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88: What is the vertical clearance between the highest point of your towboat, if it is 58 feet above the water, and if the Natchez Gage reads 28.13 feet when passing under the Natchez Upper Highway Bridge?
N a. 45.4 feet Y b. 39.3 feet N c. 33.2 feet N d. 15.9 feet 231: From your 2123 position, you are approximately 42 miles from Crisfield, MD. If you are making good a speed of 13 knots, at what time should you arrive at Crisfield, MD?
N a. 0148 N b. 0112 Y c. 0037 N d. 2359 232: At 0700, Stratford Shoal Middle Ground Light bears 137°pgc. From your radar, you get a bearing of 007°pgc to the south tip of Stratford Point with a range of 4.5 miles. What is your 0700 position?
N a. LAT 41°04.6'N, LONG 73°07.0'W N b. LAT 41°04.6'N, LONG 73°06.6'W N c. LAT 41°04.6'N, LONG 73°07.4'W Y d. LAT 41°04.6'N, LONG 73°07.2'W 277: What chart should you use after you enter New London Harbor?
N a. 13211 N b. 13214 Y c. 13213 N d. 13272 497: At 0845, Montauk Pt. Light is bearing 205°T at a radar distance of 6.6 miles. What is your speed made good from your 0815 position?
N a. 10.5 knots N b. 10.0 knots N c. 9.2 knots Y d. 8.4 knots 681: At 0119, on 10 September, you pass Springfield Bend Lt. (mile 244.8 AHP) and estimate the current will average 2.5 mph for the remainder of your trip. What is your ETA at the mouth of the Ohio River if you are making turns for 8.5 mph?
N a. 1746, 12 September N b. 1244, 13 September N c. 1244, 14 September Y d. 2329, 14 September 682: As you pass under the Natchez-Vidalia Dual Bridge, the gage on the bridge reads 8.9 ft. If the highest point on your vessel is 54 ft. above the water, what is your vertical clearance?
N a. 60.0 feet Y b. 63.1 feet N c. 67.2 feet N d. 122.0 feet 683: Which type of daymark would you see on the Belle Island Corner Lt. at mile 458.6 AHP?
N a. Green - Diamond N b. Green - Square N c. Red - Triangle Y d. Red - Diamond 684: At 1814, on 11 September, you pass under the Greenville Highway Bridge (mile 531.3 AHP). What speed must you average to arrive at Jimmy Hawken Light (mile 663.5 AHP) at 0930 the following day?
N a. 9.7 mph Y b. 8.7 mph N c. 6.3 mph N d. 5.6 mph 739: On 29 April , your 1913 zone time DR position is LAT 22°09.0'N, LONG 56°16.0'W. At that time you observe Polaris with a sextant altitude (hs) of 22°25.8'. The chronometer time of the sight is 11h 11m 14s, and the chronometer error is 02m 18s slow. The index error is 1.5' off the arc, and the height of eye is 61.5 feet. What is your latitude by Polaris?
N a. 21°39.9'N N b. 21°55.7'N Y c. 22°39.9'N N d. 22°48.8'N 810: On 13 October , your 0515 zone time (ZT) fix gives you a position of LAT 26°53.0'N, LONG 90°05.0'W. Your vessel is on course 068°T, and your speed is 7.8 knots. Local apparent noon (LAN) occurs at 1145 zone time, at which time a meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 54°51.5'. What is the calculated latitude at LAN?
Y a. 27°12.6'N N b. 27°14.1'N N c. 27°15.7'N N d. 27°16.2'N 816: On 15 November , your 0813 zone time (ZT) fix gives you a position of LAT 22°30.0'N, LONG 67°28.0'W. Your vessel is on course 164°T, and your speed is 13.5 knots. Local apparent noon (LAN) occurs at 1215 ZT, at which time a meridian altitude of the Sun's lower limb is observed. The observed altitude (Ho) for this sight is 49°46.0'. What is the latitude at 1200 ZT?
