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.
41: The Delta-Friar Point revetment on the LMR extends from mile __________.
N a. 648.5 - 645.5 LDB N b. 652.8 - 649.6 RDB Y c. 657.3 - 652.2 LDB N d. 645.6 - 641.4 RDB 60: What town is located at mile 389.8 AHP?
N a. Whitehall N b. Belmont Y c. Rodney N d. St. James 63: In addition to the Army Corps. of Engineers maps, data on bridge clearances may be found in the __________.
Y a. Light List N b. Waterways Journal N c. Army Corps. of Engineers Regulations N d. Channel Report 251: You alter course from your 0045 position to head for Mattituck Breakwater Light "MI". If the visibility is 10 miles and you make good 9 knots, at what time will you lose sight of Saybrook Breakwater Light?
Y a. 0100 N b. 0123 N c. 0131 N d. The light is visible all the way to Mattituck Inlet 492: At 0748, you change course to 160°T. What loran reading can you follow to remain on this course?
N a. 9960-W-14660.0 Y b. 9960-W-14651.0 N c. 9960-Y-43943.8 N d. 9960-Y-43852.0 538: Determine the distance from LAT 23°24'S, LONG 13°54'E to LAT 23°24'S, LONG 42°48'W. by parallel sailing.
N a. 3119.3 miles Y b. 3122.2 miles N c. 3124.5 miles N d. 3126.6 miles 593: What is the length of the trip?
N a. 1195.4 miles N b. 1223.1 miles Y c. 1520.1 miles N d. 1657.8 miles 702: 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 N b. 43.2 feet Y c. 47.2 feet N d. 57.5 feet 1139: You are passing the Bayou Sara Gage which reads 3.9 feet. The low water reference plane for Bayo Sara is 5.25 feet. Which of the following statements is TRUE?
N a. The river level is above the Low Water Reference Plane. N b. Red Store Landing Revetment is ahead on your starboard side N c. This gage reading is at a lower elevation than the same reading on the Gage at Head of Passes. Y d. None of the above. 1163: What is the mile point of the Fulton Gage?
N a. 598 AHP N b. 632 AHP N c. 687 AHP Y d. 778 AHP 1191: On 14 October , your 0800 ZT DR 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. 1142 N b. 1148 N c. 1152 Y d. 1156 1259: On 10 April , your 1630 ZT DR position is LAT 21°03.0'N, LONG 63°11.0'W. You are on course 324°T at a speed of 22 knots. What will be the zone time of sunset at your vessel?
N a. 1805 N b. 1814 N c. 1818 Y d. 1833 1414: What is the mile point of the Fulton Gage?
N a. 598 AHP N b. 632 AHP N c. 687 AHP Y d. 778 AHP 1424: You pass Springfield Bend Lt. (mile 244.8 AHP) at 1242, on 17 October, 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 10.5 mph?
N a. 1905, 19 October N b. 2122, 19 October Y c. 0519, 21 October N d. 0847, 21 October 1497: On 19 November , your 0146 ZT position is LAT 33°48'N, LONG 25°22'E. You observe Polaris bearing 359.8°pgc. At the time of the observation the helmsman noted that he was heading 224°pgc and 222.5°psc. The variation is 2°E. What is the deviation for that heading?
N a. 2.0°E N b. 0.5°E Y c. 1.0°W N d. 1.5°W 1541: 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 Y c. 2329, 14 September N d. 0210, 15 September 1706: The highest point on your towboat is 53 feet above the water, and the Helena Gage (mile 663 AHP) reads 3.9 feet. What is the vertical clearance when you pass under the B-span of the Helena Highway Bridge in Helena?
N a. 59.9 feet Y b. 62.5 feet N c. 64.1 feet N d. 65.5 feet 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 1888: On 8 April , your evening DR position is LAT 22°16.0'N, LONG 157°58.3'W. You observe an unidentified star bearing 238°T at an observed altitude (Ho) of 50°02.7'. The chronometer reads 05h 09m 57s, and is 01m 23s slow. What star did you observe?
N a. Betelgeuse N b. Aldebaran Y c. Alnilam N d. Bellatrix 1949: The circle with black and white quadrants located at mile 435.6 AHP is a __________.
