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.
178: If the Old Point Comfort main light was inoperative what emergency light would be shown?
Y a. Light of reduced intensity N b. Alternating red and white N c. Flashing yellow N d. Strobe light 399: A vessel at LAT 11°22'S, LONG 009°18'E heads for a destination at LAT 06°52'N, LONG 57°23'W. Determine the true course and distance by Mercator sailing.
N a. 296°T, 3,825.3 miles N b. 296°T, 4,154.2 miles N c. 285°T, 3,825.3 miles Y d. 285°T, 4,154.2 miles 453: Determine the great circle distance and initial course from LAT 08°36.0'N, LONG 126°17.0'E to LAT 02°12.0'S, LONG 81°53.0'W.
N a. 9015 miles, 067°T N b. 9076 miles, 067°T N c. 9105 miles, 079°T Y d. 9076 miles, 079°T 487: At 0700, your gyro alarm sounds. What course should you steer by the standard magnetic compass in order to maintain your original heading of 078°T?
Y a. 095°psc N b. 090°psc N c. 080°psc N d. 062°psc 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 602: At 1845 zone time, on 24 October , you depart Bimini Island, LAT 25°50.0'N, LONG 77°00.0'W (ZD +5). You are bound for Bishop Rock, LAT 49°40.0'N, LONG 6°34.0'W, and you estimate your speed of advance at 13.6 knots. The distance is 3,491 miles. What is your estimated zone time of arrival at Bishop Rock?
N a. 0627, 3 November N b. 1642, 3 November N c. 0939, 4 November Y d. 1627, 4 November 981: On 20 September , your 0730 zone time position was LAT 28°58.0'N, LONG 152°26.0'W. Your vessel was steaming on course 225°T at a speed of 19.0 knots. An observation of the Sun's lower limb was made at 0931 ZT. The chronometer read 07h 29m 20s and was slow 02m 22s. The observed altitude (Ho) was 44°14.4'. LAN occurred at 1206 zone time. The observed altitude (Ho) was 62°49.5'. What was the longitude of your 1200 zone time running fix?
N a. LONG 153°32.5'W N b. LONG 153°27.2'W Y c. LONG 153°23.5'W N d. LONG 153°20.0'W 993: Your 0745 ZT, 15 July , position is LAT 29°04.0'N, LONG 71°17.5'W. You are on course 165°T, and your speed is 8.0 knots. You observed 3 morning sun lines. Determine the latitude and longitude of your 1130 running fix? NP-0003
Y a. LAT 28°35.0'N, LONG 71°08.5'W N b. LAT 28°39.8'N, LONG 71°04.0'W N c. LAT 28°40.5'N, LONG 71°13.0'W N d. LAT 28°43.3'N, LONG 71°02.5'W 1246: Which of the following statements are TRUE?
N a. Oil well structures are listed in the Light List. N b. All aids to navigation with lights have lateral significance. Y c. On the Western Rivers, crossing marks may exhibit white lights. N d. None of the above. 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 1455: On 4 October , your 1907 zone time DR position is LAT 25°15.0'S, LONG 105°44.0'E. At that time, you observe Deneb bearing 011.5°psc. The chronometer reads 00h 07m 42s, and the chronometer error is 00m 36s fast. The variation is 7.5°W. What is the deviation of the standard compass?
Y a. 3.2°E N b. 4.3°W N c. 2.1°E N d. 2.1°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 1705: What is the mile point of the Rosedale, MS Gage?
N a. 554.2 AHP Y b. 592.2 AHP N c. 632.5 AHP N d. 663.0 AHP 1747: As you pass under the Greenville Highway Bridge, you estimate the current as 3.5 mph. What is the speed over the ground, if your vessel is making turns for 9 mph?
N a. 14.5 mph N b. 13.5 mph Y c. 12.5 mph N d. 11.5 mph 1778: At 2234 ZT, on 14 July , in DR position LAT 34°03'N, LONG 150°16'W you observe an amplitude of Saturn. The planet is about one Sun's diameter above the visible horizon and bears 272.1°pgc. The variation is 14°E. What is the gyro error?
N a. 0.5°W N b. 0.5°E Y c. 1.5°W N d. 2.5°E 1961: The Delta-Friar Point revetment on the LMR extends from mile __________.
