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.
166: If the Bayou Sara Gage reads -0.5 feet, the Low Water Reference Plane is 5.25. What is the water level in relation to the low water reference plane?
N a. 0.5 foot below the plane N b. 0.5 foot above the plane N c. 5.25 feet above the plane Y d. 5.75 feet below the plane 192: At 2100, Cape Charles Light bears 321°pgc, and Cape Henry Light bears 247°pgc. Your latitude is __________.
N a. 37°00.6'N N b. 37°00.0'N N c. 36°59.7'N Y d. 36°59.4'N 206: At 1850, you obtain the following bearings and distances:
Montauk Point 189°pgc 8.7 miles
Watch Hill Light 340°pgc 5.7 miles
What true course did you make good between 1830 and 1850?
Y a. 293°T N b. 297°T N c. 299°T N d. 305°T 225: 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. 274°psc N b. 280°psc Y c. 283°psc N d. 286°psc 253: According to the DR track line from your 0100 position, how far off Roanoke Point Shoal Buoy "5" should you be when the buoy is abeam?
N a. 1.8 mile N b. 1.3 mile Y c. 0.8 mile N d. 0.2 miles 426: The broken magenta line which runs parallel to the shore between Roanoke Point and Mattituck Inlet marks a __________.
Y a. fish trap area N b. pipeline N c. demarcation line N d. cable area 479: The great circle distance from LAT 24°25.3'N, LONG 83°02.6'W to LAT 35°57.2'N, LONG 5°45.7'W is 3966.5 miles. Determine the latitude of the vertex.
N a. 38°46.2'N N b. 38°16.4'N Y c. 38°09.4'N N d. 37°57.3'N 499: Which chart should you use to enter Great Salt Pond?
N a. 13205 N b. 13207 N c. 13214 Y d. 13217 605: At 0915 ZT, on 26 July , you depart Yokohama, LAT 35°27.0'N, LONG 139°39.0'E (ZD -9). You are bound for Seattle, LAT 47°36.0'N, LONG 122°22.0'W, and you estimate your speed of advance at 14 knots. The distance is 4,245 miles. What is your estimated ZT of arrival at Seattle?
Y a. 0728, 7 August N b. 1528, 7 August N c. 0028, 8 August N d. 1528, 8 August 610: At 0820 zone time, on 10 April , you depart Yokohoma, LAT 35°27.0'N, LONG 139°39.0'E (ZD -9). You are bound for Honolulu, LAT 21°18.5'N, LONG 157°52.2'W (ZD +10) and you estimate your speed of advance at 17.5 knots. The distance is 3,397 miles. What is your estimated zone time of arrival at Honolulu?
N a. 0127, 17 April Y b. 1527, 17 April N c. 0127, 18 April N d. 0927, 18 April 680: On which voyage would a great circle track provide a significant savings in distance to steam, when compared to a rhumb line track? (Use gnomonic tracking chart WOXZC 5270.)
N a. Valdez, AK, to the Marquesas Islands (LAT 8°00'S, LONG 140°00'W) N b. San Francisco to Kodiak, AK N c. Christmas Island (LAT 2°00'N, LONG 157°30'W) to Singapore via LAT 3°00'N, LONG 126°00'E Y d. Guam (LAT 14°00'N, LONG 145°00'E) to Seattle via LAT 47°30'N, LONG 125°30'W 983: On 17 January , your 0730 zone time position was LAT 22°26.0'N, LONG 152°17.0'E. Your vessel was steaming on course 136°T at a speed of 17.0 knots. An observation of the Sun's lower limb was made at 1015 ZT. The chronometer read 00h 13m 23s and was slow 01m 49s. The observed altitude (Ho) was 40°25.7'. LAN occurred at 1222 zone time. The observed altitude (Ho) was 47°48.1'. What was the longitude of your 1200 zone time running fix?
N a. LONG 153°04.2'E N b. LONG 153°08.3'E Y c. LONG 153°13.1'E N d. LONG 153°18.6'E 1188: On 9 February , your 0830 zone time DR position is LAT 22°19.0'N, LONG 64°37.0'E. Your vessel is on course 128°
T at a speed of 19.0 knots. What is the zone time of local apparent noon (LAN)?
Y a. 1152 N b. 1156 N c. 1201 N d. 1205 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 1307: After entering Milliken Bend (mile 455 AHP) you wish to locate the river service in Madison Parish, Louisiana. The river service is indicated by the square containing which number?
Y a. 5 N b. 4 N c. 3 N d. 2 1497: On 19 November , your 0146 ZT position is LAT 33°48'N, LONG 25°22'E. You observe Polaris bearing 359.8°pgc. At the time of the observation the helmsman noted that he was heading 224°pgc and 222.5°psc. The variation is 2°E. What is the deviation for that heading?
