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.
48: The Clinch River empties into which river?
N a. Arkansas N b. Mississippi Y c. Tennessee N d. Ohio 74: You are turning for 7.8 mph and estimate the current at 1.0 mph. What is your speed over the ground?
N a. 6.8 mph N b. 7.8 mph N c. 7.9 mph Y d. 8.8 mph 103: You are approaching the Old River Control Structure (mile 314.5 AHP). The structure is in operation. Which of the following statements is TRUE?
N a. The maximum speeds permitted when passing the channel are 10 mph downbound and 7.5 mph upbound. N b. Tows must be no more than 110 feet wide when passing the inflow channel. Y c. You should navigate as close to the left descending bank of the Mississippi River as safety permits. N d. Tow length should not exceed 850 feet when passing the inflow channel. 324: The mean high water level at Old Point Comfort is __________.
N a. 3.3 feet (1.1 meters) Y b. 2.6 feet (0.8 meters) N c. 1.2 feet (0.4 meters) N d. 0.0 354: The south shore of Long Island Sound from Horton Point to Orient Point is __________.
Y a. bluff and rocky N b. low and marshy N c. marked by sandy beaches and wooded uplands N d. bound by gradual shoaling 402: A vessel at LAT 38°36'N, LONG 11°36'W, heads for a destination at LAT 24°16'N, LONG 71°52'W. Determine the true course and distance by Mercator sailing.
N a. 236.4°T, 2,916.9 miles N b. 254.4°T, 2,916.9 miles Y c. 254.4°T, 3,203.6 miles N d. 285.6°T, 3,203.6 miles 455: Determine the great circle distance and initial course from LAT 24°52.0'N, LONG 78°27.0'W to LAT 47°19.0'N, LONG 06°42.0'W.
Y a. 3593 miles, 048.1°T N b. 3457 miles, 053.3°T N c. 3389 miles, 042.4°T N d. 3367 miles, 045.0°T 471: The great circle distance from LAT 35°57.2'N, LONG 05°45.7'W to LAT 24°25.3'N, LONG 83°02.6'W is 3966.5 miles and the initial course is 283.7°T. The latitude of the vertex is 38°09.4'N. What is the longitude of the vertex?
N a. 28°02.6'W Y b. 28°18.2'W N c. 28°46.3'W N d. 28°54.7'W 533: You depart LAT 38°14'N, LONG 12°42'W, for LAT 38°14'N, LONG 46°09'W. What are the course and distance by parallel sailing?
N a. 090°T, 1576.5 miles N b. 090°T, 2879.0 miles Y c. 270°T, 1576.5 miles N d. 270°T, 2868.5 miles 559: At 0615, Stratford Point Light bears 292°pgc, Falkner Island Light bears 052°pgc, and Branford Reef Light bears 018°pgc. What was the current since 0530?
N a. 083° at 0.9 knots Y b. 083° at 1.2 knots N c. 263° at 1.2 knots N d. 263° at 0.9 knots 1144: What is the brown colored tint shown at Bordeaux Point Dykes (mile 681.0 AHP)?
N a. river gage N b. fish hatchery Y c. dredge material N d. levee 1225: You estimate the current at 2.0 mph. What is the speed over the ground?
N a. 9.5 mph Y b. 5.5 mph N c. 5.0 mph N d. 4.5 mph 1287: As you approach Buckridge Light (mile 412.5 AHP),
which type of daymark would you see on the light structure?
N a. Red diamond N b. Red triangle Y c. Green square N d. Green diamond 1306: What is your clearance as you pass under the Vicksburg Highway 80 Bridge (mile 437.8 AHP). if the Vicksburg Gage reads 14.8 feet and the highest point on your tow boat is 44.5 feet?
N a. 36 feet N b. 42 feet N c. 48 feet Y d. 57 feet 1409: As you pass Solitude Lt. (mile 249.0 AHP) which dayboard would you see?
N a. Green square Y b. Green diamond N c. Red triangle N d. Red diamond 1420: What company does NOT have a marine facility along the river bank in Helena (mile 661 to 665 AHP)?
N a. Helena Port Terminal, Inc. Y b. Riceland Food Corps.. N c. Quincy Soybean Co. N d. Texas Eastern Pipeline Co. 1475: On 26 February , your vessel's 1615 ZT DR position is LAT 25°14'S, LONG 57°22'W, when an azimuth of the Sun is observed. The chronometer time of the sight is 8h 13m 19s, and the Sun is bearing 266.0° per standard magnetic compass. The chronometer error is 01m 46s slow, and the variation in the area is 6°E. What is the deviation of the standard compass?