Y a. 657.3 - 652.2 LDB N b. 652.8 - 649.6 RDB N c. 648.5 - 645.5 LDB N d. 645.6 - 641.4 RDB 2013: On 28 October , morning twilight will occur around 0524 ZT in LAT 25°25.0'N, LONG 32°33.3'W. Considering their magnitude and location, which group will be the three stars best suited to observe for a star fix at star time?
N a. Sirius, Hamal, Denebola N b. Sirius, Denebola, Dubhe Y c. Sirius, Capella, Denebola N d. Sirius, Mirfak, Hamal 2125: From your 0410 fix, what is the course per standard magnetic compass to enter York Spit Channel with buoy "29"
close abeam to starboard?
N a. 172°psc N b. 176°psc Y c. 198°psc N d. 202°psc 2171: On 8 August , at 0545 ZT, morning stars were observed, and the vessel's position was determined to be LAT 26°16.0'
S, LONG 94°16.0'E. Your vessel is steaming at 20.0 knots on a course of 346°T. A sextant observation of the Sun's lower limb is made at 0905 ZT. The chronometer reads 03h 02m 52s, and the sextant altitude (hs) is 38°07.5'. The index error is 5.2' off the arc, and the chronometer error is 2m 17s slow. Your height of eye on the bridge is 72 feet (22.0 meters). What is the observed altitude (Ho) and azimuth (Zn) of this sight using the assumed position?
Y a. 38°19.4', 048.4°T N b. 38°19.4', 131.6°T N c. 38°54.9', 048.4°T N d. 38°54.9', 131.6°T 2677: You sight a light 9° on your starboard bow at a distance of 21 miles. Assuming you make good your course, what will be your distance off the light when abeam?
Y a. 3.3 miles N b. 3.7 miles N c. 4.0 miles N d. 4.3 miles 2903: You are steaming on a course of 025°T at 15.5 knots. At 0645 you observe a lighthouse bearing 059°T. At 0655 the same lighthouse bears 075°T. What is your distance off at the second bearing?
N a. 1.5 miles N b. 2.6 miles N c. 4.0 miles Y d. 5.3 miles 3073: If the speed necessary for reaching port at a designated time is 16.8 knots and the pitch of the propeller is 22.3 feet, how many revolutions per minute will the shaft have to turn, assuming a 4% negative slip?
N a. 61 N b. 66 Y c. 73 N d. 80 3109: You are turning 90 RPM, with a propeller pitch of 24 feet, and an estimated slip of -3%. What is the speed of advance?
N a. 18.8 knots N b. 19.2 knots N c. 20.6 knots Y d. 21.9 knots 3285: While steaming at 19.4 knots, your vessel consumes 392 barrels of fuel oil per day. In order to reduce consumption to 182 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?
N a. 13.2 knots Y b. 15.0 knots N c. 17.4 knots N d. 18.2 knots 3295: Your vessel consumes 178 barrels of fuel per day at a speed of 13.5 knots. What will be the fuel consumption of your vessel at 15.0 knots?
N a. 172 bbls N b. 198 bbls N c. 219 bbls Y d. 244 bbls 3601: You are steering 142°pgc to make good your desired course. The gyro error is 1°E . The variation is 8°W. What should you steer by standard magnetic compass to make good the desired course?
DEVIATION TABLE MAGNETIC HEADING DEV.
120° 4°E 135° 2°E 150° 0°
N a. 133°psc N b. 146°psc N c. 148°psc Y d. 151°psc 3624: Your vessel is steering course 073°psc, variation for the area is 15°E, and deviation is 4°E. The wind is from the southeast, producing a 4° leeway. Which true course are you making good?
N a. 050°T N b. 058°T Y c. 088°T N d. 096°T 10105: What is the course psc from Chesapeake Light to North Chesapeake Entrance Buoy NCA?
N a. 313°psc N b. 317°psc Y c. 321°psc N d. 325°psc 10702: At 1922 your position is LAT 41°09.2'N, LONG 71°40.6'W. You are on course 028° per standard magnetic compass at 6.4 knots. At 2046 your position is LAT 41°17.2'N, LONG 71°38.6'W. What were the set and drift?
