C1 new (101-201)
GMDSS Proficiency Quiz
Test your knowledge on Global Maritime Distress and Safety System (GMDSS) protocols with our comprehensive quiz. Designed for maritime professionals and enthusiasts alike, this quiz covers a range of topics that are crucial for safety at sea.
With 30 carefully crafted multiple-choice questions, you'll have the opportunity to:
- Enhance your understanding of maritime safety communications
- Prepare for certification exams
- Challenge your existing knowledge
What is the purpose of the squelch control on a GMDSS transceiver ?
To set the transmitter power level
To mute receiver output noise when no signal is being receive
To adjust the automatic gain control when no signal is being received
To set the highest level of volume desired
When measured directly above given point, solar radiation in the ionosphere is minimum during what time ?
At sunlight
At sunset
At noon
At night
From what height can as AIS-SART be capable of withstanding without damage when dropped into the water ?
30 meters
20 meters
25 meters
15 meters
Which from the following statement regarding 406 MHz EPIRB transmission is CORRECT ?
Transmits a unique hexadecimal identification number
Allow immediate voice communications with the RCC
Coding permits the SAR authorities to know if manually or automatically activated
GMDSS Radio Operator program an I.D. Into the SART immediately prior to activation
How many HF DSC Distress watch channels must be guarded by a compulsory vessel underway ?
Three (3)
Six (6)
Two (2)
Four (4)
What does a NAVTEX receiver do when it runs out paper ?
The unit cannot operate, and all subsequent MSI broadcast are missed until the paper is replaced
It will give off either an audible and or visual alarm
The system will automatically change from receiving MSI by NAVTEX to receiving it by Safety NETTM so that no message will be lost
Listen to appropriate VHF weather channel for NAVTEX messages that was not printed
What course of action you should initiate after receiving an All stations DSC Safety call on 2187.5 KHz ?
Acknowledge by DSC on 2187.5 KHz
Acknowledge by RT on 2182 KHz
Listen for the call on 2048 KHz
Listen for the call on 2182 KHz
What is a safety transmission ?
Radiotelephony warnings preceded by the words "PAN"
A communication transmission which indicates that a station is preparing to transmit an important navigation or weather warning
Health and welfare traffic concerning the protection of human life
A radiotelephony alert preceded by the letters "XXX" sent three times
Where can be VTS be only mandatory ?
EZZ
Freedom of the seas
Territorial seas
Contiguous zone
How long should SART battery capacity be sufficient ?
Three days
Eight hours
Four days
Forty eight hours
What does MMSI stands for ?
Maritime Mobile Service Identities
Maritime Medium Service Integrity
Maritime Mobile Search Identity
Mobile Maritime Service Identities
What are the highest priority communications from ships at sea ?
All critical message traffic authorized by the ship's master
Navigation and meteorological warnings
Authorized government communications for which priority right has been claimed
Distress calls and communications preceded by the international urgency and safety signals
What is the fundamental concept of the GMDSS ?
It is intended to provide more effective but lower cost commercial communications
It is intended to automate and improve emergency communications in the maritime industry
It is intended to automate and improve existing digital selective calling procedures and techniques
It is intended to provide compulsory vessel with a collision avoidance system when they are operating in waters that are also occupied by non-compulsory vessels
GMDSS is required for which of the following ?
Vessels operating outside of the range of VHF coastal radio stations
Coastal vessels of less than 300 gross tonnage
SOLAS convention ship of 300 gross tonnage or more
All vessels capable of international voyages
Describe the main idea of transmissions on 406 MHz ?
EPIRB satellite position fixing
MF telex distress, Urgency and Safety message
Two-way RT communications with life raft during SAR operations
NAVTEX English-language broadcasts
What is the most IAMSAR procedural word that indicates. " I must pause for a few seconds, standby for further tranmissions ?
Break
Wait
Affirmative
Negative
What does BDE Stands for ?
