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.
70: What is the vertical clearance of the Natchez-Vidalia Highway Bridge (westbound) when the river level is the same as the Low Water Reference Plane (6.5 feet)?
N a. 125.6 ft Y b. 119.5 ft N c. 108.3 ft N d. 102.2 ft 102: The latest available information on the channel conditions above Baton Rouge that includes recommended course and the latest buoy information is found in the __________.
Y a. Local Notice to Mariners N b. Waterways Journal N c. Sailing Directions N d. Corps. of Engineers maps 181: You are on course 192°pgc at 12 knots. At 1900 you fix your position using the following information:
Sand Shoal Inlet South Light bearing 244°true @ 11 nm
What is your latitude and longitude at 1900?
N a. LAT 37°21.5'N, LONG 75°34.8'W N b. LAT 37°22.0'N, LONG 75°34.9'W N c. LAT 37°22.2'N, LONG 75°35.0'W Y d. LAT 37°22.6'N, LONG 75°35.7'W 208: From your 1850 fix, you come left to a course of 280°T,
while maintaining a speed of 10 knots. Which of the following combinations of available Loran-C lines would be best for position determination?
N a. 9960-X and 9960-Y Y b. 9960-Y and 9960-W N c. 9960-W and 9960-X N d. All are equally good. 228: Your height of eye is 25 feet (7.6 meters). If the visibility is 5.5 nautical miles, what is the luminous range of Wolf Trap Light?
N a. 17.0 miles N b. 16.0 miles N c. 12.0 miles Y d. 7.5 miles 291: What is the height above water of Davis Creek Channel Light "1"?
Y a. 15 feet (4.6 meters) N b. 17 feet (5.2 meters) N c. 19 feet (5.8 meters) N d. 24 feet (7.3 meters) 291: What is the height above water of Davis Creek Channel Light "1"?
Y a. 15 feet (4.6 meters) N b. 17 feet (5.2 meters) N c. 19 feet (5.8 meters) N d. 24 feet (7.3 meters) 313: At 1400, your position is LAT 37°14.7'N, LONG 76°22.3'W. From this position, you head for the York River Entrance Channel Buoy "17". What should you steer per standard magnetic compass for this heading?
Y a. 125°psc N b. 122°psc N c. 119°psc N d. 108°psc 315: From your 1430 fix, you order turns for 8 knots. You steer 045°T and experience no set and drift. At what time would you expect to have New Point Comfort Spit Light "4" abeam?
N a. 1510 N b. 1504 Y c. 1458 N d. 1452 330: Which chart could you use for greater detail of the area at the south end of York Spit Channel?
N a. 12254 N b. 12226 N c. 12224 Y d. 12222 359: You are turning for 9 knots, a westerly wind is causing 3°
of leeway, and the current is 320°T at 1.2 knots. What true course should you steer to remain in the northern leg of York Spit Channel?
N a. 203°T N b. 197°T Y c. 194°T N d. 191°T 435: Which course should you change to per standard magnetic compass as you pass SW Ledge Light to remain in the channel?
N a. 026°psc Y b. 022°psc N c. 014°psc N d. 007°psc 571: At 0845, you are approaching the entrances to Thimble Shoal Channel. What channel must you use?
N a. The South Auxiliary Channel or Thimble Shoal Channel, but you must remain on the right hand side of the channel. Y b. The South Auxiliary Channel since your draft is less than 25 feet (7.6 meters) and you are not a passenger vessel. N c. The North Auxiliary Channel since you are going to turn to a northerly heading near buoy "12". N d. You are not permitted to use any of the channels, but must remain outside the buoyed channel line. 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 1009: On 22 February , your 0800 zone time position is LAT 24°16'S, LONG 95°37'E. Your vessel is on course 126°T at a speed of 14 knots. An observation of the Sun's lower limb is made at 0945 zone time. The chronometer reads 03h 47m 22s, and the chronometer error is 02m 37s fast. The observed altitude (Ho) is 57°02.1'. LAN occurs at 1148 zone time, and a meridian altitude of the Sun's lower limb is made. The observed meridian altitude (Ho) is 75°22.3'.
Determine the vessel's 1200 zone time position.
N a. LAT 24°49.3'S, LONG 96°24.0'E N b. LAT 24°49.3'S, LONG 96°27.2'E Y c. LAT 24°52.2'S, LONG 96°24.0'E N d. LAT 24°52.2'S, LONG 96°27.2'E 1248: What is the distance in river miles, from the new mouth of the White River to the Petroleum Fuel & Terminal Co. (mile 144.6 AHP)?
