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.
52: You are downbound when you observe on your Mississippi River map a white square with a number inside located on either bank. This indicates __________.
Y a. a facilities display number N b. a river mile marker N c. a daybeacon N d. a river gage 94: You have orders to drop off the empties at the fleeting area in Cairo and add five loaded barges to your tow. If you are turning for 8 mph and estimate the current at 0.5 mph, what is your ETA at Cairo?
N a. 1928, 11 Aug Y b. 1614, 11 Aug N c. 1327, 11 Aug N d. 2352, 10 Aug 103: You are approaching the Old River Control Structure (mile 314.5 AHP). The structure is in operation. Which of the following statements is TRUE?
N a. The maximum speeds permitted when passing the channel are 10 mph downbound and 7.5 mph upbound. N b. Tows must be no more than 110 feet wide when passing the inflow channel. Y c. You should navigate as close to the left descending bank of the Mississippi River as safety permits. N d. Tow length should not exceed 850 feet when passing the inflow channel. 259: The south coast of Long Island Sound between Mattituck Inlet and Port Jefferson is __________.
N a. composed of high rocky bluffs N b. a high, flat plateau with sheer cliffs N c. low and marshy with isolated beaches Y d. fringed by rocky shoals 320: At 2150, your position is LAT 36°57.2'N, LONG 76°01.3'W. In this position on the chart, you note a light magenta line running in a direction of 030°T. This line indicates the limits of __________.
Y a. a pilotage area N b. a precautionary area N c. the Cape Henry Light red sector N d. chart 12222 342: 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. Y b. 0443 N c. 0414 N d. You will not sight the light. 455: Determine the great circle distance and initial course from LAT 24°52.0'N, LONG 78°27.0'W to LAT 47°19.0'N, LONG 06°42.0'W.
Y a. 3593 miles, 048.1°T N b. 3457 miles, 053.3°T N c. 3389 miles, 042.4°T N d. 3367 miles, 045.0°T 468: Determine the great circle initial course from LAT 07°05.0'N, LONG 81°45.0'W to LAT 21°15.0'N, LONG 157°40.0'W.
N a. 128°T N b. 217°T Y c. 290°T N d. 326°T 547: At 0705, you change course to head for The Race. You wish to leave Race Rock Light bearing due north at 0.4 mile. If the current is 100°T, at 2.8 knots, and you are turning for 12.0 knots, what course (pgc) should you steer?
N a. 267°pgc Y b. 263°pgc N c. 255°pgc N d. 250°pgc 678: Using gnomonic tracking chart WOXZC 5270, determine which of the following statements about a voyage from Valdez, AK, to Hilo, HI, is TRUE.
Y a. A great circle track is not significantly shorter than a rhumb line track. N b. You will cross the Northern Hemisphere vertex where the track line crosses LAT 45°N. N c. Distance is measured by using the length of a degree of longitude at the mid-latitude line. N d. When plotted on a Mercator chart, the track line will be convex to San Francisco. 684: At 1814, on 11 September, you pass under the Greenville Highway Bridge (mile 531.3 AHP). What speed must you average to arrive at Jimmy Hawken Light (mile 663.5 AHP) at 0930 the following day?
N a. 9.7 mph Y b. 8.7 mph N c. 6.3 mph N d. 5.6 mph 1124: The Vicksburg Gage reads 31.9 feet. The high point on your towboat is 43 feet above the water. What is the vertical clearance as you pass under the Vicksburg Highway 80 Bridge?
N a. 36.2 feet Y b. 41.4 feet N c. 58.0 feet N d. 84.3 feet 1146: The Linwood Bend revetment on the LMR extends from mile __________.
N a. 828.1-823.1 RDB N b. 831.7-829.4 RDB N c. 845.4-842.5 LDB Y d. 841.3-838.7 LDB 1176: On 24 January , your 0700 zone time DR position is LAT 22°25.0'N, LONG 46°10.0'W. Your vessel is on course 110°T at a speed of 12.0 knots. What is the zone time of local apparent noon (LAN)?
N a. 1203 N b. 1208 Y c. 1212 N d. 1215 1190: On 12 February , your 0930 zone time DR position is LAT 25°20.0'N, LONG 30°40.0'W. Your vessel is on course 135°
T at a speed of 11.2 knots. What is the zone time of local apparent noon (LAN)?
N a. 1210 Y b. 1215 N c. 1220 N d. 1224 1205: On 25 April , your 1130 DR position is LAT 24°50.0'N, LONG 61°25.0'W. Your vessel is on a course of 300°T at a speed of 16.0 knots. Determine the zone time of (LAN) for your vessel.
