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.
68: The river will be temporarily closed to navigation at mile 531.3 AHP due to repairs to the bridge. This will occur at 1300, 5 January, and last for six hours. What minimum speed over the ground must you make from Red River Landing Gage in order not to be delayed?
N a. 7.3 mph N b. 6.8 mph Y c. 6.4 mph N d. 6.0 mph 162: At 1923, you decrease speed to make good 9.2 mph. What is the first Gage you will pass after your speed change?
Y a. Cottonwood Point N b. New Madrid N c. Fulton N d. Tiptonville 211: You decide to use the 9960-Y and 9960-W rates. At 1915,
you obtain the following readings:
9960-Y-43936.0
9960-W-14653.3
What is your 1915 position?
N a. LAT 41°13.0'N, LONG 71°54.1'W N b. LAT 41°13.0'N, LONG 71°53.9'W Y c. LAT 41°13.2'N, LONG 71°53.7'W N d. LAT 41°13.4'N, LONG 71°53.4'W 269: 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. 099° Y b. 095° N c. 068° N d. 064° 346: At 0415, you take the following bearings:
Stratford Point Light 329.5°pgc
Middle Ground Light 223.5°pgc
Old Field Point Light 199.5°pgc
Which statement is TRUE?
N a. The current's drift is greater than predicted. Y b. You are to the right of your intended track line. N c. The course made good since 0352 is 081°T. N d. Your fathometer reads about 76 fathoms. 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 493: At 0815, Montauk Pt. Light House is bearing 167°T, Shagwong Pt. has a radar range of 4.5 miles, and Cerberus Shoal "9" Buoy is bearing 284°T. If the engine is making turns for 10 knots, what was the set and drift of the current since 0748?
N a. Set 065°T, drift 1.1 knots N b. Set 065°T, drift 2.4 knots Y c. Set 245°T, drift 2.4 knots N d. Set 245°T, drift 1.1 knots 503: What was the speed made good between 2114 and 2142?
Y a. 11.4 knots N b. 11.7 knots N c. 12.0 knots N d. 12.3 knots 553: At 0507, Stratford Shoal Middle Ground Light bears 208°pgc. What is the position of your 0507 running fix?
N a. LAT 41°04.6'N, LONG 73°04.7'W N b. LAT 41°04.8'N, LONG 73°04.8'W N c. LAT 41°04.8'N, LONG 73°04.9'W Y d. LAT 41°05.1'N, LONG 73°05.1'W 617: Your vessel will sail from a position in LAT 8°51.0'N, LONG 81°31.0'W to a position at LAT 33°51.5'S, LONG 151°13.0'E. The distance by great circle is 7,635 miles, and you estimate an average speed of 15.0 knots. What is your estimated zone time of arrival if you depart at 1510 ZT, on 23 July?
Y a. 1110, 14 August N b. 0110, 14 August N c. 1110, 13 August N d. 1510, 13 August 815: On 13 October , your 0515 zone time fix gives you a position of LAT 26°53.0'N, LONG 90°05.0'W. Your vessel is on course 068°T, and your speed is 7.8 knots. Local apparent noon (LAN) occurs at 1145 zone time, at which time a meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 54°51.5'. What is the latitude at 1200 ZT?
Y a. 27°13.3'N N b. 27°14.6'N N c. 27°15.7'N N d. 27°16.8'N 833: On 17 November , in DR position LAT 01°14.4'S, LONG 148°45.5'E, you take an ex-meridian observation of the planet Venus at upper transit. The chronometer time of the sight is 05h 31m 42s, and the chronometer error is 01m 50s fast. The sextant altitude (hs) is 64°41.1'. The index error is 1.8' off the arc, and your height of eye is 50 feet. What is the latitude at meridian transit?
N a. LAT 01°14.4'S N b. LAT 01°16.3'S Y c. LAT 01°18.0'S N d. LAT 01°20.2'S 1147: You have orders to drop off the empties at the fleeting area at Cairo Point and add five loaded tank barges to your tow. If you are turning for 9 mph and estimate the current at 1.5 mph, what is your ETA at Cairo?
N a. 2210, 22 June N b. 1741, 22 June Y c. 1423, 22 June N d. 1031, 22 June 1207: On 10 July , your 0930 zone time DR position is LAT 26°31.0'S, LONG 4°41.0'E. Your vessel is on course 308°T at a speed of 22.0 knots. What is the zone time of local apparent noon (LAN)?
N a. 1144 Y b. 1149 N c. 1153 N d. 1159 1393: 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 19s N c. 12h 42m 20s N d. 12h 38m 20s 1413: You complete changing out your tow and get underway enroute Ark City Tank Storage (mile 554.0 AHP) to deliver the tank barges. What is the distance you must travel from Cairo Point Light?
