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.
59: You pass Warnicott Bar Lt. at 1146, 24 May. What is your ETA off the Mhoon Landing Gage if you average 6.5 mph?
N a. 0909, 27 May Y b. 1528, 26 May N c. 0426, 26 May N d. 0152, 26 May 85: 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?
Y a. You should expect to encounter vessels crossing the river at mile 300.5 AHP N b. You are making 14.5 mph over the ground. 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. 194: At 2100, you alter course to 250°T and reduce speed to 7 knots. You enter the traffic separation scheme on the inbound side. At 2200, your fix shows you crossing a broken purple line on the chart, and you observe North Chesapeake Entrance Lighted Gong Buoy "NCD" to port. This area is __________.
N a. an area with local magnetic disturbances N b. a pilotage area Y c. a precautionary area centered on buoy "CBJ" N d. in inland waters 242: 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?
N a. 92 feet (28.0 meters) Y b. 97 feet (29.4 meters) N c. 108 feet (32.7 meters) N d. 115 feet (35.0 meters) 271: At 0844, the range to the north end of Falkner Island is 2.0 miles and the left tangent bearing is 102°T. What is the approximate charted depth of the water?
Y a. 29 ft (8.8 meters) N b. 22 ft (6.7 meters) N c. 19 ft (5.8 meters) N d. 14 ft (4.2 meters) 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 380: A vessel at LAT 21°18.5'N, LONG 157°52.2'W, heads for a destination at LAT 8°53.0'N, LONG 79°31.0'W. Determine the true course and distance by Mercator sailing.
N a. 081°T, 4617.5 miles N b. 081°T, 4915.8 miles Y c. 099°T, 4617.5 miles N d. 099°T, 4915.8 miles 392: A vessel at LAT 32°14.7'N, LONG 66°28.9'W, heads for a destination at LAT 36°58.7'N, LONG 75°42.2'W. Determine the true course by Mercator sailing.
N a. 058.2°T N b. 235.2°T Y c. 301.8°T N d. 348.3°T 454: Determine the great circle distance and initial course from LAT 26°00.0'S, LONG 56°00.0'W to LAT 34°00.0'S, LONG 18°15.0'E.
N a. 3705 miles, 153°T N b. 3841 miles, 068°T N c. 3849 miles, 248°T Y d. 3805 miles, 117°T 466: Determine the great circle distance and initial course from LAT 25°50.0'N, LONG 77°00.0'W to LAT 35°56.0'N, LONG 06°15.0'W.
N a. 3470 miles, 298°T N b. 3518 miles, 028°T Y c. 3616 miles, 062°T N d. 3718 miles, 118°T 523: At what time will you cross the 60 foot curve if you make good 12 knots?
N a. 0544 N b. 0541 N c. 0534 Y d. 0528 1252: On 13 August , your 0345 ZT DR position is LAT 21°35.0'
N, LONG 135°26.0'W. You are on course 052°T at a speed of 14 knots. What will be the zone time of sunrise at your vessel?
N a. 0443 N b. 0449 Y c. 0536 N d. 0540 1282: On 1 November , your 1600 zone time DR position is LAT 27°48'S, LONG 91°26'E. Your vessel is on a course of 327°
T at a speed of 16 knots. What will be the zone time of sunset at your vessel?
Y a. 1813 N b. 1821 N c. 1829 N d. 1836 1408: The horizontal clearance of the center span on the Baton Rouge RR and Highway 190 Bridge is __________.
N a. 443 N b. 500 Y c. 623 N d. 748 1422: What organization has an installation at the uppermost end of Carthage Revetment?
N a. U.S. Coast Guard Y b. River Cement Co. N c. U.S. Army Corps. of Engineers N d. International Paper Co. 1457: On 25 August , your 1926 zone time DR position is LAT 24°17.0'S, LONG 05°47.0'W. At that time, you observe Fomalhaut bearing 117°psc. The chronometer reads 07h 26m 52s, and the chronometer error is 00m 15s fast. The variation is 1.5°E. What is the deviation of the standard magnetic compass?
N a. 0.2°W N b. 0.4°E N c. 1.3°W Y d. 2.8°W 1494: On 5 August , your 0310 ZT position is LAT 09°02'N, LONG 21°08'W. You observe Polaris bearing 002°pgc. At the time of the observation the helmsman noted that he was heading 316°pgc and 329°psc. The variation is 15°W. What is the deviation for that heading?
N a. 0.0° N b. 1.5°W N c. 3.0°W Y d. 0.5°E 1802: You are turning for 10 mph and passing Hog Point ,LA. Angola reports that the current at Red River Landing is 4.5 mph. Which statement is TRUE?