N a. 1154 N b. 1156 N c. 1202 Y d. 1204 1264: On 17 November , your 1530 ZT DR position is LAT 27°13.0'S, LONG 153°21.0'W. You are on course 261°T at a speed of 14 knots. What will be the ZT of sunset at your vessel?
N a. 1813 N b. 1828 N c. 1834 Y d. 1845 1564: As you approach Dean Island Light (mile 754.8 AHP), which type of daymark will be observed at the light?
N a. Green triangle N b. Red and green banded square N c. Green square daymark Y d. Diamond-shaped green daymark 1668: On 20 June , your vessel's 1955 ZT DR position is LAT 52°38.9'N, LONG 03°42.7'E, when an amplitude of the Sun is observed. The Sun's center is on the visible horizon and bears 311° per gyrocompass. Variation in the area is 6°W. At the time of the observation, the helmsman noted that he was heading 352° per gyrocompass and 358° per steering compass. What is the gyro error and deviation for that heading?
N a. 1.3°W GE, 1.3°E DEV N b. 0.0° GE, 0.0° DEV N c. 1.3°W GE, 1.3°W DEV Y d. 1.3°E GE, 1.3°E DEV 1738: Which of the following statements regarding aids to navigation shown in the Corps. of Engineers map book is TRUE?
Y a. Buoys should always be given as wide a berth in passing as possible. N b. The U.S. Army Corps.. of Engineers is responsible for placing and maintaining all aids to navigation. N c. Buoy positions as shown on the chart are exact. N d. Lights and daymarks are always shown in their exact location. 1772: What is your ETA at the Fulton Gage?
N a. 1405, 12 Sept N b. 1052, 12 Sept N c. 0828, 12 Sept Y d. 0204, 12 Sept 1852: On 26 November , at 0535 ZT, while taking sights for a morning fix, you observe an unidentified planet bearing 074°T at an observed altitude (Ho) of 38°29.8'. Your DR position is LAT 27°18.9'S, LONG 30°18.4'E. The chronometer time of the sight is 03h 33m 16s, and the chronometer is 01m 48s slow. What planet did you observe?
Y a. Saturn N b. Jupiter N c. Mars N d. Venus 1893: On 22 July , your 0442 DR position is LAT 26°35.6'N, LONG 22°16.7'W. You observe an unidentified star bearing 104°T at an observed altitude (Ho) of 9°55.7'. The chronometer reads 05h 39m 03s, and is 03m 14s slow. What star did you observe?
N a. Hamal Y b. Rigel N c. Menkar N d. Acamar 2008: On 24 July , your 1912 zone time DR position is LAT 24°28.0'N, LONG 73°46.5'W. Considering their magnitude, azimuth, and altitude, which group includes the three stars best suited for a fix at star time?
N a. Fomalhaut, Rigel, Pollux N b. Arcturus, Acrux, Hadar Y c. Spica, Altair, Alioth N d. Vega, Deneb, Regulus 2121: At 1337 ZT, on July 17, , in DR position LAT 30° 56.8' S, LONG 039° 36.5' W, you observe an amplitude of the Moon. The upper limb of the moon is on the visible horizon, bearing 263.0°psc. The variation is 20°W. What is the deviation?
N a. 2.6°E N b. 2.6°W Y c. 3.6°E N d. 3.6°W 2294: You are passing Eastwood Lt. (mile 849.3 AHP) and the map indicates that Bunge Grain facility would be located at the square with number __________.
N a. 4 N b. 6 N c. 8 Y d. 10 2651: You are steering 246°T, and a light is picked up dead ahead at a distance of 14 miles at 1037. You change course to pass the light 2.5 miles off abeam to port. If you are making 12 knots, what is your ETA at the position 2.5 miles off the light?
N a. 1143 Y b. 1146 N c. 1149 N d. 1152 2783: 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 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 3462: You are underway on course 160°T at 10 knots. The current is 210°T at 0.9 knots. What is the course made good?
N a. 156°T N b. 160°T Y c. 164°T N d. 169°T 4007: You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2°E. The variation is 8°W. Find the deviation on a gyro heading of 166°.
HEADING HEADING HEADING
PSC PGC PSC PGC PSC PGC
358.5° - 350° 122.5° - 110° 239.5° - 230°
030.5° - 020° 152.0° - 140° 269.0° - 260°
061.5° - 050° 181.0° - 170° 298.0° - 290°
092.0° - 080° 210.0° - 200° 327.5° - 320°
Y a. 1.0°W N b. 1.0°E N c. 0.5°W N d. 0.5°E 10107: What is the first course per standard magnetic compass (psc) in the outbound southeasterly traffic lane of the Chesapeake Bay entrance traffic separation scheme?