Below Deck Enchancement
Bits Digital Equipment
Below Deck Equipment
Below Data Equipment
What action should be taken, when you received on Ch-70 DSC Distress alert ?
Review the incoming message information but take no action unless requested to do so by the RCC
Use DSC to immediately notify the vessel their Distress has been received
Silence the alarm and immediately call the master for further instructions
Silence the alarm, review the message and set up watch on Ch-16 to listen for Mayday communications
Using high or maximum power on MF transmitter, what typical range it would give ?
About 50 miles range
About halfway around the world
About 150 miles range
Worldwide range
What is the proper format for a Distress follow on voice transmission (3x) is three times) ?
All ships 3x, this is Ship's Name/Call sign 3x, Ship's position, nature of distress and assistance requested
All Station 3x, this is Ship's Name/Call sign 3x, Ship's position, nature of distress and assistance requested
Mayday 3x, this is Ship's Name/Call sign 3x, Ship's position, nature of distress and assistance requested
Mayday 3x, this is Ship's Name/Call sign once, Ship's position, nature of distress and assistance requested
Where NAVTEX cannot be feasibly established, what system can be implemented to provide an automated service in coastal waters to receive MSI ?
Safety Net
General Information
Fleet Net
Coastal Radio Information
Which of the following two-letter signal are the most commonly used as "I require immediate assistance" ?
CB
AN
MB
AL
Which of the following is designated as the International distress, safety and calling frequency for radio telephony for stations of the maritime mobile service when using frequencies in the authorized bands between 156 and 174 MHz ?
165.8 MHz
168.5 MHz
156.8 MHz
158.6 MHz
Which of the following stand for TDM ?
Transmitter Division Multiplex
Time Direct Multiplex
Transport Division Multiplex
Time Division Multiplex
What is the code used for the retrieval of meteorological forecast ?
51
42
52
43
What does AORE stands for ?
Above Ocean Region East
Atlantic Operations Region East
Atlantic Operations Radio Emergency
Atlantic Ocean Region East
What is the meaning of "Reserve Source of Energy" ?
Diesel fuel stored for the purpose of Operating the powered survival Craft for a period equal to or exceeding the U.S.C.G and SOLAS requirements
None of these
High caloric value items for lifeboat, per SOLAS regulations
The Supply of electrical energy sufficient to operate the radio installations for the purpose of conducting distress and safety Communications in the event of failure of the Ship's main and emergency sources of electrical power
Regarding GMDSS radio installation, how would you describe the requirement for emergency and reserve power ?
For the compulsory ships must have emergency and reserve power sources for radio communications
The reserve power source is not required for radio communications
An emergency power source for radio communications is not required if a vessel has proper reserve power (batteries)
There is only one of the above is required if a vessel is equipped with a second 406 EPIRPB as a backup means of sending a Distress alert
In which IMO Convention does the guidelines and criteria for Ship Reporting System are associated with ?
ISM Code Chapter 9
Marpol Annex 3
SOLAS regulations V/II
STCW Table A-IV/2
Which of the following best describe a safety transmission ?
A man falls overboard
When giving position to AMVER
All message relative to the immediate assistance required by a ship, aircraft of other vehicle in imminent danger
A communications transmission which indicates that a station is preparing to transmit an important navigation or weather warning
Who shall refer proposals for the adoption of ship reporting system to the Organization ?
Marine reporting system
AMVER
Contracting Goverments
USCG
What is this code to obtain assistance to connect to a subscriber in a country where the service provider is, in any country which does not have an international operator ?
12
13
00
11
Identify from the following vessel operating in which sea area's required to carry either Inmarsat or HF equipment or a combination thereof under GMDSS ?
All sea area
A4
A1
A3
How would you describe a vertical quarter wave antenna with a good ground connection ?
It will radiate omni-directionally
It will not function due to being grounded
It will only be used in Satellite communications
It will radiate directionally due to being grounded
What does NAVTEX stands for ?
Navigational Telephony
Network Telex
Narrow Telex
Navigational Telex
What might be used as a homing signal by the search and rescue vessels in the immediate vicinity of the ship in distress ?
