'N, LONG 72°44.3'W 545: At 0645, Watch Hill Point (left tangent) bears 314.5°T at 2.75 miles. What was the speed made good between 0600 and 0645?
N a. 11.4 knots Y b. 10.7 knots N c. 9.8 knots N d. 8.1 knots 632: The Memphis Gage reads 18.4 feet. The high point of your towboat is 48 feet above water. What is the vertical clearance as you pass under the Memphis Highway Bridge?
Y a. 46.4 feet N b. 53.8 feet N c. 66.4 feet N d. 75.4 feet 660: You are planning a voyage between Portland, LAT 46°05'N, LONG 124°00'W, and Korea via LAT 44°00'N, LONG 155°00'E. Which statement is TRUE? (Use gnomonic tracking chart WOXZC 5270)
N a. You can sail a great circle track between the two points. N b. The vertex of the great circle track is north of the Aleutian Islands. N c. Distance is measured in 60-mile segments using the length of a degree of latitude at the mid-latitude. Y d. You can steam on course 270°T, at latitude 52°N, between longitudes 149°W and 160°W in a composite sailing. 730: On 18 November , your 1750 zone time DR position is LONG 110°16.0'W. At that time you observe Polaris with a sextant altitude (hs) of 21°29.8'. The chronometer time of the sight is 00h 52m 43s, and the chronometer error is 02m 18s fast. The index error is 3.2' on the arc, and the height of eye is 49.5 feet. What is your latitude by Polaris?
Y a. 21°03.4'N N b. 21°13.4'N N c. 21°28.1'N N d. 21°35.1'N 750: On 28 October , at 1754 ZT, your vessel's DR position is LAT 28°30'N, LONG 63°24'W. At this time, you obtain a sextant altitude (hs) of Polaris reading 28°42.6', with an index error of 2.4' on the arc. Your chronometer reads 09h 50m 00s, and is 4m 14s slow. What is your latitude by Polaris, given a height of eye of 28 feet (8.5 meters)?
N a. 28°25.2'N N b. 28°30.6'N Y c. 28°34.9'N N d. 28°41.3'N 1189: On 7 February , your 0800 zone time DR position is LAT 22°16.0'N, LONG 92°26.0'W. Your vessel is on course 270°
T at a speed of 20.0 knots. What is the zone time of local apparent noon (LAN)?
N a. 1218 N b. 1222 N c. 1226 Y d. 1230 1203: You are keeping ZD +4 on your vessel. On 21 June ,
at 0906 DST, your position is LAT 30°48.0'N,
LONG 71°00.0'W. You are on a course of 167°T at 15.2 knots. At what time will local apparent noon (LAN) occur ZT at your vessel? You are keeping DST.
N a. 1145 N b. 1202 N c. 1218 Y d. 1245 1211: It is 15 July and you are keeping +7 zone time. You are on course 095°, speed 16 knots. Your 0800 DR position is LAT 25°39.4'N, LONG 129°46.2'W. What is the time of the second estimate of LAN by ship's clocks?
N a. 13h 40m 17s Y b. 13h 38m 26s N c. 12h 42m 20s N d. 12h 38m 20s 1246: Which of the following statements are TRUE?
N a. Oil well structures are listed in the Light List. N b. All aids to navigation with lights have lateral significance. Y c. On the Western Rivers, crossing marks may exhibit white lights. N d. None of the above. 1270: At 0500 zone time, on 21 August , your DR position is LAT 47°00'N, LONG 125°15'W. You are steering 000°T at a speed of 9.8 knots. What is the zone time of sunrise?
Y a. 0525 N b. 0529 N c. 0531 N d. 0535 1275: At 1730 zone time, on 3 March , your DR position is LAT 16°00'S, LONG 80°00'W. You are steering 000°T at a speed of 7.5 knots. What is the zone time of sunset?
N a. 1829 N b. 1834 Y c. 1843 N d. 1852 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 1414: What is the mile point of the Fulton Gage?
N a. 598 AHP N b. 632 AHP N c. 687 AHP Y d. 778 AHP 1673: On 17 April , your vessel's position is LAT 21°00'S, LONG 78°30'W, when an amplitude of the Sun is observed. The Sun's center is on the celestial horizon and bears 082.7° per standard magnetic compass. Variation in the area is 2.0°W. The chronometer reads 10h 59m 24s and is 01m 24s fast. What is the deviation of the compass?