Y a. 454 miles N b. 427 miles N c. 384 miles N d. 370 miles 1679: On 13 October , your vessel's 1722 zone time DR position is LAT 27°36'S, LONG 136°16'E, when an amplitude of the Sun is observed. The Sun's center is on the celestial horizon and bears 266° per standard magnetic compass. Variation in the area is 2°W. The chronometer reads 08h 24m 19s and is 01m 43s fast. What is the deviation of the standard magnetic compass?
N a. 2.3°E Y b. 2.8°W N c. 4.8°E N d. 6.8°W 1731: What is the total length of the trip?
N a. 910.6 miles Y b. 901.2 miles N c. 900.3 miles N d. 873.7 miles 1780: At 1523 ZT, on 14 June , in DR position LAT 31°58'S, LONG 48°42'W you observe an amplitude of the Moon. The center of the Moon is on the visible horizon and bears 118.0°psc. The variation is 10°W. What is the deviation?
N a. 2.5°W Y b. 2.1°W N c. 1.7°W N d. 1.7°E 1909: On 22 March , your 1834 DR position is LAT 26°13.5'S, LONG 108°36.5'W. You observe an unidentified star bearing 294°T at an observed altitude (Ho) of 33°02.7'. The chronometer reads 01h 32m 37s, and is 01m 50s slow. What star did you observe?
N a. Regulus Y b. Menkar N c. Rigel N d. Alphard 1960: The low water reference plane for Greenville Highway Bridge is 11.3 feet. If the Gage at the Greenville Highway Bridge reads 22.0 feet, what is the water level in relation to the low water reference plane (LWRP)?
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 2005: On 17 July , your 1951 zone time DR position is LAT 24°26.0'N, LONG 51°16.0'W. Considering their magnitude, azimuth, and altitude, which group includes the three bodies best suited for a fix at star time?
N a. Hadar, Deneb, Alphard N b. Regulus, Venus, Antares N c. Mars, Vega, Dubhe Y d. Kochab, Jupiter, Rasalhague 2178: On 26 July , your 1901 ZT position is LAT 28°28'N, LONG 157°16'E when you take an observation of Jupiter. The chronometer at the time of the sight reads 08h 54m 34s and is 06m 24s slow. The sextant altitude (hs) is 33°51.5'. The index error is 2.8'off the arc, and the height of eye is 48 feet. What are the azimuth (Zn) and intercept (a) for this sight using the assumed position?
N a. Zn 110.8°, a 32.0' T N b. Zn 249.2°, a 32.0' A Y c. Zn 248.2°, a 34.2' T N d. Zn 290.8°, a 44.2' A 2213: Controlling depth of a channel __________.
Y a. is the least depth within the limits of the channel N b. is the greatest depth within the limits of the channel N c. permits the safe use of the channel to drafts of more than that depth N d. is the designed dredging depth of a channel constructed by the U.S. Army Corps. of Engineers 2294: You are passing Eastwood Lt. (mile 849.3 AHP) and the map indicates that Bunge Grain facility would be located at the square with number __________.
N a. 4 N b. 6 N c. 8 Y d. 10 2589: From the 2130 position, you steer 236°T at 10 knots. A strong northerly wind is causing 4° of leeway. What course must you steer per standard compass, to make good 236°T?
N a. 232° psc N b. 240° psc N c. 244° psc Y d. 252° psc 2781: Your engine speed is 9.8 mph and you estimate the current at 1.6 mph. What is your speed over the ground?
N a. 11.0 mph N b. 9.8 mph N c. 8.6 mph Y d. 8.2 mph 2906: You are steaming on a course of 211°T at 17 knots. At 0417 a light bears 184°T, and at 0428 the same light bears 168°T. What is the distance off the light at 0428?
N a. 3.4 miles N b. 4.6 miles Y c. 5.1 miles N d. 5.6 miles 3291: While steaming at 19.5 knots, your vessel burns 297 bbls of fuel per day. What will be the rate of fuel consumption if you decrease speed to 15 knots?
Y a. 135 bbls N b. 176 bbls N c. 229 bbls N d. 243 bbls 10200: YourGPS position is LAT 41°10.0'N, LONG 72°52.5'W. What is the course per standard magnetic compass to a position one mile due south of Falkner Island Light?
N a. 065°psc N b. 081°psc Y c. 093°psc N d. 097°psc 10704: At 2038 your position is LAT 41°09.2'N, LONG 71°40.6'W. You are on course 301° per standard magnetic compass at 7.2 knots. At 2152 your position is LAT 41°11.3'N, LONG 71°48.6'W. What were the set and drift?
N a. 080°T at 1.0 knot Y b. 096°T at 2.0 knots N c. 261°T at 1.2 knots N d. 277°T at 0.9 knot 11106: What is the height of the tide at Great Salt Pond, on Block Island, at the morning high water (daylight savings time) on 1 July 1983?
