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.
41: The Delta-Friar Point revetment on the LMR extends from mile __________.
N a. 648.5 - 645.5 LDB N b. 652.8 - 649.6 RDB Y c. 657.3 - 652.2 LDB N d. 645.6 - 641.4 RDB 106: You are steaming at 22 knots and burning 319 barrels of fuel per day. You must decrease your consumption to 137 barrels per day. What must you reduce your speed to in order to burn this amount of fuel?
N a. 12.4 N b. 14.8 Y c. 16.6 N d. 18.2 198: While navigating inbound Thimble Shoal Channel system you must __________.
N a. navigate in the main channel when between Trestles A & B Y b. use the north auxiliary channel N c. remain 1500 yards (1360 meters) from large naval vessels N d. maintain a speed of six knots 294: What is the maximum allowable speed of vessels underway up river from Tue Marshes Light?
Y a. 12 knots N b. 10 knots N c. 8 knots N d. 6 knots 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. 378: A vessel at LAT 37°24.0'N, LONG 178°15.0'W, heads for a destination at LAT 34°18.0'N, LONG 178°25.0°E. Determine the true course and distance by Mercator sailing.
N a. 041°T, 273.9 miles N b. 047°T, 273.9 miles Y c. 221°T, 247.2 miles N d. 227°T, 247.2 miles 379: A vessel at LAT 32°05.0'N, LONG 81°06.0'W, heads for a destination at LAT 35°57.0'N, LONG 5°45.0'W. Determine the distance by Mercator sailing.
N a. 3128.2 miles Y b. 3770.6 miles N c. 4126.1 miles N d. 4508.0 miles 432: Which chart would you use for more detailed information on New Haven Harbor?
Y a. 12371 N b. 12370 N c. 12372 N d. 12373 675: You are planning a voyage from Godthab, Greenland, to Cayenne, French Guiana. Using chart WOXZC 5274, determine which statement is TRUE.
N a. Godthab is located at the Northern Hemisphere vertex. Y b. The rhumb line track approximates a great circle track. N c. A great circle track will be considerably shorter due to the length of the voyage. N d. Distance is measured by using the length of meridian at the point of tangency. 682: As you pass under the Natchez-Vidalia Dual Bridge, the gage on the bridge reads 8.9 ft. If the highest point on your vessel is 54 ft. above the water, what is your vertical clearance?
N a. 60.0 feet Y b. 63.1 feet N c. 67.2 feet N d. 122.0 feet 1008: On 27 March , your 0730 zone time position is LAT 28°16'N, LONG 56°37'W. Your vessel is on course 158°T at a speed of 15.0 knots. An observation of the Sun's lower limb is made at 0915 zone time. The chronometer reads 01h 14m 11s, and the chronometer error is 00m 53s slow. The observed altitude (Ho) is 45°10.7'. LAN occurs at 1150 zone time, and a meridian altitude of the Sun's lower limb is made. The observed altitude (Ho) is 65°32.8'. Determine the vessel's 1200 zone time position.
Y a. LAT 27°08.8'N, LONG 56°04.2'W N b. LAT 27°08.8'N, LONG 56°10.3'W N c. LAT 27°11.6'N, LONG 56°04.2'W N d. LAT 27°11.6'N, LONG 56°10.3'W 1079: On 12 Dec. , your 1830 ZT DR position is LAT 24°16.0'S, LONG 41°18.0'W. You are on course 235°T at a speed of 16.0 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 1930 running fix. NP-0009
N a. LAT 24°12.5'S, LONG 41°10.9'W Y b. LAT 24°16.9'S, LONG 41°18.2'W N c. LAT 24°25.2'S, LONG 41°39.9'W N d. LAT 27°46.9'S, LONG 41°31.2'W 1224: What is the total length of the trip?
N a. 906.3 miles Y b. 922.3 miles N c. 1155.8 miles N d. 1187.3 miles 1232: The Vaucluse Trench fill revetment on the LMR extends from mile __________.
N a. 524.3 - 522.6 RDB Y b. 535.6 - 532.9 RDB N c. 535.9 - 534.3 LDB N d. 534.3 - 532.6 LDB 1245: The highest point on your towboat is 67 feet above the water, and the Helena Gage reads +22.3 feet. What is the vertical clearance when you pass under the A-span of the Helena Highway Bridge?
N a. 74.7 feet N b. 52.4 feet N c. 49.8 feet Y d. 30.1 feet 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 1770: What are the light characteriditcs of the Bunge Corporation Terminal Lights (2) at mile 570.6 AHP?
