Procedures for DSC Distress communication on HF using J3E or TLX FEC Mode A3, A4 areas.

- Ship in distress: Send DSC distress alert on HF (distress communication in J3E or TLX FEC mode). Ship receiving a DSC distress alert on HF from another ship shall not acknowledge the alert.

- Assistant vessel: Records the DSC distress alert on HF. Prepares for distress communication scanning distress phone or distress TLX HF frequencies.

CRS: Sends DSC distress acknowledgement to the vessel in the distress in the same band in which DSC distress alert was received. And sends DSC distress relay call if necessary.

- Ship in distress: Records DSC distress acknowledgement on HF. Definite the frequency and then distress traffic is carried out in J3E or TLX FEC mode HF frequencies in the same band. Distress information " MAYDAY".

Assistant vessel: Records DSC distress relay call on HF from CRS. Definite frequency, acknowledges the DSC distress relay call to CRS by J3E in the same band " Received MAY DAY RELAY".

If CRS doesn't send distress acknowledgement by DSC within 5 min.

- Distress vessel: Sends auto repeat of DSC distress alert on HF.

- Assistant vessel: Should transmit DSC distress relay alert and inform CRS or RCC via appropriate radio communications means.

SOME ABBREVIATIONS

GMDSS - Global Maritime Distress and Safety System

PART 2

1. How many pieces of SART must a ship of 400 tons gross tonnage be provided with?

- 1)1 2) 2. 3) 3. 4) 6. 5) 0.

2. How many pieces of SART must a ship of 5600 tons gross tonnage be provided with?

- 1) 0. 2) 1. 3)2 4) 3. 5) 6.

3. How many pieces of portable GMDSS VHF transceivers must a ship of 1700 tons gross tonnage be provided with?

- 1) 6. 2) 1. 3) 2. 4) 0. 5) 3.

4. How many pieces of portable GMDSS VHF transceivers must a ship of 450 tons gross tonnage be provided with?

- 1) 0. 2) 1. 3)2. 4) 3. 5) 6.

5. Which channel is used for ship-to-ship alerting on the VHF band in the GMDSS system?

1) 13. 2) 6. 3) 16. 4) 76. 5) 70.

6. Which frequency is used for ship-to-shore alerting on the MF band in the GMDSS system?

- 1) 2177 kHz. 2) 2189.5 kHz. 3) 2187.5 kHz. 4) 2182 kHz. 5) 2178.5 kHz.

7. Which radioequipment is not necessary for the ships sailing in the sea area A4?

- 1) NAVTEX receiver. 2) 406MHz EPIRB float free. 3) VHF DSC watch receiver. Telex (NBDP). 5) Inmarsat SES.

8. Which radioequipment is not necessary for ships sailing in the sea area A2?

- 1) MF watch receiver dedicated to 2187, 5 kHz. 2) Telex (NBDP). 3) VHF DSC watch receiver. 4) Enhanced Group Call equipment. 5) Satellite EPIRB.

9. Which VHF channel dose the VHF emergency beacon use?

- 1) 13. 2) 70. 3) 76. 4) 6. 5) 16.

10. What types of EPIRB's can be used in sea area A 4?

- 1) Cospas-Sarsat or Inmarsat-E or VHF. 2) Inmarsat-E only. 3) Inmarsat-E or Cospas-Sarsat. 4) Cospas-Sarsat only. 5) Cospas-Sarsat or VHF.

11. Which frequency dose Inmarsat-E EPIRB use for transmission of distress signals?

- 1) 406 MHz. 2) 1, 6 GHz. 3) 156, 5 MHz. 4) 121, 5 MHz. 5) 1, 5 GHz.

12. Urgency signal consist of the word?

- 1) SECURJTE. 2) MAYDAY. 3) URGENCY. 4) PRU-DONCE. 5) PAN PAN.

13. Which kind of station can have MMSI number 002184000?

- 1) a concrete ship station. 2) group of ships. 3) a concrete coast station. 4) group of coast station. 5) no one.

14. Which kind of station can have MMSI number 027954000?

- 1) a concrete ship station. 2) group of ship. 3) a concrete coast station. 4) group of coast station. 5) no one.

15. Which frequency is assigned for transmitting DSC distress alert on the MF band?

- 1) 2177 kHz. 2) 2187, 5 kHz. 3) 2189, 5 kHz. 4) 490 kHz. 5) 2182 kHz.

