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Subel. D
6 questions
Subelement D
Other GMDSS Equipment:
Section 33
EPIRB:
Which is not a function of a satellite under COSPAS-SARSAT using satellite EPIRBs?
  • Correct Answer
    After the EPIRB's position is calculated using the Doppler shift COSPAS-SARSAT satellites provide follow-on SAR communications.
  • Relayed satellite message includes the EPIRB ID number which provides a reference for retrieval of vessel information from the shore database.
  • Doppler shift of EPIRB signal is measured and the EPIRB's position is calculated.
  • Information received from EPIRBs is time-tagged and transmitted to any Local User Terminal in the satellite's view.
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What is the purpose of the magnet in the EPIRB mounting bracket?
  • To secure the EPIRB in the mounting bracket.
  • Correct Answer
    Prevent accidental operation of the EPIRB while secured in the mounting bracket.
  • To activate the automatic release mechanism.
  • When the EPIRB is released it causes a signal to be sent to the bridge.
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How often must the EPIRB battery be replaced?
  • Every 2 years.
  • Every 3 years or after use.
  • Correct Answer
    Every 5 years or after use.
  • Every 8 years.
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What feature is not a component of a 406 MHz satellite EPIRB?
  • 121.5 MHz emergency homing transmitter.
  • Emergency transmission on 406.025 MHz.
  • Float-free release bracket.
  • Correct Answer
    Aural locator signal.
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How often must the automatic release mechanism be replaced.
  • Correct Answer
    Every 2 years
  • Every 3 years
  • Every 5 years
  • Every 8 years
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Which of the following is normally part of 406 MHz satellite EPIRBs?
  • A strobe light, automatic float-free bracket, 1-watt 406-MHz alert beacon.
  • Correct Answer
    A 5-watt 406-MHz alert beacon, Automatic Hydrostatic Release (ARM), strobe light.
  • Automatic float-free bracket, 5-watt 121.5 MHz homing beacon, strobe light.
  • Automatic Hydrostatic Release (ARM), 1-watt 121.5 MHz alerting beacon, strobe light.
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