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GMDSS · 600 questions

Element 7 - USCG Exam Questions

GMDSS radio operating practices: digital selective calling, INMARSAT, NAVTEX, EPIRBs, search and rescue transponders, and distress, urgency, and safety procedures.

Every question below is a real U.S. Coast Guard exam question with four choices. Answer one and the correct choice is revealed instantly, with the USCG reference and illustration where the question uses one.

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All Element 7 questions

Questions 201–300 of 600 · page 3 of 6

  1. #661 Which FCC license meets the requirement to serve as a GMDSS operator?
  2. #662 Which of the following statements concerning GMDSS Radio Operator requirements is FALSE?
  3. #663 Which FCC license meets the requirements to perform or supervise the performance of at-sea adjustments, servicing, or maintenance which may affect the...
  4. #664 Which of the following are personnel, functional, or equipment FCC requirements of the GMDSS?
  5. #665 How many GMDSS radio maintainers must be carried aboard a compulsory vessel if the At-Sea maintenance method is used?
  6. #666 Which statement is FALSE regarding the GMDSS requirement for ship sources of energy?
  7. #667 How often should the charge condition of RSE GMDSS batteries be checked?
  8. #668 Which term describes the source of energy required to supply the GMDSS console with power if the ship’s source of main or emergency energy fails?
  9. #669 What characteristics describe the GMDSS Reserve Source of Energy (RSE)?
  10. #670 What is the requirement for emergency and reserve power in GMDSS radio installations?
  11. #671 Which statement concerning the testing of a compulsory radiotelephone station is FALSE?
  12. #672 At sea, all required equipment (other than Survival Craft Equipment) must be proven operational by:
  13. #673 The best way to test the MF-HF SITOR (NBDP) system is:
  14. #674 A vessel certified for service in Sea Area A3 is required to maintain a watch on:
  15. #675 What are the mandatory DSC watchkeeping bands/channels?
  16. #676 Proper watchkeeping includes the following:
  17. #677 Proper watchkeeping includes the following:
  18. #678 Which is true concerning a required watch on VHF Ch-16?
  19. #679 Which of the following statements meets requirements for 47 CFR 80 Subpart-W?
  20. #680 Which of the following statements is FALSE?
  21. #681 Which statement concerning radio log archival by the station licensee is FALSE?
  22. #682 Which of the following logkeeping statements is FALSE?
  23. #683 What would the number 1090 indicate?
  24. #684 Which one of the following is a ship station SELCAL?
  25. #685 What type of station would be assigned the call sign WAB2174?
  26. #686 What number will a ship station use to identify itself using SITOR (NBDP)?
  27. #687 Which of the following MMSI numbers indicates a U.S. flag ship station?
  28. #688 A DSC call is received from a station with a MMSI number of 003669991. What type of station made the call?
  29. #689 A MMSI 030346239 indicates what?
  30. #690 Which of the following statements concerning MMSI is FALSE?
  31. #691 Which of the following statements concerning MMSI is true?
  32. #692 Which of the following would indicate a standard AIS SART?
  33. #693 Which of the following would indicate a MOB AIS SART?
  34. #694 Which of the following would indicate an F77 terminal?
  35. #695 Which of the following would indicate an F77 terminal?
  36. #696 Which of the following would indicate an EPIRB AIS SART?
  37. #697 Which of the following would indicate an F77 terminal?
  38. #698 You receive a TELEX with the sender’s I.D. of 433863491. What type of terminal sent this message to your vessel?
  39. #699 You receive a TELEX with the sender’s I.D. of 436640927. What type of terminal sent this message to your vessel?
  40. #700 Which of the following would indicate an Inmarsat-C terminal?
  41. #701 Which of the following would indicate an Inmarsat-C terminal?
  42. #702 Which of the following would indicate an Inmarsat-C terminal?
  43. #703 Which of the following would indicate an Inmarsat-C terminal?
  44. #704 What sequence best describes an MF-HF DSC Distress Alert transmission?
  45. #705 MF-HF DSC alerts are transmitted using what emission type?
  46. #706 When sending a DSC call:
  47. #707 DSC transmissions are encoded:
  48. #708 Properly formatted MF-HF DSC transmissions can request which of the following emissions for follow on communications?
  49. #709 Which of the following statements concerning DSC equipment is true?
  50. #710 What is the action that a GMDSS Radio Operator should take when a DSC Distress alert is received requesting J3E?
  51. #711 In all cases, the transmit frequency of a MF/HF console DSC Distress alert:
  52. #712 DSC relays of Distress alerts to a coast station:
  53. #713 Which of the following is NOT a DSC watch frequency?
  54. #714 Which of the following watches must a compulsory Sea Area A1 vessel maintain?
  55. #715 How many HF DSC Distress watch channels must be guarded by a compulsory vessel underway.