N a. The main channel lies on the north side of the island you see ahead. N b. You are making 14.5 mph over the ground. N c. You would expect to find the more favorable current near the broken red line in the river. Y d. You should expect to encounter vessels crossing the river at mile 300.5 AHP. 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 1855: On 22 July , your 0442 ZT DR position is LAT 26°35.6'N, LONG 22°16.7'W. You observe an unidentified star bearing 112°T, at an observed altitude (Ho) of 44°16.0'. The chronometer reads 05h 39m 03s and is 03m 14s slow. What star did you observe?
N a. Hamal N b. Rigel Y c. Menkar N d. Acamar 1924: On 23 September , your 1836 DR position is LAT 25°18'S, LONG 162°23'E. You observe an unidentified star bearing 000°T at an observed altitude (Ho) of 26°18'. The chronometer reads 07h 34m 12s, and is 01m 54s slow. What star did you observe?
N a. Antares N b. Canopus N c. Achernar Y d. Vega 2185: At 1000 ZT, on 21 October , your DR position is LAT 29°00'N, LONG 134°40'E. Determine the computed altitude (Hc) of the Sun for the assumed position (AP) nearest to the above given latitude and longitude, given a chronometer time of 01h 00m 00s.
N a. Hc 42°30.6' N b. Hc 42°32.1' N c. Hc 42°34.2' Y d. Hc 42°35.7' 2206: What is the distance in river miles, from the new mouth of the White River to the RR and Hwy bridge at Baton Rouge, LA?
N a. 338 miles Y b. 365 miles N c. 400 miles N d. 454 miles 2286: You observe the lower limb of the Sun at a sextant altitude (hs) of 50°26.9' on 9 November . The index error is 1.5' on the arc. The height of eye is 56 feet (17 meters). What is the observed altitude (Ho)?
N a. 50°04.2' N b. 50°18.1' Y c. 50°33.5' N d. 50°41.4' 2684: You are steering 173°T, and a light is picked up dead ahead at a distance of 13.9 miles at 0054. You change course to pass the light 4.5 miles off abeam to port. If you are making 21 knots, what is your ETA at the position 4.5 miles off the light?
N a. 0122 N b. 0125 Y c. 0131 N d. 0134 2720: Which company utility crossing is at mile 529.7 AHP?
Y a. Texas Gas Transmission Corp. submerged gas pipeline N b. Tennessee Gas Co. submerged gas pipeline N c. ANR Pipeline Co. submerged gas pipeline N d. Trunkline Gas Co. submerged gas pipeline 2783: Which daymark would you see as you approach Red Store Light (mile 269.5 AHP)?
Y a. Green square N b. Green triangle N c. Green diamond N d. Red square 3268: Your vessel arrives in port with sufficient fuel to steam 595 miles at 14 knots. If you are unable to take on bunkers, at what speed must you proceed to reach your next port, 707 miles distant?
N a. 12.2 knots N b. 12.5 knots Y c. 12.8 knots N d. 14.4 knots 3609: Enroute from Rio to Montevideo, the true course is 215°; the gyro error is 2° west. A north wind causes 3° leeway. What course would you steer per gyrocompass to make good the true course?
Y a. 220°pgc N b. 214°pgc N c. 216°pgc N d. 210°pgc 10202: Your present position is LAT 41°05.5'N, LONG 72°38.0'W. Assuming that there is no set and drift, what course must you steer per standard magnetic compass (psc) to arrive at a position midway between New Haven Harbor Channel buoys #1 and #2?
N a. 137°psc N b. 309°psc Y c. 315°psc N d. 319°psc 10309: You are 3 miles due east of Montauk Point Light. What is the course per standard magnetic compass to LAT 41°00.0'N, LONG 71°30.0'W?
N a. 108°psc Y b. 122°psc N c. 124°psc N d. 130°psc 11504: At 1016 your position is LAT 41°07.6'N, LONG 71°38.5'W. At 1116 your position is LAT 41°01.4'N, LONG 71°29.4'W. What was the course made good between the two positions?
Y a. 132°T N b. 135°T N c. 140°T N d. 143°T 11506: At 1014 you depart the entrance to Lake Montauk with Light "1" close aboard. Your course is 066° per standard magnetic compass, and the speed is 8.6 knots. At 1238 your position is LAT 41°20.0'N, LONG 71°40.0'W. What is the speed made good?
Y a. 8.2 knots N b. 8.6 knots N c. 8.9 knots N d. 9.2 knots 13000: Your 2108 position is LAT 41°10.0'N, LONG 72°30.0'W. You are turning for 12.5 knots. What is your ETA at Buoy NH (LAT 41°12.1'N, LONG 72°53.8'W)?
