Assessment Test

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1. Under the IALA-B Buoyage System, when entering from seaward, a buoy that should be left to port will be __________.

 
 
 
 

2. Under the U.S. Aids to Navigation System on the Western Rivers, a daymark on the right descending bank will __________.

 
 
 
 

3. Under the U.S. Aids to Navigation System on the Western Rivers, a preferred-channel buoy is __________.

 
 
 
 

4. Under the U.S. Aids to Navigation System on the Western Rivers, passing daymarks on the left descending bank are __________.

 
 
 
 

5. Under the U.S. Aids to Navigation System on the Western Rivers, passing daymarks on the right descending bank are __________.

 
 
 
 

6. Under the U.S. Aids to Navigation System on the Western Rivers, the buoys marking the starboard side of the channel when going upstream will be __________.

 
 
 
 

7. Under the U.S. Aids to Navigation System used on the Western Rivers, aids to navigation lights on the right descending bank show __________.

 
 
 
 

8. Under the U.S. Aids to Navigation System, a lighted buoy with a spherical topmark marks __________.

 
 
 
 

9. Under the U.S. Aids to Navigation System, a special mark possesses which of the following characteristics?

 
 
 
 

10. Under the U.S. Aids to Navigation System, a yellow buoy is a __________.

 
 
 
 

11. Under the Uniform State Waterway Marking System a mooring buoy is painted __________.

 
 
 
 

12. 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, are called __________.

 
 
 
 

13. Universal time (UTI) is another name for __________.

 
 
 
 

14. Unlighted, red and green, horizontally- banded buoys with the topmost band red __________.

 
 
 
 

15. Upper limb observations of the Moon are used more frequently than those of the Sun because of the location of the Moon in the sky and the __________.

 
 
 
 

16. Variation in a compass is caused by __________.

 
 
 
 

17. Variation is a compass error that you __________.

 
 
 
 

18. Variation is not constant; it is different with every change in __________.

 
 
 
 

19. Variation is the angular measurement between __________.

 
 
 
 

20. Vessels regularly navigating Ohio and Mississippi rivers above Cairo, Illinois, and their tributaries, shall at all times have on board a copy of __________.

 
 
 
 

21. Vessels required to have an Automatic Radar Plotting Aid must have a device to indicate the __________.

 
 
 
 

22. Vessels should maintain a sharp lookout, especially during December through March, when navigating the right whale's only known calving grounds which lie off the coasts of __________.

 
 
 
 

23. Warm air masses will generally have __________.

 
 
 
 

24. Weather conditions in the middle latitudes generally move __________.

 
 
 
 

25. Weather forecast messages are usually __________.

 
 
 
 

26. Weather information is available from __________.

 
 
 
 

27. Weather information provided by the National Weather Service (NWS) advisories should be used along with __________.

 
 
 
 

28. Weather observations provided by each weather station include all of the following except __________.

 
 
 
 

29. Weather patterns in the Gulf Coast area of the United States are __________.

 
 
 
 

30. Weather systems in the middle latitudes generally travel from __________.

 
 
 
 

31. What agency of the U.S. Government issues charts of U.S. waters and Coast Pilots?

 
 
 
 

32. What are the colors of a mid-channel day mark?

 
 
 
 

33. What are the doldrums characterized by?

 
 
 
 

34. What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism?

 
 
 
 

35. What area of the earth cannot be shown on a standard Mercator chart?

 
 
 
 

36. What benefit is a weather bulletin to a mariner?

 
 
 
 

37. What causes the error of collimation with regards to the four adjustments to a sextant?

 
 
 
 

38. What celestial body may sometimes be observed in daylight?

 
 
 
 

39. What classification of tropical cyclone would have closed isobars, counter clockwise rotary circulation, and sustained winds between 34 and 63 knots?

 
 
 
 

40. What condition exists at apogee?

 
 
 
 

41. What current flows southward along the west coast of the United States and causes extensive fog in that area?

 
 
 
 

42. What daymark has NO lateral significance?

 
 
 
 

43. What daymark shape is used in the lateral system?

 
 
 
 

44. What defines a great circle?

 
 
 
 

45. What describes a flood current?

 
 
 
 

46. What describes an accurate position that is NOT based on any prior position?

 
 
 
 

47. What describes an ebb current?

 
 
 
 

48. What do the numbers on isobars indicate?

 
 
 
 

49. What does an automatic identification system (AIS) transponder use to transmit and receive information broadcasts?

 
 
 
 

50. What does not contribute to the commercial GPS receiver position error?

 
 
 
 

51. What enables you to estimate the bearing of a storm's center?

 
 
 
 

52. What feature(s) of a daymark is (are) used to identify the beacon upon which it is mounted?

 
 
 
 

53. What generally occurs when the land is cooler than the nearby water?

 
 
 
 

54. What great circle is always needed to form the astronomical triangle? What

 
 
 
 

55. happens because of augmentation?

