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.
149: Your engines are turning for 8.2 mph. You estimate the current at 1.5 mph. What is your speed over the ground?
Y a. 9.7 mph N b. 8.8 mph N c. 8.2 mph N d. 6.7 mph 158: Which daymark should you see as you approach French Point Light (mile 915.4 AHP)?
Y a. Red triangle N b. Green square N c. Red diamond N d. Green diamond 310: A vessel at LAT 28°20'N, LONG 16°00'W is to proceed to LAT 21°00'N, LONG 18°00'W. What is the course and distance by mid-latitude sailing?
Y a. 194.0°T, 453.0 miles N b. 195.2°T, 451.0 miles N c. 196.8°T, 450.0 miles N d. 197.3°T, 448.0 miles 358: From your 0410 fix, what is the course per standard magnetic compass to the entrance to York Spit Channel between buoys "37" and "38"?
N a. 152° N b. 156° Y c. 176° N d. 178° 425: At 0730, your position is LAT 41°10.5'N, LONG 72°32.2'W. From this position you steer course 286°psc with an engine speed of 9.0 knots. What is the approximate depth of water under your keel?
N a. 67 feet (20.3 meters) N b. 62 feet (18.8 meters) N c. 57 feet (17.3 meters) Y d. 52 feet (15.8 meters) 532: You depart LAT 26°03'S, LONG 10°28'E, for LAT 26°03'S, LONG 01°16'W. What are the course and distance by parallel sailing?
N a. 090°T, 547.2 miles N b. 090°T, 632.5 miles N c. 270°T, 547.2 miles Y d. 270°T, 632.5 miles 576: What is indicated by the dashed magenta line crossing York Spit Channel between buoys "20" and "22"?
N a. You are crossing the demarcation line between the COLREGS and the Inland Rules. N b. The line indicates a submarine cable, and you should not anchor in the area. Y c. The line marks the limits of a regulated area. N d. It marks the range between Ft. Wool Light and Cape Charles Harbor Range, Rear Light. 625: You are on a voyage from Boston, MA, to the South Pass, LA. The distance is 1870 miles, and the speed of advance is 13.6 knots. You estimate 16.5 hours for bunkering enroute at Port Everglades, FL. If you sailed at 0836 hours (ZD +5), 26 February , what was your ETA (ZD +6) at the South Pass?
N a. 2336, 3 March N b. 1136, 4 March N c. 1236, 4 March Y d. 1736, 4 March 820: On 15 March , in DR position LAT 21°42.0'N, LONG 55°26.0'W, you take an ex-meridian observation of the Sun's lower limb. The chronometer time of the sight is 04h 02m 40s, and the chronometer error is 02m 24s fast. The sextant altitude (hs) is 66°15.6'. The index error is 2.8' on the arc, and your height of eye is 56 feet. What is the latitude at meridian transit?
N a. 21°12.0'N N b. 21°18.0'N N c. 21°24.4'N Y d. 21°32.0'N 821: On 30 August , in DR position LAT 26°34.0'N, LONG 141°36.0'W, you take an ex-meridian observation of the Sun's lower limb. The chronometer time of the sight is 09h 15m 26s, and the chronometer error is 00m 00s. The sextant altitude (hs) is 71°41.7'. The index error is 3.2' off the arc, and your height of eye is 49.6 feet. What is the latitude at meridian transit?
Y a. LAT 26°41.9'N N b. LAT 26°44.6'N N c. LAT 26°48.2'N N d. LAT 26°52.3'N 844: On 12 September , your 0600 zone time (ZT) fix gives you a position of LAT 22°51.9'N, LONG 133°40.1'W. Your vessel is on course 062°T, and your speed is 12.3 knots. Local apparent noon (LAN) occurs at 1142 ZT, at which time a meridian altitude of the Sun's upper limb is observed. The observed altitude (Ho) for this sight is 70°33.2'. What is the calculated latitude at LAN?