N a. Daymark N b. Electrical Tower Y c. River Gage N d. Information Board 2062: You are downbound, passing by Spanish Moss Lt. (mile 534.2 AHP), when you observe on your Mississippi River map several black broken lines extending into the river from the bank. These indicate __________.
N a. fleeting areas N b. revetments N c. dikes Y d. weirs 2107: 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 2107: 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 2463: You have steamed 491 miles at 20 knots and burning 568 barrels of fuel per day. You must decrease your consumption to 265 barrels per day with 313 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?
N a. 10.9 N b. 14.3 Y c. 17.1 N d. 18.2 2578: On 12 November, you are taking a time tick using the 1600 GMT BBC Broadcast. You hear five pulses followed by a longer pulse. At the start of the longer pulse you start a stopwatch. You stop the stopwatch at the same time reading the chronometer with the following results: stopwatch 03m 19s, chronometer 15h 59m 46s. What is the chronometer error?
N a. 01m 14s slow N b. 03m 19s fast Y c. 03m 33s slow N d. 06m 54s slow 2586: At 2100 Branford Reef Light bears 347°psc and Falkner Island Light bears 059°psc. You also get a radar range of 5.3 miles from Branford Reef Light. What are your LORAN readings?
N a. 14994.0, 26473.0, 43982.0 N b. 14994.5, 26482.0, 43982.0 Y c. 14996.0, 26477.5, 43981.0 N d. 14997.5, 26479.5, 43981.0 2675: At 1423 you are on course 072 T° at 12.2 knots, when you sight a rock awash bearing 070°T at a range of 3.6 miles. If you change course at 1427, what course would you steer to leave the rock 1.0 mile abeam to port?
N a. 049° N b. 054° N c. 086° Y d. 091° 2689: You are steering 107°T, and a light is picked up dead ahead at a distance of 11 miles at 0847. You change course to leave the light 3 miles off to starboard. If you are making 15.5 knots, what is your ETA at the position 3 miles off the light?
Y a. 0928 N b. 0931 N c. 0934 N d. 0937 2701: You are underway on course 204°T at a speed of 17.3 knots. You sight a light bearing 205°T at a radar range of 4.7 miles at 1222. If you change course at 1228, what is the course to steer to leave the light abeam to port at 1.5 miles?
N a. 223°T N b. 229°T Y c. 236°T N d. 240°T 3058: The propeller on a vessel has a diameter of 20.9 feet and a pitch of 19.6 feet. What would be the apparent slip if the vessel cruised 447 miles in a 23 hour day (observed distance) at an average RPM of 108?
N a. -5.6% N b. +5.6% N c. -7.0% Y d. +7.0% 3064: The propeller of a vessel has a pitch of 19.0 feet. If the vessel traveled 183.5 miles (observed distance) in 24 hours at an average of 44 RPM, what was the slip?
Y a. +7.4% N b. -7.4% N c. +11.6% N d. -11.6% 3265: You have steamed 1587 miles at 11.2 knots, and have consumed one-half of your total fuel capacity of 2840 bbls. What is the maximum speed you can steam to complete the remaining 1951 miles?
N a. 9.1 knots N b. 9.9 knots Y c. 10.1 knots N d. 11.6 knots 3628: Your vessel is steering course 352°psc, variation for the area is 11°E, and deviation is 9°W. The wind is from the northeast, producing a 1° leeway. What true course are you making good?
N a. 349°T N b. 351°T Y c. 353°T N d. 355°T 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 10209: 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 port?
N a. 064°psc Y b. 077°psc N c. 088°psc N d. 092°psc 11402: At 1018 your position is LAT 41°14.4'N, LONG 72°07.2'W. At 1036 your vessels position is LAT 41°13.1'N, LONG 72°16.1'W. What was your true course and speed made good?
Y a. 259° at 22.6 knots N b. 245° at 23.1 knots N c. 079° at 22.8 knots N d. 065° at 25.5 knots 13006: Your 1600 position is LAT 41°08.0'N, LONG 72°44.8'W. You are making turns for 14 knots. What is your ETA at Mattituck Inlet?
