C1 new (201-300)
Navigating the Seas: GMDSS Knowledge Quiz
Test your knowledge of the Global Maritime Distress and Safety System (GMDSS) with our comprehensive quiz designed for maritime professionals and enthusiasts alike. With 30 carefully crafted questions, this quiz covers essential topics ranging from radio operations to emergency procedures.
Join us to challenge your understanding and stay updated on important maritime communication aspects. Here's what you can expect:
- In-depth questions covering critical GMDSS concepts.
- Multiple-choice format to enhance your learning experience.
- Immediate feedback on your answers to track your progress.
Which from the following features is a non component of a 406 MHz satellite EPIRB ?
Float-free release bracket
121.5 MHz emergency homing transmitter
Emergency transmission on 406.025 MHz
Aural locator signal
How would you compare the frequency range for Super High Frequency ?
From 30-300 GHz
From 30-300 MHz
From 300-3,000 MHz
From 3-30 GHz
A crewmember suddenly becomes blind in both eyes, which code should your message contain ?
MNO
MNI
MNJ
MNM
Which of the following frequency bands would most likely provide reliable communications between two stations that are 100 miles (160km) apart ?
The High frequency (HF) band
The Low frequency (LF) band
The Very High Frequency (VHF) band
The Medium Frequency (MF) band
How could the search vessel's GMDSS radio operator interrogate a survival craft SART ?
The SART signal is interrogated by the vessel AIS equipment and the bearing and position can be determine
By activating the emergency position-indicating radio beacon it will point to the direction of the SART
By switching ON the search vessels SART it responded automatically detecting other vessels SART signals
The SART automatically responded when it is detected by the search crafts or other vessel's on X-band radar signal
Which of the following conditions that would be a symptom of malfunction in a 2182 kHz radiotelephone system ?
When testing a radiotelephone alarm on 2182 kHz into an artificial antenna, the Distress frequency watch receiver become unmuted an improper testing procedure
A much lower noise level observed during daytime operation
If no indication of power output when speaking into the microphone
Failure to contact a shore station 600 nautical miles distant during daytime operation
Which of the following is the primary frequency that is used exclusively for NAVTEX broadcast internationally ?
490 KHz
518 KHz
500 KHz
4209.5 KHz
What statement is CORRECT regarding the additional equipment carriage requirement imposed for the survival craft of vessels over 500 gross tons ?
Four additional portable VHF radios are required
A second radar transponder is required
Additional carriage of two radio equipped lifeboats aft
The ability to communicate in all modes with any shore station
What is the correct DSC Alert Priority to be used for sending a Distress Alert on behalf of another vessel ?
Distress
Mayday relay
Urgency
Distress relay
What immediate action to be taken when a fault condition is displayed on the transmitter during mf DSC external test ?
Carry out an Internal DSC test as per operational manual
Check the location of MF transmitter fuses in the operational manual
Isolate the antenna and restest
Consult the fault finding guide in the operational manual
Which of the following EPIRB's most likely to be used to transmit a Distress alert signal ?
406 MHz EPIRB's
121.5/243 MHz EPIRB's
X-band EPIRB's
S-Band EPIRBs
What is a SART stands for ?
Search and Rescue Transport
Services and Rescue Transmitter
Search and Rescue Transponder
Services and Radio Transmitter
Which of the following EPIRB's is most likely to be used to transmit a Distress alert signal ?
121.5/243 MHz EPIRB's
Class A EPIRB's
406 MHz EPIRBs
S-Band EPIRBs
Reference SOLAS IV, Regulation 2, what is meant by an area excluding sea area A1, within the radiotelephone coverage of at least one MF coast station in which continuous DSC alerting is available
Sea Area A1
Sea Area A2
Sea Area A3
Sea Area A4
What would be an indication of a malfunction on a GMDSS station with a 24 VDS battery system ?
After testing the station on battery power, the ammeter reading indicates a high rate of charge that then declines
After testing the station on battery power, a voltmeter reading of 30 volts for a brief period followed by a steady 26 volt reading
A constant 30 volt reading on the GMDSS console voltmeter
All of these symptoms would indicate a potential battery charger malfunction
In the VHF band, what is the correct channel for making Routine DSC Alerts ?