N a. a group flashing white light every five seconds N b. a flashing green light every 4 seconds Y c. a flashing green light every 6 seconds N d. a flashing red light every 4 seconds 1804: You pass Red River Gage at 2015 on 16 April and estimate the current will average 3.0 mph for the remainder of the time on the Mississippi River. What is your ETA at the mouth of the Ohio River if you continue to turn for 10 mph?
Y a. 1718, 20 April N b. 1830, 20 April N c. 0028, 21 April N d. 0821, 21 April 1897: On 22 June , your 0424 DR position is LAT 26°18.5'N, LONG 124°18.2'W. You observe an unidentified star bearing 249°T at an observed altitude (Ho) of 52°50.7'. The chronometer reads 00h 23m 24s, and is 01m 32s slow. What star did you observe?
N a. Peacock N b. Schedar N c. Ankaa Y d. Altair 1953: You are downbound when you observe on your Mississippi River map a circel with black and white quadrants on the left bank. This indicates a __________.
Y a. river gage N b. daymark N c. control tower N d. information board 2160: On 17 April , your vessel's 1856 zone time DR position is LAT 22°35.0'N, LONG 63°15.0'W. At that time, a sextant observation of the star Sirius is made. The sextant altitude is 42°45.0' and the chronometer reads 10h 59m 27s.
The index error is 2.6' off the arc, and the chronometer error is 03m 01s fast. Your height of eye is determined to be 45 feet. What is the computed altitude (hc) and azimuth (Zn) for this sight using the assumed position?
N a. 42°40.0', 214.9°T N b. 42°40.0', 325.1°T Y c. 42°51.6', 214.9°T N d. 42°51.6', 325.1°T 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 2368: At 2100, January 12, you are passing Cherokee Landing Lt. (mile 112.5 UMR). What has been your speed over the ground since leaving St. Louis, MO (mile 181 UMR).
N a. 10.4 mph Y b. 9.8 mph N c. 9.2 mph N d. 8.8 mph 2653: You are steering 019°T, and a light is picked up dead ahead at a distance of 11.6 miles at 0216. You change course to pass the light 3 miles off abeam to port. If you are making 14 knots, what is your ETA at the position 3 miles off the light?
N a. 0258 N b. 0301 Y c. 0304 N d. 0307 2863: Your vessel is underway on a course of 115°T at 18 knots. At 1850 a lighthouse bears 137.5°T. At 1920, the same lighthouse bears 160°T. What time will the lighthouse pass abeam to starboard?
N a. 1929 Y b. 1941 N c. 1949 N d. 1955 3051: The propeller on a vessel has a diameter of 20.6 feet and a pitch of 23.4 feet. What would be the apparent slip if the vessel cruised 538 miles in a 24 hour day (observed distance) at an average RPM of 87?
Y a. -11.6% N b. +11.6% N c. -10.3% N d. +10.3% 3053: The propeller on a vessel has a diameter of 19.9 feet and a pitch of 21.6 feet. What would be the apparent slip if the vessel cruised 395 miles in a 23 hour day (observed distance) at an average RPM of 78?
Y a. -3.2% N b. +3.2% N c. -12.0% N d. +12.0% 3250: You are taking a time tick using the 1200 signal from Valparaiso, Chile. You hear a series of 1 second dashes followed by a 9 second silent period, then a long 1.3 second dash. At the beginning of the long dash, your comparing watch reads 12h 00m 18s. When compared to the chronometer, the comparing watch reads 12h 01m 23s, and the chronometer reads 11h 59m 35s. What is the chronometer error?
N a. 0m 18s fast N b. 1m 05s fast N c. 0m 25s slow Y d. 1m 30s slow 3265: You have steamed 1587 miles at 11.2 knots, and have consumed one-half of your total fuel capacity of 2840 bbls. What is the maximum speed you can steam to complete the remaining 1951 miles?
N a. 9.1 knots N b. 9.9 knots Y c. 10.1 knots N d. 11.6 knots 3302: You have steamed 132 miles and consumed 14.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 289 miles?
N a. 21.6 tons N b. 24.5 tons N c. 27.9 tons Y d. 30.7 tons 3618: Your vessel is steering course 027° per standard magnetic compass (psc), variation for the area is 19°W, and deviation is 2°E. The wind is from the north-northwest, producing a 5° leeway. What true course are you making good?
N a. 005°T Y b. 015°T N c. 044°T N d. 049°T 3635: You desire to make good a true course of 236°. The variation is 8°E, magnetic compass deviation is 1°E, and gyrocompass error is 3°W. A south-southeasterly wind produces a 1° leeway. What is the course to steer per standard magnetic compass (psc) to make the true course good?
