Q420 - Navigation General: Great Lakes and Inland, USCG prep certification 2026

Progress: 24% (23/94)

Learning progress ?

1. What is a CORRECT reply to a pilot's request, "How's your head"?Not learned 2. What does the helm command "Steady as you go" mean?Not learned 3. When is a lookout permitted to leave his station?Not learned 4. Which statement is TRUE when a pilot is embarked on a vessel?Not learned 5. While steering by autopilot you notice that the vessel has deviated 15 degrees from course and there is no corrective rudder being applied. As a standard operating procedure you should first __________.Not learned 6. How should a vessel spotted at 45° relative be reported?Not learned 7. You are on watch and the pilot has just anchored the vessel. What is the next thing that you should do after the anchor has been let go?Not learned 8. While on watch at sea you must maintain a proper lookout at all times. On a 700-foot cargo vessel being hand-steered during daylight hours in good visibility and clear of any navigational hazards, who may be the lookout?Not learned 9. You are a watchstanding mate and have come to the bridge to relieve the watch. After reviewing the chart and having been briefed by the off-going mate, you are now ready to affect the relief. Which of the following is exemplary of the statement that would officially transfer the watch?Not learned 10. You are a watchstanding mate and have come to the bridge to relieve the watch. After reviewing the chart and having been briefed by the off-going mate, you are now ready to affect the relief. When is the watch officially transferred to you?Not learned 11. At 0000 you fix your position and change course to 090°T. At 0030 you again fix your position, and it is 0.5 mile east of your DR. Which statement is TRUE?Not learned 12. According to Buys Ballot's Law, when an observer in the Southern Hemisphere experiences a northwest wind, where is the center of the low pressure located?Not learned 13. How can the accuracy of an azimuth circle be checked?Not learned 14. In addition to monitoring channel 16, all Corps of Engineer locks may use as working channels __________.Not learned 15. When adjusting a magnetic compass for error, which is TRUE concerning the deviation table?Not learned 16. What is an advantage of the magnetic compass aboard vessels?Not learned 17. Which agency maintains federal aids to navigation?Not learned 18. All aids to navigation listed in the Mississippi River System Light List are shown as miles from a reference point and on the __________.Not learned 19. You are at anchor in the anchorage at the entrance to Delaware Bay. You weigh anchor at 1445 DST (ZD +4) on 24 July 1983 and proceed northbound enroute to Philadelphia at a speed of 10 knots. Which of the following should you expect to experience?Not learned 20. Aneroid barometers are usually calibrated to indicate atmospheric pressure in which units?Not learned 21. You are approaching the first of two drawbridges that span a narrow channel. The second drawbridge is close to the first. Which signals should you sound?Not learned 22. You are approaching a lock and see a flashing amber light located on the lock wall. Which action should you take?Not learned 23. What is the approximate wave length of an X Band Radar operating on a frequency of approximately 9.5 GHz?Not learned 24. On an Army Corps of Engineers navigation map, how is each mile A.H.P. on the Lower Mississippi River marked?Not learned 25. The ARPA may swap targets when automatically tracking if two targets are in which situation?Not learned 26. What is the basic principle of the magnetic compass?Not learned 27. What does a buoy with a composite group-flashing light indicate?Not learned 28. Buoys which only mark the left or right side of the channel will never exhibit a light with which characteristic?Not learned 29. Buoys are marked with reflective material to assist in their detection by searchlight. Which statement is TRUE?Not learned 30. A buoy marking a wreck will show a(n) __________.Not learned 31. Which buoy may be odd numbered?Not learned 32. A cardinal mark showing an uninterrupted quick-flashing white light indicates the deepest water is located in which quadrant?Not learned 33. What causes compass deviation?Not learned 34. Which causes the Earth's irregular heating?Not learned 35. You are in a channel inbound from sea. A daymark used to mark a channel junction when the preferred channel is to starboard will have the shape indicated by what letter in illustration D045NG below?Not learned 36. What is characteristic of an isophase light?Not learned 37. Which would be the characteristic of an occulting light?Not learned 38. The chart indicates the variation was 3°45'E in 1988, and the annual change is increasing 6'. If you use the chart in 1991 how much variation should you apply?Not learned 39. The chart indicates the variation was 3°45'W in 1988, and the annual change is decreasing 6'. If you use the chart in 1991 how much variation should you apply?Not learned 40. What do chart legends printed in capital letters indicate about the associated landmark?Not learned 