N a. 1.3 feet Y b. 2.3 feet N c. 3.2 feet N d. There is no morning high water 11908: 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 330° at 1.2 knots, and a southerly wind causes 3° of leeway?
Y a. 117°T N b. 112°T N c. 104°T N d. 102°T 12205: Your vessel is steady on a heading of 160° per standard magnetic compass when you sight Southwest Ledge Light and New Haven Outer Channel Range Rear Light in line dead astern. What is the deviation of the compass based on this observation?
Y a. 2°E N b. 2°W N c. 5°E N d. 5°W 12905: At 0919 you are in Chesapeake Channel between Trestle B and Trestle C of the Chesapeake Bay Bridge and Tunnel. What is your ETA to a point between York Spit Channel Buoys "35" and "36" if you are making 11.3 knots and follow the buoyed channel?
N a. 1025 N b. 1028 N c. 1033 Y d. 1037 13100: Your position is LAT 41°15.2'N, LONG 71°50.1'W at 1347. You are turning for 6.9 knots. What is your ETA at Shagwong Reef Buoy "7SR"?
Y a. 1506 N b. 1515 N c. 1521 N d. 1527 13508: The bottom approximately three miles to the ESE of Block Island Southeast Point has __________.
Y a. gravel N b. shale N c. stones N d. grit 13509: Sounding contours in unshaded water areas are at what interval?
N a. 10 foot up to 100 ft depths then at 30 foot intervals Y b. 30 foot intervals N c. 10 fathom intervals N d. The interval will vary to ensure any major underwater hazard is highlighted. 15007: What course should you steer using the standard magnetic compass (psc) to make good the course of 192°pgc?
N a. 188°psc N b. 195°psc Y c. 203°psc N d. 205°psc 15267: From your 1210 position, you are making good a course of 083°
T. Your engines are turning RPMs for 10 knots. The set and drift of the current are 310° at 1.7 knots. At what time should you expect to enter the red sector of New London Harbor Light?
Y a. 1243 N b. 1249 N c. 1253 N d. 1301 15339: If there is no set or drift, at what time would you be abeam of Bartlett Reef Light?
N a. 1719 Y b. 1724 N c. 1729 N d. 1734 15461: At 0908, you change course to 010°T. What course should you steer per standard magnetic compass?
N a. 003° N b. 017° Y c. 021° N d. 359° 15619: At 2123, your position is LAT 37°20.0'N, LONG 76°03.0'W. What is your distance offshore of Savage Neck?
N a. 4.3 miles N b. 3.4 miles N c. 2.6 miles Y d. 1.7 miles 15660: At 0728, Race Rock Light is bearing 282°T at 3.8 miles,
and the closest point on Fishers Island has a radar range of 2.1 miles. What speed have you been making since you changed course at 0705?
N a. 11.2 knots N b. 10.8 knots Y c. 9.6 knots N d. 9.1 knots 15665: Which action should you take to compensate for the above current?
N a. Continue on the same course and speed. Y b. Alter your course to the left. N c. Slow to 8.5 knots. N d. Alter your course to the right. 15865: From your 0200 position, you change course to 272°pgc. How far north of Stratford Shoal Middle Ground Light does this track pass?
Y a. 2.1 miles N b. 1.6 miles N c. 1.3 miles N d. 1.0 miles 15866: What is your ETA at a point where Stratford Shoal Middle Ground Light bears 180°T if you make good 9.0 knots?
N a. 0409 Y b. 0416 N c. 0425 N d. 0433 15868: Stratford Shoal Middle Ground Light is __________.
N a. 13 foot high N b. a fixed white light N c. shown from a white tower Y d. equipped with a HORN 15913: At 0830, you wish to get the latest weather forecasts for the Falkner Island area. On what frequency would you set your FM radio for this information?
N a. 2181 kHz N b. 156.65 Mhz N c. 156.80 Mhz Y d. 162.40 Mhz 16440: What course per gyrocompass would you need to steer from the anchorage to York Spit Channel buoy "29"?
Y a. 172° pgc N b. 175° pgc N c. 178° pgc N d. 181° pgc 16515: What action should you take to compensate for the above current?
N a. Continue on the same course and speed. Y b. Alter your course to the left. N c. Slow to 8.5 knots. N d. Alter your course to the right. 16717: At 0705, you take the following bearings:
Watch Hill Light 030.5°pgc
Latimer Reef Light 329.0°pgc
Race Rock Light 262.0°pgc
What was the true course made good between 0645 and 0705?
N a. 252°T Y b. 256°T N c. 263°T N d. 266°T