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.
39: At 1227, on 19 October, 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?
Y a. 6.3 mph N b. 5.9 mph N c. 5.6 mph N d. 5.2 mph 51: As you approach Anconia Pt. Light (mile 528.6 AHP), which type of dayboard would you see on the light structure?
N a. Green diamond Y b. Green square N c. Red square N d. Red diamond 80: The Helena Gage reads 9.4 feet. The high point on your towboat is 46 feet above water. What is the vertical clearance when you pass under the Helena Highway Bridge?
N a. 106.1 feet N b. 79.5 feet Y c. 64.2 feet N d. 56.0 feet 86: As you approach Shreves cut-off you see Red River Landing Gage (mile 302.4 AHP) which reads 6.2 feet. Which of the following statements is TRUE?
N a. This reading is 6.2 feet above the Low Water Reference Plane. Y b. This reading is at the same elevation as the 6.2 ft. mark on the Gage at Head of Passes. N c. The depth of water at Red River Landing is 6.2 ft. N d. A vessel drawing 7 ft. would be able to pass through the locks at Lower Old River. 110: As you pass under the Baton Rouge RR and Highway 190 bridge you receive a call from another tow upriver. What channel on the VHF should you be monitoring?
N a. 1 Y b. 13 N c. 16 N d. 67 285: At 1845, you plot the following bearing lines:
Old Plantation Flats Light bearing 251°true
New Point Comfort Light bearing 335°true
Your latitude is __________.
N a. 37°10.7'N N b. 37°10.9'N Y c. 37°11.2'N N d. 37°11.6'N 333: From your noon position, if there is no set and drift, what is your course per standard magnetic compass to the "NCA" (LL #375) buoy?
N a. 221°psc N b. 219°psc Y c. 217°psc N d. 215°psc 360: If you are making 8.3 knots over the ground, what is your ETA at the first turning point in York Spit Channel between buoys "29" and "30"?
Y a. 0522 N b. 0508 N c. 0456 N d. 0448 447: You are encountering heavy weather. What action should you take based on your 1430 fix?
N a. Continue on the same course but increase speed. N b. Continue on the same course at the same speed. N c. Slow to 8.3 knots to compensate for the current. Y d. Alter course to the right, to pass well clear of Southwest Ledge 489: At 0728, Race Rock Light is bearing 282°T at 3.8 miles, and the closest point on Fishers Island is at a radar range of 2.1 miles. What speed have you been making since you changed course at 0705?
N a. 11.4 knots N b. 10.6 knots Y c. 9.9 knots N d. 9.2 knots 504: At 2142, you change course to make good 030°T and increase speed to 14 knots. You rendezvous with another vessel and receive fresh supplies while off New Haven Harbor lighted whistle buoy "NH". What is the light characteristic of this buoy?
N a. _ . N b. _ _ N c. . . Y d. . _ 544: From your 0600 position, what is the course per gyrocompass to leave Watch Hill Light abeam to starboard at 2.0 miles if a southerly wind is producing 3° of leeway?
N a. 262°pgc N b. 258°pgc N c. 256°pgc Y d. 252°pgc 632: The Memphis Gage reads 18.4 feet. The high point of your towboat is 48 feet above water. What is the vertical clearance as you pass under the Memphis Highway Bridge?
Y a. 46.4 feet N b. 53.8 feet N c. 66.4 feet N d. 75.4 feet 657: You are planning a voyage by great circle from the mouth of the Delaware River (LAT 38°40'N, LONG 75°00'W) to Lisbon, Portugal. Which statement is TRUE? (Use gnomonic tracking chart WOXZC 5274.)
Y a. You will reach the northernmost latitude of the voyage in the vicinity of LONG 42°30'W. N b. The Northern Hemisphere vertex lies to the east of Lisbon. N c. You must plot a composite sailing to remain south of icebergs reported north of 44°N. N d. The distance is measured in 60-mile segments using the length of the degree of latitude crossed by the track line. 674: What are the dimensions of the Port Allen Lock at Baton Rouge, LA?
N a. 75 feet x 1188 feet Y b. 84 feet x 1188 feet N c. 84 feet x 1180 feet N d. 75 feet x 1180 feet 705: At 1554, on 25 May, you pass Huntington Point Light (mile 555.2 AHP). What was your average speed since departing Amoco Pipeline Co. DockS (mile 253.6 AHP)?
Y a. 6.2 mph N b. 5.2 mph N c. 4.8 mph N d. 4.3 mph 706: The solid lines extending into the channel at mile 948 AHP are __________.
N a. revetments Y b. dikes N c. spoil areas N d. Westvaco Service Facilities 815: On 13 October , your 0515 zone time 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 latitude at 1200 ZT?