Ch. 67
Ch. 70
Ch. 16
Ch. 06
What does Kbps stands for ?
Kilohertz
Kilobytes per second - 1000 bits/ second
Kilobyte per second
Kilobits per second - 100 bit/second
Which of the following statements concerning GMDSS Radio Operator requirements is false
Which at sea, adjustment to, and the maintaining of GMDSS equipment may be performed by the GMDSS Radio Operator as long as the work is supervised by an on board licensed GMDSS Radio Maintainer
Each compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times white at sea and mya elect to carry a GMDSS Radio Maintainer as well
All communications involving Safety of life a at sea must be logged as long as the compulsory vessel was not involved in such communications
Each compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at sea
An area within the radio telephone coverage of at least One VHF Coast station in which continuous DSC distress alerting is available is called ?
Sea area A3
Sea area A4
Sea Area A2
Sea area A1
What are the conditions under GMDSS, whereby a ship is NOT allowed to depart from any port ?
The vessel is not capable of performing all required Distress and Safety functions
The vessel is carrying more than the required number of qualified GMDSS radio operators
The vessel is not carrying a GMDSS radio maintainer, but has provided for shoreside maintenance plus duplication of equipment if required
The vessel has a temporary waiver of its radio license and Safety Certificate
Some LESOs have direct connections with local hospitals for used with this code, What is this code to obtain medical advice ?
38
33
37
32
What does DTE Stands for ?
Digital Terminal Equipment
Data Transport Equipment
Digital Transport Equipment
Data Terminal Equipment
Which of the following has been designated for "On-Scene" communications in GMDSS ?
Channel 16 on VHF RADIOTELEPHONE
Channel 70 DSC
VHF Tron air
2187.5 KHZ MF
What is defined as the area within the radiotelephone coverage area of at least one VHF coast station in which continuous DSC alerting is available as defined by the IMO Regulation for GMDSS ?
Ocean Area Regions AOR-W
Sea Area A1
Sea Area A2
Ocean Area Regions AOR-E
How would you describes modulation ?
Converting the carrier from a low frequency to a higher frequency
Imposing intelligence onto a radio carrier signal
Changing mark-space to 1 and 0
Adjusting the frequency to the optimum band for long distance communications
What is the total frequency are available for DSC Distress alerting ?
Five (5)
Two (2)
Seven (7)
One (1)
Choose from the following statements concerning MMSI is TRUE ?
Coast station MMSI numbers have 9 digits starting with 4
All MMSI numbers are 9 digits and contain an MID
Group MMSI number must begin with 2 zeros
Ship station MMSI numbers can be 7 digits or 9digits depending on the Inmarsat terminal
How are the normal working conditions restored after radio Silence has been imposed ?
The rescue coordination Center (RCC) that imposed the radio silence must transmit a voice message on the distress frequency stating\" Mayday"
The rescue coordination center (RCC) that imposed the radio silence must transmit a voice message on the distress frequency stating \ "Prudonce"
The rescue Coordination center (RCC) that imposed the radio silence must transmit a voice message on the distress frequency stating "Mayday Relay"
The rescue coordination center (RCC) that imposed the radio silence must transmit a voice message on the distress frequency stating "SeelonceFeene"
Which channel is designated for GMDSS Digital Selective Calling ?
Channel 13 (156650MHz)
Channel 06 (156.300 MHz)
Channel 70 (156.525 MHz)
Channel 16 (156,800 MHz)
Which type of voice modulation is most often used for long-distance or weak signal contacts on VHF and UHF bands ?
CW
SSB
FM
AM
Which of the following watches should a vessel compulsory maintain at Sea Area A1 ?
A continuous DSC watch on 8414.5 kHz plus one other HF DSC frequency
A continuous DSC watch on Ch.16
A continuous DSC watch on Ch. 70
A continuous DSC watch on 2187.5 kHz
What is the acronym for AUSREP ?
Australian Ship Reporting System
Australian vessel reporting system
Australian vessel rescue reporting system
Australian Radio Reporting System
Which of the following equipment is NOT a mandatory carriage requirement for survival Craft under GMDSS ?
