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Element 7
(Valid until Apr 6, 2022)
This is an old (expired) question pool. Click here to go to the current version
Subelement I
Inmarsat Equip. & Comms:
Section 63
Inmarsat General System Operations-2:
63I1
What is an MRN?
A.
Mobile Registration Number, provided by the FCC.
B.
Mobile Registration Number, provided by IMO.
Correct Answer
C.
Message
Reference
Number, provided by the LES.
D.
Vessel's call sign
63I1
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63I2
To keep the Inmarsat-B or F77 antenna pointing at the desired satellite, regardless of the ship's position and course, it has an input from the vessel's:
A.
Operational radar
B.
Automated Radar Plotting Aid (ARPA equipped radar)
C.
Steering control system
Correct Answer
D.
Gyrocompass
63I2
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63I3
The Inmarsat telephone and TELEX communications channel usage scheme is:
Correct Answer
A.
One ship per telephone channel and many ships per TELEX channel.
B.
Many ships on the same TELEX analog channel and many ships on the same TDM telephone channel.
C.
One ship per analog telephone channel and one ship per TELEX analog channel frequency.
D.
One ship per channel whether telephone or TELEX.
63I3
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63I4
What is an "Inmarsat Mobile Number"?
A.
This identifies the vessel's selective calling (SELCAL) number.
Correct Answer
B.
This is the Inmarsat number that is
assigned
to a
unit
for
incoming
or
outgoing
calls.
C.
This is the vessel's Inmarsat registration number for accounting authority purposes.
D.
This number is used for receiving news and other optional services in FleetNETTM.
63I4
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63I5
Which of the following statements concerning Inmarsat geostationary satellites is true?
A.
They are in a polar orbit, in order to provide true global coverage.
Correct Answer
B.
They provide coverage to vessels in nearly all of the world's
navigable
waters.
C.
They are in an equatorial orbit, in order to provide true global coverage.
D.
Vessels sailing in equatorial waters are able to use only one satellite, whereas other vessels are able to choose between at least two satellites.
63I5
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63I6
What is the primary purpose of an Inmarsat LES?
A.
The LES is required for ship-ship Inmarsat communications, ship-shore communications are handled by terrestrial Coast Radio Stations.
B.
The LES monitors all operations of the satellite and assigns channels and frequencies to the vessel.
Correct Answer
C.
The LES makes the satellite
connection
between the vessel and the
requested
destination
for all
types
of
services
.
D.
The LES is dedicated only to processing all vessel Distress priority calls.
63I6
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