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1. C20 - When using the radar for navigating __________.

 

2. C20 - Which condition indicates that your radar needs maintenance?

 

3. C20 - Which data must ECDIS be able to record at oneminute intervals?

 

4. C20 - Which Electronic Plotting Aid (EPA) data should you use in order to determine if a close quarters situation will develop with a target vessel?

 

5. C20 - Which feature, when set to zero, might allow a GPS unit to have an accuracy equivalent to Precise Positioning Service receiver capability?

 

6. C20 - Which include in ECDIS units that incorporate Digital Chart Data Formats?

 

7. C20 - Which of the following data layer categories is NOT displayed on ECDIS?

 

8. C20 - With regard to GPS, how could a civilian receiver may be capable of achieving the same accuracy as a military receiver?

 

9. C20 - With respect to automatic identification systems (AIS) which of the following information is broadcast every one to ten seconds?

 

10. C20 - With respect to automatic identification systems (AIS), which information is expected to be broadcast every 1 to 10 seconds?

 

11. C20 - You are anchored in the Aleutian Island chain and receive word that a tsunami is expected to strike the islands in six hours. What is the safest action?

 

12. C20 - You are approaching a sea buoy which emits a racon signal. This signal is most frequently triggered by which type of radar?

 

13. C20 - You are approaching the pilot station with the wind fine on the starboard bow and making about 3 knots. You can help to calm the seas by taking what action just before the pilot boat comes along on the port side?

 

14. C20 - You are steaming along the coast of Ireland in the Irish Sea. You sight a lighted buoy with a white flashing light showing a group of two flashes. What does the buoy indicates?

 

15. C20 - You are steaming in a heavy gale and find it necessary to heave to. Under most circumstances, what is the best action to do?

 

16. C20 - Your radar is set on a true motion display. Which of the following will appear to move across the PPI scope ?

 

17. C20 - You are steaming in the open ocean of the North Pacific between the Aleutian Chain and Hawaii. A warning broadcast indicates that an earthquake has occurred in the Aleutians and has generated a tsunami that is predicted to hit Hawaii. What action is necessary for the ships safety?

 

18. C20 - Your radar displays your ship off center. As you proceed on your course, your ships marker moves on the PPI scope while echoes from land masses remain stationary. What is this display called?

 

19. C20 - Your Electronic Plotting Aid (EPA) has two guard zones. What is the purpose of the inner guard zone?

 

20. C20 - Your ARPA has been tracking a target and has generated the targets course and speed. The radar did not receive a target echo on its last two scans due to the weather. What should you expect under these circumstances?

 

21. C20 - Your Electronic Plotting Aid (EPA) 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?

 

22. C20 - Your ARPA has two guard zones. What is the purpose of the inner guard zone?

 

23. C20 - 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?

 

24. C20 - Your ARPA has been tracking a target and has generated the targets course and speed. The radar did not receive a target echo on its last two scans due to the weather. What should you expect under these circumstances?

 

25. C20 - Your radar indicates a target however, there is no visible object at the point indicated. A large mountain, approximately 50 miles away on the same bearing as the target, is breaking the horizon. You should suspect the radar target is caused by __________.

 

26. C20 - Besides treament for the injury, what other first aid includes in any major injury to a person?

 

27. C20 - After sending a message describing the symptoms of an ill crew member, you receive a message containing the code MRL. What does this means?

 

28. C20 - What is a treatment for traumatic shock?

 

29. C20 - What first, second, and third degree burns are classified according to?

 

30. C20 - What is an emergency lifesaving procedure that consists of recognizing and correcting failure of the respiratory or cardiovascular systems?

 

31. C20 - What would you do if a person gets something in his or her eye and you see that it is not embedded?

 

32. C20 - If there is a possibility of confusion, which signal should be used to send the group "True Bearing 045 Degrees"?

 

33. C20 - A crew member has suffered frostbite to the toes of both feet. What should you do?

 

34. C20 - What should you do when a crew member is unconscious and the face is flushed?

 

35. C20 - A crew member suddenly becomes blind in both eyes. Which code should your message contain?

 

36. C20 - A man has a burn on his arm. There is reddening of the skin, blistering, and swelling. What burn is this using standard medical terminology?

 

37. C20 - A man has suffered a burn on the arm. There is a reddening of the skin but no other apparent damage. What burn is this using standard MEDICAL terminology?

 

38. C20 - A man has suffered a burn on the arm. There is extensive damage to the skin with charring present. How is this injury classified using standard medical terminology?

 

39. C20 - A message giving warning of a hurricane should have which prefix when sent by radiotelephone?

 

40. C20 - A package contains nitric acid solution and is radioactive. The radiation level at the package surface is .36 millirems per hour. How should this package be labeled?

 

41. C20 - A patient in shock should NOT be placed in which position?

 

42. C20 - Why should a person being treated for shock should be wrapped in warm coverings?

 

43. C20 - A person has suffered a laceration of the arm. Severe bleeding has been controlled by using a sterile dressing and direct pressure. What should you do next?

 

44. C20 - What should be done to a person suffering from possible broken bones and internal injuries?

 

45. C20 - Where in the pulse to check where a rescuer can most easily determine whether or not an adult victim has a pulse?

