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.
125: As you approach Ashland Light (mile 378.1 AHP) which daymark would you see?
Y a. Red triangle N b. Red diamond N c. Green square N d. Green diamond 152: How long will it take you to go from the Memphis Gage to your destination in New Orleans, LA, if you estimate the average current on this segment of the route to be 2.0 mph and you increase the engine turns to 8.5 mph.
N a. 1 day 20 hours 33 minutes N b. 2 days 6 hours 24 minutes Y c. 2 days 12 hours 15 minutes N d. 3 days 4 hours 11 minutes 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 193: If the visibility is 3 miles, at what range will you lose sight of Chesapeake Light?
N a. The light has never been visible. N b. 4.6 miles N c. 6.4 miles Y d. 8.3 miles 238: 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°11.1'N, LONG 72°41.2'W N b. LAT 41°11.3'N, LONG 72°41.3'W Y c. LAT 41°11.5'N, LONG 72°40.7'W N d. LAT 41°11.8'N, LONG 72°40.2'W 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 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 381: At 1540, your position is LAT 37°18.4'N, LONG 76°10.5'W. Which course should you steer per gyrocompass to head for the entrance to Cape Charles City?
Y a. 129°pgc N b. 123°pgc N c. 117°pgc N d. 109°pgc 398: You depart LAT 32°16.6'N, LONG 68°28.0'W. What is the course and distance as calculated by Mercator sailing to a position at LAT 43°12.2'N, LONG 55°39.0'W?
Y a. 042.8°T, 896.2 miles N b. 049.1°T, 955.1 miles N c. 132.8°T, 896.2 miles N d. 136.6°T, 955.1 miles 478: The great circle distance from LAT 38°17'N, LONG 123°16'W to LAT 35°01'N, LONG 142°21'E is 4330 miles, and the initial course is 300.9°T. Determine the latitude of the vertex.
N a. 46°54.8'N N b. 47°24.7'N N c. 47°35.2'N Y d. 47°40.5'N 489: At 0728, Race Rock Light is bearing 282°T at 3.8 miles, and the closest point on Fishers Island is at a radar range of 2.1 miles. What speed have you been making since you changed course at 0705?
N a. 11.4 knots N b. 10.6 knots Y c. 9.9 knots N d. 9.2 knots 552: If the visibility is 10 miles, what is the earliest time you can expect to see New Haven Light?
N a. 0500 N b. 0508 N c. 0514 Y d. You will not sight the light. 556: 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?
Y a. 099.5°psc N b. 096.0°psc N c. 092.5°psc N d. 082.0°psc 621: You are on a voyage from New York, NY, to San Francisco, CA. The distance from pilot to pilot is 5132 miles. The speed of advance is 13.5 knots. You estimate 32 hours for bunkering at Colon, and 14 hours for the Panama Canal transit. If you take departure at 0600 hours (ZD +4), 16 May, what is your ETA (ZD +7) at San Francisco?
N a. 0609, 1 June Y b. 2109, 2 June N c. 0009, 3 June N d. 0409, 3 June 631: From your 0100 position, you change course to 258° per standard magnetic compass. Your engine speed is 10.0 knots. A short time later, your fathometer reads 51 feet (15.5 meters) under the keel. What is the water depth?
N a. 38.5 feet (11.7 meters) N b. 43.5 feet (13.2 meters) N c. 51.0 feet (15.5 meters) Y d. 59.5 feet (18.0 meters) 1167: Where can scheduled broadcast times of river stages be found?
N a. Sailing Directions N b. List of Lights Y c. Light List N d. Coast Pilot 1179: On 26 September , your 0830 zone time DR position is LAT 26°04.0'N, LONG 129°16.0'W. Your vessel is on course 119°T at a speed of 20.0 knots. What is the zone time of local apparent noon (LAN)?
Y a. 1124 N b. 1127 N c. 1130 N d. 1133 1208: On 12 July , your 0800 ZT DR position is LAT 24°15.0'N, LONG 132°30.0'W. Your vessel is on course 045°T at a speed of 15.0 knots. What is the ZT of local apparent noon (LAN)?
