GMDSS Quest

Answer the following questions. The correct answers located below the test.

1. Which sea areas are covered by the lnmarsat satellites?
1.    AOR, IOR and POR
2.    AOR, DOR, IOR and POR
3.    AOR-E, AOR-W, IOR and POR
2. What frequencies are used in Inmarsat?
1.   406MHz
2.   Rx/Tx 156,8 MHz
3.   Rx l,5GHz Tx 1,6GHz
3. What is 2-digit code of Medical Assistance in Inmarsat?
1.   32
2.   38
3.   42
4. Describe the routings of signal for EPIRB COSPAS-SARSAT
1.   EPIRB Satellite LUT MCC RCC SAR Service
2.   EPIRB Satellite LUT MCC SAR Service
3.   EPIRB Satellite RCC LUT MCC SAR Service
5. How many satellites are in use in the COSPAS-SARSAT system?
1.    7 satellites
2.    6 satellites
3.    4 – 2 reserve satellites
6. What is the international NAVTEX transmission frequency?
1.    512kHz
2.    518kHz
3.    490kHz
7. In what ITU reference book can you find the radio communication taxes?
1.    List of ship stations
2.    List of coast stations
3. Admiralty list of radio signals Volume V
8. What frequency used by EPIRB COSPAS-SARSAT provides the global
coverage?

1.    406MHz
2.    121,5 MHz and 406 MHz
3.    121,5MHz
9. When will you transmit DSC distress alert relay?
1.    When Master supposed that he needs additional assistance
2.    When ship in distress can not send alert himself and when Master supposed that he needs additional assistance
3.    When ship in distress can not send alert himself
10. Which channel is for DSC on the VHF band?
1.    Can be used all VHF channels
2.    Ch 13 
3.    Ch 70
11. How many network coordination stations is there in the Inmarsat system?
1.    2 NCS
2.    4 NCS
3.    3 NCS
12. What type of EGC Net has the highest priority in Inmarsat?
1.    System message
2.    SafetyNET
3.    FleetNET
13. How can you receive meteorological warning in the middle of Atlantic ocean?
1.    NBDP
2.    EGC
3.    EGC and NBDP
14. Is telephony communication possible when using Inmarsat-C standard?
1.    Yes
2.    No
3.    Yes, but only with special additional equipment
15. What kind of equipment can be used for automatic reception of MSI?
1.    2182 kHz receiver, EGC receiver, NBDP HF receiver
2.    NAVTEX receiver, EGC receiver, VHF receiver (Ch 16)
3.    EGC receiver, NAVTEX receiver, NBDP HF receiver
16. What kind of information does the EPIRB DSC VHF transmit?
1.    MMSI, ship’s position, nature of distress, EPIRB emission
2.    MMSI, ship’s position
3.    MMSI, EPIRB EMISSION
17. Give the definition of Sea Area A3
1.    Area covered by Inmarsat satellites except Area Al and A2
2.    Area covered by Inmarsat system
3.    Area covered by VHF, MF/HF Coast Radio Station with DSC equipment
18. How many SART must carry a vessel of 500 GT?
1.    Minimum 2
2.    Depends from the length of the vessel
3.    1 in each lifeboat and 1 on the navigational bridge, but not less than 4
19. What telex mole is used in NAVTEX system?
1.    FEC selective
2.    ARQ
3.    FEC collective
20. What frequencies are used by EPIRBs?
1.    406 MHz
2.    15,525 MHz
3.    Ch 70 VHF and 406 MHz
21. Which channels are the international distress and calling channel on VHF band?
1.    VHF Ch 16
2.    VHF Ch 70 and Ch 13
3.    VHF Ch 16 and Ch 70
22. Does the lnmarsat system offer global coverage?
1.    Yes
2.    From 70 N to 70 S
3.    Only 2 areas covered by CES
23. How do you switch off Inmarsat-C SES?
1.    Select LES and Logout
2.    Logout
3.    Logout and switch off SES
24. Give the meaning of the abbreviation MSI
1.    Mobile Service Identification
2.    Maritime Safety Information
3.    Maritime Solas Information
25. You received distress alert on DSC MF. On what frequency are supposed to listen for the complete distress message?
1.    2177 kHz
2.    2182 kHz
3. 2187,5 kHz
26. What the difference between Inmarsat-B and Inmarsat-C antenna?
1.    Inmarsat-B – undirected antenna, Inmarsat-C – directed antenna
2.    There is no principal difference between Inmarsat-B and Inmarsat-C
3.    Inmarsat-B – directed antenna, Inmarsat-C – omnidirected antenna
27. What kind of the information do you need to point the Inmarsat-B antenna to the satellite?
1.    Azimut, Elevation and gyro-auto
2.    Azimut, Elevation
3.    Azimut and gyro
28. What is the accuracy distance of SART detection from the vessel?
1.    6 miles
2.    12 miles
3.    5 miles
29. You receive a DSC Distress alert on VHF. Where are you supported to listen for the complete Distress message and where should you acknowledge?
1.    2182 kHz
2.    Ch 70
3.    Ch 16
30. Give the definition of Sea Area A1
1.    Area covered by MF Coast Radio Station with DSC equipment
2.    Area covered by VHF Coast Radio Station with DSC equipment
3. Area covered by any VHF Coast Radio Station
31. Can DSC be used in all sea areas in the GMDSS?
1.    Only in case of distress situation
2.    Yes
3.    No
32. What is the Urgency signal in radio telephony?
1.    Mayday
2.    PAN PAN
3.    Securite
33. What kind of equipment can be used for alerting when your ship station has bracken down?
1.    EPIRB and portable VHF stations
2.    EPIRB and SART
3.    EPIRB
34. Which frequency is used for ship-to-shore DSC routine call on MF band?
1.    2182 kHz
2.    2189,5 kHz
3.    2177 kHz
35. How many Inmarsat system satellites are in orbit?
1.    4
2.    4+4
3.    4+2
36. Which channel is used for DSC distress alerting on the VHF band?
1.    VHF Channel 70
2.    VHF Channel 13
3.    VHF Channel 16

Correct answers:

1-3,2-3,3-2,4-1,5-1,6-1,7-2,8-1,9-2,10-3,11-2,12-2,13-3,14-2,15-3,16-3,17-1,18-1,19-3,20-3,21-3,22-2,23-3,24-2,25-2,26-3,27-1,28-3,29-3,30-2,31-2,32-2,33-1,34-2,35-2,36-1

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