N a. 202.1 miles Y b. 400.7 miles N c. 554.2 miles N d. 605.8 miles 1547: 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 1642: From your 2129 position you reduce engine speed to 14 knots. What is the course to make good from your 2129 position to arrive 0.3 mile north of Lighted Whistle Buoy "NCA" (LL#375) assuming no set and drift?
N a. 216°T N b. 219°T Y c. 222°T N d. 225°T 1707: You are passing the Memphis Gage at 0405, 18 March. If you are turning for 8 mph and estimate the current at 2.3 mph,
what is your ETA at Cairo Point, IL (mile 954.5 AHP)?
N a. 0447, 19 Mar N b. 1052, 19 Mar N c. 1518, 19 Mar Y d. 1839, 19 Mar 1781: At 1524 ZT, on 14 June , in DR position LAT 30°51'N, LONG 30° 02'W, you observe an amplitude of the Moon. The center of the Moon is on the visible horizon and bears 103.9°pgc. The variation is 10°W. What is the gyro error?
N a. 1.8°W N b. 2.4°E N c. 2.2°E Y d. 2.0°E 1808: You are on map #4. What is the mile point of the facility known as Gulf Coast Grain Co.?
N a. mile 920 AHP N b. mile 921 AHP N c. mile 922 AHP Y d. mile 923 AHP 1858: On 22 April , your 1852 ZT DR position is LAT 23°54.5'
N, LONG 117°36.8'W. You observe an unidentified star bearing 129°T at an observed altitude (Ho) of 27°10.0'. The chronometer reads 02h 54m 53s and is 02m 51s fast. What star did you observe?
N a. Diphda N b. Betelgeuse Y c. Gienah N d. Arcturus 1950: The Greenville Gage reads 10.6 feet. The high point of your towboat is 54 feet above water. What is the vertical
clearance as you pass under the Greenville Highway Bridge?
N a. 44.4 feet N b. 54.2 feet Y c. 65.4 feet N d. 75.4 feet 1955: 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?
Y a. 8.7 mph N b. 7.7 mph N c. 6.3 mph N d. 5.6 mph 2241: At 1318 ZT, on 10 September , in DR position LAT 24° 05.8' N, LONG 058° 08.3' E, you observe an amplitude of the Moon. The upper limb of the Moon is on the visible horizon and bears 254° psc. Variation is 2° W. What is the deviation?
N a. 8.0°W N b. 8.0°E Y c. 4.0°W N d. 4.0°E 2584: At 1930 you obtain two radar ranges: Hammonasset Point at 4.1 miles and the East side of Falkner Island at 7.6 miles. What is your position?
N a. LAT 41°11.2'N, LONG 072°30.6'W Y b. LAT 41°11.7'N, LONG 072°29.2'W N c. LAT 41°11.8'N, LONG 072°29.6'W N d. LAT 41°11.9'N, LONG 072°29.2'W 2719: If the Gage at the Greenville Highway Bridge reads 22.0 feet, and the low water reference plane (LWRP) for Greenville (Bridge). MS is 11.3 feet. What is the water level in relation to the low water reference plane?
N a. 22.1 feet below the LWRP N b. 10.7 feet below the LWRP Y c. 10.7 feet above the LWRP N d. 0.5 feet below the LWRP 2788: The solid lines extending into the channel at mile 948 AHP are __________.
Y a. dikes N b. revetments N c. spoil areas N d. Meadwestvaco pipeline 2875: Your vessel is on a course of 316°T at 12 knots. At 2326 a light bears 289.5°T, and at 2354 the light bears 271°T. At what time and at what distance off will your vessel be when abeam of the light?
N a. 0014, 4.8 miles N b. 0018, 5.2 miles Y c. 0022, 5.6 miles N d. 0026, 6.4 miles 3283: While steaming at 17.5 knots, your vessel consumes 378 barrels of fuel oil per day. In order to reduce consumption to 194 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?
N a. 12.5 knots Y b. 14.0 knots N c. 15.5 knots N d. 16.8 knots 3288: While steaming at 13.5 knots, your vessel consumes 251 barrels of fuel oil per day. In order to reduce consumption to 129 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?
N a. 6.9 knots N b. 9.7 knots Y c. 10.8 knots N d. 12.7 knots 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 3464: You are underway on course 315°T at 14 knots. The current is 135°T at 1.9 knots. What is the course being made good?
N a. 130°T Y b. 315°T N c. 317°T N d. 322°T 3647: The true course between two points is 220°. Your gyrocompass has an error of 1°E. You make an allowance of 1° leeway for a north-northwest wind. What gyro course should be steered to make the true course good?