Y a. 21°42.5'N N b. 21°39.3'N N c. 21°36.0'N N d. 21°32.8'N 997: On 20 November , your 0612 zone time (ZT) position was LAT 25°38.0'N, LONG 166°54.0'W. Your vessel was steaming on course 126°T at a speed of 20.0 knots. An observation of the Sun's lower limb was made at 0854 ZT. The chronometer read 07h 51m 14s and was slow 02m 52s. The observed altitude (Ho) was 27°58.3'. LAN occurred at 1147 ZT. The observed altitude (Ho) was 45°35.0'. What was the longitude of your 1147 ZT running fix?
N a. 165°20.2'W N b. 165°18.4'W N c. 165°15.8'W Y d. 165°12.5'W 1137: What is the length of the trip?
N a. 1195.4 miles N b. 1223.1 miles N c. 1464.8 miles Y d. 1520.1 miles 1196: On 14 October your 0800 zone time (ZT) dead reckoning position is LAT 28°22.0'N, LONG 161°17.0'E. Your vessel is on course 116°T at a speed of 17.5 knots. What is the ZT of local apparent noon (LAN)?
N a. 1148 N b. 1151 Y c. 1156 N d. 1202 1224: What is the total length of the trip?
N a. 906.3 miles Y b. 922.3 miles N c. 1155.8 miles N d. 1187.3 miles 1308: At Filter Point Light (mile 475 AHP) there are 2 close straight dashed lines on the map passing through the black dots. What do these lines represent?
N a. Submerged oil pipelines N b. Submerged gas pipelines N c. Submerged telephone cables Y d. Aerial power cables 1393: It is 15 July and you are keeping +7 zone time. You are on course 095°, speed 16 knots. Your 0800 DR position is LAT 25°39.4'N, LONG 129°46.2'W. What is the time of the second estimate of LAN by ship's clocks?
N a. 13h 40m 17s Y b. 13h 38m 19s N c. 12h 42m 20s N d. 12h 38m 20s 1452: On 6 November , your 0752 zone time DR position is LAT 25°11.0'N, LONG 76°07.0'W. At that time, you observe the Sun bearing 119°psc. The chronometer reads 12h 53m 07s, and the chronometer error is 01m 19s fast. The variation is 3°W. What is the deviation of the standard magnetic compass?
N a. 2.2°W N b. 3.8°W N c. 2.8°E Y d. 3.2°E 1498: On 7 December , your 0350 ZT position is LAT 35°42'N, LONG 17°38'E. You observe Polaris bearing 359.7°pgc. At the time of the observation the helmsman noted that he was heading 016°pgc and 014°psc. The variation is 1°E. What is the deviation for that heading?
Y a. 0.3°E N b. 1.5°E N c. 0.3°W N d. 1.5°W 1538: At 1032 on 24 June, you pass Carolina Landing Light(508.8 AHP). What has been the average current since 2350, 23 June, if you have been making turns for 9.0 mph?
N a. 8.5 mph N b. 5.7 mph N c. 1.5 mph Y d. 0.5 mph 1683: You are taking a time tick using the 1930 signal from Rio de Janeiro, Brazil. You hear the preparatory signal "CQ DE PPE" repeated several times followed by a short dash (0.4 sec), 60 dots (0.1 sec each) and another short dash. At the beginning of the last dash, the comparing watch reads 07h 30m 08s. When compared to the chronometer, the comparing watch reads 07h 31m 48s, and the chronometer reads 07h 32m 16s. What is the chronometer error?
N a. 0m 28s slow N b. 1m 40s slow N c. 0m 08s fast Y d. 0m 36s fast 1777: At 2232 ZT, on 14 July , in DR position LAT 33°52'S, LONG 150°03'W you observe an amplitude of Jupiter. The planet is about one Sun's diameter above the visible horizon and bears 268.5°pgc. The variation is 15°E. What is the gyro error?