N a. 1146 N b. 1148 Y c. 1152 N d. 1159 1247: At 0509, on 26 December, you pass under the Helena Highway Bridge (mile 661.7 AHP). What has been the average speed of the current since departing Memphis Harbor, McKellar Lake, if you have been making turns for 7.5 mph?
N a. 5.6 mph Y b. 4.4 mph N c. 2.1 mph N d. 1.8 mph 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 1479: On 6 November , your vessel's 0706 zone time DR position is LAT 25°30.0'N, LONG 85°35.0'W, when an azimuth of the Sun is observed. The chronometer time of the sight is 01h 03m 30s, and the Sun is bearing 114.0°pgc. The chronometer error is 02m 30s slow, and the variation in the area is 2°.
What is the gyro error?
N a. 0.8°E N b. 0.8°W N c. 2.0°W Y d. 2.0°E 1680: On 31 October , your 1700 zone time DR position is LAT 27°17.0'N, LONG 116°10.0'W, when an amplitude of the Sun is observed. The Sun's center is on the visible horizon and bears 246.5° per standard magnetic compass. Variation in the area is 8.5°E. The chronometer reads 01h 01m 23s and the chronometer error is 01m 54s slow. What is the deviation of the standard compass?
N a. 0.8°E Y b. 0.8°W N c. 2.5°E N d. 2.5°W 1751: At 1118, on 24 May, you pass Natchez Gage and estimate the current will average 3.0 mph for the remainder of the time on the Mississippi River. What is your ETA at Cairo, IL if you continue to turn for 10 mph?
N a. 0840, 26 May N b. 2218, 26 May Y c. 2339, 27 May N d. 0339, 28 May 1805: What is the vertical clearance between the highest point of your towboat, if it is 48 feet above the water, and if the Natchez Gage reads 20.1 feet when passing under the Natchez Upper Highway Bridge?
N a. 35.9 feet N b. 43.2 feet N c. 49.3 feet Y d. 57.9 feet 1851: On 23 September , while taking stars for an evening fix, an unidentified star is observed bearing 261°T at an observed altitude of 61°35'. Your 1836 zone time DR position is LAT 25°18'S, LONG 162°36'E. The chronometer reads 07h 34m 12s, and the chronometer error is 01m 54s slow. Your vessel is steaming on a course of 230°T at a speed of 18 knots. What star did you observe?
Y a. Antares N b. Canopus N c. Achernar N d. Sirius 1885: On 26 November , your 0535 DR position is LAT 27°18.9'S, LONG 30°18.4'E. You observe an unidentified planet bearing 037°T at an observed altitude (Ho) of 50°06.4'. The chronometer reads 03h 33m 16s and is 01m 48s slow. What planet did you observe?
N a. Saturn N b. Jupiter Y c. Mars N d. Venus 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 2462: You have steamed 504 miles at 21 knots and burning 633 barrels of fuel per day. You must decrease your consumption to 410 barrels per day with 399 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?
N a. 20.1 Y b. 19.0 N c. 16.2 N d. 15.0 2856: Your vessel is on a course of 034°T at 17 knots. At 0551 a light bears 056.5°T, and at 0623 the light bears 079°T. At what time and at what distance off will your vessel be when abeam of the light?
N a. 0636, 5.9 miles N b. 0646, 5.9 miles N c. 0636, 6.4 miles Y d. 0646, 6.4 miles 3061: The propeller on a vessel has a diameter of 20.2 feet and a pitch of 19.0 feet. What would be the apparent slip if the vessel cruised 367 miles in a 24 hour day (observed distance) at an average RPM of 84?
Y a. +2.9% N b. -2.9% N c. +5.2% N d. -5.2% 3305: You have steamed 201 miles and consumed 18.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 482 miles?
N a. 25.2 tons Y b. 43.2 tons N c. 52.6 tons N d. 103.5 tons 10208: Your GPS position is LAT 41°08.5'N, LONG 72°28.8'W. What course must you steer per standard magnetic compass (psc) to leave Cornfield Lighted Whistle Buoy "CF" 0.5 mile abeam to starboard?