A 121.5 MHz emergency transmitter in a Satellite EPIRB
Strobe light
Flare gun
406 MHz signal from a satellite EPIRB
As soon as details of the incident or accident have become clear enough to indicate SAR involvement, what should be transmitted by the Rescue co-ordination Center (RCC) and On scene coordinator (OCS) to all vessels and other stations ?
MAREP
SHIPREP
POSREP
SITREP
If a ship sinks, what device is designated to float free of the mother ship, is turned on automatically and transmit a distress signal ?
Bridge-to-bridge transmitter on 2182 kHz
EPIRB on 121.5 MHz/243 MHz or 406.025 MHz
Auto alarm key on any frequency
EPIRB on 2182 kHz and 405.025 kHz
In observing the secrecy of communication. Which of the following statement is not correct ?
The Operator could divulged the contents of the messages received to unauthorized people
The operator could not divulged the contents of the messages received to unauthorized people
The operator could divulged the contents of the messages received to chief cook
The operator could divulged the contents of the messages received to the master of the vessel
In the terrestrial radio service, which of the following category, message with the highest priority ?
Master's report to an agency
Weather observations
Telephone call to ship's owners
Message to agent on ship's business
What feature is NOT found on 406 MHz satellite EPIRB units ?
Emergency transmission on 406.205 MHz
Float free release bracket
121.5 MHz emergency homing transmitter
Aural locator signal
What does EGC stands for ?
Enhanced Group Call
Emergency Group Code
Emergency Group call
Enhanced Group Code
What element of a DSC call describes the emergency position with aid of 10 digits ?
Message 3 of distress calls
Message 2 of distress calls
Message 4 of distress calls
Message 1 of distress calls
What term is commonly used to describe the rapid fluttering sound sometimes heard from mobile stations that are moving while transmitting ?
Picket fencing
Flip-flopping
Frequency shifting
Pulsing
Who should encourage ships so that VTS be in use ?
Administration
AMVER
Port Authorities
IMO
What is the primary reason GMDSS imposes carriage requirements for different radio subsystems within a single sea area ?
Redundancy in duplicating all operational functions in the event of a system failure
The combined capabilities of redundant subsystems mitigate the risk of a single point of failure
Different subsystems are required to meet the specific equipment carriage requirements of national authorities
GMDSS vessel must be equipped to communicate in all modes with coast radio station
Which of the following system is most likely to be affected by atmospheric disturbances ?
The Inmarsat
The VHF DSC
The MF-HF radiotelephony
The Safety NETTM
Which GMDSS equipment is used in or near the survival craft ?
EPIRB
ELT
PLB
Walkie-Talkie
Via a coast-station radio medical advice is asked using NBDP, what command has to be given after ga+?
Pan+
41+
Med+
38+
What should an operator do to prevent interference ?
Turn off transmitter when not in use
Monitor channel before transmitting and make transmission as brief as possible
Monitor the channel before transmitting and make transmission as brief as possible
Transmission should be as brief as possbile
How many VHF Frequencies are available under GMDSS for DSC distress related Calls ?
Four
One
Two
Five
What element of the DSC call indicates if the call requires an acknowledgement receipt and if the current message is a reply to another call ?
DSC call in progress
SSB connected
End of sequence
Awaiting acknowledgement
What is defined as the area within the radiotelephone Coverage with a Continuous DSC alerting available as defined by the IMO regulation for GMDSS ?
Sea Area A2
Sea Area A1
Sea Area A3
Sea Area 4
Reference SOLAS IV, Regulation 2, what is meant by an area, excluding sea areas A1 and A2, within the coverage of an INMARSAT geostationary satellite in which continuous alerting available
Sea Area A2
Sea Area A1
Sea Area A4
Sea Area A3
If you send a VHF-DSC distress alert, what channel do you use for the follow-on voice transmission ?