N a. 23°23.0'N Y b. 23°24.8'N N c. 23°26.5'N N d. 23°27.9'N 1175: On 12 February , your 0900 zone time DR position is LAT 16°43.0'N, LONG 51°42.0'W. Your vessel is on course 093°T at a speed of 18.5 knots. What is the zone time of local apparent noon (LAN)?
Y a. 1237 N b. 1233 N c. 1230 N d. 1226 1305: 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 1406: Which of the following describes the river at Cypress Bend, mile 569.0 AHP?
N a. There are revetments on both banks. Y b. The river is three tenths of a mile wide. N c. There is dredge spoil on both banks. N d. There is a turning basin located on the LDB. 1406: Which of the following describes the river at Cypress Bend, mile 569.0 AHP?
N a. There are revetments on both banks. Y b. The river is three tenths of a mile wide. N c. There is dredge spoil on both banks. N d. There is a turning basin located on the LDB. 1472: On 9 February , your 0739 zone time DR position is LAT 23°31.0'N, LONG 143°41.0'E. At that time, you observe the Sun bearing 104.5°psc. The chronometer reads 09h 37m 12s, and the chronometer error is 01m 52s slow. The variation is 3.5°W. What is the deviation of the standard magnetic compass?
N a. 1.6°E N b. 2.3°W N c. 5.1°W Y d. 8.6°E 1545: You are downbound, passing by Warfield Point Lt. (mile 537 AHP), when you observe on your Mississippi River map several black lines extending into the river from the bank. These indicate __________.
N a. revetments N b. weirs N c. fleeting areas Y d. dikes 1905: On 22 March , your 0519 DR position is LAT 27°20.6'N, LONG 69°25.6'W. You observe an unidentified star bearing 200°T at an observed altitude (Ho) of 33°05.5'. The chronometer reads 10h 16m 47s, and is 02m 15s slow. What star did you observe?
N a. Acamar N b. Enif Y c. Antares N d. Rigel 1910: On 22 February , your 1857 DR position is LAT 23°46.0'S, LONG 93°16.5'E. You observe an unidentified star bearing 126°T at an observed altitude (Ho) of 40°21.5'. The chronometer reads 01h 00m 35s and is 03m 25s fast. What star did you observe?
N a. Adhara N b. Miaplacidus N c. Avior Y d. Suhail 1915: On 14 January , your 0550 DR position is LAT 25°26.0'N, LONG 38°16.0'W. You observe an unidentified star bearing 043°T at an observed altitude (Ho) of 37°12.1'. The chronometer reads 08h 48m 51s, and is 01m 22s slow. What star did you observe?
N a. Gienah N b. Kochab N c. Gacrux Y d. Eltanin 2102: 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 up to 180 feet N c. 10 fathom intervals N d. The interval will vary to ensure any major underwater hazard is highlighted. 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 2163: On 1 April , at 0515 zone time, morning stars were observed, and the vessel's position was determined to be LAT 27°05.0'N, LONG 16°30.0'W. Your vessel is steaming at 19.0 knots on a course of 022°T. A sextant observation of the Sun's lower limb is made at 0930 zone time. The chronometer reads 10h 28m 25s, and the sextant altitude is 46°20.3'. The index error is 4.5' off the arc, and the chronometer error is 02m 15s slow. Your height of eye on the bridge is 57.0 feet. What is the azimuth (Zn) of this sight using the assumed position?
N a. 121.6°T N b. 117.9°T Y c. 115.0°T N d. 112.2°T 2241: At 1318 ZT, on 10 September , in DR position LAT 24° 05.8' N, LONG 058° 08.3' E, you observe an amplitude of the Moon. The upper limb of the Moon is on the visible horizon and bears 254° psc. Variation is 2° W. What is the deviation?
N a. 8.0°W N b. 8.0°E Y c. 4.0°W N d. 4.0°E 2686: While on a course of 034°pgc, a light bears 8° on the port bow at a distance of 8.8 miles. What course should you steer to pass 2.5 miles abeam of the light leaving it to port?