Y a. 27°13.3'N N b. 27°14.6'N N c. 27°15.7'N N d. 27°16.8'N 1190: On 12 February , your 0930 zone time DR position is LAT 25°20.0'N, LONG 30°40.0'W. Your vessel is on course 135°
T at a speed of 11.2 knots. What is the zone time of local apparent noon (LAN)?
N a. 1210 Y b. 1215 N c. 1220 N d. 1224 1238: If the highest point of your towboat is 54 feet above the water and the Natchez Gage reads 24.8 feet, what will be your vertical clearance when passing under the Natchez-Vidalia westbound Highway Bridge?
N a. 35.9 feet Y b. 47.2 feet N c. 49.6 feet N d. 57.5 feet 1289: The horizontal clearance of the center span on the Baton Rouge RR and Highway 190 Bridge is __________.
N a. 443 N b. 500 N c. 575 Y d. 623 1457: On 25 August , your 1926 zone time DR position is LAT 24°17.0'S, LONG 05°47.0'W. At that time, you observe Fomalhaut bearing 117°psc. The chronometer reads 07h 26m 52s, and the chronometer error is 00m 15s fast. The variation is 1.5°E. What is the deviation of the standard magnetic compass?
N a. 0.2°W N b. 0.4°E N c. 1.3°W Y d. 2.8°W 1468: On 17 April , your 1516 zone time DR position is LAT 27°24.0'N, LONG 115°24.0'E. At that time, you observe the Sun bearing 247°psc. The chronometer reads 07h 16m 26s, and the chronometer error is 00m 32s slow. The variation is 4.5°E. What is the deviation of the standard compass?
N a. 4.5°W Y b. 5.4°E N c. 6.2°E N d. 6.2°W 1496: On 3 October , your 2122 ZT position is LAT 26°32'N, LONG 84°26'W. You observe Polaris bearing 359.8°pgc. At the time of the observation the helmsman noted that he was heading 106°pgc and 107°psc. The variation is 0°. What is the deviation for that heading?
N a. 1°E Y b. 0° N c. 1°W N d. 2°W 1804: You pass Red River Gage at 2015 on 16 April and estimate the current will average 3.0 mph for the remainder of the time on the Mississippi River. What is your ETA at the mouth of the Ohio River if you continue to turn for 10 mph?
Y a. 1718, 20 April N b. 1830, 20 April N c. 0028, 21 April N d. 0821, 21 April 1831: You pass Warnicott Bar Lt. at 1146, 24 May. What is your ETA off the Mhoon Landing Gage if you average 6.5 mph?
N a. 0152, 26 May N b. 0426, 26 May Y c. 1528, 26 May N d. 0909, 27 May 1950: The Greenville Gage reads 10.6 feet. The high point of your towboat is 54 feet above water. What is the vertical
clearance as you pass under the Greenville Highway Bridge?
N a. 44.4 feet N b. 54.2 feet Y c. 65.4 feet N d. 75.4 feet 1986: You are in charge of a vessel that damages an aid to navigation established and maintained by the United States. Which statement is TRUE?
N a. You must take the aid in tow and deliver it to the nearest Coast Guard, Marine Safety Office. N b. You must report the allision to the nearest Army Corps.. of
Engineers Office.N c. You may wait until you reach your destination before reporting the allision to the U.S. Coast Guard. Y d. You must report the accident to the nearest Officer in Charge, Marine Inspection. 2157: On 25 May , your vessel's 1917 zone time position is LAT 24°16.0'N, LONG 017°26.0'W. At that time a sextant observation of the planet Saturn was made. The sextant altitude is 63°05.1', and the chronometer reads 08h 18m 24s. The index error is 4.5' off the arc, and the chronometer error is 01m 05s fast. Your height of eye is determined to be 62.0 feet. What is the azimuth (Zn) of this sight using the assumed position?
N a. 143.8° Y b. 147.3° N c. 148.7° N d. 149.9° 2238: At 1430 ZT, on 16 April , in DR position LAT 34° 03.8' N, LONG 061° 02.5'W, you observe an amplitude of the Moon. The center of the Moon is on the visible horizon and bears 095.2°psc. The variation is 12°W. What is the deviation?
N a. 1.7°W N b. 1.7°E N c. 1.9°W Y d. 1.9°E 2297: The Platte River empties into which river?
N a. Mississippi N b. Ohio Y c. Missouri N d. Tennessee 2459: You have steamed 432 miles at 18 knots and burning 406 barrels of fuel per day. You must decrease your consumption to 221 barrels per day with 190 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?