41. What are Cirrus clouds primarily composed of?Not learned 42. The climate of the eastern coast of the Gulf of Mexico __________.Not learned 43. Which clouds are described as high clouds, composed of small white flakes or scaly globular masses, and often banded together to form a "mackerel sky"?Not learned 44. Which clouds are described as uniform, grayish-white cloud sheets that cover large portions of the sky, and are responsible for a large percentage of the precipitation in the temperate latitudes?Not learned 45. Which clouds is a thin, whitish, high cloud popularly known as "mares' tails"?Not learned 46. What color lights do lighted information markers display?Not learned 47. Which is TRUE if the compass heading and the magnetic heading are the same?Not learned 48. Which condition(s) is(are) necessary for the formation of dew?Not learned 49. Considering the general circulation of the atmosphere, what is the name given to the wind system between latitudes 30°N and 60°N?Not learned 50. Who should be consulted for changing conditions of controlling depths in major channels?Not learned 51. You are on course 209°T. In order to check the longitude of your vessel, you should observe a celestial body on which bearing?Not learned 52. You are on course 312°T. To check the speed of your vessel you should observe a celestial body on which bearing?Not learned 53. You are on course 238°T. To check the course of your vessel you should observe a celestial body on which bearing?Not learned 54. You are on course 251°pgc and 241° per magnetic compass, when you observe a range in line bearing 192°pgc. The chart indicates that the range is in line on a bearing of 194°T. The variation is 16°E. What is the deviation of the magnetic compass?Not learned 55. While on a course of 283°pgc, a light bears 10° on the port bow at a distance of 8.3 miles. What course should you steer to pass 3.5 miles abeam of the light leaving it to port?Not learned 56. Cumulonimbus clouds are formed by __________.Not learned 57. When does a current perpendicular to a vessel's track have the greatest effect on the vessel's course made good?Not learned 58. Where can information about the direction and velocity of rotary tidal currents be found?Not learned 59. Which daymark has no lateral significance?Not learned 60. A daymark used to indicate the safe water in a channel will have which of the shapes shown in illustration D045NG below?Not learned 61. The depth of the water is indicated on a chart as 32 meters. What is this equal to?Not learned 62. What describes a flood current?Not learned 63. Which is TRUE concerning privately maintained aids to navigation included in the Light List?Not learned 64. You desire to make good 152°T. The magnetic compass deviation is 4°E, the variation is 5°E, and the gyro error is 3°E. A southwesterly wind produces a 4° leeway. Which course would you steer per standard compass to make good the true course?Not learned 65. You desire to make good a true course of 129°. The variation is 7°E, magnetic compass deviation is 4°E, and gyrocompass error is 2°W. An easterly wind produces a 4° leeway. What is the course to steer per standard magnetic compass to make the true course good?Not learned 66. Determine the time after 0300 CST (ZD +6) when the velocity of the tidal current will be 0.5 knot on 16 April 1983, at Port Arthur Canal Entrance, TX.Not learned 67. Deviation is the angle between the __________.Not learned 68. Which is the difference between the DR position and a fix, both of which have the same time?Not learned 69. What does a Doppler log in the bottom return mode indicate?Not learned 70. Your draft is 24 feet. You wish to pass over an obstruction near Lovell Island, MA, on 6 May 1983. The charted depth is 22 feet. Allowing a safety margin of 3.0 feet, what is the earliest time after 0200 DST (ZD +4) that this passage can be made?Not learned 71. An ECDIS is required to display which information?Not learned 72. ECDIS units incorporate Digital Chart Data that utilizes which formats?Not learned 73. What enables you to estimate the bearing of a storm's center?Not learned 74. You are enroute to assist vessel A. Vessel A is underway at 5.5 knots on course 033°T, and bears 248°T at 64 miles from you. What is the course to steer at 13 knots to intercept vessel A?Not learned 75. You are enroute to assist vessel A. Vessel A is underway at 5.5 knots on course 033°T, and bears 248°T at 64 miles from you. What is the time to intercept if you make 13 knots?Not learned 76. As you enter a U.S. channel from seaward, which is TRUE concerning the numbers on the buoys?Not learned 77. Entering a harbor, you take a bearing on a range and get 338° per gyrocompass (pgc). The true bearing from the chart is 340°T. Variation for the area is 14°E. Your course is 329° per standard magnetic compass (psc) and 338°pgc. What is the deviation on this heading?Not learned 78. Which feature, when set to zero, might allow a GPS unit to have an accuracy equivalent to Precise Positioning Service receiver capability?Not learned 79. To find the specific phase characteristic of a lighthouse on a sound of