ROC General GMDSS Rules & Regulations Quiz
1. What is the purpose of the GMDSS system?
To ensure continuous communication between ships and shore stations.
To monitor the engine performance of vessels.
To regulate the radio frequencies used in maritime communication.
To provide medical assistance to ships in distress.
2. What does the term “GMDSS” stand for?
Global Maritime Distress and Safety System.
General Maritime Distress and Safety Services.
Global Monitoring of Distress Signals.
Global Maritime Detection and Safety System.
3. Which of the following is NOT a type of distress signal in GMDSS?
Mayday.
SOS.
Pan-pan.
Help-help.
4. Which of the following is used for distress communication on GMDSS?
MF/HF radio.
Satellite phone.
VHF radio.
All of the above.
5. What frequency does the GMDSS use for distress messages?
121.5 MHz.
156.8 MHz.
2182 kHz.
406 MHz.
6. Which of the following is a type of distress alert?
DSC alert.
VHF Channel 16.
EPIRB signal.
All of the above.
7. What does DSC stand for in the context of GMDSS?
Digital Selective Calling.
Digital Signal Communication.
Distress Signal Communication.
Distress Selective Calling.
8. What should a mariner do when they receive a distress message on VHF Channel 16?
Respond immediately with a Mayday message.
Switch to the appropriate working frequency and monitor.
Ignore the message if it’s not directed to your vessel.
Only report the distress to the nearest coast guard station.
9. Which of the following equipment is used for satellite-based distress communication?
EPIRB.
VHF radio.
SART.
MF/HF radio.
10. What does the “Mayday” distress signal mean?
The vessel is in grave and imminent danger.
The vessel needs assistance but is not in immediate danger.
The vessel is calling for medical assistance.
The vessel requires a pilot for navigation.
11. When should a distress alert be initiated?
When the vessel is in imminent danger of sinking.
When the vessel is experiencing engine failure.
When the vessel is drifting with no power.
When the vessel is lost and cannot navigate.
12. What does the term “Pan-pan” signify?
A distress signal.
A non-urgent safety message.
A medical emergency.
A warning for severe weather.
13. Which of the following is a correct statement about VHF radio usage?
VHF radio operates on frequencies above 30 MHz.
VHF radio is only used for distress signals.
VHF radio is used for both distress and non-distress communication.
VHF radio is used for long-range communication.
14. What is the purpose of an EPIRB?
To send distress signals via satellite.
To provide communication between ships.
To track vessels using GPS.
To transmit weather reports.
15. What action should be taken when the DSC distress alert is received?
Ignore it if it is not your vessel.
Acknowledge the distress alert immediately and assist.
Forward the message to the nearest coast guard.
Wait for instructions from a designated shore station.
16. What is the purpose of the NAVTEX service?
To broadcast distress messages.
To provide automated weather and navigational warnings.
To provide ship-to-ship communication.
To transmit distress alerts via satellite.
17. What frequency is used for DSC distress alerts?
2187.5 kHz.
156.8 MHz.
406 MHz.
121.5 MHz.
18. What does an EPIRB transmit to satellite systems?
A distress signal.
A test message.
A location signal.
A weather report.
19. When should an EPIRB be activated?
Only during a test.
When the vessel is at port.
When the vessel is in distress.
When the vessel is out of range of VHF.
20. What does an automatic position-reporting system (AIS) do?
Broadcasts the vessel’s position and other data.
Tracks the movements of vessels.
Only sends distress alerts.
It reports weather conditions.
21. What is the main purpose of the GMDSS distress relay system?
To relay distress alerts to the nearest coast guard station.
To allow communication between vessels in distress.
To pass distress information to other ships in the vicinity.
To ensure the distress signal reaches a satellite network.
22. What does the term “Sea Area A1” refer to in GMDSS?
Coastal waters within range of VHF radio.
Areas with satellite coverage.
Areas outside the range of any communication.
Oceanic areas covered by MF/HF radio.
23. What is the main function of a VHF radio in GMDSS?
To communicate with nearby vessels.
To send distress messages and relay signals.
To access weather reports from shore stations.
To provide navigation assistance.
24. What action should be taken if an EPIRB is activated?
Ignore it if you are not in distress.
The coast guard will track the EPIRB’s signal.
Notify the authorities and proceed with the operation.
Try to reset the EPIRB to avoid false alarms.
25. Which of the following is a correct statement regarding the DSC distress signal?
DSC distress signals can only be sent on specific frequencies.
DSC distress signals require confirmation from the coast guard.
DSC distress signals can be received globally via satellite.
DSC distress signals are broadcast over VHF radio.
26. What is the purpose of the GMDSS alerting system?
To notify shore stations of a vessel’s location.
To enable quick rescue for vessels in distress.
To transmit the vessel’s operational status.
To monitor the weather conditions.
27. When should a distress call be made using the MF/HF radio?
When the vessel is near shore.
Only during non-emergency situations.
When the vessel is beyond VHF communication range.
When a vessel is running low on fuel.
28. Which vessel can receive a DSC distress alert?
Any vessel within the distress alert’s range.
Only vessels with DSC equipment.
Only vessels on international waters.
Only vessels that are in distress.
29. What is the significance of the 121.5 MHz frequency in GMDSS?
It is used for satellite communication.
It is the primary frequency for distress signals.
It is used to locate vessels in distress.
It is used to send alerts to ships with similar equipment.
30. What equipment should be used to send a distress signal via satellite?
SART.
EPIRB.
VHF radio.
DSC.
31. How often should the GMDSS distress alert equipment be tested?
Monthly.
Annually.
Every 5 years.
Only before a voyage.
32. Which of the following is a requirement for a vessel to be compliant with GMDSS regulations?
The vessel must have a VHF radio and an EPIRB.
The vessel must be capable of transmitting distress messages.
The vessel must have satellite communication systems.
All of the above.