N a. 133°psc N b. 138°psc N c. 143°psc Y d. 148°psc 10705: At 0726 you depart Lake Montauk with light 1 close aboard and set course 013.5° per standard magnetic compass at 7.6 knots. At 0812 your GPS position is LAT 41°10.0'N, LONG 71°55.9'W. What is the current?
N a. 151°T at 1.0 knot Y b. 164°T at 0.7 knot N c. 334°T at 1.1 knots N d. 321°T at 0.8 knot 11011: According to the U.S. Coast Pilot, what is the depth of the channel between State Pier No. 1 and the U.S. Navy Submarine Base in New London Harbor?
N a. 40 feet (12.1 meters) N b. 38 feet (11.5 meters) Y c. 36 feet (10.9 meters) N d. 34 feet (10.3 meters) 11406: At 2021 your position is LAT 41°09.7'N, LONG 72°59.8'W. At 2057 your position is LAT 41°00.5'N, LONG 72°49.5'W. What are your true course and speed made good?
Y a. 140° at 20 knots N b. 145° at 18 knots N c. 316° at 19 knots N d. 320° at 17 knots 12600: You are on course 243° per standard magnetic compass when you take the following bearings: Falkner Island Light 342°psc Mattituck Inlet Light 207°psc Horton Point Light 112°psc What is your position?
N a. LAT 41°05.9'N, LONG 72°32.7'W N b. LAT 41°05.7'N, LONG 72°31.8'W Y c. LAT 41°05.5'N, LONG 72°32.6'W N d. LAT 41°05.3'N, LONG 72°31.9'W 14202: What is the minimum clearance for the bridge across the entrance to the Wind River at Home Valley, WA.?
N a. 14 feet Y b. 26 feet N c. 34 feet N d. 38 feet 15262: At 0910, your DR position is LAT 41°11.9'N, LONG 72°47.8'W. Your vessel is on course 097°T at 9.5 knots, and the weather is foggy. At 0915, Branford Reef Light is sighted through a break in the fog bearing 318°T. At 0945,
Falkner Island Light is sighted bearing 042°T. What is your 0945 running fix position?
N a. LAT 41°11.3'N, LONG 72°41.2'W N b. LAT 41°11.3'N, LONG 72°41.0'W Y c. LAT 41°11.5'N, LONG 72°40.7'W N d. LAT 41°11.6'N, LONG 72°41.0'W 15361: 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?
N a. 082.0°psc N b. 092.5°psc N c. 096.0°psc Y d. 099.5°psc 15464: What is the course per standard magnetic compass on the southern leg of York Spit Channel between buoys "15" and "23"?
N a. 319° N b. 322° Y c. 339° N d. 341° 15614: From your 1920 position, you change course to enter Chesapeake Channel between buoys 9 and 10. What is the course per standard magnetic compass (psc) ?
N a. 286°psc Y b. 283°psc N c. 280°psc N d. 274°psc 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 15919: At 1200, your position is 2.0 miles southwest of Bartlett Reef Light. Your heading is 075°T. Visibility is less than 0.2 mile in fog and rain. Which of the following signals is most likely to be from another vessel?
N a. Whistle from 125° relative Y b. Whistle from 075° relative N c. Bell from 350° relative N d. Horn from 330° relative 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. 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° 16207: If you change course at 0610, what is the course to steer to a point where Little Gull Island Light bears 180°T at 0.7 mile (Point "A")?
N a. 072°pgc N b. 076°pgc Y c. 080°pgc N d. 084°pgc 16356: What is the course per standard magnetic compass from the anchorage to point "A" located 0.5 mile east of Cape Charles Lighted Bell Buoy 14?
N a. 185° N b. 188° N c. 191° Y d. 194° 16416: At 1345, you depart from a position 1 mile due east of Montauk Point Light and set course for Block Island Southeast Light at 9 knots. At 1430 your position is Latitude 41° 06.3' North Longitude 071° 41.9' West
What was the current encountered since 1345?
N a. Set 015°, drift 0.5 knot Y b. Set 195°, drift 0.5 knot N c. Set 015°, drift 0.7 knot N d. Set 195°, drift 0.7 knot 16516: At 0815, visibility is excellent and you can see Montauk
Point. Montauk Point is __________.
N a. low and rocky with scattered small pine trees N b. a low lying wetland N c. a flat wooded plain Y d. a high sandy bluff 16563: From your 1850 fix, you come left to a course of 280°T,
while maintaining a speed of 10 knots. Which combination of available Loran-C lines would be best for position determination?
Y a. 9960-Y and 9960-W N b. 9960-X and 9960-Y N c. 9960-W and 9960-X N d. All 3 combinations are equal.