At least two approved two-way VHF radiotelephone on every cargo ship between 300-500 gross tons
At least three approved two-way VHF radiotelephone on every passenger ship and cargo ships of 500 gross tons and upwards
At least one radar transponder must be carried on every cargo ship of 300-500 gross tons and two transponders (one for each side) of every passenger ship and every Cargo ship of 500 gross tons and upward
At least an AIS equipment is provided in a survival craft under GMDSS
When performing battery maintenance, what is the purpose of petroleum jelly ?
To protect exposed terminals and connectors
To protect the battery casing from corrosion
To protect hands from acid splashes
To protect against acid leakage through cell top caps
Which statement is NOT true regarding the COSPAS-SARSAT system ?
Doppler shift is used to locate the beacons
EPIRB are satellite beacons used alerting/ locating devices
Locate Distress beacons transmitting on 406 MHz
Maybe used to transmit public correspondence
What is the most important factor in determining the range of a VHF station ?
Type of terminals/connectors used
The height of antenna
Length of wire used
Quality of the antenna
If the NAVTEX cannot be feasibly established, what system can be implemented to provide an automated service in coastal waters to receive MSI ?
VHF DSC
ARQ SITOR
Safety/NET
AMVER
Which GMDSS equipment is associated with the land or terrestrial systems ?
Inmarsat-C
GPS
EPIRB
VHF-MF-HF
What does MCC stands for ?
Mission Control Center
Medium Control Center
Mobile Control Center
Mission Conduct Center
DSC controllers have a facility that allows the unit to be routinely tested without the associated transmitter being activated. At least when should be the unit while underway ?
Once a day
Once a Week
Twice a day
Twice a week
When a vessel rendering medical assistance to another distressed vessel or aircraft, the following equipment must be ready for possible use EXCEPT
Clothing
Rescue litter
Shelter
Medical suppliers and medicines
Which of the following is an Inmarsat antenna ?
Directional antenna
Omnidirectional antenna
Vertical antenna
Whip antenna
What is false regarding the Inmarsat E, L-Band EPIRB ?
Instant alerting
Global coverage
Minimum battery capacity is 48 hours
It will be activated when the ship sinks
How long should the battery of the SART last when in Transpond mode ?
4 hours
5 hours
8 hours
7 hours
The ITU that facilitates the assigned MID numbers to country, how many digits are in the Maritime Identification Digits (MID) ?
5
7
6
3
An operating method in which only one station can transmit at a time and indicates the end of a transmission by use of the word "over" is called ?
Full duplex Operation
Semi-duplex operation
Simplex operation
Duplex operation
Which of the following would mean that a coast station would like to have a "personal call" with you ?
To have a telephone conversation to the designated person
To have a telephone conversation with port authorities
To have a telephone conversation with a person whose name is known
To have a telephone conversation for an account of a requested shore subscriber
Select from the following reference should be consulted to identify the name of a vessel based on its Maritime Mobile Service Identity ?
ITU Master Plan of Shore Based Facilities
ITU List of Coast stations
ITU List of Radio determination and Ship Stations
ITU List of Ship Stations and Maritime Mobile Service Identity Assignments
What is the term for listing of the date and time events, programs, equipment, test, malfunctions and correction in communication ?
Log
Reporting
Documentation
File
What are the application of paired frequencies in general communications ?
Normally used with private coast stations
Normally used between private coast stations and ship stations
Normally used with public stations
Normally used between ship stations
What is the frequency range of Very High Frequency (VHF) ?
30-350 MHz
30-300 MHz
30-100 MHz
30-200 MHz
How would you describe the features on GMDSS satellites EPIRB units ?
A float-free release bracket, strobe light & Distress alert transmission on 406 MHz
A strobe light, Distress homing transmission on 406 MHz float free release bracket
An emergency transmission on 406 MHz, hydrostatic release, AIS homing frequency
A hydrostatic release, Distress alert transmission on 121.5 MHz , strobe light
What is defined as an area excluding sea areas A1 and A2 within the coverage of an INMARSAT geostationary satellite in which continuous alerting is available ?