VHF 16
VHF 70
VHF 13
VHF 12
Which of the following statements concerning satellite EPIRBs is TRUE ?
The coded signal identifies the nature of the Distress situation
If the GMDSS Radio Operator does not program the EPIRB, it will transmit default information such as the follow-on communications frequency and mode ?
The coded signal only identifies the vessel's name and port registry
Once activated these EPIRBs transmit a signal for use in identifying the vessel and for determining the position of the beacon
Which of the following statements concerning MMSI is true ?
All coast station MMSI must be 9 digits and begin with 2 zeros followed by the mid
It is the doppler frequency identification for measurement concept used to determine the EPIRB location
These are satellite identification to an Earth-side Local User Terminal (LUT)
All EPIRB units that are used as alerting devices has an MMSI for easy identification
Describe the range of transmission of most NAVTEX stations ?
Normally 200-400 nautical miles
Normally 1000 nautical miles during the daytime
100 nautical miles during night time
Normally 50-100 nautical miles from shore
How is a distress message normally initiated through INMARSAT ?
Certain INMARSAT units have a dedicated key that can be pressed for immediate, while other systems provide menu-driven features
All INMARSAT units have a dedicated key that can be pressed for immediate action
By addressing the word " DISTRESS " in the first line of the messages preamble........
By transmitting the distress message on the U.S. Coast Guard's dedicated monitoring channel
What would be the following references should consulted in order to identify the name of a vessel based on its Maritime Mobile Service Identify ?
ITU list of Coast stations
ITU List of ship stations and Maritime Mobile Service identity Assignment
ITU Master Plan of Shore Based facilities
ITU List of Radio determination and ship Stations
What is primary advantages of single-sideband over FM for voice transmission ?
SSB signals are easier to tune
SSB signals are less susceptible to interference
All of these choices are correct
SSB signals have narrower bandwidth
Reference to Radio Regulation Article 1 Section III Radio Services, What is meant by a mobile service between coast stations and ship stations, or between ships stations, or between associated on-board communication stations; survival craft station and emergency position-indicating radio beacon stations may also participate in this service ?
Maritime mobile-satellite service
Maritime mobile service
Land mobile-satellite service
Land mobile service
In case of serious medical emergency, to whom should the master may request Medical advice or Medical evacuation ?
By sending text messages to CES using Code 41
Contacting the CES operator using the radiotelephone procedure PAN PAN
By contacting the nearest CES by Inmarsat phone using Code 32
By calling the Designated Person Ashore
What is the medical service permanently staffed by doctors experienced in conducting remote consultations and aware of the particular nature of treatment on board ships ?
TMAS
Medico
Medivac
Interco
Which of the following 3-letter signal means "Do not give laxative or enema" ?
MRS
MRU
MRP
MRY
What preparation to be carried out during an annual GMDSS station inspection ?
GMDSS operators may be required to demonstrate equipment competencies and any of required equipment that is not fully operational can be repaired at the next port of call as long as their functional
All required equipment's must be fully operational and any required publications that are not current must been order
Licensed GMDSS operators may not be required to demonstrate equipment competencies but all required equipment must be fully operational
All required documents and publications might have to be produced and GMDSS operations may be required to demonstrate equipment competencies
What does NCS stands for ?
Network Coordinating Station
National Coordinating System
National Committee Services
Network Computer System
Which of the following 3-letter signal means "Apply hot compress and renew every 4 hours" ?
MRR 4
MRS 4
MRQ 4
MRP 4
Which of the following schedule should EPIRB's be tested without using satellite system at intervals not to exceed ?
Once a month
Once a day
Once a year
Once a week
What is the principal advantage of NAVTEX radio warnings ?
FM radio is necessary to receive these warnings
They cover a broad spectrum of the radio band allowing reception on almost any type of receiver
They can be used by mariners who do not know Morse code
Information on a given topic is only broadcast at specified times
Which of the following information is " NOT " vital in a distress follow-on voice transmission after a DSC alert ?