Y a. 2.0°W N b. 3.0°W N c. 2.5°E N d. 3.0°E 1677: On 23 August , at 0604 ZT, in DR position LAT 16°42.3'S, LONG 28°19.3'W, you observed an amplitude of the Sun. The lower limb was a little above the horizon, and the Sun bore 076.0°pgc. At the time of the observation, the helmsman reported that he was heading 143°pgc and 167°
per standard magnetic compass. The variation in the area was 23°W. What were the gyro error and deviation for that heading?
N a. 1°W GE, 2°W DEV N b. 1°E GE, 1°E DEV N c. 2°W GE, 1°E DEV Y d. 2°E GE, 1°E DEV 1678: On 2 January , your vessel's 1948 zone time position is LAT 21°42'S, LONG 39°12'W, when an amplitude of the Sun is observed. The Sun's center is on the celestial horizon and bears 260° per standard magnetic compass. Variation in the area is 19°W. The chronometer reads 10h 44m 36s and is 03m 24s slow. What is the deviation of the standard magnetic compass?
Y a. 4.3°E N b. 4.3°W N c. 5.1°E N d. 5.1°W 2108: You alter course from your 0045 position to head for a point 0.5 mile north of Mattituck Breakwater Light "MI". If the visibility is 10 miles and you make good 9 knots, at approximately what time will you lose sight of Saybrook Breakwater Light?
N a. You have already lost sight at 0045 Y b. 0055 N c. 0120 N d. The light is visible all the way to Mattituck Inlet 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 2351: 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 2392: Which company does NOT have a marine facility in Rosedale harbor (mile 585 AHP)?
N a. Sanders Elevator Corp N b. Rosedale-Boliver County Port Commission Y c. T.L. James N d. Cives Steel Company 2581: At 1732, Bartlett Reef Lt bears 016°psc. Race Rock Lt bears 125.5°psc with a radar range of 4.4 miles. What is the set and drift?
N a. 116°, 0.4 knot N b. 116°, 1.0 knot N c. 296°, 0.4 knot Y d. 296°, 1.0 knot 2673: At 2221 your course is 222°pgc at a speed of 11.2 knots, when radar detects a buoy bearing 355° relative, at a range of 5.8 miles. The gyro error is 2°E. If you change course at 2226, what course should you steer to leave the buoy 1.0 mile abeam to port?
N a. 206°pgc N b. 210°pgc Y c. 228°pgc N d. 231°pgc 2858: Your vessel is on a course of 082°T at 19 knots. At 0255 a light bears 059.5°T, and at 0312 the light bears 037°T.
At what time and at what distance off will your vessel be when abeam of the light?
N a. 0333, 5.1 miles N b. 0321, 4.7 miles N c. 0327, 4.3 miles Y d. 0324, 3.8 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 3253: You have steamed 925 miles at 13.5 knots, and consumed 181 tons of fuel. If you have 259 tons of usable fuel remaining, how far can you steam at 16 knots?
N a. 795 miles Y b. 942 miles N c. 1117 miles N d. 1409 miles 10309: You are 3 miles due east of Montauk Point Light. What is the course per standard magnetic compass to LAT 41°00.0'N, LONG 71°30.0'W?
N a. 108°psc Y b. 122°psc N c. 124°psc N d. 130°psc 10507: At 0919 your position is LAT 37°00.0'N, LONG 75°30.0'W. You are on course 270°T at 10.5 knots. At 1020 your position is LAT 36°59.5'N, LONG 75°44.9'W. What was the current?
N a. 026° at 0.7 knot N b. 046° at 1.0 knot N c. 226° at 0.8 knot Y d. 246° at 1.4 knots 10602: At 1815 your GPS position is LAT 41°09.2'N, LONG 72°36.9'W. You are steering course 285° per standard magnetic compass at a speed of 16 knots. At 1909 you fix your position by plotting several compass bearings on nearby known fixed objects. These result in a position of LAT 41°08.5'N, LONG 72°53.7'W. What were your set and drift?
N a. 292°T at 1.8 knots N b. 243°T at 1.0 knot N c. 118°T at 1.9 knots Y d. 111°T at 2.1 knots 11509: At 1014 you depart the entrance to Lake Montauk with light "1" close aboard. Your course is 066° per standard magnetic compass, and the speed is 8.6 knots. At 1232 your position is LAT 41°20.0'N, LONG 71°40.0'W. What is the course made good?
N a. 036°T Y b. 040°T N c. 044°T N d. 047°T 12308: You sight North Dumpling Island Light in line with Latimer Reef Light (LAT 41°18.2'N, LONG 71°56.0'W) bearing 094° per standard magnetic compass. If your vessel was heading 207° per standard magnetic compass at the time, which of the following is TRUE?