Y a. 226°psc N b. 228°psc N c. 244°psc N d. 246°psc 12500: You are on course 135° per standard magnetic compass when you take the following bearings per standard magnetic compass: Cape Henry Light 266° Cape Charles Light 353°Chesapeake Light 124° What is your position?
Y a. LAT 36°57.3'N, LONG 75°50.9'W N b. LAT 36°57.5'N, LONG 75°50.1'W N c. LAT 36°57.6'N, LONG 75°51.6'W N d. LAT 35°57.9'N, LONG 75°50.8'W 13301: The approach channel to the town of Cape Charles (LAT 37°16'N, LONG 76°01'W) has what controlling depth?
N a. 9 feet Y b. 17 feet N c. 20 feet N d. 40 feet 13409: You plan to anchor your vessel at LAT 41°00.5'N, LONG 73°02.8'W. What type of bottom should you expect at this position?
N a. Gray sand Y b. Soft mud N c. Hard sand N d. Gray mud 13409: You plan to anchor your vessel at LAT 41°00.5'N, LONG 73°02.8'W. What type of bottom should you expect at this position?
N a. Gray sand Y b. Soft mud N c. Hard sand N d. Gray mud 14103: You are approaching Bonneville Lock and Dam and desire lockage. Which call sign should you use to contact the lock?
Y a. WUJ 33 N b. WUJ 34 N c. WUJ 41 N d. WUJ 45 15010: At 1950, your position is LAT 37°12.3'N, LONG 75°38.6'W. The set and drift from 1930 to 1950 were __________.
N a. 150°T at 0.6 knot Y b. 150°T at 1.6 knots N c. 330°T at 0.6 knot N d. 330°T at 1.6 knots 15019: At 2215, Cape Henry Light bears 242°pgc, Cape Charles Light bears 010.5°pgc, and Chesapeake Channel Tunnel North Light bears 319°pgc. You are heading 271°pgc. What is the relative bearing of Thimble Shoal Light?
N a. 280° N b. 332° Y c. 014° N d. 017° 15023: At 1042, on 16 March, you are passing the Vicksburg Gage (mile 437.0 AHP). What has been the average current since 0630, 15 March, if you have been making turns for 8.0 mph?
N a. 0.2 mph N b. 0.5 mph Y c. 0.8 mph N d. 1.2 mph 15144: At 2310 Buoy "MP" bears 305° true with a radar range of 2.5 miles. From this position you change course to 005° true. Without any set and drift, what would be your predicted distance off Southwest Ledge Buoy "2" when it is on your starboard beam?
N a. 0.9 mile N b. 1.1 miles Y c. 1.5 miles N d. 1.9 miles 15320: Inbound, the color of Cape Henry Light will __________.
Y a. change before you reach Chesapeake Channel Lighted Bell Buoy "2C" N b. change after you reach Chesapeake Channel Lighted Bell Buoy "2C" N c. remain the same N d. alternate regardless of your position 15458: You are delayed in sailing due to engineering problems. You get underway at 0630. A Coast Guard radio broadcast advises that an aircraft carrier will transit the Elizabeth River enroute Norfolk Naval Shipyard and a safety zone is in effect. Further information on how far you must remain from the carrier found is in __________.
N a. PUB 117 N b. Light List Y c. Coast Pilot N d. Chart Number 1 15716: At 1210, you are in position LAT 41°14.3'N, LONG 72°16.5'W. What is the depth of water below your keel?
Y a. 97 feet (29.4 meters) N b. 108 feet (32.7 meters) N c. 119 feet (36.1 meters) N d. 125 feet (37.9 meters) 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 16108: From your 0410 fix, what is the course per standard magnetic compass to the entrance to York Spit Channel between buoys "37" and "38"?
N a. 178° Y b. 176° N c. 156° N d. 152° 16340: If you make good your intended course and speed, at what time will you cross the 150-foot curve?
N a. 2237 N b. 2249 Y c. 2256 N d. 2301 16345: Where will you cross the demarcation line between the International and Inland Rules of the Road?
N a. Between Montauk Point and Block Island Y b. In the Race N c. At the mouth of Bridgeport Harbor N d. Between Plum Gut and Niantic Bay 16363: At 0405, you increase speed and at 0500 your position is LAT 37°06.0'N, LONG 75°41.1'W. What is the approximate depth of water?
N a. 46 feet (13.9 meters) Y b. 54 feet (16.4 meters) N c. 62 feet (18.8 meters) N d. 66 feet (20.0 meters) 16457: The coast between Great Machipongo Inlet and Cape Charles is __________.
N a. broken by the mouths of several major rivers Y b. low, with sandy beaches bordered by marsh and woodlands N c. marked by prominent, isolated, barren hills N d. composed of high, rocky bluffs and wooded uplands