N a. 1636 N b. 1643 Y c. 1647 N d. 1651 14604: Contour elevations on this chart refer to heights in feet above mean __________.
N a. lower low water N b. high water N c. low water Y d. sea level 15107: At 1752, your position is LAT 37°04.3'N, LONG 76°06.4'W. On a flood current you should expect to be set to the __________.
Y a. north northwest N b. south southwest N c. east southeast N d. east 15140: At 2100 your position is 40°44.1'N, 72°07.6'W. From this position, at which time will Montauk Point Light become visible if the luminous range of the light is 8 miles?
N a. 2215 Y b. 2221 N c. 2227 N d. 2235 15146: At 0016 your position is 41°10.3'N, 71°53.0'W. You are steering a course of 296° true with no set and drift. At 0049 Race Rock Light is on your starboard beam. What was your speed made good from your 0016 position?
N a. 13.8 knots N b. 14.4 knots N c. 15.0 knots Y d. 15.6 knots 15359: Based on your running fix, you __________.
N a. have a head current Y b. have a following current N c. are being set to the north N d. are not affected by a current 15659: At 0705, you change course to 096°T. At this time, Race Rock Light is bearing 000°T at 0.35 mile. You are now governed by which Navigation Rules?
Y a. COLREGS N b. Local Pilot Rules N c. Inland Rules N d. Coastal Fishery Rules 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 16063: At 2013, you sight Thimble Shoal Light in line with Old Point Comfort Light bearing 258°pgc. At the time of the bearing, the vessel was headed 142°pgc and 151°psc. Based on this, you __________.
N a. know the gyro error is 2°E N b. should adjust the magnetic compass N c. verified that the variation is 10°W Y d. have checked the deviation table for a magnetic heading of 150° 16141: The speed you can expect to make good over your course while steering to make 150°T is __________.
N a. 11.0 knots Y b. 11.4 knots N c. 14.0 knots N d. 14.4 knots 16257: If your engines turn for 6.5 knots, and you encounter a 0.5 knot southerly current after weighing anchor. What is your ETA at point A?
N a. 0511 N b. 0501 Y c. 0450 N d. 0440 16262: What was the speed made good from 0240 to 0400?
N a. 5.2 knots N b. 5.6 knots Y c. 6.0 knots N d. 6.4 knots 16265: At 0600, you are on course 241°psc at 6.5 knots. Chesapeake Light bears 153° per standard magnetic compass,
and Cape Henry Light bears 261° per standard magnetic compass. What is the position of your 0600 fix?
N a. LAT 36°59.0'N, LONG 75°47.4'W Y b. LAT 36°59.3'N, LONG 75°47.7'W N c. LAT 36°59.5'N, LONG 75°47.8' N d. LAT 36°59.3'N, LONG 75°48.0' 16316: At 0900, the current is flooding in a direction of 350°T at 1.2 knots. If your engines are turning RPMs for 9 knots, which course should you steer per standard magnetic compass to make good a course of 297° true?
Y a. 302°psc N b. 311°psc N c. 317°psc N d. 319°psc 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 16366: From your 0600 fix, you change course to 250°T. At 0605,
Cape Henry Light bears 250°T. At 0615, it bears 251°T. At 0625, it bears 252°T. Based on this you know you are __________.
Y a. being set to the south N b. being set to the north N c. meeting a current from dead ahead N d. running with a current from dead astern 16506: At 0630, you pass Buoy "PI" close abeam on the starboard side. You are steering 078°T and are headed directly toward Race Rock Light. At 0654, Little Gull Island Light is bearing 207°T and Race Rock Light is bearing 072°T. What is your 0654 position?
Y a. LAT 41°14.0'N, LONG 72°05.3'W N b. LAT 41°14.2'N, LONG 71°54.6'W N c. LAT 41°14.4'N, LONG 72°06.8'W N d. LAT 41°19.0'N, LONG 72°05.2'W 16507: What is your speed from your 0630 position, with Buoy "PI"
close abeam, to your 0654 position?
N a. 8.2 knots N b. 9.3 knots Y c. 10.5 knots N d. 11.4 knots