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.
40: Which of the following statements regarding aids to navigation shown in the Army Corps. of Engineers map book is TRUE?
N a. The U.S. Army Corps.. of Engineers is responsible for placing and maintaining all aids to navigation. N b. Buoy positions as shown on the chart are exact. Y c. Buoys should always be given as wide a berth as possible. N d. Lights and daymarks are always shown in their exact location. 101: At 1430 on 13 August, you pass Carolina Landing Light (mile 508.8 AHP). What has been the average current since 0230, 13 August if you have been making turns for 8.0 mph?
N a. 8.5 mph N b. 5.7 mph N c. 1.5 mph Y d. 0.5 mph 207: If your height of eye is 35 feet (10.7 meters), what is the approximate geographic range of Block Island North Light?
N a. 7.4 nm N b. 13.0 nm Y c. 15.8 nm N d. 17.5 nm 266: From your 0740 position, you change course to pass 1.1 miles north of Falkner Island Light. What loran reading will ensure that you will remain clear of the 18' shoal located 1 mile NW of Falkner Island Light?
Y a. 9960 Y: not less than 44014 N b. 9960 X: not more than 26452 N c. 9960 W: not less than 14942 N d. None of the above 289: At 1930, you take a fix using the following radar ranges:
York Spit Light - 3.6 miles;
New Point Comfort Spit Light "2" - 2.0 miles;
York Spit Swash Channel Light "3" - 2.5 miles.
Your longitude is __________.
N a. 76°16.2'W N b. 76°16.5'W Y c. 76°16.8'W N d. 76°17.2'W 291: What is the height above water of Davis Creek Channel Light "1"?
Y a. 15 feet (4.6 meters) N b. 17 feet (5.2 meters) N c. 19 feet (5.8 meters) N d. 24 feet (7.3 meters) 318: From your 1915 fix you come right and steer a course of 200°T. At 2000, your position is LAT 37°05.5'N, LONG 76°07.0'W. Your intention is to pass through Chesapeake Channel. If there are no set and drift, what course would you steer per standard magnetic compass to make good a course of 145°T?
Y a. 156° N b. 151° N c. 139° N d. 134° 370: At 0812, you are on course 132°T. The standard magnetic compass reads 135°. What should you conclude?
N a. The deviation table is correct for that heading. N b. You should adjust the magnetic compass. N c. The deviation is increasing as you go south. Y d. Your compass may be influenced by a local magnetic disturbance. 457: Determine the great circle distance and initial course from LAT 31°57.0'S, LONG 115°52.0'E to LAT 24°47.0'N, LONG 66°59.0'E.
N a. 4516 miles, 134.5°T Y b. 4407 miles, 314.5°T N c. 4402 miles, 319.5°T N d. 4378 miles, 336.8°T 486: What is your speed from your 0630 position, with Buoy "PI" close abeam, to your 0654 position?
N a. 11.4 knots Y b. 10.5 knots N c. 9.3 knots N d. 8.2 knots 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 567: What is the distance from Lamberts Point to abeam of Thimble Shoal Lt. following the navigable channel?
Y a. 11.2 miles N b. 10.6 miles N c. 9.8 miles N d. 9.0 miles 638: What is the mile point of the Fulton Gage?
Y a. 778 AHP N b. 687 AHP N c. 632 AHP N d. 598 AHP 651: You are planning a voyage by great circle from Reykjavik (LAT 63°30'N, LONG 24°00'W) to the Azores (LAT 39°30'N, LONG 29°00'W). Which statement is TRUE? (Use gnomonic tracking chart WOXZC 5274)
N a. The distance is measured in sixty-mile segments based on the length of a degree of latitude at the mid-latitude and mid-longitude position. N b. The Northern Hemisphere vertex lies south of Reykjavik. Y c. The great circle track is not appreciably shorter than a rhumb line track. N d. When plotted on a Mercator chart, the great circle track will be convex to the British Isles. 706: The solid lines extending into the channel at mile 948 AHP are __________.
N a. revetments Y b. dikes N c. spoil areas N d. Westvaco Service Facilities 818: On 30 December , in DR position LAT 28°24.0'S, LONG 32°15.0'W, you take an ex-meridian observation of the Sun's lower limb. The chronometer time of the sight is 02h 09m 16s, and the chronometer error is 00m 00s. The sextant altitude (hs) is 84°03.3'. The index error is 3.5' off the arc, and your height of eye is 62.0 feet. What is the latitude at meridian transit?