the United States you would use which reference?Not learned 80. What does the Flinders bar on a magnetic compass compensate for?Not learned 81. Fog forms when which condition exists?Not learned 82. Which of the following is the most accurate method of determining gyrocompass error while underway?Not learned 83. Which of the following describes the principal purpose of magnetic compass adjustment?Not learned 84. Which of the following is a standard correction applied to the reading of an aneroid barometer?Not learned 85. The following types of vessels are awaiting lockage on the upper Mississippi. Which type of vessel is normally passed through the lock first?Not learned 86. You get underway from the shipyard in Chester, PA, at 1515 DST (ZD +4) on 6 August 1983, enroute to sea. You will be turning for eight knots. What current can you expect at Fourteen Foot Bank Light?Not learned 87. Which government agency publishes the U.S. Coast Pilot?Not learned 88. A green buoy has a yellow triangle on it. What type of buoy is this?Not learned 89. What is the gyrocompass error resulting from your vessel's movement in OTHER than an east-west direction?Not learned 90. How often is The Local Notice to Mariners updated?Not learned 91. What does a hygrometer measure?Not learned 92. Under the IALA-B Buoyage System, when entering from seaward, a buoy that should be left to port will be which color?Not learned 93. In the IALA Buoyage System, preferred-channel-to-port or preferred-channel-to-starboard buoys, which is TRUE when fitted with lights?Not learned 94. Under the IALA Buoyage System, which topmark shown in illustration D023NG below will be displayed on a safe watermark?Not learned 95. Under the IALA cardinal system, a mark with quick white light showing 3 flashes every 10 seconds indicates that the safest water in the area is in which location?Not learned 96. Under the IALA cardinal system, what does a mark with a quick white light showing 6 flashes followed by one long flash indicate in relation to the location of the safest water?Not learned 97. In illustration D045NG below, a green-and-red banded daymark, with the uppermost band green, will have which of the following shapes?Not learned 98. In illustration D051NG below, why was the position labeled "D" plotted?Not learned 99. Which indication on the barometer is most meaningful in forecasting weather?Not learned 100. What information is NOT found in the chart title?Not learned 101. Which of the sources contains information on Northern Right Whales?Not learned 102. Information about the pilotage available at Miami harbor may best be obtained from which publication?Not learned 103. Which information is NOT required to be posted in or near the wheelhouse?Not learned 104. Which item contains information about temporary, short-term changes affecting the safety of navigation in U.S. waters?Not learned 105. How is the intensity of a light expressed in the Light Lists?Not learned 106. Isobars on a weather map are useful in predicting which element of the weather?Not learned 107. On an isomagnetic chart, which term is used for the line of zero variation?Not learned 108. Which item in illustration D034NG below shows a flashing light?Not learned 109. What is the length of a nautical mile?Not learned 110. Which light characteristic may be used on a special mark?Not learned 111. Which light characteristic may be used on a special purpose mark?Not learned 112. Which is TRUE concerning Light Lists for coastal waters?Not learned 113. The Light List indicates that a dayboard is a type KGW. You should take which action?Not learned 114. The Light List indicates that a light has a nominal range of 10 miles and is 11 feet high. If the visibility is 15 miles and your height of eye is 20 feet, at what approximate distance will you sight the light?Not learned 115. The Light List shows that a navigational light has a nominal range of 12 miles and a height above water of 25 feet (7.6 meters). Your height of eye is 38 feet (11.6 meters) and the visibility is 5.5 miles. At what approximate range will you FIRST sight the light?Not learned 116. The Light List shows that a navigational light has a nominal range of 19 miles and a height above water of 52 feet (15.8 meters). Your height of eye is 42 feet (12.8 meters) and the visibility is 10.0 miles. At what approximate range will you first sight the light?Not learned 117. Which would you expect to see on a lighted preferred-channel buoy?Not learned 118. Lines drawn through points on the Earth having the same atmospheric pressure are known by which term?Not learned 119. Which of the listed properties does warm air possess?Not learned 120. What do the magnets placed in horizontal trays in the compass binnacle compensate for?Not learned 121. What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism?Not learned 122. Which term is given to magnetism which is present only when the material is under the influence of an external field?Not learned 123. Which is a major advantage of the NAVTEX system when compared to other systems?Not learned 124. To make sure of getting the full advantage of a favorable