N a. 2.0°E N b. 0.5°E Y c. 1.0°W N d. 1.5°W 1538: At 1032 on 24 June, you pass Carolina Landing Light(508.8 AHP). What has been the average current since 2350, 23 June, if you have been making turns for 9.0 mph?
N a. 8.5 mph N b. 5.7 mph N c. 1.5 mph Y d. 0.5 mph 1661: On 11 May , in DR position LAT 28°13.7'N, LONG 168°36.3'E, you observe an amplitude of the Sun. The Sun's center is on the celestial horizon and bears 283°psc. The chronometer reads 07h 13m 19s and is 02m 56s slow. Variation in the area is 13°E. What is the deviation of the standard magnetic compass?
N a. 5.2°W Y b. 5.6°W N c. 7.4°E N d. 7.8°E 1766: What type of daymark will you see as you approach Black Hills Light (mile 337.7 AHP)?
N a. Private aid - no daymark N b. Red square N c. Red diamond Y d. Red triangle 1810: You are turning for 9 mph, approaching Fort Adams Lt. (mile 311.4 AHP) and it is reported that the current at Knox Landing is estimated at 4.5 MPH. Which of the following statements is TRUE?
Y a. Tows and other vessels should navigate as close to the left descending bank as safety will permit. N b. The inflow channel is a navigable channel for any vessel. N c. You are making 13.5 mph over the ground. N d. Old River Control Structure Light and Fort Adams Light may be used as range lights when entering the outflow channel. 1837: The Arkansas City Yellow Bend revetment on the LMR extends from mile _________.
Y a. 555.0-549.7 RDB N b. 549.0-548.5 RDB N c. 556.9-554.9 LDB N d. 548.5-546.5 LDB 1841: 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. 1.8 mph N b. 2.1 mph Y c. 4.4 mph N d. 5.6 mph 1951: 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 2053: At 2342, on 25 August, 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 9 mph?
Y a. 1.8 mph N b. 2.1 mph N c. 4.4 mph N d. 5.6 mph 2056: What are the color and shape of Togo Island daymark at mile 415.0 AHP?
Y a. Green - Square N b. Green - Diamond N c. Red - Triangle N d. Red - Square 2158: On 26 May , your vessel's 1906 zone time position is LAT 27°16.0'N, LONG 24°37.0'W. At that time, a sextant observation of the planet Jupiter was made. The sextant altitude is 63°27.6', and the chronometer reads 09h 05m 16s. The index error is 5.2' on the arc, and the chronometer error is 01m 25s slow. Your height of eye is determined to be 52.6 feet. What is the (Zn) of this sight using the assumed position?
N a. 011.3°T Y b. 168.7°T N c. 191.3°T N d. 348.7°T 2208: 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 2238: At 1430 ZT, on 16 April , in DR position LAT 34° 03.8' N, LONG 061° 02.5'W, you observe an amplitude of the Moon. The center of the Moon is on the visible horizon and bears 095.2°psc. The variation is 12°W. What is the deviation?
N a. 1.7°W N b. 1.7°E N c. 1.9°W Y d. 1.9°E 2671: While on a course of 349°T, a light bears 13° on the starboard bow at a distance of 10.8 miles. What course should you steer to pass 2.5 miles abeam of the light leaving it to starboard?
N a. 346°T Y b. 349°T N c. 352°T N d. 355°T 2677: You sight a light 9° on your starboard bow at a distance of 21 miles. Assuming you make good your course, what will be your distance off the light when abeam?
Y a. 3.3 miles N b. 3.7 miles N c. 4.0 miles N d. 4.3 miles 2690: While on a course of 066°pgc, a light bears 13° on the port bow at a distance of 12.3 miles. What course should you steer to pass 4 miles abeam of the light leaving it to port?
N a. 067°pgc Y b. 072°pgc N c. 079°pgc N d. 085°pgc 3286: While steaming at 14.5 knots, your vessel consumes 242 barrels of fuel oil per day. In order to reduce consumption to 152 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?
N a. 9.1 knots N b. 10.2 knots N c. 11.5 knots Y d. 12.4 knots 3309: You have steamed 142 miles and consumed 15.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 472 miles?
N a. 36.5 tons Y b. 49.9 tons N c. 53.8 tons N d. 61.4 tons 3607: You desire to make good 152°T. The magnetic compass deviation is 4°E, the variation is 5°E, and the gyro error is 3°E. A southwesterly wind produces a 4° leeway. Which course would you steer per standard compass to make good the true course?