Sea Area A3
Sea Area A1
Sea Area A2
Sea Area A4
What does IMO resolution A.814 (19) embodies guidelines for avoiding ?
Unnecessary usage of VHF
Unnecessary communication
Interference
False distress alert
What causes the SART to begin transmission ?
It begins radiating only when keyed by the opertor
After being activated the SART responds to radar interrogation
It is either manually or water activated before radiating
When activated manually, it begins radiating immediately
To Indicate correct operation of the AIS-SART be equipped with the following means EXCEPT;
Automatic
Both audible and visual
Audible
Visual
Pick from the following license meets the requirement to perform or supervise the performance of at-sea adjustments, servicing or maintenance which may affect the proper operation of the GMDSS station ?
GMDSS Operator's Maintainer's License of GMDSS Maintainer's License
GMDSS Radio Operator's License or Marine Radio Operator's Permit
General Radiotelephone Operator's License with Shipboard RADAR endorsement
Marine Radio Operator's Permit or GMDSS Maintainer's License
You send a VHF-DSC distress alert, what channel do you use for the follow-on voice transmission ?
16
12
13
70
Can you describe the radiation pattern of a vertical (whip) antenna ?
By a circle
By a figure of eight
By a cardioid
By an ellipse
What is the internationally recognized urgency signal ?
The word "PAN-PAN" spoken three times before the urgent call
The letters "TTT" transmitted three times by radiotelegraphy
The pronouncement of the word "Mayday"
Three oral repetitions of the word "safety" sent before the call
GMDSS equipment is required to be powered from the following sources EXCEPT :
A dedicated radio battery supply
Ship's emergency alternators/generators
Ship's normal alternators/generators
An emergency solar powered battery supply
How the vessel's operational capacity in detecting the operation of a SART in the vicinity ?
A unique two tone alarm signal heard upon the automatic unmuting of the 2182 kHz radiotelephone automatic watch receiver
The SART signal appears as a target which comes and goes the effect of heavy swells on a SART
A unique two tone "warbling" signal heard on VHF-FM Channel 70
A Unique radar signal consisting of a blip code radiating outward form a SART's position along its line of hearing
At what distance is VHF propagation normally limited ?
Around 700 miles
Around 850 miles
Around 500 miles
Around 800 miles
Which of the following channels and modes should be used when initiating a distress alert transmission ?
Channel 13 Radiotelephony and channel 16 DSC
Channel 6 DSC
Channel 70 DSC
Channel 6 Radiotelephony
When the GMDSS Radio Operator on watch hears "Securite" spoken three times, what information he can expect to be received ?
Message concerning the safety of navigation or important meteorological warnings
Message concerning maritime assistance
Message concerning circumstances that threatened the lives and property at sea
Message concerning urgency involving vessels at sea
With reference to Radio Regulation Chapter 1 Article 1 Section 1.88. Which of the following is a mobile earth station in the maritime mobile-satellite service located on board ship ?
Radiodetermination station
Radionavigation mobile station
Radionavigation land station
Radiolocation land station
How would explain why MF-HF transmission is required by antenna tuner ?
Because the length of the physically-fixed antenna must be electrically matched to the intended frequency of operation
Because the antenna tuner indicates whether the ionosphere is ready to reflect a transmission properly
Because the antenna tuner calculates the proper spectrum band for the operator to use
Because it ensures the transmission are restricted legal marine frequencies
What action will you carry out to regain operation on MF-HF frequencies if your MF-HF whip antenna breaks off and is blown way in a storm ?
Rig a horizontal, center-fed dipole antenna 12 meters long.
Rig a wire antenna approximately 10-12meters long as per the equipment instruction manual
Rig a long wire antenna at least 60 meters long
Rig a wire antenna 5-10 meters long from the antenna tuner to the highest vertical support
Which of the following are personal, functional or equipment FCC requirements of the GMDSS ?
Distress alerting and response, two STCW GMDSS watch stand, equipment carriage based on intended sea area of operations
Equipment carriage reduced for sea areas A3 & A4, Distress alerting and response and two FCC licensed GMDSS radio operators
One FCC licensed GMDSS radio operator in sea area A1 & A2, two FCC licensed GMDSS radio operators in sea areas A3 & A4 and equipment carriage based on intended sea area of operations
Equipment carriage based on intended sea area of operation, distress alerting and response and two FCC licensed GMDSS radio operations
Who may be contacted for ship reporting systems information on the availability of ships with a medical officer ?