Y a. 220°pgc N b. 221°pgc N c. 222°pgc N d. 223°pgc 3760: Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 352°T, and the variation is 4°W. If the heading of your vessel at the time of the sighting is 359° per standard magnetic compass, what is the correct deviation?
Y a. 3°W N b. 7°E N c. 11°E N d. 11°W 10908: What is the velocity of the first maximum flood current in Lynnhaven Roads on 23 July 1983?
Y a. 0.4 knot N b. 0.5 knot N c. 0.8 knot N d. 1.3 knots 11405: At 2125 your GPS position is LAT 41°05.7'N, LONG 72°46.5'W. At 2208 your position is LAT 41°03.3'N, LONG 72°37.9'W. What was your course made good by standard magnetic compass?
Y a. 123°psc N b. 287°psc N c. 303°psc N d. 326°psc 11907: Your position is 3 miles due east of Montauk Point Light. What is the course to steer to arrive at LAT 41°00.0'N, LONG 71°30.0'W, if you are turning for 7.8 knots, the current is 130° at 1.2 knots, and a southerly wind causes 3° of leeway?
N a. 112°T Y b. 108°T N c. 105°T N d. 102°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°. 15063: At 0830, you want the latest weather forecasts for the Falkner Island area. On what frequency do you set your FM radio for this information?
N a. 2182 kHz N b. 162.80 Mhz N c. 156.65 Mhz Y d. 162.55 Mhz 15140: At 2100 your position is 40°44.1'N, 72°07.6'W. From this position, at which time will Montauk Point Light become visible if the luminous range of the light is 8 miles?
N a. 2215 Y b. 2221 N c. 2227 N d. 2235 15157: If there is no current, what is the course per gyro compass from your 1600 position to point "A" located 0.5 mile due east of Hog Island Lighted Bell Buoy "12"?
N a. 190°pgc N b. 193°pgc N c. 196°pgc Y d. 199°pgc 15308: From your 0315 position, what time can you expect to reach York Spit Channel Buoys "37" and "38"?
Y a. 0405 N b. 0412 N c. 0417 N d. 0423 15366: At 0615 you change course to 078°T. If there is no current, when will Falkner Island Light be abeam?
N a. 0750 N b. 0743 N c. 0735 Y d. 0730 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 15568: At 0520, you are on course 243°pgc at 12 knots. What is the course per standard magnetic compass?
N a. 262°psc Y b. 258°psc N c. 233°psc N d. 227°psc 15721: You are turning for 7.8 mph and estimate the current at 1.0 mph. What is your speed over the ground?
Y a. 8.8 mph N b. 7.9 mph N c. 7.8 mph N d. 6.8 mph 16008: While on a heading of 082°T, you sight Middle Ground Light in line with Old Field Point Light bearing 206° per standard magnetic compass. From this you can determine the __________.
N a. variation Y b. deviation table is correct for that heading N c. compass error is 17.5°E N d. deviation is 3.5°E for a bearing of 206° per standard magnetic compass 16039: From your 0820 position you change course to your rendezvous position, one mile due south of buoy "NH", speed 14.5 knots. You estimate the current to be 260°T at 0.5 knot. The wind is northwesterly at 20 knots and you estimate 2° leeway. What is your course per gyrocompass (pgc) to the rendezvous position, if you correct your heading for current and leeway?
N a. 039° N b. 041° N c. 043° Y d. 045° 16213: At 0715 you take the following bearings:
Race Rock Light 328°pgc
Little Gull Island Light 249°pgc
Mt. Prospect Antenna 036°pgc
Based on your 0715 fix, which statement is TRUE?
Y a. You are to the left of your track line. N b. Your fathometer reads about 265 fathoms. N c. You are in a cable area. N d. You are governed by the Inland Rules. 16364: If you proceed from your 0500 position to Chesapeake Bay via the inbound traffic lane. What is the distance to Yorktown, VA?
N a. 34.0 miles N b. 42.6 miles Y c. 51.7 miles N d. 62.1 miles 16511: At 0728, you change course to 080°T. When steady on course, the standard magnetic compass reads 097°. Which statement is TRUE?
N a. The gyro course is 083°pgc. N b. The magnetic heading is 090°. N c. The deviation is 1.0°E. Y d. The magnetic compass error is 17°W. 16567: From your 1915 position, you come left and set a course for Gardiners Point. At 1930, your position is LAT 41°12.7'N,
LONG 71°56.8'W. What type of bottom is charted at this position?
N a. Blue mud, gritty shells N b. Buried mussels, gritty shells Y c. Blue mud, gray sand N d. Bumpy mud with gravel surface 16619: The shoreline along Rocky Point should give a good radar return because __________.
N a. the lookout tower is marked with radar reflectors N b. of offshore exposed rocks N c. submerged reefs cause prominent breakers Y d. the shore is bluff and rocky