Ship's position nature of distress and assistance requested
Physical description of the vessel and number of person on board
Company emergency contact information
Ship's name, call sign and MMSI number
What is the main purpose of RT transmission on VHF Ch. 13 ?
For cancelling a false DSC Distress Alert sent on Ch.70
For SAR aircraft communications to home onto an EPIRB
For ship-to-ship Safety of Navigation communications
For ship-to-ship Routine communications
Which sideband is normally used for 10-meter HF, VHF and UHF single-sideband communications ?
Suppressed sideband
Upper sideband
Inverted sideband
Lower sideband
With reference to Radio Regulation Chapter 1 Article 1 Section IV 1.69. Which of the following is a station in the mobile service not intended to be used while in motion ?
Base station
Land station
Coastal station
Fixed station
Which statement concerning the testing of a compulsory radiotelephone station false ?
Calling the VHF Ch 16 or 2182.0 kHz is the most effective method
A daily test is necessary unless the equipment was used for routine traffic
Test may be accomplished by using the equipment for normal business
The test may not interfere with communications in progress and must wait or be suspended if a request to do so is made
What is a distress communication ?
Communications indicating that the calling station has a very urgent message concerning safety
An internationally recognized communications indicating that the sender is threatened by grave and imminent danger and request immediate assistance
An official radio communication notification of approaching navigational or meteorological hazards
Radio communications which, if delayed, will adversely affect the safety of life or property
What does MSC stands for ?
Maritime Safety Committee
Mobile Services Committee
Maritime Search Committee
Maritime Services Committee
Reference to Radio Regulation Article 1 Section III Radio Services, what is meant by a mobile service between coast stations and ship stations, or between coast stations and ships stations, or ship stations, or between associated on-board communication stations, survival craft stations and emergency position-indicating radio beacon stations may and participate in this service ?
Maritime mobile service
Land mobile-satellite service
Land mobile service
Maritime mobile satellite services
Choose from the following statement is TRUE regarding an MF/HF DSC Distress call ?
An alternate emission and frequency may be specified for follow-up communication by the vessel in the original Distress alert
Follow on communication should be presumed to take place on the SITOR (NBDP) frequency associated with the specific DSC frequency used
Both the nature of Distress and the alternate emission frequency must be specified for follow-up communications in the original Distress alert
Follow on communications should be presumed to take place on the voice frequency associated with the specific DSC frequency used
What is the responsibility of vessels under GMDSS ?
Vessel over 300 gross tonnage may be required to render assistance if such assistance does not adversely affect their port schedule
Every ship is able to perform those communication functions which are essential for the safety of the ship itself and of other ships
Only that vessel, regardless of size, closest to a vessel in distress, is required to render assistance
Vessels operating under GMDSS, outside of areas effectively serviced by shoreside authorities, operating in sea area A2, and A4 may be required to render assistance in distress situations
How would you describe the first symbol in the designation of radio emission under ITU rules ?
It is a type of information to be transmitted
It is a nature of signals modulating the main carrier
It is a bandwidth
It is a type of modulation of the main carrier
Which of the following frequencies and nodes is not allocated for distress in GMDSS ?
VHF channel 12
406 MHz Via EPIRB
1626.5-1645.5 via Inmarsat
Channel 70 DSC plus six (6) MF/HF DSC frequencies
Choose from the following system has the least effective radius operation ?
VHF DSC
HF SITOR (NBDP)
MF SITOR (NBDP)
NAVTEX
How would you describe the importance of ventilating a ship's battery locker ?
To prevent sulphation on the terminals
To reduce the risk of explosion
To allow oxygen into the locker to assist charging
To keep the cell tops dry
What should a GMDSS Radio operator do if a NAVTEX warning message is received but it contains too many errors to be usuable ?
Press RPT button and NAVTEX messages will be reprinted instantaneously
Listen to appropriate VHF weather channel for repeat warnings
Contact the NAVAREA coordinator and request a repeat broadcast
Do nothing. Vital NAXTEX messages will be repeated on the next scheduled broadcast
Identity from the following location should the GMDSS radio log be kept on board ship ?