N a. 035°pgc Y b. 043°pgc N c. 051°pgc N d. 059°pgc 3303: You have steamed 174 miles and consumed 18.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 416 miles?
N a. 34.9 tons N b. 38.4 tons Y c. 43.0 tons N d. 46.2 tons 6143: At 2027 you obtain a radar range to Shagwong Point of 3.4 miles and a tangent bearing to the east end of Long Island of 172°T. Which statement is TRUE?
Y a. You are to the left of your DR track. N b. You are inside a precautionary area. N c. Your speed made good from 1949 to 2027 is 14.0 knots. N d. Your course made good from 1949 to 2027 is 111°T. 10208: Your GPS position is LAT 41°08.5'N, LONG 72°28.8'W. What course must you steer per standard magnetic compass (psc) to leave Cornfield Lighted Whistle Buoy "CF" 0.5 mile abeam to starboard?
N a. 032°psc N b. 048°psc N c. 055°psc Y d. 067°psc 11308: At 1919 your position is LAT 37°00.0'N, LONG 75°30.0'W. At 2011 your position is LAT 36°59.5'N, LONG 75°44.9'W. What was the speed made good?
Y a. 13.7 knots N b. 12.0 knots N c. 11.6 knots N d. 10.9 knots 11802: What course should you steer by your standard magnetic compass (psc), between New Haven Light and Stratford Pt. Light, if the set and drift of the current are 345°T at 3.0 knots, and a northerly wind will cause 1° of leeway? Your engines are making turns for 18.0 knots.
N a. 245.0°psc Y b. 247.0°psc N c. 264.0°psc N d. 266.5°psc 12208: You sight Stratford Pt. Light in line with the Igor I. Sikorsky Airport Aero Beacon bearing 319° per standard magnetic compass. What is the compass error?
N a. 4°E N b. 10°W N c. 14°E Y d. 18°W 12310: You sight North Dumpling Island Light in line with Latimer Reef Light (LAT 41°18.2'N, LONG 71°56.0'W) bearing 091° per standard magnetic compass. If your vessel was heading 246° per standard magnetic compass at the time, which of the following is TRUE?
N a. The deviation table is correct. Y b. The compass error is 18°W for that heading. N c. The deviation is equal to the variation. N d. The deviation is equal to but of opposite sign to the variation. 13008: Your 2215 position is LAT 41°05.4'N, LONG 72°59.4'W. You are making 15 knots. What is your ETA at Twenty-Eight Foot Shoal Lighted Buoy (LAT 41°09.3'N, LONG 72°30.5'W)?
N a. 2338 Y b. 2343 N c. 2349 N d. 2354 13301: The approach channel to the town of Cape Charles (LAT 37°16'N, LONG 76°01'W) has what controlling depth?
N a. 9 feet Y b. 17 feet N c. 20 feet N d. 40 feet 13900: The trapezoidal shaped areas enclosed by a thin broken magenta line and located along the south coast of Long Island are __________.
N a. designated training areas for Navy amphibious craft N b. disposal areas for unexploded munitions Y c. fish trap areas N d. anchorage areas for small craft 15064: At 0844, the range to the north end of Falkner Island is 2.0 miles and the left tangent bearing is 102°T. If the height of the tide is +1.0 foot, what is the approximate depth of the water under the keel?
N a. 14 ft (4.2 meters) Y b. 19 ft (5.8 meters) N c. 22 ft (6.7 meters) N d. 29 ft (8.8 meters) 15106: The National Weather Service provides 24 hour weather broadcasts to vessels transiting the Chesapeake Bay Bridge Tunnel area on which frequency?
N a. 147.45 MHz Y b. 162.55 MHz N c. 181.15 MHz N d. 202.35 MHz 15358: At 0507, Stratford Shoal Middle Ground Light bears 208°pgc. What is the position of your 0507 running fix?