 

46. C20 - A shipmate chokes suddenly, cannot speak, and starts to turn blue. What should you do?

 

47. C20 - What would precede to a signal indicating Greenwich mean time?

 

48. C20 - When and only when does a tourniquet should be used to control bleeding?

 

49. C20 - What immediately followed does a vessel in distress should send by radio telephone the two tone alarm signal?

 

50. C20 - A victim is coughing and wheezing from a partial obstruction of the airway. What an observer should do?

 

51. C20 - According to the Chemical Data Guide, what flash point (degrees F) of fuel oil number 6 has?

 

52. C20 - According to the Chemical Data Guide, what is NOT a recommended extinguishing agent for an ethyl chloride fire?

 

53. C20 - A navigator fixing a vessels position by radar __________.

 

54. C20 - A radar contact will remain stationary on a relative motion radar display only when it is __________.

 

55. C20 - A radar display which is oriented, so that north is always at the top of the screen, is called a(n) __________.

 

56. C20 - An automatic identification system (AIS) transponder transmits and receives information broadcasts on __________?

 

57. C20 - An Electronic Plotting Aid (EPA) will drop off a targets vector is more than __________ minutes elapse between each manual plot.

 

58. C20 - An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observers vessel. Which of the following is NOT a characteristic of indirect echoes?


59. C20 - As you pass under the Vicksburg Bridges, you estimate the current as 3.0 mph. What is the speed over the ground, if your vessel is making turns for 10.5 mph?

 

60. C20 - At 1032 on 24 June, you pass Carolina Landing Light (mile 508.8 AHP). What has been the average current since 2350, 23 June, if you have been making turns for 9.0 mph?

 

61. C20 - Chart information details to be used in ECDIS should be the latest edition of information originated by a governmentauthorized hydrographic office and conform to what standards?

 

62. C20 - Comparing manual and automatic acquisition in ARPA, which is most sensitive?

 

63. C20 - ECDIS allows the mariner to change the color palette that is used to display an ENC. Three different color tables have been designed to provide the maximum clarity and contrast between features on the display under three different lighting conditions on the bridge, namely Day, Dusk and Night.

 

64. C20 - Electronic Plotting Aid (EPA) has which built in functions?

 

65. C20 - How many targets can an Electronic Plotting Aid (EPA) track at the same time?

 

66. C20 - How would the two targets if the ARPA may swap targets when automatically tracking?

 

67. C20 - If there is any doubt as to the proper operation of a radar, which statement is TRUE?

 

68. C20 - In general, on how many radio channels will an automatic identification system (AIS) operate?

 

69. C20 - In order to insure that the racon signal is visible on your 3 cm radar, the __________.

 

70. C20 - Radar makes the most accurate determination of the __________.

 

71. C20 - Relative track information from the ARPA will determine if:

 

72. C20 - The 10cm radar as compared to a 3cm radar of similar specifications will __________.

 

73. C20 - The 3cm radar as compared to a 10cm radar with similar specifications will __________.

 

74. C20 - The ARPA may swap targets when automatically tracking if two targets __________.

 

75. C20 - The radar control that reduces weak echoes out to a limited distance from the ship is the __________.

 

76. C20 - The radar control that shortens all echoes on the display and reduces clutter caused by rain or snow is the __________.

 

77. C20 - The signal from a ramark will show on the PPI as a __________.

 

78. C20 - Two vessels are abreast of each other and passing port to port in a confined waterway. What should you expect as your bow approaches the screws of the other vessel?

 

79. C20 - Vessel required to have an Electronic Plotting Aid (EPA) must have a device to indicate the __________.

 

80. C20 - Vessels constructed on or after Sept.1,1984, a ship of ____ or more shall be fitted with ARPA.

 

81. C20 - What does a device indicates when a vessel is required to have an Electronic Plotting Aid (EPA)?

 

82. C20 - What is a Rasterscan chart data?

 

83. C20 - What is called as the database resulting from (1) the transformation of the electronic navigational chart (ENC) by ECDIS for appropriate use, (2) the updates to the ENC by appropriate means, and (3) the additional data added by the mariner?

 

84. C20 - What is the approximate wave length of an X Band Radar operating on a frequency of approximately 9500 MHz?

 

85. C20 - What is the IMO minimum range requirements for ARPA?

 

86. C20 - What is the level of database information which cannot be removed from the ECDIS display and consists of information which is required at all times in all geographic areas and under all circumstances?

 

87. C20 - What is TRUE of the history display of a targets past positions on an ARPA?

 

88. C20 - What is used to warn the observer if ang distinguishable target closes to a chosen range or transit a zone chosen by the observer?

 

89. C20 - What option does an Electronic Plotting Aid (EPA) not have?

 

90. C20 - What provides the highest level of commercial navigational accuracy?

 

91. C20 - What will cause the ARPA to emit a visual alarm, audible alarm, or both?

 

92. C20 - When navigating using GPS, what is an indicator of the geometry of the satellites that your receiver is locked onto?

 

93. C20 - When using a radar in an unstabilized mode, fixes are determined most easily from __________.

 

94. C20 - When using a recording depth finder in the open ocean, what phenomena is most likely to produce a continuous trace that may not be from the actual ocean bottom?

 

95. C20 - When using an ARPA, what should you consider in order to evaluate the information displayed?

 

96. C20 - When using an Electronic Plotting Aid (EPA), what should you consider in order to evaluate the information displayed?

 

97. C20 - When using the ARPA in heavy rain, which action should you take?

 

98. C20 - When using the Electronic Plotting Aid (EPA) in heavy rain, which action should you take?

 

99. C20 - Which ARPA data should you use in order to determine if a close quarters situation will develop with a target vessel?

 

100. C20 - Which will cause the ARPA to emit either, or both, a visual or audible alarm?

 

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