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 355: Orient Point Light will break the horizon at a range of about __________.
N a. 9.3 miles N b. 10.8 miles N c. 12.1 miles Y d. 13.9 miles 439: At 0337, fog closes in and you anchor under the following radar ranges and bearing:
South tip of Watch Hill Point 3.0 miles
East point of Fishers Island 1.4 miles
Latimer Reef Light 331°T
What is the approximate depth of water at your anchorage?
N a. 135 feet (40.9 meters) N b. 120 feet (36.4 meters) Y c. 100 feet (30.3 meters) N d. 83 feet (25.2 meters) 452: Determine the great circle distance and initial course from LAT 35°17.6'N, LONG 144°23.0'E to LAT 47°36.0'N, LONG 124°22.0'W.
N a. 3946 miles, 312°T Y b. 3931 miles, 048°T N c. 3881 miles, 042°T N d. 3718 miles, 318°T 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 491: At 0748, you take the following bearings:
Watch Hill Point Light bearing 020.5° pgc
Race Point Light bearing 267.5° pgc
What is the approximate depth of water at this position?
N a. 104 feet Y b. 130 feet N c. 175 feet N d. 325 feet 495: At 0815, visibility is excellent and you can see Montauk Point. Montauk Point is __________.
N a. low and rocky with scattered small pine trees N b. a low lying wetland Y c. a high sandy bluff N d. a flat wooded plain 518: Point Judith Harbor of Refuge __________.
N a. is used mostly by towing vessels N b. has a maximum depth of 14 feet at MHW Y c. is entered through the East Gap or the West Gap N d. is easily accessible in heavy southerly seas 524: The two wavy magenta lines running to Green Hill Point represent __________.
N a. recommended approaches to Green Hill Point N b. a restricted anchorage area Y c. submarine cables N d. prohibited fishing areas 825: On 15 August , an ex-meridian altitude of the Sun's lower limb at upper transit was observed at 1130 ZT. Your DR position is LAT 26°24.0'S, LONG 155°02.0'E, and your sextant altitude (hs) is 48°45.9'. The index error is 2.6' on the arc, and your height of eye is 51.5 feet. The chronometer time of the observation is 01h 27m 38s, and the chronometer error is 02m 14s slow. Find the latitude at meridian transit from the ex-meridian observation.
N a. LAT 26°32.6'S Y b. LAT 26°51.6'S N c. LAT 26°57.0'S N d. LAT 27°09.9'S 1099: On 6 April , your 0300 DR position is LAT 27°42'S, LONG 128°58'W. You are on course 097°T at a speed of 18 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0600 running fix. NP-0029
N a. LAT 27°15.5'S, LONG 128°12.4'W Y b. LAT 27°44.7'S, LONG 127°47.5'W N c. LAT 27°52.4'S, LONG 127°49.4'W N d. LAT 28°15.2'S, LONG 128°11.6'W 1140: At 0921, on 24 May, you are abreast the St. Catherine Bar Lt. (mile 348.6 AHP). If you are turning for 10.0 mph, what was the current since departure?
N a. 3.4 mph N b. 2.0 mph Y c. 1.7 mph N d. 1.4 mph 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 1178: On 27 August , your 0900 zone time DR position is LAT 24°25.0'N, LONG 94°20.0'W. Your vessel is on course 071°T at a speed of 20.0 knots. What is the zone time of local apparent noon (LAN)?
Y a. 1214 N b. 1208 N c. 1206 N d. 1158 1186: On 16 November , your 0800 zone time DR position is LAT 25°11.0'N, LONG 117°41.0'W. Your vessel is on course 252°T at a speed of 14.5 knots. What is the zone time of local apparent noon (LAN)?
N a. 1131 N b. 1135 Y c. 1139 N d. 1144 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 1341: What is the distance from the River Cement Co. Dock to the mouth of the Ohio River?
N a. 718.8 miles Y b. 780.8 miles N c. 953.5 miles N d. 981.5 miles 1344: At 2142, on January 3, you pass Sebastapol Light (mile 283.3 AHP). At 0137, January 4, you pass Fort Adams Light(mile 311.4 AHP). You have been turning for 9.0 mph. What was the current?