Aircraft co-ordinator (ACO)
Rescue Coordination Center (RCC)
Coast Radio Station (CRS)
IAMSAR
For safety reasons, radar reflectors fitted should produce reliable detection in practical conditions and perform in what type of radar ?
9 GHz (X-band)
3 GHz (S-Band)
Both 9 GHz (S-Band and 3 Ghz (X-band)
Both 3 Ghz (S-band and 9 GHz (X-band)
How would you describe the normal working conditions restored after radio silence has been imposed ?
The Public Correspondence Station (PCS) that imposed the radio silence must transmit a voice message on the Distress frequency stating "SEELONCE FEENEE".
The Coastal Earth Station (CES) that imposed the radio silence must transmit a voice message on the Distress frequency stating "SEELONCE FEENEE"
The Rescue Coordination Center (RCC) that imposed that imposed the radio silence must transmit a voice message on the distress frequency stating " SEELONCE FEENEE"
The Land Earth Station (LES) that imposed the imposed the radio silence must transmit a voice message on the Distress frequency stating "SEELONCE FEENEE"
The SART operation on 9 GHZ. What radar band do frequency belong to ?
A band
Z- band
X-band
B-band
What is defined as an area excluding sea areas A1 and A2, within the coverage of an INMARSAT geostationary satellite in which continuous alerting is available ?
Sea Area A3
Sea Area A4
Ocean Area Regions AOR-E, AOR-W, POR or IOR
Coastal and Inland Waters
What will occur if a GMDSS Radio Operator initiates a DSC transmission but does not insert a message ?
The receiving station will poll the DSC unit of the vessel in Distress to download the necessary information
The transmission is not initiated and "ERROR" is indicated on the display readout
The transmission will be made with "default" information provided automatically
The transmission is aborted and an alarm sounds to indicate this data must be provided by the operator
Trading at GMDSS Sea Area A3, how would you best describe as being an area within ?
It is within coverage range of the Inmarsat geostationary satellite system
It is within 50 to 600 miles from the coast
It is within MF RT range of at least one shore station providing continuous MF DSC alerting
It is within VHF RT range of at least one shore station providing continuous VHF DSC alerting
Under what condition would you relay a DSC distress alert ?
When the master of the vessel in distress considers that further help is necessary
If the mobile unit in distress is incapable of further distress alert communications
When your vessel is not in position to render assistance
When your position is too far away from the vessel in distress
If a Distress alert is received on the 12 MHz frequency, how would demonstrate your action ?
Set the transceiver to 12290.0 kHz simplex J3E emission
Use DSC to acknowledge relay the alert using the 12 MHz frequency
Set the transceiver to 12520.0 kHz simplex F1B/J2B emission
Don nothing. Ship is too far away to render assistance
Who has ultimate control of service at a ship's radio station ?
The Radio Officer-in-charge authorized by the captain of the vessel
An appointed licensed radio operator who agrees to comply with all Radio Regulations in force
The master of the ship
A holder of a First class Radiotelegraph Certification with a six months service endorsement
Which of the following is a form of amplitude modulation ?
Single sideband
Phase shift keying
Packet radio
Spread- spectrum
How would you explain "radio silence" being imposed ?
By the Land earth Station (LES) controlling the Distress communications on that frequency
By the On Scene Coordinator (OSC) or the RCC chosen by the SAR Mission Coordinator
By the vessel first responding to the distress call
By the nearest public Correspondence Coast Station
Your vessel is in GMDSS Sea Area A1, drifting ashore and you require a tow, what do you initially transmit by Ch. 70 DSC ?
An all stations Safety call
An all station Urgency call
A Distress Alert Relay
An All Station call
Reference to Radio Regulation Article 1 Section III Radio services, what is meant by a radiocommunication service between mobile and land station, or between mobile stations (CV) ?