N a. 032°psc N b. 048°psc N c. 055°psc Y d. 067°psc 11707: 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 7.8 knots, the current is 139°T at 1.3 knots, and a northwesterly wind is causing 3° of leeway?
N a. 290.0°psc Y b. 286.0°psc N c. 283.5°psc N d. 280.5°psc 12303: You are on course 056° per standard magnetic compass when you sight Block Island North Light in line with the Block Island Aero Beacon bearing 193° per standard magnetic compass. Based on this you __________.
N a. know the compass error is 4°E N b. should swing your vessel to check for deviation Y c. know the deviation table is correct for that heading N d. should use 3°W deviation on bearings of 193°psc 12903: Your 1426 position is LAT 37°10.9'N, LONG 75°29.6'W. You are turning for 9.3 knots. What is your ETA at Chesapeake Light?
N a. 1616 N b. 1621 N c. 1626 Y d. 1633 13009: Your 1830 position is LAT 41°05.4'N, LONG 72°59.4'W. You are making turns for 9 knots. What is your ETA at Mattituck Inlet?
Y a. 2044 N b. 2052 N c. 2059 N d. 2106 15040: At about what time will you see Chesapeake Light if visibility is exceptionally clear?
Y a. 0729 N b. 0733 N c. 0738 N d. 0742 15168: Which chart provides more detail of Cape Charles harbor and its approaches?
N a. 12238 N b. 12225 Y c. 12224 N d. 12222 15543: At 2236 Falkner Island Light bears 024° true at a range of 8.6 nm
What was the speed made good along the track line since your 2200 fix?
N a. 12.7 knots Y b. 13.5 knots N c. 13.9 knots N d. 14.2 knots 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 15830: The black broken-line marking, across the river, that appears at mile 952.1 AHP represents a __________.
Y a. utility crossing N b. railroad N c. submarine crossing N d. revetment 15868: Stratford Shoal Middle Ground Light is __________.
N a. 13 foot high N b. a fixed white light N c. shown from a white tower Y d. equipped with a HORN 15967: At 1925, you take a fix using the following radar ranges:
York Spit Light - 3.4 miles away;
New Point Comfort Spit Light "2" - 2.1 miles away;
York Spit Swash Channel Light "3" - 2.7 miles away. Your longitude is __________.
Y a. 76°16.6'W N b. 76°16.8'W N c. 76°17.0'W N d. 76°17.2'W 16041: From your 0847 fix, you change course to arrive at the rendezvous position and, correcting for current, you estimate your speed over the ground at 15 knots. What is your ETA at the rendezvous?
N a. 0902 N b. 0905 Y c. 0908 N d. 0911 16314: At 0820, you take the following bearings:
Branford Reef Light bearing 307° true
Falkner Island Light bearing 052° true
What are the set and drift since 0730?
N a. Set 052°T, drift 1.1 knots N b. Set 052°T, drift 1.3 knots N c. Set 236°T, drift 1.1 knot Y d. Set 236°T, drift 1.3 knots 16338: At 2209 your position is latitude 40 47.7'N, longitude 71 35.5'W. There is a strong WSW'ly wind causing an estimated 3° leeway. What course will you steer by standard magnetic compass from your 2209 position to make good 340°T?
N a. 322° N b. 348° Y c. 356° N d. 002° 16546: At 0100 you notice that the wind has become SSW'ly and has freshened. At 0200 you sight Stratford Point Lighted Bell Buoy "18" bearing 268°pgc. At 0215 the buoy bears 269°pgc. Which statement is TRUE?
N a. You should alter course to the right to increase the rate of the bearing change. N b. You are making more speed over the ground than you estimated. Y c. You should alter course to decrease the distance that you will pass off Middle Ground Shoal. N d. You can hold the present course and safely pass buoy "18". 16561: From your 1830 fix, you come left to a course of 290°T.
Which statement concerning Watch Hill Light is TRUE?
N a. The nominal range of its white light is 16 miles. Y b. It displays both red and white lights. N c. Its horn blasts every 15 seconds in fog. N d. Its geographic range is 18.5 miles at a 35-foot (10.7 meters) height of eye.