Y a. 1.7°E N b. 3.4°W N c. 7.7°E N d. 13.7°E 1666: On 23 October , your vessel's 1722 zone time DR position is LAT 27°36'S, LONG 96°16'W, when an amplitude of the Sun is observed. The Sun's lower limb is about 20 minutes of arc above the visible horizon and bears 246° per standard compass. Variation in the area is 14.0°E. The chronometer reads 11h 24m 19s and is 01m 43s fast. What is the deviation of the standard compass?
N a. 2.3°E N b. 2.7°E N c. 2.7°W Y d. 3.1°W 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. 1857: On 22 May , your 0437 ZT DR position is LAT 25°18.5'N, LONG 51°18.0'W. You observe an unidentified star bearing 097°T at an observed altitude (Ho) of 48°20.0'. The chronometer reads 07h 40m 40s and is 03m 24s fast. What star did you observe?
Y a. Markab N b. Diphda N c. Sabik N d. Hamal 1878: On 13 September , your 1830 ZT DR position was LAT 23°03'S, LONG 105°16'E when you observe a faint unidentifiable star through a hole in the clouds. The star bore 132.3°T at a sextant altitude (hs) of 29°34.6'. The chronometer read 11h 24m 39s and is 5m 08s slow. The index error is 1.0' off the arc, and the height of eye is 52 feet. What star did you observe?
Y a. Beta Gruis N b. Sigma Capricorni N c. Scheat N d. Alpha Indi 1913: On 14 January , your 0550 DR position is LAT 25°26.0'N, LONG 38°16.0'W. You observe an unidentified star bearing 212°T at an observed altitude (Ho) of 41°42.3'. The chronometer reads 08h 48m 51s, and is 01m 22s slow. What star did you observe?
Y a. Gienah N b. Kochab N c. Gacrux N d. Eltanin 2110: 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) 2242: At 1620 ZT, on 10 September , in DR position LAT 34° 03.8' N, LONG 050° 28.4' W, you observe an amplitude of the Moon. The Moon’s upper limb is observed on the visible horizon and bears 110.2° psc. The variation is 2° E. What is the deviation?
N a. 2.0°E N b. 2.0°W Y c. 1.2°E N d. 1.2°W 2285: You observe the lower limb of the Sun at a sextant altitude (hs) of 45°49.7' on 13 November . The index error is 1.0' on the arc. The height of eye is 61 feet (18.6 meters). What is the observed altitude (Ho)?
N a. 45°59.3' Y b. 45°56.4' N c. 45°52.9' N d. 45°49.8' 2333: You observe the lower limb of the Sun at a sextant altitude (hs) of 37°47.2' on 11 October . The index error is 3.0' off the arc. The height of eye is 63 feet (19.2 meters). What is the observed altitude (Ho)?
N a. 37°25.2' N b. 37°42.5' N c. 37°51.5' Y d. 37°57.5' 2583: You lose GPS and are navigating solely on LORAN. What LORAN line would you follow to leave Six Mile Reef buoy "8C" abeam to port at 1.0 mile?
N a. 9960-W-14885.0 N b. 9960-Y-43980.5 Y c. 9960-Y-43982.0 N d. 9960-Y-43983.5 2660: You are steering 287°T, and a light is picked up dead ahead at a distance of 19.4 miles at 0419. You change course to pass the light 4 miles off abeam to starboard. If you are making 13 knots, what is your ETA at the position 4 miles off the light?
N a. 0541 N b. 0544 Y c. 0547 N d. 0550 2681: Your vessel is on course 312°pgc and you sight a lighthouse dead ahead at a range of 10 miles. The gyro error is 3°E. What course would you steer to leave the lighthouse 1.5 miles abeam to starboard?
N a. 309°pgc Y b. 304°pgc N c. 309°T N d. 304°T 2699: You are underway on course 137°T at a speed of 16.2 knots. You sight a rock bearing 134°T at a radar range of 4.6 miles at 1508. If you change course at 1514, what is the course to steer to leave the rock abeam to port at 1.5 miles?
Y a. 162°T N b. 158°T N c. 154°T N d. 151°T 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 2853: Your vessel is on a course of 343°T at 14 knots. At 2156 a light bears 320.5°T, and at 2217 the light bears 298°T.
At what time and at what distance off will your vessel be when abeam of the light?
Y a. 2232, 3.4 miles N b. 2235, 4.3 miles N c. 2228, 4.9 miles N d. 2241, 6.9 miles 3088: If the pitch of the propeller is 21.5 feet, and the revolutions per day are 96,666, calculate the day's run allowing 9% negative slip.
