U.S.C.G. Merchant Marine Exam First Class Pilot Q371 Navigation … · 2019-09-11 · Q371...

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U.S.C.G. Merchant Marine Exam

First Class Pilot

Q371 Navigation General

(Sample Examination)

of 19 Q371 Navigation General

9/4/2019

Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3

Choose the best answer to the following Multiple Choice Questions.

1. Which characteristic will a lighted buoy that is to be left to starboard, when entering a U.S. port from seaward have?

• (A) A red light o (B) A light characteristic of Morse (A) o (C) A white light o (D) A green light

If choice A is selected set score to 1.

2. What describes a flood current?

o (A) Horizontal movement of the water away from the land following high tide o (B) Horizontal movement of the water away from the land following low tide o (C) Horizontal movement of the water toward the land after high tide • (D) Horizontal movement of the water toward the land after low tide

If choice D is selected set score to 1.

3. At what time after 1400 EST (ZD +5), on 4 January 1983, will the height of the tide at Port Wentworth, GA, be 3.0 feet?

o (A) 1612 o (B) 1630 • (C) 1653 o (D) 1718

If choice C is selected set score to 1.

4. What daymark has NO lateral significance?

o (A) Red triangle • (B) Green and white diamond o (C) Red triangle with a green horizontal stripe o (D) Green square

If choice B is selected set score to 1.

5. What are the colors of a mid-channel daymark?

• (A) Red and white o (B) Green and white o (C) Green and red o (D) Black and red



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Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3 6. Which statement about gyrocompass error is TRUE?

o (A) Any error shown by a gyro repeater will be the same as the error of the master compass. o (B) Any error will remain constant unless the compass is stopped and restarted. • (C) The amount of the error and the sign will generally be the same on all headings. o (D) The sign (E or W) of the error will change with different headings of the ship.


7. Which of the following statements is TRUE regarding automatic identification systems (AIS)?

o (A) AIS cannot be used to make passing arrangements because the system is not capable of this type of ship-to-ship communications.

o (B) AIS can be used to make passing arrangements via ship-to-ship text massaging relieving a vessel operator from making such arrangements via bridge-to-bridge radiotelephone or signaling intent to pass via whistle signals.

• (C) AIS can be used to make passing arrangements via ship-to-ship text messaging but a vessel operator is not relieved from the requirement to sound whistle signals or make arrangements via bridge-to-bridge radiotelephone.

o (D) AIS cannot be used to make passing arrangements because the ship-to-ship text messaging feature is for emergency use only.


8. In the U.S. Aids to Navigation System, lateral aids as seen entering from seaward will display lights with which characteristic?

o (A) Occulting o (B) Quick Flashing o (C) Flashing • (D) All of the above


9. The Light List indicates that a dayboard is a type MR. You should take which action?

o (A) Check to enter the correct channel at this junction daymark • (B) Leave it on either side o (C) Look for an all red daymark o (D) Look for the other dayboard forming the range



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Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3 10. In illustration D044NG below, what type of buoy is indicated by the letter A?

o (A) Pillar o (B) Spar • (C) Can o (D) Nun


11. What will be the velocity of the tidal current south of Doubling Point, ME, at 1357 EST (ZD +5) on 3 April 1983?

o (A) 0.9 knot o (B) 1.3 knots • (C) 2.0 knots o (D) 2.6 knots


12. The navigation regulations applicable to a U.S. inland waterway can be found in which publication?

o (A) Sailing Directions o (B) Notices to Mariners o (C) Channel Reports • (D) Coast Pilots


13. In modern fathometers, what produces the sonic or ultrasonic sound waves?

• (A) A transducer o (B) An amplifier o (C) A transceiver o (D) A generator


14. While navigating in fog off a coastline of steep cliffs, you hear the echo of the ship's fog horn 4 1/2 seconds after the signal was sounded. What is the distance to the shore?

o (A) 405 yards o (B) 628 yards o (C) 730 yards • (D) 825 yards



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Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3 15. You are steaming on a course of 198°T at 18.5 knots. At 0316 you observe a lighthouse bearing

235°T. At 0348 the lighthouse bears 259°T. What is your distance off at the second bearing?

o (A) 16.3 miles o (B) 15.3 miles • (C) 14.8 miles o (D) 15.8 miles


16. At 2221 your course is 222°pgc at a speed of 11.2 knots, when radar detects a buoy bearing 355° relative, at a range of 5.8 miles. The gyro error is 2°E. If you change course at 2226, what course should you steer to leave the buoy 1.0 mile abeam to port?

o (A) 206°pgc o (B) 231°pgc o (C) 210°pgc • (D) 228°pgc


17. The Light List shows a lighted aid to navigation on the right bank. This means that the light can be seen on the starboard side of a vessel under which circumstances?