N a. LAT 41°04.8'N, LONG 73°05.0'W N b. LAT 41°04.9'N, LONG 73°04.8'W Y c. LAT 41°05.1'N, LONG 73°05.1'W N d. LAT 41°05.3'N, LONG 73°04.8'W 15442: At 2216 CBJ Buoy is close abeam to port. Your lookout reports several sound signals with their relative bearings.
Which would you judge to be coming from a vessel?
N a. A bell, broad on the port bow Y b. A whistle, broad on the starboard beam N c. A bell, dead ahead N d. A gong, two points on the starboard quarter 15519: As an option to heading into Long Island Sound, you consider anchoring in the vicinity of the Gardiners Point Ruins approximately one mile off the north end of Gardiners Island. What is the minimum recommended distance from the ruins for fishing,
trawling, or anchoring?
Y a. 300 yards (91 meters) N b. 1.0 mile N c. 0.5 mile N d. No distance is prescribed since any such activities in the area are prohibited. 15618: If you want a more detailed chart of the area at your 2115 DR position, which chart should you use?
N a. 12222 Y b. 12224 N c. 12225 N d. 12238 15766: From your 0745 fix, you change course to pass 1.0 mile south of buoy "WH" and estimate your speed at 7 knots. If the visibility clears, what is the earliest time you can expect to see Block Island North Light tower?
N a. The tower is in sight at 0745. N b. 0750 Y c. 0806 N d. 0838 15962: Based on dead reckoning, at approximately 1817 you would expect to __________.
N a. enter a traffic separation zone N b. depart a restricted area N c. cross a submerged pipeline Y d. depart a regulated area 16111: Which publication contains the specific information about navigating in York Spit Channel?
N a. Light List Y b. Coast Pilot N c. Chesapeake Bay Harbor- master's Regulations Manual N d. Navigator's Manual - Chesapeake Bay 16245: At 2259 Cape Henry Light bears 250°T, Chesapeake Light bears 122°T, and North Chesapeake Entrance Lighted Whistle Buoy "NCA" has a radar range of 1.8 miles. Which statement is TRUE?
N a. The course made good is 226°T. N b. You are in the red sector of Cape Henry Light. N c. You are in a submerged submarine transit lane. Y d. Chesapeake Light is 7.6 miles off. 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. 16266: The abandoned lighthouse at Cape Henry is a(n) __________.
N a. octagonal, black and white tower N b. radio beacon station N c. emergency back up to Cape Henry Light Y d. gray, pyramidal tower 16346: After passing through the Race, enroute to Bridgeport, CN,
and Race Rock Light is 2 miles astern you notice an equal interval flashing red light on the starboard side. This light is __________.
N a. New London Airport Aerobeacon Y b. New London Harbor Light N c. New London Ledge Light N d. Bartlett Reef Light 16364: If you proceed from your 0500 position to Chesapeake Bay via the inbound traffic lane. What is the distance to Yorktown, VA?
N a. 34.0 miles N b. 42.6 miles Y c. 51.7 miles N d. 62.1 miles 16420: If you want to put into Point Judith Harbor of Refuge, what chart should you use?
N a. 13205 N b. 13209 N c. 13217 Y d. 13219 16514: At 0815, Montauk Pt. Light House is bearing 167°T,
Shagwong Pt. has a radar range of 4.5 miles, and Cerberus Shoal "9" Buoy is bearing 284°T. If the engine is making turns for 10 knots, what was the set and drift of the current since 0748?
N a. Set 065°T, drift 1.1 knots N b. Set 065°T, drift 2.4 knots N c. Set 245°T, drift 1.1 knots Y d. Set 245°T, drift 2.4 knots 16742: At 2352 you hear a MAYDAY call from a vessel reporting her position as 1.5 miles due east of Block Island Southeast Point Light. What is the course to steer, per gyrocompass to the distress site, if you change course at midnight and allow 1° leeway for easterly winds?
N a. 049.5°pgc N b. 052.5°pgc N c. 055.5°pgc Y d. 059.0°pgc