current, you should reach an entrance or strait at which time in relation to the predicted time of the favorable current?Not learned 125. How many high waters usually occur each day on the East Coast of the United States?Not learned 126. Which maritime radio system, consisting of a series of coast stations, transmits coastal warnings?Not learned 127. If you are the Master of a towing vessel who’s only working radar no longer functions, what must you do?Not learned 128. How may a spherical buoy be identified?Not learned 129. Which measurement uses mean high water as the reference plane?Not learned 130. Mean lower low water is the reference plane used for which measurements?Not learned 131. Which term is given to the mechanical lifting of air by the upslope slant of the terrain?Not learned 132. In modern fathometers, what produces the sonic or ultrasonic sound waves?Not learned 133. When the moon is new or full, which type of tides occur?Not learned 134. What must the owner or Master do if any of the towing vessel's required navigational safety equipment fails during a voyage?Not learned 135. Which name is given to the pressure-sensitive element of an aneroid barometer?Not learned 136. The National Geospatial-Intelligence Agency (formerly the National Imagery and Mapping Agency) would produce a chart of the coast of which area?Not learned 137. The National Oceanic and Atmospheric Administration publishes which item?Not learned 138. What natural feature is responsible for the rather even climate found on the Florida peninsula throughout the year?Not learned 139. Which navigational equipment is required to be tested and logged before a towing vessel embarks on a voyage of more than 24 hours?Not learned 140. When do neap tides occur?Not learned 141. In North America, which direction do the majority of the weather systems move?Not learned 142. You have been observing your radar screen and notice that a contact on the screen has remained in the same position, relative to you, for several minutes. Your vessel is making 10 knots through the water. Which statement is TRUE?Not learned 143. What occurs when rising air cools to the dew point?Not learned 144. Which is one of the advantages of a vessel utilizing a NAVTEX unit to receive MSI?Not learned 145. The path that a vessel is expected to follow, represented on a chart by a line drawn from the point of departure to the point of arrival, is known by which term?Not learned 146. Which piece of navigational safety equipment is NOT required on towing vessels over 12 meters in length, provided that the vessel remains within the navigable waters of the U.S.?Not learned 147. You are planning to enter an unfamiliar U.S. port. Which publication provides information about channel depths, dangers, obstructions, anchorages, and marine facilities available in that port?Not learned 148. You plot a fix using three lines of position and find they intersect in a triangle. You should plot the position of the vessel __________.Not learned 149. On the pole side of the high-pressure belt in each hemisphere, the pressure diminishes. The winds along these gradients are diverted by the Earth's rotation toward the east. What is the name of these winds?Not learned 150. Which term is used for a position obtained by applying ONLY your vessel's course and speed to a known position?Not learned 151. The predicted time that the flood begins at the entrance to Delaware Bay is 1526. You are anchored off Chestnut St. in Philadelphia. If you get underway bound for sea at 1600 and turn for 8 knots, at what point will you lose the ebb current?Not learned 152. Prevailing winds between 30°N and 60°N latitude are from which direction?Not learned 153. A psychrometer has two thermometers that provide dry bulb and wet bulb temperatures. What can be determined by comparing these two temperature readings with a set of tables?Not learned 154. Which publication should you check for complete information on Puget Sound weather conditions?Not learned 155. Which publication contains information on navigation regulations, landmarks, channels, anchorages, tides, currents, and clearances of bridges for Chesapeake Bay?Not learned 156. Which publication indicates the HYDROLANTS or HYDROPACS issued since the previous working day?Not learned 157. What publication has information on the climate, distances, navigation regulations, outstanding landmarks, channels and anchorages of Long Island Sound?Not learned 158. Which radar control reduces weak echoes out to a limited distance from the ship?Not learned 159. Your radar displays your ship off center. As you proceed on your course, your ship's marker moves on the PPI scope while echoes from land masses remain stationary. What is this display called?Not learned 160. When recording the wind direction in the weather log, which information would you report?Not learned 161. Which is the reference datum used in determining the heights of land features on most charts?Not learned 162. In both regions of the IALA buoyage system, which topmark shown in illustration D022NG below is used on a special mark?Not learned 163. Relative humidity is