N a. 4.2 mph N b. 3.3 mph N c. 2.7 mph Y d. 1.8 mph 1745: What is the distance in river miles, from the mouth of the Yazoo Diversion Canal to the RR and Hwy bridge at Baton Rouge, LA?
N a. 365 miles N b. 310 miles N c. 265 miles Y d. 203 miles 1776: At 2231 ZT, on 14 July , in DR position LAT 34°06'S, LONG 149°47'W you observe an amplitude of Jupiter. The planet is about one Sun's diameter above the visible horizon and bears 257.1°psc. The variation is 15°E. What is the deviation?
N a. 0.5°E N b. 0.5°W N c. 1.5°W Y d. 2.5°W 1776: At 2231 ZT, on 14 July , in DR position LAT 34°06'S, LONG 149°47'W you observe an amplitude of Jupiter. The planet is about one Sun's diameter above the visible horizon and bears 257.1°psc. The variation is 15°E. What is the deviation?
N a. 0.5°E N b. 0.5°W N c. 1.5°W Y d. 2.5°W 1877: On 2 October , your 1845 DR position is LAT 28°09.2'S, LONG 167°48.1'E. You observe a faint star through a hole in the clouds at a sextant altitude (hs) of 63°29.1' bearing 237.5°T. The index error is 1.3' off the arc, and the height of eye is 42 feet. The chronometer reads 07h 46m 19s and is 0m 51s fast. What star did you observe?
Y a. Kappa Scorpii N b. Beta Ophiuchi N c. Alpha Arae N d. Beta Draconis 1959: The charts show two dashed lines crossing the river just south of St. Catherine Bar Light. What does this indicate?
N a. Overhead power lines N b. Louisiana-Mississippi ferry crossings N c. Two railroad trestles Y d. Two submerged oil pipelines 2117: You must arrive at your final destination by 0800. The distance from your 0300 position to the final destination is 40.5 miles. What minimum speed must be made good to arrive on time?
Y a. 8.1 knots N b. 8.5 knots N c. 9.3 knots N d. 9.6 knots 2655: You are steering 078°T, and a light is picked up dead ahead at a distance of 15.6 miles at 2316. You change course to pass the light 4.5 miles off abeam to port. If you are making 17 knots, what is your ETA at the position 4.5 miles off the light?
N a. 0006 Y b. 0009 N c. 0012 N d. 0015 2889: While underway you sight a light 11° on your port bow at a distance of 12 miles. Assuming you make good your course, what will be your distance off the light when abeam?
Y a. 2.3 miles N b. 3.1 miles N c. 3.9 miles N d. 4.5 miles 2901: You are steaming on a course of 198°T at 18.5 knots. At 0316 you observe a lighthouse bearing 235°T. At 0348 the lighthouse bears 259°T. What is your distance off at the second bearing?
Y a. 14.8 miles N b. 15.3 miles N c. 15.8 miles N d. 16.3 miles 3054: The propeller on a vessel has a diameter of 22.8 feet and a pitch of 19.3 feet. What would be the apparent slip if the vessel cruised 287 miles in a 24 hour day (observed distance) at an average RPM of 67?
N a. -6.3% Y b. +6.3% N c. -24.0% N d. +24.0% 3083: The speed necessary to reach port at a designated time is 18.7 knots. The propeller pitch is 24'03", and you estimate 3% positive slip. How many RPM's will the shaft have to turn?
Y a. 81 RPM N b. 87 RPM N c. 98 RPM N d. 104 RPM 3307: You have steamed 182 miles and consumed 16.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 392 miles?
N a. 28.3 tons Y b. 34.5 tons N c. 49.6 tons N d. 74.2 tons 3307: You have steamed 182 miles and consumed 16.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 392 miles?
N a. 28.3 tons Y b. 34.5 tons N c. 49.6 tons N d. 74.2 tons 3638: You desire to make good a true course of 007°. The variation is 5°E, magnetic compass deviation is 3°W, and gyrocompass error is 2°E. A southwest by west wind produces a 2° leeway. What is the course to steer per standard magnetic compass to make the true course good?
Y a. 003°psc N b. 005°psc N c. 007°psc N d. 009°psc 4008: You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2°E. The variation is 8°W. Find the deviation on a gyro heading of 037°.