• (A) The vessel is descending the river o (B) The vessel is ascending the river o (C) The vessel is crossing the river o (D) The vessel is proceeding from seaward


18. You are outbound in a buoyed channel on course 015°T. You sight a white light showing a Morse (A) characteristic bearing 359° relative. For safety, which action should you take?

o (A) Change course to 359°T to pass near to the buoy o (B) Check the chart to see where the marked danger lies in relation to the buoy • (C) Stay in the channel and leave the buoy to port o (D) Alter course to 000°T and leave the buoy close on the starboard side


19. ECDIS must give an alarm for which of the following cases?

o (A) If the ship, within a specified time set by the watch officer, is going to cross a safety contour o (B) If the ship, within a specified time set by the watch officer, is going to cross the boundary of a

prohibited area o (C) When the specified limit for deviation from the planned route is exceeded • (D) All of the above



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Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3 20. While steaming on course 280°T, you sight a buoy showing a very quick flashing (VQ) white light

well to port. Maintaining course, you sight another buoy showing a quick flashing (Q) white light. How should you pass?

o (A) South of the buoy • (B) North of the buoy o (C) West of the buoy o (D) East of the buoy


21. Which radar control reduces weak echoes out to a limited distance from the ship?

o (A) The brilliance control • (B) The sensitivity time control (sea-clutter control) o (C) The receiver gain control o (D) The fast time constant (differentiator)


22. The velocity of a rotary tidal current will be decreased when the Moon is at which phase?

• (A) Apogee o (B) New o (C) Perigee o (D) Full


23. You wish to make good a course of 230°T while turning for an engine speed of 12.5 knots. The set is 180°T, and the drift is 1.7 knots. What course should you steer?

o (A) 244°T • (B) 236°T o (C) 231°T o (D) 222°T


24. Some lights used as aids to marine navigation have a red sector to indicate a danger area. The limits of a colored sector of a light are listed in the Light List in which of the following manners?

• (A) True bearings as observed from the ship toward the light o (B) Geographical positions outlining the area of the sector o (C) True bearings as observed from the light toward the ship o (D) An outline of the area of the sector



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Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3 25. What is the proper name given to the movement of water away from the shore or downstream?

o (A) A reversing current • (B) An ebb current o (C) A flood current o (D) A slack current


26. What will be the time (ZD +5) of the second high tide at Weymouth Fore River Bridge, MA, on 12 November 1983?

o (A) 1639 o (B) 1643 o (C) 1647 • (D) 1650


27. In the U.S. Aids to Navigation System on the Western Rivers, a preferred channel buoy to be left to port while proceeding downstream will __________.

o (A) have a characteristic of composite group flashing if lighted o (B) have the upper band red o (C) show a red light if lighted • (D) All of the above


28. Which publication contains information on Naval Cooperation and Guidance for Shipping (NCAGS) in time of emergency or war?

• (A) Pub. 117, Radio Navigational Aids o (B) Appropriate volume of the Sailing Directions o (C) Light List o (D) Pub. 102, International Code of Signals


29. What is the gyrocompass error resulting from your vessel's movement in OTHER than an east-west direction?

o (A) Ballistic deflection o (B) Damping error • (C) Speed error o (D) Quadrantal error



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Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3 30. When using an echo sounder in deep water, it is NOT unusual to encounter which situation?

o (A) Receiving a first return near the surface during the day, and a strong return at about 200 fathoms (366 meters) at night

o (B) To have to recalibrate every couple of days due to inaccurate readings o (C) Receiving false echoes at a constant depth day and night • (D) Receiving a strong return at about 200 fathoms (366 meters) during the day, and one nearer

the surface at night


31. Which of the following are data layer categories to be displayed on ECDIS?

o (A) Hydrographic Office data o (B) ECDIS warnings and messages o (C) Notice to Mariners information • (D) All of the above


32. The luminous range of a light takes into account which factor?

o (A) The observer's height of eye o (B) The elevation of the light • (C) The existing visibility conditions o (D) The glare from background lighting


33. You are standing watch on entering port and the Master gives a rudder command which conflicts with a rudder command from the Pilot. You should ensure the helmsman which action?