N a. LAT 28°50.6'S Y b. LAT 28°51.9'S N c. LAT 28°54.2'S N d. LAT 28°56.6'S 987: On 17 January , your 0730 zone time fix gives you a position of LAT 22°26.0'S, LONG 152°17.0'E. Your vessel is steaming on a course of 116°T at a speed of 17 knots. An observation of the Sun's lower limb is made at 1015 zone time. The chronometer reads 00h 13m 23s, and the chronometer error is 01m 49s slow. The observed altitude (Ho) is 66°02.1'. LAN occurs at 1152 zone time and a meridian altitude of the Sun's lower limb is made. The observed altitude (Ho) is 87°54.2'. Determine the vessel's 1200 zone time position.
Y a. LAT 22°53.8'S, LONG 153°25.6'E N b. LAT 22°53.8'S, LONG 153°28.8'E N c. LAT 22°56.3'S, LONG 153°25.6'E N d. LAT 22°56.3'S, LONG 153°28.8'E 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 1290: You are at mile 230.0 AHP and see on the map a large rectangle outlined with a broken line . This indicates a __________.
N a. revetment N b. dredge material Y c. fleeting area N d. dike 1294: What are the light characteristics of Greenwood Light (mile 288.6 AHP)?
N a. Fixed red light Y b. 2 red flashes every 5 seconds N c. 1 red flash every 4 seconds N d. 2 white flashes every 4 seconds 1426: What is the total length of the trip?
N a. 910.6 miles N b. 901.4 miles N c. 900.7 miles Y d. 873.7 miles 1475: On 26 February , your vessel's 1615 ZT DR position is LAT 25°14'S, LONG 57°22'W, when an azimuth of the Sun is observed. The chronometer time of the sight is 8h 13m 19s, and the Sun is bearing 266.0° per standard magnetic compass. The chronometer error is 01m 46s slow, and the variation in the area is 6°E. What is the deviation of the standard compass?
Y a. 1.7°E N b. 3.4°W N c. 7.7°E N d. 13.7°E 1541: At 0119, on 10 September, you pass Springfield Bend Lt. (mile 244.8 AHP) 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 8.5 mph?
N a. 1746, 12 September N b. 1244, 13 September Y c. 2329, 14 September N d. 0210, 15 September 1644: From your 2207 position you adjust your course to arrive 0.3 mile north of Lighted Whistle Buoy "NCA". If you make good 14 knots, at what time will Cape Charles Light be abeam?
Y a. 2242 N b. 2245 N c. 2247 N d. 2250 1854: On 22 July , your 1759 ZT DR position is LAT 24°50.2'S, LONG 05°16.0'E. You observe an unidentified star bearing 231°T, at an observed altitude (Ho) of 26°10.0'. The chronometer reads 06h 01m 31s and is 02m 15s fast. What star did you observe?
N a. Acamar N b. Capella N c. Miaplacidus Y d. Suhail 1888: On 8 April , your evening DR position is LAT 22°16.0'N, LONG 157°58.3'W. You observe an unidentified star bearing 238°T at an observed altitude (Ho) of 50°02.7'. The chronometer reads 05h 09m 57s, and is 01m 23s slow. What star did you observe?
N a. Betelgeuse N b. Aldebaran Y c. Alnilam N d. Bellatrix 1900: On 22 May , your 0437 DR position is LAT 25°18.5'N, LONG 51°18.0'W. You observed an unidentified star bearing 233°T at an observed altitude (Ho) of 29°42.3'. The chronometer reads 07h 40m 40s, and is 03m 24s fast. What star did you observe?
N a. Markab N b. Diphda Y c. Sabik N d. Hamal 1907: On 22 March , your 1834 DR position is LAT 26°13.5'S, LONG 108°36.5'W. You observe an unidentified star bearing 062°T at an observed altitude (Ho) of 23°22.0'. The chronometer reads 01h 32m 37s, and is 01m 50s slow. Which star did you observe?
Y a. Regulus N b. Menkar N c. Rigel N d. Alphard 1914: On 14 January , your 0550 DR position is LAT 25°26.0'N, LONG 38°16.0'W. You observe an unidentified star bearing 192°T at an observed altitude (Ho) of 06°15.2'. The chronometer reads 08h 48m 51s, and is 01m 22s slow. What star did you observe?
N a. Gienah N b. Kochab Y c. Gacrux N d. Eltanin 2247: At 1845 zone time, on 17 March , while taking stars for an evening fix, you observe an unidentified star bearing 200°T at an observed altitude of 53°45.0'. Your DR position at the time of the sight is LAT 25°10.0'N, LONG 66°48.0'W. The chronometer time of the sight is 10h 47m 49s, and the chronometer error is 1m 54s fast. Your vessel is steaming on a course of 290°T at a speed of 18.0 knots. What star did you observe?
N a. Altair N b. Mirfak N c. Pollux Y d. Rigel 2322: 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?
Y a. 0.5 mph N b. 1.5 mph N c. 5.7 mph N d. 8.5 mph 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 2905: You are steaming on a course of 215°T at 14 knots. At 1841 you observe a lighthouse bearing 178°T. At 1904 the same lighthouse bears 156°T. What is your distance off at the second bearing?