Anywhere on board the vessel
Sea cabin
At the GMDSS operating position
Captain's office
If a crew member that was ill has died, which code should your message contain ?
MPO
MPL
MPN
MPR
What does USB stands for ?
Unity Side band
Universal Services Band
User Services Band
Upper Side Band
When the GMDSS Radio Operator on watch hears "SECURITE" spoken three times, what information should he expect to receive ?
Vessel in need of immediate assistance
Coast Station Traffic list
Message concerning the Safety of navigation or important meteorological warnings
Safety of vessel or person is in jeopardy
Choose from the following service or maintenance functions that a holder of a GMDSS Radio Operator license is prohibited to performed ?
From any reset tripped circuit breakers or replace defective fuses
From any adjustment or maintenance that may affect the proper operation of the station
From any replacement of consumable items such as paper, ribbon etc
From any routine battery maintenance if used as part of the GMDSS station
What is the requirements for the carriage of radio equipment in Sea Area 1 ?
A vessel will carry VHF equipment and either a satellite EPIRB or a VHF EPIRB
A vessel will carry a VHF, EPIRB and MF equipment or a satellite EPIRB
A vessel will carry a VHF, EPIRB, and MSI receiver
A vessel will carry a VHF, EPIRB, MF & HF equipment and a satellite EPIRB
To whom should the Master has to raise with where Radio Medical Advice suggests emergency evacuation of the patient to shore medical facility ?
Designated Person ashore
CIRM
WHO International Medical Guide for Ships
Nearest Coastal state MRCC
What is the transmission speed of a DSC call on the VHF band ?
1300 BAUDS
1360 BAUDS
1200 BAUDS
1250 BAUDS
Identify from the following duration of the radio log be retained on board before sending it to the shoreside license ?
At least one year after the last enrty
At least two years after the last entry
At least 30 days after the last entry
At least 90 days after the last entry
What sea area is defined as being within range of a shore-based MF station that provides for continuous DSC alerting
Sea Area A4
Sea Area A2
Sea Area A3
Sea A1
How would you best describe from the following the GMDSS Sea Area A4 ?
A continuous global coverage of the COSPAS- SARSAT system
An MF RT range of at least one shore station having continuous MF DSC
An area within 70° North - 70 ° South
An area within 70°-90° North and 70°- 90° South
Which Regulation in SOLAS Chapter IV states there shall be available at all times while the ship is at sea, a supply of electrical energy sufficient to operate the radio installations and to change any batteries used as part of a reserve source or sources of energy for the radio installations ?
Regulation 12
Regulation 13
Regulation 16
Regulation 14
Which of the following is NOT a provision for maintenance should a ship operating in area A-1 must have ?
At Sea Maintenance
Duplication of equipment
Onboard Radio technician
Shore maintenance
Mandatory installations of NAVTEX receiver and satellite EPIRB as additional Navigational Aids Equipment of ship Radio Stations engaged in coastwise trade, Pursuant to the provisions of (SOLAS IV) and its amendments and relevant Philippine Radiocommunications Laws of the National Communications Commission (NTC). When was the mandatory date of compliance ?
On or before 30 july 2002 for EPIRB and 30 Sept 2002 for NAVTEX
On or before 30 june 2002 for EPIRB and 30 Sept 2002 for NAVTEX
On or before 30 Feb 2002 for EPIRB and 30 june 2002 for NAVTEX
On or before 30 jan 2002 for EPIRB and 30 Dec 2002 for NAVTEX
What is the correct form for an RT Distress Message following a DSC Distress Alert ?
MAYDAY, name , call sign, and MSI , position, nature of damage, assistance required, further relevant information
MAYDAY, name, call sign, and MMSI, assistance required, position
MAYDAY, nature of distress, assistance required, further relevant info
MAYDAY, name , call sign, and MMSI, position, nature of distress, name of the Master
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