the percentage of water vapor that is in the air as compared to the maximum amount it can hold at __________.Not learned 164. In a river subject to tidal currents, the best time to dock a ship without the assistance of tugs is __________.Not learned 165. You are running parallel to the coast and take a running fix using bearings of the same object. Which is TRUE if you are making less speed than used for the running fix, in relation to the position indicated by the fix?Not learned 166. A sailing chart could have which scale?Not learned 167. You are sailing south on the Intracoastal Waterway (ICW) when you sight a red nun buoy with a yellow triangle painted on it. Which statement is TRUE?Not learned 168. Which is TRUE of a sea breeze?Not learned 169. Your ship is proceeding on course 320°T at a speed of 25 knots. The apparent wind is from 30° off the starboard bow, speed 32 knots. What is the relative direction, true direction and speed of the true wind?Not learned 170. What is a "Special Warning"?Not learned 171. What is the standard atmospheric pressure as measured in inches of mercury?Not learned 172. Which statement about gyrocompass error is TRUE?Not learned 173. Which statement about radio navigational warnings is TRUE?Not learned 174. You sight an isolated danger buoy with a white flashing light showing a group of two flashes. The buoy indicates you should take which action?Not learned 175. You are steaming on a course of 246°T at 17 knots. At 2107 you observe a lighthouse bearing 207°T. At 2119 the lighthouse bears 179°T. What is your distance off at the second bearing?Not learned 176. You are steaming southward along the west coast of the United States when you encounter a buoy showing a flashing red light. Which is TRUE concerning the buoy?Not learned 177. You are steering 143°T, and a light is picked up dead ahead at a distance of 18.2 miles at 2006. You change course to pass the light 5.5 miles off abeam to port. If you are making 14.5 knots, what is your ETA at a position 5.5 miles off the light?Not learned 178. You are steering 318°psc. A northeasterly wind causes 3° of leeway. The variation is 14°E and the deviation table is extracted below. What will be the true course made good? DEVIATION TABLE Magnetic Heading Deviation 300° 2°E 315° 0 330° 2°WNot learned 179. While steering a course of 150°T, you wish to observe a body for a latitude check. What would the azimuth have to be?Not learned 180. The survey information upon which a chart is based is found at which location?Not learned 181. Which symbol represents a 2-fathom curve?Not learned 182. Which table is NOT found in the U.S. Coast Pilots?Not learned 183. How does the temperature change with the passage of an occluded front?Not learned 184. The term "flood current" refers to that time when the water __________.Not learned 185. Which term is given to the vertical angle between the horizontal and the magnetic line of force?Not learned 186. Which term is used to describe a generally circular low-pressure area?Not learned 187. Which term is used to describe the small differences between the heights of two successive high tides or two low tides, in a tidal day?Not learned 188. Which topmark shown in illustration D023NG below identifies an isolated danger?Not learned 189. Which towing vessel(s) is/are exempt from carrying radar?Not learned 190. A towing vessel is NOT required to be fitted with radar if it is __________.Not learned 191. Which is TRUE if the compass error of a magnetic compass has no deviation?Not learned 192. Which is TRUE concerning Hot air?Not learned 193. Which is TRUE concerning the points on the earth's surface where the magnetic dip is 90°?Not learned 194. The true course between two points is 337°. Your gyrocompass has an error of 3°E and you make an allowance of 5° leeway for a west wind. Which gyro course should be steered to make the true course good?Not learned 195. Which is TRUE of the direction of flow (channel) on the Corps of Engineer's Navigation Maps?Not learned 196. Which is TRUE when using the radar for navigation?Not learned 197. Two navigational hazards are located near to each other, but each is marked by an individual cardinal buoyage system. How are the buoys of one cardinal system identified from the other system?Not learned 198. Which type of cloud is composed entirely of ice crystals and is found at very high altitudes?Not learned 199. Which type of cloud formation should be of immediate concern to small craft operators?Not learned 200. The type of current which will have the greatest effect on the course made good for your vessel is __________.Not learned 201. Under the U.S. Aids to Navigation System, which category is a yellow buoy?Not learned 202. Under the U.S. Aids to Navigation System used on the Western Rivers, which is TRUE of the aids to navigation lights on the right descending bank?Not learned 203. Under the Uniform State Waterway Marking System how is a mooring buoy painted?Not learned 204. In United States waters, a buoy having red and white vertical stripes if lighted, it will have which light characteristic?Not learned 205. When using