Y a. 1.0°E N b. 0.5°E N c. 0.0° N d. 0.5°W 1883: On 13 June , your 0445 DR position is LAT 20°12.0'N, LONG 44°45.0'W. You observe an unidentified star bearing 168°T at an observed altitude (Ho) of 38°56.0'. The chronometer reads 07h 43m 20s, and is 01m 39s slow. Which star did you observe?
N a. Peacock N b. Ankaa N c. Al Na'ir Y d. Fomalhaut 2007: On 4 September , your 1813 zone time DR position is LAT 24°18.0'S, LONG 95°16.0'E. Considering their magnitude, azimuth, and altitude, which group includes the three stars best suited for a fix at star time?
N a. Enif, Miaplacidus, Alkaid N b. Betelgeuse, Acrux, Hamal Y c. Rasalhague, Fomalhaut, Spica N d. Deneb, Altair, Vega 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 2120: At 1502 ZT, on 4 August , in DR position LAT 11° 21.6' S, LONG 088° 14.3' E, you observe an amplitude of the Moon. The upper limb of the Moon is on the visible horizon and bears 289° psc. The variation is 15° W. What is the deviation?
N a. 1.1°E Y b. 1.1°W N c. 1.9°E N d. 1.9°W 2164: On 6 March , at 0550 zone time, morning stars were observed, and the vessel's position was determined to be LAT 23°56.0'N, LONG 27°19.0'W. Your vessel is steaming at 25.0 knots on a course of 149.0°T. A sextant observation of the Sun's lower limb is made at 0830 zone time. The chronometer reads 10h 32m 05s, and the sextant altitude is 31°31.5'. The index error is 2.5' on the arc, and the chronometer error is 01m 45s fast. Your height of eye on the bridge is 76.0 feet. What is the azimuth (Zn) of this sight using the assumed position?
N a. 109.8°T N b. 111.2°T Y c. 112.8°T N d. 114.3°T 2289: You observe the lower limb of the Sun at a sextant altitude (hs) of 38°07.5' on 8 August . The index error is 5.2' off the arc. The height of eye is 72 feet (22 meters). What is the observed altitude (Ho)?
N a. 38°08.4' N b. 38°13.3' Y c. 38°19.2' N d. 38°23.4' 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 2324: At 1547 ZT, on 22 May , in DR position LAT 45° 12.8' N, LONG 028° 15.4' W, the Moon’s upper limb is observed on the visible horizon, bearing 120.0° psc. Variation is 2° W. What is the deviation?
N a. 1.4°W Y b. 2.6°E N c. 1.4°E N d. 2.6°W 2685: You are steering 031°T, and a light is picked up dead ahead at a distance of 12.7 miles at 0017. You change course to pass the light 3.5 miles off abeam to starboard. If you are making 11 knots, what is your ETA at the position 3.5 miles off the light?
N a. 0118 N b. 0121 Y c. 0124 N d. 0127 2778: What company does NOT have a marine facility along the river bank in Helena (mile 658 to 665 AHP)?
N a. Texas Eastern Pipeline Co. N b. Helena Port Terminal, Inc. N c. Arkansas Power & Light Co. Y d. Helena Grain Co. 2788: The solid lines extending into the channel at mile 948 AHP are __________.
Y a. dikes N b. revetments N c. spoil areas N d. Meadwestvaco pipeline 3773: Which numbered box indicates the ExxonMobil Refining & Supply Co. in Baton Rouge?
Y a. 1 N b. 2 N c. 3 N d. 4 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. 10606: At 0915 your GPS position is LAT 41°04.9'N, LONG 72°42.1'W. You are on course 085° per standard magnetic compass at a speed of 6 knots. At 1030 your GPS position is 0.5 mile due south of Twenty-Eight Foot Shoal Lighted Buoy "TE". What were your set and drift?
