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Subel. G
6 questions
Subelement G

Inspections, Installations and Instruments:

Section 47

Equipment Installation:

What is the best method for grounding an Inmarsat-C terminal?

  • Number 10 copper wire between terminal and the ship/s steel hull.
  • A good ground at the antenna is sufficient.
  • Correct Answer
    Copper strap brazed to the steel terminal and ship's steel hull.
  • An aluminum strap bolted to both the steel terminal and ship's steel hull.
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What is the most important consideration for installing a Full-Duplex VHF radiotelephone.

  • Maximum separation between the transmitter and receiver.
  • Minimum separation between transmitting antennas.
  • Maximum separation between transmitting antennas.
  • Correct Answer
    Maximum separation between transmitting antenna and the duplex receiver antenna.
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What is the most important factor when locating depth finder transducers?

  • Correct Answer
    In an area not subject to cavitation.
  • They must be equidistant from the bow and the stern.
  • They must be on the centerline of the ship.
  • They should be as close to the bow as possible.
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Bridge equipment separation recommendations generally refer to what instrument?

  • GPS
  • Correct Answer
    Magnetic compass
  • ECDIS
  • Auto Pilot
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When installing an Inmarsat-C antenna what should be the minimum distance to other Inmarsat antennas?

  • 4 meters
  • Correct Answer
    8 meters
  • 10 meters
  • 12 meters
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What action must be taken after an Inmarsat-C system is fully installed?

  • Advise the nearest RCC that your terminal is active.
  • Send a distress alert and then cancel it.
  • Correct Answer
    Your Inmarsat Mobile Number must be entered in the terminal.
  • Send a brief test message to your own terminal.
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