the ARPA in heavy rain, which action should you take?Not learned 206. When using a radar in an unstabilized mode, fixes are determined most easily from __________.Not learned 207. What will a veering wind do?Not learned 208. What is the velocity of the tidal current at the east end of Pollock Rip Channel at 1700 DST (ZD +4) on 23 July 1983?Not learned 209. The vertical component of the Earth's magnetic field causes induced magnetism in vertical soft iron. This changes with latitude. What corrects for this coefficient of the deviation?Not learned 210. Your vessel is on a course of 221°T at 15 knots. At 0319 a light bears 198.5°T, and at 0353 the light bears 176°T. At what time and distance off will your vessel be when abeam of the light?Not learned 211. Your vessel is on a course of 082°T at 19 knots. At 0255 a light bears 059.5°T, and at 0312 the light bears 037°T. At what time and distance off will your vessel be when abeam of the light?Not learned 212. Your vessel is on course 312°pgc and you sight a lighthouse dead ahead at a range of 10 miles. The gyro error is 3°E. What course would you steer to leave the lighthouse 1.5 miles abeam to starboard?Not learned 213. Your vessel is on a course of 358°T at 19 knots. At 0316 a light bears 024.5°T, and at 0334 the light bears 043°T. At what time and at what distance off will your vessel be when abeam of the light?Not learned 214. Your 1600 GRT vessel will be entering the navigable waters of the United States. You are required by regulations to take which action?Not learned 215. Your vessel is participating in the Voluntary Observing Ship Program, you are preparing WS Form B-80 as seen in illustration D041NG below. The dry bulb thermometer reads 54°F and the wet bulb thermometer reads 50°F. How would you encode the air temperature groups in the report?Not learned 216. Your vessel is participating in the Voluntary Observing Ship Program, you are preparing WS Form B-80 as seen in illustration D041NG below. The dry bulb thermometer reads 78°F and the wet bulb thermometer reads 75°F. How would you encode the air temperature groups in the report?Not learned 217. While your vessel is proceeding down a channel you notice a range of lights in line with your vessel's mast. If your vessel is on course 001° per gyrocompass and the charted value of the range of lights is 359°T, what is the gyro compass error?Not learned 218. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 352°T, and the variation is 4°W. If the heading of your vessel at the time of the sighting is 359° per standard magnetic compass, what is the correct deviation?Not learned 219. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 093°T, and the variation is 6°E. If the heading of your vessel at the time of the sighting is 097° per standard magnetic compass, what is the correct deviation?Not learned 220. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 178°T, and the variation is 9°W. If the heading of your vessel at the time of the sighting is 180° per standard magnetic compass, what is the deviation?Not learned 221. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 283°T, and the variation is 13°E. If the heading of your vessel at the time of the sighting is 278° per standard compass, what is the deviation?Not learned 222. If your vessel were proceeding upriver (ascending), how is the port side of the channel marked according to the U. S. Aids to Navigation System on the Western Rivers?Not learned 223. 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?Not learned 224. Your vessel is underway on a course of 323.5°T at a speed of 16 knots. At 1945 a light bears 350°T. At 2010 the light bears 008.5°T. What will be your distance off when abeam of the light?Not learned 225. In waters where the cardinal system is used where would you expect to find danger?Not learned 226. What weather change accompanies the passage of a cold front in the Northern Hemisphere?Not learned 227. Weather forecast messages are usually __________.Not learned 228. Weather patterns in the Gulf of Mexico area of the United States are _____.Not learned 229. Weather systems in the middle latitudes generally travel in which direction?Not learned 230. Which is a weekly publication advising mariners of important matters affecting navigational safety?Not learned 231. What does a white buoy with an orange circle marked on it indicate?Not learned 232. You wish to make good a course of 035°T while turning for an engine speed of 12 knots. The set is 340°T, and the drift is 2 knots. What course should you steer?Not learned 233. On a working copy of a weather map, a cold front is represented by what color line?Not learned 234. On 6 July 1983, at 1830 DST (ZD +4), what will be the predicted height of tide at Newburgh, NY?Not learned 235. While on a course of 152°T, a light bears 9° on the port bow at a distance of 11.6 miles. What course should you steer to pass 3 miles abeam of the light leaving it to port?Not learned 236. You desire to make good a true course of 067°. The variation is 11°W, magnetic compass deviation is 3°E, and gyrocompass error is 1°W. A northwesterly wind produces a 