• (A) Obeys the Master's commands o (B) Asks the Pilot if he has relinquished control o (C) Brings the rudder to a position midway between the two conflicting positions o (D) Obeys the Pilot's commands


34. What is an ebb current?

o (A) A current at maximum flow • (B) A current going out or downstream o (C) A current at minimum flow o (D) A current coming in or upstream



9/4/2019

Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3 35. Which publication should you check for complete information on Puget Sound weather conditions?

o (A) Sailing Directions o (B) Light List • (C) Coast Pilot o (D) Chart of the area


36. Which device maintains a continuous graphic record of the heading of the vessel?

• (A) The course recorder o (B) The fathometer o (C) The AIS system o (D) The auto pilot


37. Where are buoys and day beacons exhibiting a yellow triangle or square painted on them used?

o (A) On isolated stretches of the ICW to mark undredged areas • (B) Locations where the ICW and other waterways coincide o (C) In minor harbors where the controlling depth is 10 feet (3 meters) or less o (D) Only at particularly hazardous turns of the channel


38. What publication has information on the climate, distances, navigation regulations, outstanding landmarks, channels and anchorages of Long Island Sound?

o (A) Sailing Directions • (B) Coast Pilot o (C) Pilot Chart o (D) Light List


39. You are underway on course 128°T at a speed of 17.6 knots. You sight a daymark bearing 126°T at a radar range of 4.3 miles at 1649. If you change course at 1654, what is the course to steer to leave the daymark abeam to starboard at 0.5 mile?

o (A) 116°T o (B) 119°T • (C) 113°T o (D) 136°T



9/4/2019

Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3 40. When does a Doppler speed log indicate speed over ground?

o (A) At all times o (B) When the unit is in the volume reverberation mode o (C) The unit can only speed over ground when there is no current • (D) When senseing the bottom in depths of less than 600 feet


41. Which item in illustration D034NG below shows a fixed and flashing light?

• (A) A o (B) B o (C) C o (D) D


42. Your vessel is on a course of 103°T at 14 knots. At 1918 a light bears 129.5°T, and at 1937 the light bears 148°T. At what time and at what distance off will your vessel be when abeam of the light?

o (A) 1953, 3.8 miles o (B) 1947, 2.8 miles • (C) 1956, 4.4 miles o (D) 1950, 3.2 miles


43. General information about the location, characteristics, facilities, and services for U.S. and foreign ports may be obtained from which publication?

o (A) Coast Pilot o (B) Sailing Directions o (C) Distances Between Ports • (D) World Port Index


44. Which system provides the highest level of commercial navigational accuracy?

o (A) SPS, without selective availability o (B) NAVSAT, using the Doppler-shift o (C) PPS, without selective availability • (D) DGPS, within a coverage area



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Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3 45. 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?

o (A) One hour after • (B) 30 minutes before o (C) 30 minutes before flood, one hour after an ebb o (D) At the predicted time


46. How are aids to navigation marking the intracoastal waterway identified?

o (A) The light characteristic and color for lighted aids • (B) Yellow stripes, squares, or triangles marked on them o (C) The letters ICW after the aid's number or letter o (D) White retro-reflective material


47. You are on watch at sea at night and a fire breaks out in #3 hold. What should be done IMMEDIATELY?

o (A) Flood the space with C02 from the fixed fire fighting system. o (B) Proceed to the space and determine the extent of the fire. o (C) Cool the deck to contain the fire. • (D) Shut down the cargo hold ventilation.


48. 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?

o (A) 242°T o (B) 244°T o (C) 246°T • (D) 248°T


49. What will the velocity and direction of the tidal current be at Port Morris, NY, at 1135 DST (ZD +4) on 13 May 1983?

• (A) negligible at 220°T o (B) 3.1 knots at 045°T o (C) 1.2 knots at 220°T o (D) 1.0 knot at 045°T



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Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3 50. Which is TRUE concerning privately maintained aids to navigation included in the Light List?

o (A) They must be conspicuously marked by a signboard with the words "PRIVATE AID" • (B) They must conform to the standards of the U.S. Aids to Navigation System o (C) Not permitted in or along first-class waterways and may be authorized for second- and third-

class waterways o (D) They are painted white and must use a white light if lighted


51. Which statement about radio navigational warnings is TRUE?

o (A) NAVAREA warnings concern only coastal navigation and inland navigation in large bays or sounds such as Puget Sound.

• (B) The topics for warnings included in HYDROLANTS, HYDROPACS, and NAVAREA warnings are the same.

o (C) The United States is responsible for NAVAREA warnings in the North Atlantic north of 7°N, and west of 15°W.

o (D) Long range radio navigational warnings are usually broadcast by radiotelephone, radiotelegraph, and radio-teletypewriter.


52. Before a magnetic compass is adjusted certain correctors must be checked to ensure that they are free of permanent magnetism. Which are the correctors?