N a. 10.6 N b. 12.8 Y c. 16.5 N d. 17.7 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 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 11706: Your position is LAT 37°00.0'N, LONG 75°30.0'W. What is the course to steer per standard magnetic compass to arrive at LAT 36°59.0'N, LONG 75°48.5'W, if you are turning for 8.7 knots, the current is 039°T at 1.3 knots, and a northwesterly wind is causing 3° of leeway?
N a. 264.0° N b. 267.5° N c. 270.0° Y d. 273.0° 12101: You sight Thimble Shoal Light in line with Old Point Comfort Light bearing 267° per standard magnetic compass. You are on course 182°psc. Based on this, you know __________.
Y a. the existing deviation is correct for that heading N b. you should adjust your compass N c. the compass error is 2°W N d. the variation is 11°W 13107: At 1103 your position is LAT 41°12.5 N, LONG 71°37.4 W. What is your ETA at the west gap of Point Judith Harbor of Refuge if you make good 11.3 knots?
N a. 1144 N b. 1154 Y c. 1159 N d. 1205 15061: Falkner Island Light is shown __________.
N a. 46 feet (13.9 meters) above sea level N b. only from 1 June to 10 October Y c. from a white octagonal tower N d. with a six-second period 15217: At 2118, you obtain the following bearings:
Cape Henry Light - 148°pgc
Cape Charles Light - 033°pgc
Thimble Shoal Light - 291°pgc
From this position, you proceed to Norfolk, VA, a distance of approximately 26.0 miles. To arrive at Norfolk at 0200 the next day, what is the speed to make good from your 2118 position to arrive at this time?
N a. 5.0 knots Y b. 5.5 knots N c. 6.0 knots N d. 6.5 knots 15242: From your 1155 position, you steer a course of 282°T at a speed of 9.5 knots. You obtain the following bearings:
1205: Falkner Island Light bears 318°T
1225: Falkner Island Light bears 355°T
Your 1225 running fix is __________.
N a. north of your intended track N b. 3.1 miles SSW of Falkner Island Light N c. ahead of the DR position Y d. south of your intended track 15340: At 1718, Bartlett Reef Light bears 050°T at a distance of 1.5 miles. From this position, you change course to 128°
T. At 1750 Race Rock Light bears 336°T, Little Gull Island Light bears 285°T, and Montauk Point Light bears 134°T. What were the set and drift of the current you encountered since 1718?
N a. 245°T at 0.9 knots N b. 245°T at 1.7 knots Y c. 065°T at 1.7 knots N d. 065°T at 0.9 knots 15341: If your fathometer is set on fathoms, what should your fathometer read at 1750?
Y a. 8.5 fathoms N b. 10.2 fathoms N c. 14.7 fathoms N d. 51.0 fathoms 15616: At 2037, you change course to make good a course of 016°T.
There is no current, but a westerly wind is causing 3°
leeway. What course per standard magnetic compass (psc)
should you steer to make good the course 016°T?
N a. 031°psc N b. 028°psc N c. 025°psc Y d. 022°psc 15840: You should expect to pass how far off buoy "12"?
Y a. 0.8 mile N b. 1.2 miles N c. 1.7 miles N d. 2.1 miles 15860: At 0100, your position is LAT 41°05.3 N, LONG 72°29.2 W. You head for the position one mile north of Mattituck Inlet Light and turn to make good 9.0 knots. If the visibility is about 2 miles, at what approximate time will you sight the light?
N a. The light is visible at 0100 N b. 0109 Y c. 0120 N d. 0128 16018: At 0550, engineering repairs are complete and speed is increased to 9.6 knots. At 0630, Falkner Island Light bears 023°pgc and Horton Point Light bears 097°pgc. From your 0630 fix you steer to make good a course of 086°T while turning for 9.6 knots. At 0700, Falkner Island Light bears 336.0°pgc and Horton Point Light bears 105.5°pgc. The radar range to the south tip of Falkner Island is 5.7 miles. Which statement is TRUE?
N a. Your course made good from 0630 to 0700 was 082°T. N b. The speed made good from 0630 to 0700 was 10.1 knots. N c. The current from 0630 to 0700 was 279°T at 0.6 knot. Y d. You are making good your intended speed. 16362: The visibility is about 5 miles. Which statement about Cape Charles Light is TRUE?
N a. The light has been visible from the time you departed the anchorage. Y b. You should see Cape Charles Light at about 0400. N c. The light will become visible when you enter the inbound leg of the traffic separation scheme. N d. The light will not be visible until you are within 5 miles of the light. 16718: At 0705, you change course to head for The Race. You wish to leave Race Rock Light bearing due north at 0.4 mile. If the current is 100°T, at 2.8 knots, and you are turning for 12.0 knots, what course (pgc) should you steer?
N a. 250°pgc N b. 255°pgc Y c. 263°pgc N d. 267°pgc