N a. 2133 N b. 2227 Y c. 2235 N d. 2248 13300: The soundings on this chart are measured in __________.
Y a. feet N b. yards N c. fathoms N d. meters 14205: You are off the coast of Mexico and are taking a time tick for 1600. At approximately 1554, you hear the preparatory signal "VVVV de XDD" from the time signal station. Then you hear a series of 1 second dashes followed by a 9 second silent period and then a long 1.3 second dash. At the beginning of the long dash, your comparing watch reads 03h 59m 56s. When compared to the chronometer, the comparing watch reads 04h 01m 22s, and the chronometer reads 04h 02m 11s. What is the chronometer error?
N a. 0m 04s slow N b. 2m 15s slow Y c. 0m 45s fast N d. 1m 26s fast 14700: How many nautical miles are between mile 105 and mile 234 on the Columbia River?
Y a. 112.1 N b. 119.5 N c. 129.0 N d. 148.4 15610: At 1815, your position is LAT 37°01.0'N, LONG 75°42.7'W. If there is no current, what is the course per standard magnetic compass to arrive at a point 0.3 mile due north of North Chesapeake Entrance Lighted Whistle Buoy "NCA"
(LL#375)?
N a. 249.0° N b. 251.5° N c. 255.0° Y d. 257.0° 15642: At 2030 you take the following radar ranges:
Race Rock Light 2.1 miles
Latimer Reef Light 6.4 miles
If you estimate an average current of 080°T at 1.5 knots,
which course will you steer per gyrocompass to leave Endeavor Shoals Gong Buoy bearing 270°T at 1.5 miles?
N a. 115° N b. 118° N c. 124° Y d. 127° 15669: The area between Block Island and Montauk Point that is bounded by dashed magenta lines is a __________.
N a. naval exercise area N b. fish trap area Y c. submerged cable area N d. restricted navigation area 15712: 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 N c. LAT 41°11.4'N, LONG 72°41.0'W Y d. LAT 41°11.5'N, LONG 72°40.7'W 15823: As you approach Shreves cut-off you see Red River Landing Gage (302.4 AHP) which reads 6.2 feet. The Low Water Reference Plane (LWRP) for Red River is 10.6. Which of the following statements is TRUE?
Y a. This reading is at 4.4 ft. below the Low Water Reference Plane. N b. This reading is 6.2 ft. above the Low Water Reference Plane. N c. The depth of water at Red River Landing is 6.2 ft. N d. A vessel drawing 7 ft. would be able to pass through the locks at Lower Old River. 16043: As you cross the New Haven Outer Channel range, you observe the range in line bearing 335.5° per gyrocompass. The helmsman reports that he was heading 100° per gyrocompass,
and that the standard magnetic compass read 109° at the time of the observation. What are the gyro error and
deviation of the standard magnetic compass on this heading?
N a. Gyro error 2°E, deviation 3°E N b. Gyro error 0° , deviation 2°W N c. Gyro error 2°W, deviation 9°W Y d. Gyro error 2°W, deviation 3°E 16069: From your 2118 position, you steer a course of 288°T at an engine speed of 7.0 knots. Visibility is 2 miles. Height of eye is 12 feet (3.7 meters). At what time can you expect to see Old Point Comfort Light?
N a. The light is visible at 2118 N b. 2139 N c. 2201 Y d. 2232 16207: If you change course at 0610, what is the course to steer to a point where Little Gull Island Light bears 180°T at 0.7 mile (Point "A")?
N a. 072°pgc N b. 076°pgc Y c. 080°pgc N d. 084°pgc 16318: What true course and speed did you make good between 0730 and 0900?
N a. 273°T, 8.7 knots Y b. 277°T, 8.4 knots N c. 279°T, 8.0 knots N d. 284°T, 7.5 knots 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 16609: What was the speed made good between 2114 and 2142?
N a. 12.3 knots N b. 12.0 knots N c. 11.7 knots Y d. 11.4 knots 16740: At 2245 visibility improves and Montauk Point Light bears 355°pgc. At 2314 Montauk Point Light bears 331°pgc, and at 2329 the light bears 311°pgc. Based on your 2329 running fix which statement is TRUE?
N a. You are shoreward of the 90 foot curve. N b. Your fathometer reads about 136 feet. Y c. You are being set to the left of the track. N d. You allowed too much leeway for the easterly winds. 16842: From your 0939 position, you wish to change course in order to pass 0.3 mile north of Buoy "NCA" (LL#375) in the inbound traffic lane. You estimate the current to be 150°
T at 2.0 knots. What course should you steer to make good the desired course? Your speed is still 13.0 knots.
N a. 232°T N b. 235°T Y c. 245°T N d. 249°T