16. Which frequency can be used for MF DSC ship-to-ship calling for general communication?

- 1) 2187, 5 kHz. 2) 2189 kHz. 3) 2182 kHz. 4) 2177 kHz. 5) 2174, 5 kHz.

17. What modes of communication can be used in Inmarsat-C system?

- 1) Telephony. 2) Telex. 3) Telephony/Telex/Facsimile. 4) Telephony/Telex/Data. 5) Data/Facsimile.

18. Which Inmarsat Mobile Number belongs to a Inmarsat-C Ship Earth Station?

- 1) 673529300. 2) 800476210. 3) 217459300. 4) 532743210. 5) 459291300.

19. Which Inmarsat Mobile Number belongs to a Inmarsat-A Ship Earth Station?

- 1) 647523301. 2) 1405201. 3) 427355210. 3) 002737300.5) 16135010.

20. Which address must you type to send message from your Inmarsat- C terminal to another Inmarsat-C ship station?

- 1) Telex ocean region access code+ IMN.

- 2) IMN + telephone ocean region access code.

- 3) IMN + telex country code + telex ocean region access code.

- 4) IMN + telex ocean region access code.

- 5) Telex country code + telex ocean region access code + IMN.

21. How many NAVAREA's are there in the world?

- 1) 4. 2) 12. 3) 14. 4) 16. 5) 24.

22. Which equation shows right radio between frequency (f) and the wavelength (Lambada) of radio waves?

- 1) f= C/Lambada 2) f= CxLambada. 3) f= Lambada/C. 4) f=Cx6, 28xLambada. 5) f=C/6, 28.

23. Are VHF radio waves reflected by the ionosfere?

- 1) By D-layer and E-layer. 2) By all layers. 3) Not reflecte. 4) Only by

F-layer. 5) Only by D-layer.

24. What is the approximate range of MF radio waves during the day time?

- 1) 30 nm. 2) 150 nm. 3) 600 nm. 4) 1200 nm. 5) 2500 nm.

25. What is the wavelength, if the frequency is 6 MHz?

- 1) 180 m. 2) 18 m. 3) 500 m. 4) 50 m. 5) 0, 2 m.

26. What is the frequency, if the wavelength is 7, 5 meters?

- 1) 40 MHz. 2) 4000 MHz. 3) 22, 5 MHz. 4) 2500 MHz. 5) 25 MHz.

27. The abbreviation of telephony mode of radiation using phase modulation?

- 1) F3E. 2) R3E. 3) G3E. 4) FIB. 5) P3E.

28. The abbreviation of telephony mode of radiation using amplitude modulation (single sideband, suppressed carrier)?

- 1) R3E. 2) J3E. 3) H3E. 4) J2B. 5) A3E.

29. The abbreviation of telephony mode of radiation using amplitude modulation (single sideband, full carrier)?

- 1) R3E. 2) J3E. 3) J2B. 4) A3E. 5) H3E.

30. The abbreviation of telegraphy mode of radiation frequency modulation (narrow band direct printing)?

- 1) F3E. 2) F1C. 3) F1B. 4) G3E. 5) G1D.

31. Which currencies must be used in international charging for radiocommunication?

- 1) USD. 2) SDR. 3) Colg France and USD. 4) SDR and Gold France. 5) Gold France.

32. Should lead batteries and Ni-Cd batteries be located in the same battery room?

- 1) Yes. 2) No. 3) Yes, in case the battery room large enough. 4) Yes, in case the battery room has compulsory ventilation. 5) Yes, in case of maintenance lead batteries.

33. What the minimum operation time of reserve source of energy on ships without an emergency energy source?

- 1) 1 hour. 2) 6 hours. 3) 12 hours. 4) 24 hours. 5) 48 hours.

34. What is minimum operation time of reserve source of energy on ships with an emergency energy source?

- 1) 1 hour. 2) 6 hours. 3) 12 hours. 4) 24 hours. 5) 48 hours.

35. What is total voltage and capacity of two 12 V batteries coupled in series, if each battery has capacity of 100 Ah?

- 1) 12V100 Ah. 2) 12V200 Ah. 3) 24V100 Ah. 4) 24V200 Ah. 5) 24V 50 Ah.