  56. #716 What is usually the first step for a GMDSS Radio Operator to take when initiating a Distress priority message via Inmarsat?
  57. #717 Repetition of a DSC Distress alert is normally automatic if not acknowledged after a delay of:
  58. #718 For a MF/HF DSC Distress alert which statement is FALSE?
  59. #719 Which statement regarding an MF/HF DSC Distress alert is true:
  60. #720 If a VHF-DSC Distress alert is transmitted what channel is used for follow-on voice transmission?
  61. #721 If a MF-DSC Distress alert is transmitted what frequency is used for follow-on voice transmission?
  62. #722 If a HF-DSC Distress alert is transmitted what frequency is used for follow-on voice transmission?
  63. #723 What is the proper format for a Distress follow on voice transmission? (3x is three times),
  64. #724 What information should be included in a Distress follow on voice transmission after a DSC Alert?
  65. #725 What information is NOT vital in a Distress follow on voice transmission after a DSC Alert?
  66. #726 What is meant by the acronym “EOS" in a DSC message?
  67. #727 What is meant by the acronym “ECC" in a DSC message?
  68. #728 What action should be taken on receipt of a DSC Distress alert?
  69. #729 What action should be taken if a Distress alert is received on the 12 MHz DSC frequency?
  70. #730 Your ship received a Distress relay from a coast station on DSC frequency 2187.5 kHz. What action should the watch officer take?
  71. #731 Your ship received a Distress relay from a coast station on DSC VHF channel 70. What action should the watch officer take?
  72. #732 Under what condition would you not relay a DSC Distress alert?
  73. #733 The relay of DSC Distress alerts:
  74. #734 Transmission of a DSC Distress alert by a station on behalf of another vessel actually in Distress should NOT occur:
  75. #735 DSC Relays of DSC Distress alerts received from other ships should be done?
  76. #736 What action should you take after sending a false or mistaken Distress alert on VHF?
  77. #737 What action should you take after sending a false or mistaken Distress alert on MF?
  78. #738 What action should you take after sending a false or mistaken Distress alert on MF?
  79. #739 What action should you take after sending a false or mistaken Distress alert on 8 MHz?
  80. #740 What action should you take after sending a false or mistaken Distress alert on 12577.0 kHz?
  81. #741 What action should you take after sending a false or mistaken Distress alert on Inmarsat-C?
  82. #742 What is the fundamental purpose for imposing radio silence?
  83. #743 When can routine communications be resumed after radio silence has been imposed?
  84. #744 What is meant by the term "Seelonce Mayday”?
  85. #745 How is "radio silence" imposed?
  86. #746 How are normal working conditions restored on a SITOR (NBDP) frequency on which radio silence had been imposed?
  87. #747 How are normal working conditions restored after radio silence has been imposed?
  88. #748 Which of the following situations would normally use the Urgency priority?
  89. #749 Which of the following situations would NOT properly use the Urgency priority?
  90. #750 Which of the following situations would normally use the Urgency priority?
  91. #751 If the Watch Officer hears "PAN PAN" spoken 3 times it means:
  92. #752 When the GMDSS Radio Operator on watch hears "Securite" spoken three times, he can expect to receive the following information:
  93. #753 Which of the following situations would normally use the Safety priority?
  94. #754 Which of the following situations would normally use the Safety priority?
  95. #755 Which of the following situations would normally use the Safety priority?
  96. #756 Which of the following frequencies and modes is allocated for Distress alerting in GMDSS?
  97. #757 Which of the following frequencies is designated for On-scene Distress and Safety communications?
  98. #758 Which channel is designated for GMDSS Digital Selective Calling?
  99. #759 How many frequencies are available under GMDSS for DSC Distress-related calls?
  100. #760 Which of the following steps should be taken, if possible, when the vessel must be abandoned because of a Distress situation?

Element 7 questions: what to expect

Q How many Element 7 questions are in the GMDSS pool?

There are 600 Element 7 questions on this site, every one released by the U.S. Coast Guard or taken from the National Maritime Center's sample examinations, with its correct answer. The exam draws its Element 7 module from the same pool.

Q What score do I need to pass the Element 7 module?

Most USCG exam modules, including Element 7, require 70 percent to pass. Rules of the Road modules require 90 percent.

Q Are these the real USCG Element 7 exam questions?

Yes. They are the published U.S. Coast Guard questions, matched to the National Maritime Center's 2026 sample examinations. Answer any question to see the correct choice, the USCG reference and the illustration where the question uses one.

About the GMDSS question pool

These are the published GMDSS Element 7 questions covering radio operating practices: DSC, satellite communications, NAVTEX, EPIRBs, and distress procedures. The GMDSS Radio Operator exam draws from this pool.