5° leeway. What is the course to steer per standard magnetic compass to make the true course good?Not learned 237. You desire to make good a true course of 157°. The variation is 15°E, magnetic compass deviation is 9°W, and gyrocompass error is 3°E. A southwesterly wind produces a 2° leeway. What is the course to steer per standard magnetic compass to make the true course good?Not learned 238. What will be the height of tide at Three Mile Harbor Entrance, Gardiners Bay, NY, at 0700 (ZD +5) on 14 Nov 1983?Not learned 239. Your ship is entering port from sea, and you sight a pair of range lights. When in line, they bear 315° per standard magnetic compass. The chart shows that the range bearing is 312°T, and that variation is 6°W. What is the deviation of your compass at the time of the sighting?Not learned 240. Two beacons form a range in the direction of 221.5°T. The range is seen in line from your vessel bearing 223° per gyrocompass. The variation in the area is 4°E. What is the error of your gyrocompass?Not learned 241. What will be the velocity of the tidal current in Bolivar Roads, Texas, at a point 0.5 mile north of Ft. Point, on 23 November 1983 at 0330 CST (ZD +6)?Not learned 242. Your vessel will be docking at Chester, PA, during the evening of 22 April 1983. The chart shows a depth of 20 feet (6.1 meters) at the pier. What will be the depth of water available at 2310 EST (ZD +5)?Not learned 243. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 311°T, and the variation is 8°E. If the heading of your vessel at the time of the sighting is 305° per standard magnetic compass, what is the correct deviation?Not learned 244. Your vessel is proceeding down a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 229°T, and variation is 6°W. If the heading of your vessel at the time of the sighting is 232° per standard magnetic compass, what is the deviation?Not learned 245. Your vessel is steering course 243°psc. Variation for the area is 5°E, and deviation is 2°W. The wind is from the south-southeast, producing a 2° leeway. What true course are you making good?Not learned 246. You want to transit Hell Gate, NY on 23 July 1983. What is the period of time around the AM (ZD +4) slack before ebb when the current will be less than 0.3 knot?Not learned 247. Which statement(s) is/are TRUE concerning radio equipment on towing vessels of 26 feet or more in length?Not learned 248. What are the quadrantal spheres used for?Not learned 249. When entering a channel from seaward, which is TRUE concerning the numbers on buoys?Not learned 250. On 4 October 2023, you will be docking at the Redwood Marine Terminal in Eureka, CA at the second high tide. The berth is located between NOAA reference tidal station #9418767 and subordinate station #9418801. What time (LST) will you be dockingNot learned 251. On 5 October 2023, you will be docking at the Redwood Marine Terminal in Eureka, CA at the second low tide. The berth is located between NOAA reference tidal station #9418767 and subordinate station #9418801. What time (LST) will you be dockingNot learned 252. On 9 November 2023 at 1130, you are inbound at Charleston Harbor Entrance Buoy “10” (ACT6611). Your vessel will transit 15nm and make good 10.0 knots to a berth where the nearest tidal current station is ACT6706. What will be the direction and velocity of the current as you approach the dockNot learned 253. Under the IALA cardinal system, a mark with a quick light showing 9 flashes every 15 seconds indicates that the safest water is on which side of the mark?Not learned 254. Which clouds is a thin, whitish, high cloud popularly known as "mares' tails"?Not learned 255. Which symbol represents a 10-fathom curve?Not learned 256. You are in a channel inbound from sea. A daymark used to mark a channel junction, when the preferred channel is to port will have the shape indicated by what letter in illustration D045NG below?Not learned 257. Which type of current will have the greatest effect on the course made good for your vessel?Not learned 258. You are running parallel to the coast and plotting running fixes using bearings of the same object. You are making more speed than assumed for the running fix. In relation to the position indicated by the fix you will be __________.Not learned 259. How are cumulonimbus clouds formed?Not learned 260. Which item in illustration D034NG below shows a fixed and flashing light?Not learned 261. What will a buoy marking a wreck show?Not learned 262. Geographic range is the maximum distance at which a light may be seen under which conditions?Not learned 263. The Light List shows that a navigational light has a nominal range of 15 miles and a height above water of 40 feet (12.2 meters). Your height of eye is 25 feet (7.6 meters) and the visibility is 5 miles. At about what range will you FIRST sight the light?Not learned 264. The Light List shows that a navigational light has a nominal range of 17 miles and a height above water of 28 feet (8.5 meters). Your height of eye is 32 feet (9.8 meters) and the visibility is 11.0 miles. At what approximate range will you first sight the light?Not learned