HEADING HEADING HEADING
PSC PGC PSC PGC PSC PGC
358.5° - 350° 122.5° - 110° 239.5° - 230°
030.5° - 020° 152.0° - 140° 269.0° - 260°
061.5° - 050° 181.0° - 170° 298.0° - 290°
092.0° - 080° 210.0° - 200° 327.5° - 320°
Y a. 1.0°W N b. 1.5°W N c. 1.5°E N d. 2.0°E 13003: At 2102 your position is LAT 41°02.9'N, LONG 72°57.4'W. You are making turns for 16 knots. What is your ETA at a position 5 miles due south of Falkner Island Light?
N a. 2149 Y b. 2155 N c. 2159 N d. 2204 13404: Your vessel has become disabled and is dead in the water. Your GPS position is LAT 41°12.1'N, LONG 72°43.5'W. You decide to anchor at this position. Under normal conditions, how much anchor chain should you expect to put out?
N a. 80 to 190 feet N b. 190 to 240 feet Y c. 245 to 343 feet N d. 345 to 420 feet 14202: What is the minimum clearance for the bridge across the entrance to the Wind River at Home Valley, WA.?
N a. 14 feet Y b. 26 feet N c. 34 feet N d. 38 feet 14300: What is the height above the water of Government Island Upper Range, lower light?
Y a. 20 feet N b. 24 feet N c. 38 feet N d. 42 feet 15068: Long Sand Shoal __________.
N a. shoals gradually on the north and south sides Y b. is hard and lumpy N c. shows breakers when northerly winds exceed 10 knots N d. has gray sand with scattered shells 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 15318: You passed Cape Henry Light at 0730 outbound at maximum flood. What approximate current can you expect on entering Chesapeake Channel?
N a. Slack before ebb N b. Slack before flood N c. Ebb current Y d. Flood current 15342: At 1756 you determined your vessel's position to be 41°10.4'N, 71°59.2'W. From this position, you wish to change course to head for a point 5 miles west of Block Island North Light. With a reported set of 050°T, a drift of 2.0 knots and turning RPM's for 14 knots, which course should you steer to make good your desired course?
N a. 070°T N b. 075°T Y c. 080°T N d. 085°T 15513: If your height of eye is 35 feet (10.7 meters), what is the approximate geographic range of Block Island North Light?
N a. 7.4 nm N b. 13.0 nm N c. 14.3 nm Y d. 15.8 nm 15845: If you are going to head directly for Chesapeake Light from your 2111 fix, what is the course to make good?
Y a. 190°T N b. 193°T N c. 196°T N d. 199°T 15964: Your 1900 position is LAT 37°12.9'N, LONG 76°13.5'W. You change course to 323°pgc. What is the course per standard magnetic compass?
N a. 309°psc N b. 311°psc Y c. 329°psc N d. 331°psc 16016: At 0430, you change course and speed to make good 090°T at 10 knots. At 0433, you slow due to an engineering casualty and estimate you are making good 5.5 knots. At what time will Branford Reef Light bear 000°T?
N a. 0601 Y b. 0609 N c. 0620 N d. 0624 16064: At 2015, your vessel is at the Chesapeake Bay Bridge and Tunnel midway between buoys "13" and "14". If the height of tide is -1 foot (-.3 meter). What is the approximate depth under the keel?
N a. 51 feet (15.5 meters) Y b. 45 feet (13.6 meters) N c. 40 feet (12.1 meters) N d. 35 feet (10.6 meters) 16240: The speed that you can expect to make good, while steering to make good your desired course, is __________.
N a. 13.5 knots Y b. 14.3 knots N c. 15.1 knots N d. 15.9 knots 16264: Which statement about your 0400 position is true?
N a. You are governed by the Inland Rules of the Road. N b. Anchoring, trawling and fishing are prohibited. N c. The ocean floor is composed of shingle. Y d. You are within the Territorial Sea and the contiguous zone. 16513: At 0748, you change course to 160°T. What loran reading can you follow to remain on this course?
Y a. 9960-W-14651.0 N b. 9960-W-14660.0 N c. 9960-Y-43852.0 N d. 9960-Y-43943.8