N a. 137°psc N b. 141°psc N c. 143°psc Y d. 147°psc 11300: At 1256 your GPS position is LAT 36°57.0'N, LONG 75°41.0'W. At 1336 your position is LAT 37°07.5'N, LONG 75°39.1'W. What was the speed made good between the fixes?
N a. 14.6 knots N b. 15.2 knots Y c. 16.0 knots N d. 18.6 knots 12200: You are on course 119°psc. You sight New Haven Outer Channel Range Rear Light in line with the Outer Channel Range Front Light bearing 346° per standard magnetic compass. This indicates that __________.
N a. you should swing the vessel to determine the deviation Y b. the existing deviation table is correct for that heading N c. your compass is affected by a local magnetic disturbance N d. the compass error is 16°W 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 12708: You are on course 302° per standard magnetic compass when you take the following bearings: Little Gull Island Light 283°psc Race Rock Light 311°psc Latimer Reef Light 027°psc What is your position?
N a. LAT 41°12.2'N, LONG 71°57.6'W N b. LAT 41°12.4'N, LONG 71°57.4'W N c. LAT 41°12.4'N, LONG 71°57.9'W Y d. LAT 41°12.6'N, LONG 71°57.6'W 12901: Your 1152 position is LAT 37°23.9'N, LONG 76°05.5'W. You are turning for 10.3 knots. What is your ETA at Trestle C of the Chesapeake Bay Bridge and Tunnel if you follow York Spit Channel?
Y a. 1404 N b. 1349 N c. 1342 N d. 1339 14100: Your vessel is awaiting lockage at Bonneville Lock. The staff gauge on the guide wall reads 18'-06". What is the maximum vessel draft allowed to enter the lock?
N a. 17'-00" Y b. 17'-06" N c. 18'-00" N d. 18'-06" 15056: You are in New Haven Outer Channel and sight the range markers in line directly over the stern. Your heading at the time is 168° per standard magnetic compass. What is the magnetic compass error?
Y a. 15°W N b. 1°W N c. 1°E N d. 0° 15058: At 0740, you obtain the following radar data:
Branford Reef Light bears 248° true @ 3.0 nm
What is your position?
N a. LAT 41°12.0'N, LONG 72°51.3'W N b. LAT 41°12.0'N, LONG 72°51.8'W N c. LAT 41°12.1'N, LONG 72°51.5'W Y d. LAT 41°12.1'N, LONG 72°52.0'W 15058: At 0740, you obtain the following radar data:
Branford Reef Light bears 248° true @ 3.0 nm
What is your position?
N a. LAT 41°12.0'N, LONG 72°51.3'W N b. LAT 41°12.0'N, LONG 72°51.8'W N c. LAT 41°12.1'N, LONG 72°51.5'W Y d. LAT 41°12.1'N, LONG 72°52.0'W 15668: At 0839, Montauk Pt. Light is bearing 205°T at a radar distance of 6.6 miles. What is your speed made good from your 0815 position?
N a. 8.2 knots Y b. 9.2 knots N c. 10.0 knots N d. 10.5 knots 15740: At 2000 Montauk Point Light bears 010°T. At 2030 Montauk Point Light bears 348°T. Assuming that you are making good your course of 046°T and a speed of 9 knots, what is your 2030 running fix position?
N a. LAT 40°53.9'N, LONG 71°51.3'W Y b. LAT 40°54.2'N, LONG 71°50.2'W N c. LAT 40°55.9'N, LONG 71°49.0'W N d. LAT 40°56.7'N, LONG 71°48.1'W 15869: After you raise Stratford Shoal Middle Ground Light, how will the bearings change if you pass to the north of the light?
Y a. The bearings will change to the left. N b. The bearings will remain steady. N c. The bearings will change to the right. N d. Magnetic compass bearings will change to the left and gyro compass bearings will change to the right. 16217: Which statement describes the shore between Watch Hill Point and Point Judith?
N a. Low, rocky cliffs with heavily wooded hills inland Y b. Sandy beaches broken by rocky points N c. Sand dunes and beaches with a mud and sand bottom N d. Wooded, barren hills with isolated prominent buildings 16442: The area bounded by the buoys "C51" to "C47A" to "M6" to "M14", west of your anchorage, is __________.
N a. a training area for naval small craft N b. restricted to oil and mineral exploration N c. an anchorage for ammunition barges Y d. a fish trap area 16706: At 0520, you take the following observations:
Point Judith Light 032°pgc
Point Judith Harbor of Refuge
Main Breakwater Center Light 308°pgc
What is the position of your 0520 fix?
N a. LAT 41°20.8'N, Long 71°30.3'W Y b. LAT 41°20.8'N, Long 71°29.7'W N c. LAT 41°20.6'N, Long 71°30.0'W N d. LAT 41°20.5'N, Long 71°29.8'W