C2 New 1-55
GMDSS Proficiency Quiz
Test your knowledge on GMDSS and maritime communication protocols with our comprehensive quiz. This quiz is designed for individuals looking to enhance their understanding of Distress Alert systems, battery maintenance, and emergency communication procedures.
Key Features:
- 55 multiple-choice questions
- Focus on real-world applications
- Perfect for GMDSS operators and maritime enthusiasts
When a DSC Distress Alert is received requesting J3E by the other vessel on fire, what should you do as a GMDSS Radio Operator ?
No action is necessary as the DSC control unit will automatically switch the NBDP on a follow-on-communication frequency.
Set a continuous watch on the NBDP frequency that is associated with frequency band on which the distress alert was received right away.
Set a continuous watch on the radio telephone frequency corresponding with the frequency band where the distress warning was received right away.
Immediately you should set a continuous watch on VHF channel 70
Which of the following is a symptoms of a malfunction on a GMDSS station with a 24 VDC battery system ?
A constant 30 volts reading on the GMDSS console volt meter.
A voltmeter reading of 30 volts for a brief duration followed by a constant 26 volt reading after testing the station on battery power.
The ammeter measurement indicates a high rate of charging that lowers after testing the station battery power.
All of the symptoms indicate a potential battery charger malfunction.
On board a survival craft what GMDSS equipment is used ?
EPIRB
NAVTEX
Handheld radio
GPS
What can be the visual observation of a condition whereby it may be possible to initiate a reliable TELEX transmission but a voice transmission may not be possible ?
An indication on a meter or on the terminal of low receiver signal strength.
An indication of very high antenna elevation on the terminal display screen.
An indication that the antenna has reached its maximum travel in one direction.
An indication on a meter or on the display terminal of a high transmit power.
What is the operational communications conducted by radio other than distress ?
General Communication
Security related communication
Operational traffic communication
Public correspondence communication
When making a DSC public correspondence, how long would you wait before attempting to make a second call with station which does not answer ?
5 minutes
10 minutes
15 minutes
3 minutes
You had abandon your vessel because of distress situation, which of the following should be taken on board a survival craft ?
Throw the SART and EPIRB in the water to activate automatically.
Place the SART and EPIRB in the "ON" position and secure them to the survival craft.
Nothing to worry as the SART and EPIRB will both float free and operate automatically.
Program the SART and EPIRB to transmit the vessel location and the nature of distress.
What is the reason why should minimized function testing of a SART ?
Minimize power consumption and only test at sea to reduce potential interference and confusion.
Possibility of misinterpretation by the other vessels as a distress situation.
Potential interference with safe navigation, possible misinterpretation of actual distress, and minimizes draining of the battery.
Only test in port to prevent potential interference with a safe navigation at sea.
Who is incharge of distress traffic during SAR operations when all participating ship are merchant vessel ?
Rescue Coordination Center (RCC)
Coordination Surface Search (CSS)
The first vessel that arrived on the scene
On-scene Commander (OSC)
Your vessel is on fire on a radio traffic sea area, how will you initiate a call using VHF ?
SECURITEE spoken three times followed by the nature of your message.
MAYDAY spoken three times and followed by the nature of your message.
PAN-PAN spoken three times and followed by the nature of your message.
Any STATIONS or ALL SHIP's spoken three times followed by the nature of your message.
If an Inmarsat Distress Alert set up menu contains an incorrect or unavailable LES code, what will happen to the distress transmission ?
The NCS will step in and route the Distress alert transmission to an RCC
If the LES code is incorrect the distress alert will be detected by any RCC.
The NCS will update the LES code in the distress alert set up menu/
The NCS will send a distress alert set incorrect and the LES code alarm will activate
What is the term which refers to the supply of electrical energy required to supply radio installations on every ship for the purpose of conducting distress and safety radio-communications in the event of failure of the ship's main and emergency sources of electrical power ?
Ship's emergency diesel generator
Reserve Source of energy.
Emergency power
Ship's standby generator
You have a very loud low frequency hum appearing on your transmission. In what part of the transmitter would you first look for trouble ?
The power amplifier circuit
The driver circuit
The variable frequency oscillator
The power supply
What is most likely the cause that SART do not indicate standby mode ?
The SART PCB is drifting
The SART switch ring magnet is displaced.
The SART battery is dead
The SART is on active mode
When the fire onboard is already extinguished, what is the necessary message that you should send ?
An alert message that fire is already extinguished
A cancellation message of the previous alert message.
Urgency message that fire onboard is already extinguished
An advice message to update the alert message.
What is your main function if your vessel is the designated On Scene Co-ordination with respect to distress communication ?
Recover the EPRIB and switch it off so that it stop sending Distress signal.
Deploy a SART to assist in homing casualties
You should maintain communication with all Search and Rescue (SAR) facilities.
Fixed the position of the casualty and advice all participating SAR facilities.