Y a. The deviation table is correct for that heading. N b. The deviation by observation is 3°E. N c. The compass error is 12°W. N d. You should subtract 18° from all bearings of 094°. 12701: You are on course 298° per standard magnetic compass when you take the following bearings: Block Island Southeast Point Light - 058°psc Block Island Aero Beacon - 005°psc Montauk Point Light - 268°psc What is your position?
N a. LAT 41°08.3'N, LONG 71°35.0'W Y b. LAT 41°08.2'N, LONG 71°34.4'W N c. LAT 41°08.1'N, LONG 71°33.8'W N d. LAT 41°08.0'N, LONG 71°34.1'W 13004: At 1815 your position is LAT 41°05.5'N, LONG 72°47.3'W. You are making turns for 12.6 knots. What is your ETA at Plum Island Mid Channel Buoy PI (LAT 41°13.3'N, LONG 72°10.8'W)?
N a. 2019 N b. 2028 Y c. 2032 N d. 2038 14201: The draw of the Burlington Northern railroad bridge across the Columbia River at mile 328.0 shall be opened on signal, without prior notice, from __________.
N a. 6:00 am to 6:00 pm N b. 6:00 pm to 6:00 am N c. 8:00 pm to 4:00 am Y d. 8:00 am to 4:00 pm 15217: 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 at 0200 the next day, what is the speed to make good from your 2118 position to arrive at this time?
N a. 5.0 knots Y b. 5.5 knots N c. 6.0 knots N d. 6.5 knots 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 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) 15468: Which loran line of position will serve as a danger reading on the loran to keep you west of the submerged obstruction at LAT 37°24.2'N, LONG 76°03.7'W, after you leave York Spit Channel?
N a. Not less than 9960-Z-58622 N b. Not more than 9960-Y-41595 N c. Not less than 9960-Y-41595 Y d. Not less than 9960-X-27246 15542: At 2214 you receive a "Securite" call requesting you to remain at least 2 miles away from underwater work taking place at LAT 41°07.8'N, LONG 72°34.6'W. If you change course at 2220 and allow 3° leeway for southerly winds which course will you steer per gyrocompass to comply with this request? No allowance made for current.
N a. 079°pgc N b. 083°pgc N c. 086°pgc Y d. 089°pgc 15561: At what time will you cross the 60 foot curve if you make good 12 knots?
Y a. 0527 N b. 0534 N c. 0541 N d. 0544 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 15757: If you change course at 0610, what is the course to steer per gyro compass to a point where Little Gull Island Light bears 180°T at 0.7 mile (Point "A")?
N a. 072°pgc Y b. 076°pgc N c. 080°pgc N d. 084°pgc 15806: What type of bottom is found at Long Sand Shoal?
N a. Rocky N b. Muddy N c. Sandy Y d. Hard 15912: 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. 064° N b. 068° Y c. 095° N d. 099° 15913: At 0830, you wish to get the latest weather forecasts for the Falkner Island area. On what frequency would you set your FM radio for this information?
N a. 2181 kHz N b. 156.65 Mhz N c. 156.80 Mhz Y d. 162.40 Mhz 15942: At 1959 Watch Hill Point Light bears 030°T, Montauk Point Light bears 146°T, and Little Gull Light bears 283°T. What is the approximate fathometer reading?
Y a. 51 feet N b. 73 feet N c. 95 feet N d. 111 feet 15943: At 2038 Block Island North Light bears 065°T and Montauk Point Light bears 216°T
Which statement is TRUE?
N a. Your speed made good between your 1959 fix and 2038 fix is 11.0 knots. N b. Your course made good between your 1959 fix and 2038 fix is 102°T. N c. At your 2038 fix, your vessel is governed by the Inland Rules of the Road. Y d. Block Island Sound South Entrance Obstruction Lighted "BIS"
Buoy is located 3.6 miles off your starboard bow.15968: What was the speed made good from 1900 to 1925?
N a. 8.5 knots N b. 8.7 knots N c. 8.8 knots Y d. 9.1 knots 15969: What is the height above water of New Point Comfort Spit Light "2"?
N a. 6 feet (1.8 meters) N b. 15 feet (4.6 meters) Y c. 18 feet (5.5 meters) N d. 24 feet (7.3 meters) 16408: You estimate that you are making 9.3 knots over the ground.
At what time will you enter waters governed by the COLREGS?
N a. 0247 Y b. 0251 N c. 0255 N d. 0258