Land mobile-satellite service
Maritime mobile service
Land mobile service
Mobile service
Choose from the following ITU List of Service Publication that contains the following: I International call sign series II. Signals characterizing the emissions of radio beacon station and list of call sign, used in the maritime mobile service III. List of call signs and numerical identities assigned to predetermined groups of stations and a list of former present call signs of ship stations IV. Numerical identities used in the maritime mobile and maritime mobile-satellite services
ITU List V
ITU List IV
ITU List VIIA
ITU List VI
How would you describe the transmission of a Distress alert by a station on behalf of another vessel actually in Distress should not occur ?
When communications between the Distress vessel and a Coast stations are already in progress
When the mobile unit actually in distress is not itself in a position to transmit the distress alert
When the responsible person at the Coast station determines further help is necessary
When the Master or responsible person on the mobile unit not in Distress so decides
Which of the following 3-letter signal means "Give enema" ?
MRW
MRS
MRX
MRU
What should you do when you received DSC alert ?
You should immediately set continuous watch of VHF channel 70
You should immediately set a continuous watch on the NBDP frequency that is associated with the frequency band which the distress alert was received
You should immediately set continuous watch on the radiotelephone frequency that is associated with the frequency band which the distress alert was received
No action is necessary as the DSC unit will automatically switch to the NBDP on follow on communication frequency
If a vessel is engaged in local trade and at no point in its voyage travels outside the range of a VHF shore station with continuous DSC alerting then the vessel is operating in what area ?
Coastal and international zones
Inland and coastal waters
Sea Area A1 and A2
Sea Area 1
What action should you take after sending a false distress alert on MF ?
Make a voice announcement to cancel the alert on 2187.5 kHz
Make a voice announcement to cancel the alert on 2182 khz
Make a voice announcement to cancel the alert on CH 16
Make a voice announcement to cancel the alert on 8291 khz
When do NAVTEX broadcasts typically achieve maximum transmitting range ?
Post Sunrise
Middle of the night
Local Noontime
Sunset
What is the term that refers to a land station in a maritime mobile service ?
Maritime station
Ship earth station
Coast station
Coast earth station
What does AORW stands for ?
Atlantic Operators Radio Watch
Above Ocean Region West
Atlantic Operators Region West
Atlantic Ocean Region West
This code should be used if the condition of an ill or injured person aboard the vessel requires urgent evacuation a shore or the services of a doctor aboard the vessel. What is this code that will ensures the call is routed to the appropriate agency or authority ashore to deal with the situation ?
33
38
37
36
What does LUT Stands for ?
Local User Transport
Local User Terminal
Land User Transport
Land User Terminal
In GMDSS, When is the VHF Channel 70 EPIRB can be substitute for a float free Satellite EPIRB ?
SEA AREA A2
SEA AREA A1
SEA AREA A4
SEA AREA A3
In which frequency band does a search and rescue transponder operate ?
9 GHz
406 MHz
3 Ghz
S-band
In programming the NAVTEX receiver, what are the types of message which are always received and cannot be rejected ?
A, B, E
A, B, C
A, B, D
A, C, D
What does AAIC stands for ?
Accounting Authority International Code
Automatic Authority Identification Code
Authority Accounting Identification Code
Accounting Authority Identification Code
What does the DSC control unit do if the GMDSS Radio Operator fails to insert updated information when initiating a DSC distress Alert ?
I will abort the transmission and set off an audible alarm that must be manually reset
It will initiate the DSC Distress alert and default information will automatically be transmitted
It will initiate the DSC Distress alert, but any station receiving it will have to establish contact with the distressed vessel to determine it identify, position and situation
It will initiate the DSC alert but, as no information will be transmitted, rescue personnel will not be able to identify the vessel, its position or its situation
Which from the following functional requirements for GMDSS compliant ships (ships to which the SOLAS Convention applies) and while at sea, shall be capable of ?
Transmit and receive on-scene communications, including appropriate SAR coordinating communications
Receive shore-to-shore distress alerting, receiving ship-to-ship distress alerting
Receiving shore-to-ship distress alerting, receive ship-to-ship distress alerting
Transmitting ship-to-ship distress alerts by at least two separate and independent means, each using a different radio communications service
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