N a. 311.1 miles N b. 341.8 miles N c. 357.9 miles Y d. 372.6 miles 3642: You are steering 154° per gyrocompass. The wind is northeast by east, causing 4° leeway. The gyro error is 3° east, variation is 11° west, and deviation is 7°E. What is the true course made good?
N a. 151°T N b. 158°T Y c. 161°T N d. 164°T 10204: 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 5 miles due south of Saybrook Breakwater Light?
N a. 089°psc Y b. 080°psc N c. 077°psc N d. 066°psc 10308: You are 3 miles due east of Montauk Point Light. What is the course per standard magnetic compass to a position 1.5 miles due east of Watch Hill Point Light?
N a. 341°psc N b. 337°psc N c. 011°psc Y d. 007°psc 11708: Your position is LAT 37°00.9'N, LONG 75°30.0'W. What is the course to steer per 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 339°T at 1.3 knots, and a northwesterly wind is causing 3° of leeway?
Y a. 265°psc N b. 267°psc N c. 269°psc N d. 271°psc 12902: Your 1312 position is LAT 37°10.9'N, LONG 75°29.6'W. You are turning for 8.3 knots. What is your ETA at LAT 37°21.9'N, LONG 75°42.6'W?
N a. 1449 N b. 1456 Y c. 1502 N d. 1511 13410: You plan to anchor your vessel at LAT 41°05.1'N, LONG 72°59.3'W. Assuming that normal conditions exist, how much anchor cable should you put out?
N a. 150 to 300 feet N b. 300 to 440 feet Y c. 440 to 600 feet N d. 640 to 750 feet 15320: Inbound, the color of Cape Henry Light will __________.
Y a. change before you reach Chesapeake Channel Lighted Bell Buoy "2C" N b. change after you reach Chesapeake Channel Lighted Bell Buoy "2C" N c. remain the same N d. alternate regardless of your position 15368: At 0705, the gyro loses power. At 0730, you are on course 092° per standard magnetic compass (psc). Falkner Light bears 356°psc, Horton Point Light bears 123°psc, and Kelsey Point Breakwater Light bears 048°psc. What is the position of your 0730 fix?
N a. LAT 41°06.7'N, LONG 72°36.1'W N b. LAT 41°06.8'N, LONG 72°36.0'W Y c. LAT 41°07.0'N, LONG 72°36.2'W N d. LAT 41°07.2'N, LONG 72°36.1'W 15464: What is the course per standard magnetic compass on the southern leg of York Spit Channel between buoys "15" and "23"?
N a. 319° N b. 322° Y c. 339° N d. 341° 15739: Your 1900 position is LAT 40°45.5'N, LONG 72°03.0'W. Your course is 046°T, and your engines are turning RPM's for 9 knots. At your 1939 DR position, what is the expected relative bearing of Montauk Point Light on the port bow?
N a. 024° relative Y b. 028° relative N c. 032° relative N d. 036° relative 15741: At 2050 Montauk Point Light is bearing 337° true at a range of 8 nm, From this position, you change course in order to pass 1 mile due east of Montauk Point Lighted Whistle Buoy "MP". If there are no set and drift, what course must you steer?
Y a. 024°T N b. 028°T N c. 032°T N d. 036°T 15838: At 2000 Hog Island Lighted Bell Buoy "12" bears 199° true and Buoy "GM" bears 249° true
Your position is __________.
N a. 37°35.0'N, 75°32.2'W Y b. 37°23.5'N, 75°32.2'W N c. 37°03.5'N, 75°32.2'W N d. 37°03.5'N, 75°02.2'W 16360: What is the course to steer per gyro compass from the anchorage to point "A" if westerly winds are causing 3° of leeway?
N a. 178°pgc N b. 182°pgc N c. 184°pgc Y d. 187°pgc 16439: While you are at anchor, what will serve as a positive warning that you are drifting towards the wrecks located to the NW and SW of your 2215 position?
N a. A constant bearing on New Point Comfort Light. Y b. The bearing of Wolf Trap Light changing to the right N c. Increasing soundings N d. The bearing of Wolf Trap Light changing to the left 16441: When you get underway, you will take the most direct route to buoy "CBJ", while remaining west of York Spit Channel. You will be turning for 9.7 knots and estimate an average ebb of 0.3 knot during the transit. How long will it take to steam from the anchor position to buoy "CBJ"?
N a. 2h 16m Y b. 2h 33m N c. 2h 42m N d. 2h 51m 16566: If you were to head into New London Harbor, which chart should you switch to for the best detail?
N a. 13209 N b. 13212 Y c. 13213 N d. 13214 16846: Your vessel's heading is 330°pgc and 345°psc with a 2°E gyro error. What is the deviation on this heading?
N a. 0° Y b. 3°W N c. 4°E N d. 7°W