N a. 5.4 miles N b. 6.6 miles N c. 7.5 miles Y d. 8.7 miles 6143: At 2027 you obtain a radar range to Shagwong Point of 3.4 miles and a tangent bearing to the east end of Long Island of 172°T. Which statement is TRUE?
Y a. You are to the left of your DR track. N b. You are inside a precautionary area. N c. Your speed made good from 1949 to 2027 is 14.0 knots. N d. Your course made good from 1949 to 2027 is 111°T. 11706: 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 8.7 knots, the current is 039°T at 1.3 knots, and a northwesterly wind is causing 3° of leeway?
N a. 264.0° N b. 267.5° N c. 270.0° Y d. 273.0° 13105: At 1048 you are in the entrance to Great Salt Pond on Block Island with buoy "5" close aboard. What is your ETA at the west gap of Point Judith Harbor of Refuge if you make good 8.3 knots?
N a. 1149 N b. 1154 N c. 1158 Y d. 1203 13303: You are considering anchoring approximately three miles northeast of Chesapeake Light. After examining the chart you decide not to because of the __________.
N a. large number of wrecks N b. coral being designated as a special protected area Y c. danger of unexploded mines N d. area being designated as a National Marine Sanctuary 13504: A vessel anchoring in the middle of Cherry Harbor, 1 mile off Gardiner's Island, will find what type of bottom?
N a. Rocky N b. Shells Y c. Mud N d. Silt 15066: If you correct for the current in the preceding question (035°T at 0.5 knot) and maintain an engine speed of 7.5 knots, what is your ETA 0.5 mile south of buoy "W"?
N a. 1016 Y b. 1021 N c. 1026 N d. 1030 15161: From your 1815 position, you want to make good course 263°
T. Your engines are turning RPMs for 12 knots. The current is 050°T at 1.9 knots. Adjusting your course for set and drift, at what time should you expect to enter the red sector of Cape Henry Light?
N a. 1851 N b. 1857 Y c. 1904 N d. 1911 15538: At 2127 you take the following round of bearings:
Old Field Point Light 224.0°pgc
Middle Ground Light 320.5°pgc
Stratford Point Light 348.0°pgc
Based on the above fix, which statement is TRUE?
Y a. At 2127, your fathometer reads about 17 fathoms. N b. You are south of Mt. Misery Shoal. N c. You will experience a 1 knot westward setting ebb current N d. You have lost sight of the red light at Old Field Point. 15540: At 2200 Middle Ground Light is bearing 270° true at 9 nm
Which statement is TRUE?
N a. The current is flooding. Y b. You are being set to the left of the track. N c. The set is towards the southwest. N d. The drift is 0.6 knot. 15822: You are turning for 10 mph, approaching Angola, LA. Angola reports that the current at Red River Landing is estimated at 4.5 MPH. Which of the following statements is TRUE?
N a. You are making 14.5 mph over the ground. Y b. You should expect to encounter vessels crossing the river at mile 300.5 AHP. N c. You would expect to find a more favorable current near the broken red line in the river. N d. Hog Pt. Light and Hog Pt. Lower Light may be used as range lights when entering Shreves cut-off. 15845: If you are going to head directly for Chesapeake Light from your 2111 fix, what is the course to make good?
Y a. 190°T N b. 193°T N c. 196°T N d. 199°T 15960: From your 1752 position, you steer 313°pgc at 9 knots. At 1805, you obtain the following visual bearings:
Old Pt. Comfort Light - 238°pgc.
Chesapeake Bay Tunnel North Light - 136°pgc.
What are the latitude and longitude of your 1805 position?
Y a. LAT 37°05.9'N, LONG 76°08.0'W N b. LAT 37°06.0'N, LONG 76°08.4'W N c. LAT 37°05.0'N, LONG 76°08.7'W N d. LAT 37°06.1'N, LONG 76°08.1'W 16040: At 0847 you take a round of bearings as follows:
Middle Ground Shoal Light - 237° pgc
Stratford Point Light - 289° pgc
New Haven Light - 019° pgc
What were the set and drift since your 0820 position?
N a. Set 180°T, drift 0.6 kt N b. Set 360°T, drift 0.3 kt N c. Set 180°T, drift 0.3 kt Y d. Set 360°T, drift 0.6 kt 16610: At 2142, you change course to make good 030°T and increase speed to 14 knots. You rendezvous with another vessel and receive fresh supplies while off New Haven Harbor lighted whistle buoy "NH". What is the light characteristic of this buoy?
N a. _ . N b. _ _ Y c. . _ N d. . . 16714: What was the current between 0520 and 0600?
N a. 201° at 1.0 knot N b. 201° at 1.5 knot N c. 021° at 1.0 knot Y d. 021° at 1.5 knots