When receiving signals using emission class J3E, what turning device is adjusted until the voice is clearly audibly heard in the loudspeaker ?
Squelch Control
Clarifier Control
Volume Control
RF Control
What is a distress communication ?
In radiotelegraphy SOS sent as a single character and in radio telephony speaking the word "MAYDAY"
All message relative to the immediate assistance required by a ship, aircraft or other vehicle in imminent danger.
International recognized communications relating to emergency situations.
Health and welfare message concerning the immediate protection of property and safety of human life.
When you received a distress alert at DSC 2187.5 kHz and your ship is capable to provide assistance, how will you acknowledge the received MAYDAY ?
You should acknowledge at 2187.5 kHz and render assistance as necessary.
You should acknowledge at 6312.5 kHz and assist as necessary.
You should acknowledge at 2182 kHz and render assistance as necessary.tance as necessary
You should acknowledge at 407.5 kHz and assist as necessary.
What action should you take after sending a false Distress Alert on 2187.5 kHz indicating J3E ?
Reset the DSC controller and no need to send cancellation message.
Switch off the equipment for 30 minutes and it will automatically reset.
Reset the DSC controller and send a cancellation message to all station on 2182 kHz.
Reset the DSC controller and message to all station on VHF Ch. 16
Which channel and mode should you use when initiating a Distress alert transmission such as fire onboard ?
Channel 6 DSC
Channel 13 Radiotelephony and Channel 16 DSC
Channel 70 DSC
Channel 6 Radiotelephony
How would you describe a temperature effect on the specific gravity of lead acid batteries ?
Higher temperature in a high specific gravity reading.
Higher temperature results in a lower specific gravity reading.
Lower temperature results in a lower specific gravity reading.
Lower temperature results in a higher specific gravity reading.
Your vessel is on fire and require immediate assistance, how will your start your VHF-call ?
MAYDAY (3x)
SECURITY (3x)
SOS (3x)
PAN PAN (3x)
What protection should you wear when performing GMDSS equipment back up power battery maintenance ?
You should wear eye protection, gloves and apron.
You should wear cover all and gloves.
You should wear face mask and gloves.
You should wear eye protection and cover all.
What must be the characteristics of the Reserve Source of Energy under GMDSS ?
It must be independent of the ship's electrical system
It must be incorporated into the ship's electrical system
It must have power a supplies independent to HF and MF installations at the same time
It must be independent of the propelling power of the ship
Which is the best protection must be worn when you carrying out maintenance on batteries ?
Eye protection gloves and apron
Glove and eye protector is enough.
Eye protection and cover all
Gloves and cover all to protect the hand.
Who normally acknowledge a DSC distress alert message ?
Coast staion
The first station that received it.
Any station which heard it
Rescue Coordination Center
What would you do if you notice a transmission problem during transmission ?
Complete the transmission it will automatically stop it trouble persist.
The transmission should immediately be suspended.
Switch-off the power supply of the equipment and re-start again
Ignore the defect malfunction and continue with transmission
You are combating fire at the engine room and the Master order you send a distress call. Why is it important to transmit MAYDAY or PAN-PAN signals even if not in distress ?
To give warning to other ship to keep clear of your vessel.
To alert the consignee's that their cargoes may not arrive on time,
To advice other station that you require assistance.
It will alert shipping to a possible future distress call.
What will you do when a received Distress Alert from a vessel on fire is requesting J3E ?
No action is necessary as the DSC control unit will automatically switch to the SITOR (NDBP) follow on frequency
Immediately set a continuous watch on the SITOR (NBDP) frequency that is associated with frequency band on which the Distress alert is received,
Immediately set continuous watch on the radio telephone frequency that is associated with frequency band on which the Distress alert was received.
Immediately set a continuous watch on VHF Ch. 70
What happens if you speak into the handheld transceiver's microphone when the deviation adjustment is set to high ?
It may cause atmospheric interference in the air around the antenna
It may cause digital interference to computer equipment
It may cause interference to other stations operating nearby.
It may cause interference to other station on a higher frequency bands.
What is should the GMDSS Radio Operator consult in the proper procedure to be followed in distress situations under GMDSS ?
The IMO recommendation
Part 80, Subpart of the FCC rules and Regulations
The manufacturer's instruction manual
Part 90 of the FCC Rules and Regulations
Which statement is false regarding the maintenance of GMDSS equipment at sea ?
All at sea maintenance and repairs must be performed by or under the supervision of a person holding a GMDSS Maintainer License.
The GMDSS maintainer may be the person responsible for ensuring that the watches are properly maintained.
Ship must carry atleast one person who qualifies as a GMDSS maintainer for the maintenance and repair of equipment if at sea maintenance option is selected.
The GMDSS maintainer may not be the person designated to have primary responsibility for radio communications during Distress incidents even if licensed as an operator
What should be the information content of GMDSS distress alerts, such as a fire onboard ?