• (A) Flinders bar and quadrantal spheres o (B) dip needle and heeling magnet o (C) heeling magnet and Flinders bar o (D) fore-and-aft and athwartships magnets


53. What do red sectors of navigation lights warn mariners of?

o (A) Floating debris o (B) Heavily trafficked areas o (C) Recently sunken vessels • (D) Shoals or nearby land



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Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3 54. Which would you expect to see on a lighted preferred-channel buoy?

o (A) A Morse (A) white light • (B) A composite group-flashing light o (C) A fixed red light o (D) A yellow light


55. Which is the function of the "Port-Off-Stbd" selector switch on an autopilot steering stand?

o (A) It will change over the port to the starboard bow thruster o (B) To change over hand electric steering to non-follow up • (C) It will change over one steering system to the other o (D) To change from hand electric steering to automatic gyro


56. When a magnetic compass is not in use for a prolonged period of time it which action should be taken?

o (A) Be locked into a constant heading • (B) Be shielded from direct sunlight o (C) Have any air bubbles replaced with nitrogen o (D) Have the compensating magnets removed


57. Geographic range is the maximum distance at which a light may be seen under which conditions?

o (A) Perfect visibility conditions, limited only by interference from background lighting o (B) Existing visibility conditions, limited only by the curvature of the Earth o (C) Existing visibility conditions, limited only by the intensity of the light • (D) Perfect visibility conditions, limited only by the curvature of the Earth


58. You are underway on course 000°T at 9.5 knots. The current is 082°T at 1.1 knots. What is the speed being made good?

• (A) 9.8 knots o (B) 9.5 knots o (C) 10.1 knots o (D) 9.2 knots



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Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3 59. Your ARPA has automatic speed inputs from the log. Due to currents, the log is indicating a faster

speed than the speed over the ground. What should you expect under these circumstances?

o (A) The generated TCPA will be later than the actual TCPA. o (B) The range of initial target acquisition will be less than normal. o (C) The generated CPA will be less than the actual CPA. • (D) The targets true course vector will be in error.


60. What is the typical operating range of Automatic Identification Systems (AIS) at sea?

o (A) 3-4 nm o (B) 50-75 nm • (C) 20-25 nm o (D) 6-8 nm


61. The predicted time that the ebb 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 1630 and turn for 12 knots, at what point will you lose the flood current?

• (A) New Castle o (B) Reedy Island o (C) Mile 44 o (D) Ship John Shoal Lt.


62. Of the four light characteristics shown in illustration D019NG below which one does NOT represent a safe water mark of the IALA Buoyage System?

• (A) A o (B) B o (C) C o (D) D


63. What does a white buoy with an orange cross within a diamond marked on it indicate?

o (A) An anchorage area o (B) Operating restrictions are in effect • (C) Vessels are excluded from the area o (D) Danger



9/4/2019

Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3 64. A safe water daymark has what shape?

• (A) Octagonal o (B) Diamond o (C) Triangular o (D) Circular


65. Your vessel is steering course 299°psc, variation for the area is 7°W, and deviation is 4°W. The wind is from the southwest, producing a 3° leeway. What true course are you making good?

o (A) 299°T • (B) 291°T o (C) 313°T o (D) 296°T


66. Your vessel has a draft of 24 feet. On 7 April 1983, you wish to pass over a temporary obstruction near Lovell Island, MA, that has a charted depth of 22 feet. Allowing for a safety margin of 3.1 feet under your keel, what is the earliest time after 0100 EST (ZD +5) that this passage can be made?

o (A) 0248 o (B) 0304 • (C) 0342 o (D) 0356


67. Which is a weekly publication advising mariners of important matters affecting navigational safety?

• (A) Notice to Mariners o (B) Sailing Directions o (C) Light List o (D) Coast Pilot


68. What information is found in the chart title?

o (A) Date of the edition and, if applicable, the revision o (B) Information on which IALA buoyage system applies • (C) Information on the sounding datum o (D) Date of the first edition



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Q371 Navigation General U.S.C.G. Merchant Marine Exam First Class Pilot Illustrations: 3

69. 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 014°T, and the variation is 11°E. If theheading of your vessel at the time of the sighting is 009° per standard magnetic compass, what isthe correct deviation?

o (A) 5°Eo (B) 5°Wo (C) 6°E• (D) 6°W


70. The depth of the water is indicated on a chart as 32 meters. What is this equal to?

o (A) 11.50 fathomso (B) 12.62 fathoms• (C) 17.50 fathomso (D) 104.99 fathoms



9/4/2019

National Maritime Center

Serving Our Nation's Mariners

8/29/2018

D019NG

Adapted for testing purposes only

Further reproduction prohibited without permission of 19 Q371 Navigation General



8/30/2018

D034NG

Adapted for testing purposes only from Chart No. 1 United States of America Nautical Chart Symbols,

Abbreviations and Terms, 10 edition

Copyright © 1997 by the Department of Commerce and Department of Defense


U.S.C.G. Merchant Marine Exam First Class Pilot Q371 Navigation … · 2019-09-11 · Q371...

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