National Maritime Center Providing Credentials to Mariners Q412 Navigation General-Near Coastal (Sample Examination) Page 1 of 14
Choose the best answer to the following Multiple Choice Questions. 1. Which type of current which will have the greatest effect on the course made good for your vessel? o (A) A current flowing in the same direction as your course steered o (B) A current flowing in the opposite direction as your course steered (C) A current that flows at nearly right angles to your course steered o (D) A rotary current in which the direction of current flow constantly changes 2. In North America, which direction do the majority of the weather systems move? o (A) From east to west (B) From west to east o (C) From north to south o (D) From south to north 3. What information is NOT found in the chart title? o (A) Survey information o (B) Projection (C) Date of first edition o (D) Scale 4. Which navigational equipment is required to be tested and logged before a towing vessel embarks on a voyage of more than 24 hours? o (A) Radar(s) and VHF radio(s) o (B) Compass and/or swing meter o (C) GPS receiver(s) (D) All required navigational equipment, without exception 5. If the current and wind are in the same direction, what does the sea surface represent concern the true wind speed? o (A) The appearance of the sea surface does not change (B) It appears less than actually exists o (C) It appears at the correct speed o (D) It appears higher than actually exists Page 2 of 14
6. What natural feature is responsible for the rather even climate found on the Florida peninsula throughout the year? o (A) Strong masses of continental air o (B) The Bermuda high (C) The Gulf Stream o (D) The cool waters of the Sargasso sea 7. The ARPA may swap targets when automatically tracking if two targets are in which situation? o (A) The targets are tracked on reciprocal bearings o (B) The targets are tracked on the same bearing (C) The targets pass close together o (D) The targets are tracked at the same range 8. 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? o (A) 4h 55m o (B) 4h 36m (C) 3h 44m o (D) 3h 59m 9. In United States waters, a buoy having red and white vertical stripes if lighted, it will have which light characteristic? (A) Morse (A) o (B) Group occulting o (C) Interrupted quick flashing o (D) Quick flashing 10. 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? o (A) 10780, 2074/ (B) 10256, 2023/ o (C) 10256, 2074/ o (D) 00256, 0023/ Page 3 of 14
11. Which is a major advantage of the NAVTEX system when compared to other systems? (A) An automated direct printing system o (B) Broadcasts are at scheduled times o (C) The information can be received on an ordinary FM radio o (D) Low frequency band is used for long distance transmission 12. Distance along a track line is measured on a Mercator chart by using which method? o (A) latitude scale at the mid-latitude of the chart o (B) Use the latitude or longitude scale at the middle of the scale (C) Use the latitude scale near the middle of the track line o (D) Use the longitude scale near the middle of the track line 13. By convention, the north pole of a magnet is painted which color? o (A) White o (B) Blue o (C) Black (D) Red 14. If your vessel were proceeding up river (ascending), how is the port side of the channel marked according to the U. S. Aids to Navigation System on the Western Rivers? o (A) Red nun buoys (B) Green can buoys o (C) Green nun buoys o (D) Red can buoys 15. Which publication contains information on Naval Coperation 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 \ Page 4 of 14
16. Which item in illustration D034NG below shows a fixed and flashing light? (A) A o (B) B o (C) C o (D) D 17. Which publication should you check for complete information on Puget Sound weather conditions? o (A) Chart of the area (B) Coast Pilot o (C) Light List o (D) Sailing Directions 18. You are on course 209 T. In order to check the longitude of your vessel, you should observe a celestial body on which bearing? o (A) 209 (B) 270 o (C) 299 o (D) 000 19. In modern fathometers, what produces the sonic or ultrasonic sound waves? o (A) A transceiver o (B) An amplifier (C) A transducer o (D) A generator 20. The average height of the surface of the sea for all stages of the tide over a 19 year period is called. (A) mean sea level o (B) mean low water o (C) half-tide level o (D) mean high water Page 5 of 14
21. What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism? (A) Heeling magnets o (B) Athwartships magnets o (C) Quadrantal spheres o (D) Fore-and-aft magnets 22. Which current would you encounter on a direct passage from southern Africa to Argentina, South America? o (A) Guinea o (B) Agulhas (C) South Atlantic o (D) South Equatorial 23. Which weather change accompanies the passage of a cold front in the Northern Hemisphere? o (A) Wind shift from northeast, clockwise to southwest (B) A line of cumulonimbus clouds o (C) Steady dropping of barometric pressure o (D) Steady precipitation, gradually increasing in intensity 24. 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? o (A) They are white or red lights o (B) They can only be white lights o (C) They can only be green lights (D) They are white or green lights 25. What is the standard atmospheric pressure measured in inches of mercury? (A) 29.92 o (B) 500.0 o (C) 760.0 o (D) 1013.2 Page 6 of 14