N a. 042°T at 2.4 knots Y b. 045°T at 1.9 knots N c. 221°T at 2.0 knots N d. 225°T at 2.3 knots 11702: You are eastbound in the Thimble Shoal Channel. What is the true heading to steer if the engines are turning for 9.5 knots, the current is 110°T at 1.2 knots, and a southerly wind causes 3° of leeway?
Y a. 111° N b. 108° N c. 105° N d. 100° 15060: At 0802, the radar range and bearing to Branford Reef Light are 350°pgc at 0.8 mile, and the north point of Falkner Island are 090°pgc at 6.7 miles. What were the set and drift that you encountered since 0740?
N a. Set 085°T, drift .2 knot Y b. Set 085°T, drift .6 knot N c. Set 265°T, drift .2 knot N d. Set 265°T, drift .6 knot 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 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 15346: At 1942 Point Judith bears 030°T and has a range of 3.6 miles and Sandy Point has a range of 5.3 miles. What was your speed made good from your 1850 position?
N a. 12.5 knots Y b. 13.0 knots N c. 13.5 knots N d. 14.0 knots 15439: What is your ETA off Chesapeake Bay Entrance Buoy "CB" at the entrance to the inbound lane of the traffic separation scheme?
Y a. 2058 N b. 2104 N c. 2109 N d. 2115 15459: At 0823, Old Point Comfort Light bears 000°T at 0.6 mile. What is your 0823 position?
Y a. LAT 36°59.5'N, LONG 76°18.4'W N b. LAT 36°59.0'N, LONG 76°21.6'W N c. LAT 36°59.0'N, LONG 76°19.6'W N d. LAT 36°55.5'N, LONG 76°18.6'W 15469: At 1037, you are on course 010°T at 10 knots, when you take the following bearings:
Old Plantation Flats Light bearing 125°pgc
Wolf Trap Light bearing 338°pgc
New Point Comfort Light bearing 286°pgc
What is your 1037 position?
N a. LAT 37°15.9'N, LONG 76°07.1'W Y b. LAT 37°16.1'N, LONG 76°07.4'W N c. LAT 37°16.2'N, LONG 76°07.8'W N d. LAT 37°16.3'N, LONG 76°07.2'W 15627: What is the vertical clearance of the Natchez Highway Bridge (westbound) when the river level is the same as the Low Water Reference Plane (6.1 ft)?
N a. 102.2 ft N b. 108.3 ft Y c. 119.4 ft N d. 125.6 ft 15809: At 0045, you obtain the following bearings:
Rocky Point lookout tower 072°T
Horton Point lighthouse 213°T
What were the set and drift between 0005 and 0045?
N a. 272°true, 0.9 knot N b. 272°true, 1.4 knots N c. 092°true, 0.9 knot Y d. 092°True, 1.4 knots 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 16139: From your 1930 position, you set a course of 150°T. Your engine speed is 13 knots. What will be your distance off Valiant Rock Bell Buoy "1A" when abeam, if you make good your true course of 150°?
N a. 0.8 mile Y b. 1.0 miles N c. 1.2 miles N d. 1.4 miles 16239: From your 2045 position, you set a course to pass 1.5 miles due east of the charted position of Hog Island Lighted Bell Buoy "12". The known set and drift in the area are 068°T at 3 knots. What is the course to steer, with no change in engine speed, to make good your desired course?
Y a. 200°T N b. 203°T N c. 206°T N d. 209°T 16358: What is the distance from the anchorage to point "A"?
N a. 13.9 miles Y b. 15.1 miles N c. 15.9 miles N d. 17.0 miles 16461: At 0400, you obtain the following information:
Sand Shoal Inlet South Light bearing 303° true @ 7.1nm
What is your 0400 position?
N a. LAT 37°14.2'N, LONG 75°40.7'W N b. LAT 37°14.1'N, LONG 75°41.3'W N c. LAT 37°14.1'N, LONG 75°40.5'W Y d. LAT 37°14.0'N, LONG 75°40.7'W