 
 
 
 

56. What indicates a buoy that should be left to port when entering from seaward? (U.S. Aids to Navigation System)

 
 
 
 

57. What indicates a dual purpose buoy?

 
 
 
 

58. What indicates that a tropical cyclone may be within 500 to 1,000 miles of your position?

 
 
 
 

59. What information is found in the chart title?

 
 
 
 

60. What information is NOT found in the chart title?

 
 
 
 

61. What instrument measures wind velocity?

 
 
 
 

62. What is a "Special Warning"?

 
 
 
 

63. What is a characteristic of a rhumb line?

 
 
 
 

64. What is a characteristic of cardinal marks?

 
 
 
 

65. What is a common unit of measure for atmospheric pressure?

 
 
 
 

66. What is a lighted safe water mark fitted with to aid in its identification?

 
 
 
 

67. What is a nonadjustable error of the sextant?

 
 
 
 

68. What is an advantage of the magnetic compass aboard vessels?

 
 
 
 

69. What is an ebb current?

 
 
 
 

70. What is apparent time is based on?

 
 
 
 

71. What is characteristic of an isophase light?

 
 
 
 

72. What is characteristic of an occulting light?

 
 
 
 

73. What is most likely to happen when you push a multiple tow into a countercurrent?

 
 
 
 

74. What is NOT a characteristic of cardinal marks?

 
 
 
 

75. Tropical cyclones normally form within which of the following belts of latitude?

 
 
 
 

76. Tropical storms and hurricanes are most likely to form in the Southern hemisphere during __________.

 
 
 
 

77. True heading differs from magnetic heading by __________.

 
 
 
 

78. Two navigational hazards are located near to each other, but each is marked by an individual cardinal buoyage system. The buoys of one cardinal system may be identified from the other system by __________.

 
 
 
 

79. Two well-developed high pressure areas may be separated by a __________.

 
 
 
 

80. Two well-developed low pressure areas may be separated by a __________.

 
 
 
 

81. Under ideal viewing conditions, the dimmest star that can be seen with the unaided eye is of what magnitude?

 
 
 
 

82. Under the IALA - A Buoyage System, a buoy used as a port hand mark would not show which light characteristic?

 
 
 
 

83. Under the IALA Buoyage Systems, a cardinal mark may NOT be used to __________.

 
 
 
 

84. Under the IALA Buoyage Systems, a safe water mark may NOT __________.

 
 
 
 

85. Under the IALA Buoyage Systems, a spherical buoy will mark the __________.

 
 
 
 

86. Under the IALA Buoyage Systems, a spherical buoy will mark the

 
 
 
 

87. Under the IALA Buoyage Systems, safe water marks may show a

 
 
 
 

88. Under the IALA Buoyage Systems, the topmark of a red and white vertically-striped buoy shall be __________.

 
 
 
 

89. Under the IALA cardinal system, a mark with a quick light showing 9 flashes every 15 seconds indicates that the safest water is on the

 
 
 
 

90. Under the IALA cardinal system, a mark with a quick white light showing 6 flashes followed by one long flash indicates that the safest water is on the __________.

 
 
 
 

91. 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 on the __________.

 
 
 
 

92. Under the IALA-A and B Buoyage Systems, a buoy with alternating red and white vertical stripes indicates __________.

 
 
 
 

93. Under the IALA-A Buoyage System, a buoy indicating that the preferred channel is to port when entering from seaward, can have a __________.

 
 
 
 

94. Under the IALA-A Buoyage System, a buoy indicating the preferred channel is to port would have __________.

 
 
 
 

95. Under the IALA-A Buoyage system, a buoy marking the port hand of the channel when approaching from seaward may NOT have a __________.

 
 
 
 

96. Under the IALA-A Buoyage system, a buoy marking the starboard side of the channel when approaching from seaward may have a __________.

 
 
 
 

97. Under the IALA-A Buoyage System, a green spar buoy with a triangular topmark would indicate that the buoy __________.

 
 
 
 

98. Under the IALA-A Buoyage System, when entering from seaward, a buoy indicating the preferred channel is to starboard may have a __________.

 
 
 
 

99. Under the IALA-B Buoyage System, a buoy displaying a red light will __________.

 
 
 
 

100. Under the IALA-B Buoyage System, a conical buoy will be __________.

 
 
 
 


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