26. Which statement(s) is/are TRUE concerning radio equipment on towing vessels of 26 feet or more in length? o (A) Each radio operator must hold an FCC-issued restricted operator's license, or higher. o (B) The vessel must have a ship-radio-station license issued by the FCC. o (C) Maintain a continuous listening watch on VHF channel 16 and the bridge-to-bridge channel. (D) All of the above. 27. What does a buoy with a composite group-flashing light indicate? (A) Bifurcation (channel junction) o (B) Dredging area o (C) Anchorage area o (D) Fish net area 28. General information about the location, characteristics, facilities, and services for U.S. and foreign ports may be obtained from which publication? (A) World Port Index o (B) Distances Between Ports o (C) Sailing Directions o (D) Coast Pilot 29. What is the basic principle of the magnetic compass? (A) Magnetic materials of the same polarity repel each other and those of opposite polarity attract. o (B) The compass needle(s) will, when properly compensated, lie parallel to the isogonic lines of the Earth. o (C) The Earth's magnetic lines of force are parallel to the surface of the Earth. o (D) Magnetic meridians connect points of equal magnetic variation. 30. When using a radar in an unstabilized mode, fixes are determined most easily from. (A) ranges o (B) center bearings o (C) objects that are close aboard o (D) tangent bearings Page 7 of 14
31. Which publication indicates the HYDROLANTS or HYDROPACS issued since the previous working day? o (A) Broadcast Notice to Mariners o (B) Summary of Corrections (C) Daily Memorandum o (D) Local Notice to Mariners 32. A green buoy has a yellow triangle on it. What type of buoy is this? o (A) It is a buoy that was set in error and will be replaced with a red nun buoy o (B) This is an information or regulatory buoy that has lateral significance (C) It is a dual purpose marking used where the ICW and other waterways coincide o (D) This buoy that is off-station and is marked to warn mariners of its wrong position 33. Swell is the rise and fall of the ocean's surface due to. (A) distant winds o (B) the pull of the moon o (C) local storms o (D) fetch 34. Which type of cloud formation should be of immediate concern to small craft operators? o (A) Altostratus (B) Cumulonimbus o (C) Nimbostratus o (D) Cirrus 35. You are underway on course 050 T and your maximum speed is 13 knots. The eye of a hurricane bears 120 T, 100 miles from your position. The hurricane is moving towards 265 T at 25 knots. What course should you steer at 13 knots to have the maximum CPA? o (A) 306 T o (B) 299 T o (C) 276 T (D) 324 T Page 8 of 14
36. Which term is given to a mature hurricane that has passed over colder water or land and loses its tropical characteristics? o (A) Typhoon o (B) A high pressure area o (C) An easterly wave (D) An extratropical low-pressure system 37. 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? (A) 262 o (B) 269 o (C) 276 o (D) 281 38. Which indication on the barometer is most meaningful in forecasting weather? (A) The direction and rate of change of barometric pressure o (B) The actual barometric pressure o (C) The words "Fair -- Change -- Rain" o (D) The relative humidity 39. To find the specific phase characteristic of a lighthouse on a sound of the United States you would use Which reference? o (A) U.S. Coast Pilot o (B) Nautical Chart Catalog o (C) American Practical Navigator (D) Light List 40. The survey information upon which a chart is based is found at which location? (A) Near the chart title o (B) At any convenient location o (C) At the lower left corner o (D) At the top center of the next line Page 9 of 14
41. How does the temperature change with the passage of an occluded front? o (A) The temperature rises rapidly (B) It depends on whether warm type or cold type occlusion o (C) The temperature drops rapidly o (D) It remains about the same 42. Which is the reference datum used in determining the heights of land features on most charts? (A) Mean high water o (B) Mean low water o (C) Half-tide level o (D) Mean sea level 43. How are cumulonimbus clouds formed? (A) By vertical air movements o (B) In heavy rainstorms o (C) By horizontal air movements o (D) By any movement of moist air 44. 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? o (A) The buoy can remain on either side close aboard o (B) The buoy should be left on the vessel's starboard side o (C) The buoy can be on either side well clear (D) The buoy should be left on the vessel's port side 45. While in port, which is the best way to follow the movement of a dangerous cyclonic storm? o (A) The National Weather Service Observing Handbook No.1, Marine Surface Observations o (B) The Coast Pilot or Sailing Directions (C) A current weather map o (D) The sky overhead Page 10 of 14
46. 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? o (A) One system having odd numbers while the other system has even numbers o (B) One system using horizontal bands while the other system uses vertical stripes (C) The difference in the periods of the light o (D) The differing light colors 47. What should you apply to a fathometer reading to determine the depth of water? (A) Add the draft of the vessel. o (B) Subtract the draft of the vessel. o (C) Add the sea water correction. o (D) Subtract the sea water correction. 48. Which information must automatic identification systems (AIS) automatically provide to appropriately equipped shore stations, vessels and aircraft? o (A) Vessel's type o (B) Navigational status o (C) Vessel's course (D) All of the above 49. Which item in illustration D034NG below shows an occulting light? o (A) A (B) B o (C) C o (D) D Page 11 of 14
50. The Light List shows that a navigational light has a nominal range of 18 miles and a height above water of 22 feet (6.7 meters). Your height of eye is 16 feet (4.9 meters) and the visibility is 2.0 miles. At which approximate range will you first sight the light? o (A) 2.0 miles o (B) 2.7 miles o (C) 4.2 miles (D) 5.8 miles Page 12 of 14
National Maritime Center Providing Credentials to Mariners D034NG 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 13 of 14
National Maritime Center Providing Credentials to Mariners D041NG 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 14 of 14