The distress message should contain information about flag and port of registry
The distress alert message should contain the name and position of the distress vessel
The distress message contain is automatically program when the distress key is press
The distress message should contain the nature of the distress
What should be the information content of GMDSS distress alerts, such as a fire onboard ?
The distress message should contain information about flag and port of registry
The distress alert message should contain the name and position of the distress vessel
The distress message contain is automatically program when the distress key is press
The distress message should contain the nature of the distress
What is the approximate lifetime of the marine leads batteries ?
5 years
3 years
4 years
2 years
To ensure that all necessary MSI has been received, when should the NAVTEX receiver be switched on ?
At least 3 hours before sailing time
At least hours before sailing time
At least 1 hour before sailing time
At least 4 hours before sailing time
What is the digital automatic alerting system that you hear on ship VHF, MF, and HF frequency bands with information (position, I.D. Of ship and type of distress) to the operator at CRS or RCC ?
NAVTEX
Narrow Band Direct Printing
Digital Selective Calling
Automatic Identification system
What is most likely the cause when you triggered SART and no active mode indication ?
A drift on PCB
Displaced magnet
SART is stock in active mode
A faulty PCB
What personal protective equipment you should use during maintenance of radio equipment batteries ?
Eye protection and cover all
Gloves and cover all to protect the hand.
The normal working clothes
Eye protection gloves and apron
If you abandon your ship and boarded a survival craft, which of the following step you should prioritize ?
Ensure that the EPIRB and SART is activated until help arrived
Throw the EPIRB and SART activated when remove from securing bracket.
Nothing to do as EPIRB and SART activated automatically when remove from securing bracket.
Make ready the EPIRB and SART activate when another vessels in sight.
What publication should a GMDSS Operator reference for the correct GMDSS equipment set-up and operation ?
ITU publication Manual
NTC regulation Manual
Part 90 of the FCC Rules and Regulation
The manufacturer's instruction manual
Your vessel losses Inmarsat SES operation after a large course change. Which of the following could cause this ?
Shadowing of SES antenna by clouds or other weather formation
Misalignment of the shadow correction filter
System loses gyro follow-up or a gyro system malfunction
Misalignment of the SES antenna and the LES
In the operation of 2182 kHz radiotelephone system. Which of the following indicates a symptom of malfunction that need to be reported to the Master
Failure to contact a shore station in 600 miles distance during daytime.
When testing alarm on 2182 kHz into an antenna, the distress frequency watch receiver becomes unmuted
No indication of power output when speaking into the microphone
Much lower noise level observed during daytime operation
Which of the following frequencies is "NOT" allocated for alerting in the Global Maritime Distress and Safety System ?
DSC on 156.525 MHz (channel 70 ) and various MF/HF frequencies
415 kHz and 526.5 kHz
1626.5 kHz 1645.5 kHz (INMARSAT)
406 MHz (EPIRB)
What is the system that provides priority access to satellite channel in an emergency situations and alert to the LES personnel ?
Safety Net System
Maritime Safety Information System
Inmarsat System
Enagnce Group Call System
What is the cause of the LCD brilliance that cannot be raise ?
The fuse of the receiver blow
The battery id dead
The life of the LCD has expired
The battery voltage is low
Onboard a life raft, which piece of required GMDSS equipment is the primary source of transmitting locating signals ?
Radio Direction Finder (RDF)
A SART in transpond mode
Survival Craft Transceiver
An EPIRB transmitting on 406 MHz
When your equipment fails, how will you decide on the requirement for parts and repair materials for the said GMDSS equipment ?
The GMDSS maintainer requirements
The recommendation of PSC inspector
The recommendation of the manufacturer
By IMO circular "Equipment Spares"
What is the signal you must transmit to locate your position using your mobile unit ?
Radio direction signal
Homing Signal
Alerting signal
Radio beacon signal
During transmission your radio signal become distorted what should you do ?
Reduce transmitter power
Cease the transmission
Reduce transmitter power Reduce audio amplitude
Use minimum modulation
What distress alert are based on the use of transmission via satellites ( from a ship earth station satellite EPIRB) and terrestrial services (from ship stations and EPIRBs) ?
Ship-to-shore distress alert
Shore-to-ship distress alert
Ship-to-ship distress alert
Shore-to-shore distress alert
There are no signals or static heard in the receiver of the SSB Transceiver, although a loud noise is heard if the volume control is advance all the way up, which of the following is "NOT" the possible cause ?
The frequency is not properly set.
The antenna switch has been transferred to the test position
A defect receiver
The antenna of fedd line has been damaged
What is usually the first step of GMDSS radio operator to take when initiating a distress priority message via INMARSAT ?
By pressing the security alert safety system (SASS) button in the Master's cabin
By pressing a distress button or hot key's on the equipment
Edit distress message
Access the File menu
What must be the provisions for maintenance of a ship operating in sea area A1 ?
Any one of the following.
Duplication of the equipment
Shore maintenance
At sea maintenace
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