Y a. 235°T at 0.8 knot N b. 247°T at 1.1 knots N c. 049°T at 0.7 knot N d. 062°T at 1.0 knots 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 11502: At 1016 your GPS position is LAT 41°07.6'N, LONG 71°38.5'W. At 1104 your position is LAT 41°00.4'N, LONG 71°29.4'W. What was the speed made good between the two positions?
N a. 10.9 knots N b. 11.7 knots Y c. 12.5 knots N d. 13.6 knots 11507: At 1014 you depart the entrance to Lake Montauk with light "1" close aboard. Your course is 066° per standard magnetic compass, and the speed is 8.6 knots. At 1222 your position is LAT 41°20.0'N, LONG 71°40.0'W. What is the speed made good?
N a. 8.4 knots N b. 8.6 knots Y c. 9.2 knots N d. 9.6 knots 11904: What is the true course to steer between the entrance to Winnapaug Pond (LAT 41°19.6'N, LONG 71°45.8'W) and the entrance to Lake Montauk (LAT 41°04.8'N, LONG 71°56.3'W), if you are turning for 6.5 knots, allow for a current of 295°T at 0.9 knot, and an easterly wind is causing 4° of leeway?
Y a. 196°T N b. 200°T N c. 213°T N d. 217°T 12601: You are on course 062° per standard magnetic compass when you take the following bearings: Branford Reef Light 060°psc Stratford Point Light 272°psc New Haven Light 324°psc What is your position?
N a. LAT 41°07.1'N, LONG 72°53.4'W Y b. LAT 41°10.5'N, LONG 72°52.8'W N c. LAT 41°11.6'N, LONG 72°50.0'W N d. LAT 41°13.3'N, LONG 72°48.7'W 13809: Which chart, of the same scale, continues eastward from this chart?
Y a. 13205 N b. 13212 N c. 13214 N d. 13216 14005: At 0800 your vessel is at mile 110 on the Columbia River. You are steaming in an easterly direction. At 0854 Lady Island Range is in line dead astern and Government Island Upper Range is in line on your port quarter. What speed have you averaged?
N a. 8.1 mph N b. 8.5 mph Y c. 9.4 mph N d. 10.2 mph 15114: Your 1900 position is LAT 37°12.9'N, LONG 76°13.5'W. You change course to 317°pgc and slow to 8.0 knots. What is the course per standard magnetic compass?
N a. 331°psc Y b. 329°psc N c. 311°psc N d. 309°psc 15638: At 2009 you are leaving New London Harbor with buoy "2"
close abeam to port. What is the true course to the Race that will leave Race Rock Light 0.5 mile abeam to port?
N a. 156° N b. 160° Y c. 164° N d. 168° 15713: What do the dotted lines around Goose Island and Kimberly Reef represent?
N a. Limiting danger N b. Breakers Y c. Depth contours N d. Tide rips 15843: You continue to steer 195°T. You pass Cape Charles Lighted Bell Buoy "14", 0.9 miles abeam to starboard at 2111. Your speed made good from 2045 to 2111 is __________.
N a. 13.7 knots N b. 14.1 knots N c. 14.5 knots Y d. 14.8 knots 16344: After changing course to allow for a current of 090°T at 1.0 knot, what time will Endeavor Shoals Lighted Gong Buoy "3" be abeam to port?
N a. 2340 N b. 2345 Y c. 2350 N d. 2355 16361: At 0400, you take the following bearings:
Sand Shoal Inlet South Light bearing 305°pgc
Cape Charles Light bearing 241°pgc
What was the course made good since 0240?
N a. 182°T Y b. 185°T N c. 189°T N d. 192°T 16411: You get underway at 1030. The wind is out of the SSE and you estimate 3° leeway. What course should you steer per gyrocompass to make good a desired course of 075°T?
N a. 074°pgc N b. 076°pgc N c. 078°pgc Y d. 080°pgc 16468: When Cape Henry Light is abeam, what is the approximate distance to Yorktown?
N a. 58 miles N b. 55 miles N c. 42 miles Y d. 34 miles 16607: You depart from the position in the previous question at 2114 and make good 12 knots on a course of 040°T. At what time will you sight New Haven Light if the visibility is 11 miles?
N a. The light is visible at 2114. N b. 2140 N c. 2152 Y d. 2159