maison Essais en ligne Test for Officers onboard about Radio Communication (GMDSS) (CES v6.0)
Test en ligne : Test for Officers onboard about Radio Communication (GMDSS) (CES v6.0)
Добро пожаловать на страницу, где вы можете пройти онлайн CES тест (Crew Evaluation Test) по «Radio Communication GMDSS» (радио коммуникация, ГМССБ). Этот тест предназначен для морских специалистов, желающих улучшить свои навыки в области радио коммуникации и ознакомиться с Глобальной морской системой спасения и безопасности (ГМССБ) через эффективное электронное обучение и оценочную тренировку.
Основные характеристики теста:
Версии: 4.1, 5.0, 5.1, 6.0.0.
Тип теста: STCW.
Должность: Officer.
Уровень: Radio communication.
Область: GMDSS.
CES тесты, предоставляемые компанией Seagull (ныне OTG), являются надежным онлайновым инструментом для оценки базовых знаний моряков и определения потребностей в профессиональной подготовке, необходимой для успешной навигации и обеспечения безопасности на море в соответствии с международными стандартами.
Ocean Technologies Group при создании вопросов теста учли множество аспектов радио коммуникации и ГМССБ, включая:
Управление кризисными ситуациями и скоплением людей.
Интегрированная навигационная система.
Управление балластными водами.
Обработка и укладка грузов.
Управление эксплуатацией судна и обеспечение безопасности.
Морская инженерия.
Техническое обслуживание и ремонт, и многие другие темы.
Эта страница содержит вопросы Seagull CES по теме «Radio Communication, GMDSS», которые собраны из тестового симулятора. Эти вопросы могут быть использованы для проверки компетентности команды судна или для самопроверки.
Тема "Радио коммуникация, ГМССБ" крайне важна на судне, так как обеспечивает связь с внешним миром и способствует безопасности плавания. ГМССБ, в частности, играет ключевую роль в срочных ситуациях и спасательных операциях. Капитан и специалисты по радиосвязи на судне отвечают за правильную работу систем связи, передачу информации и по...
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Le test se compose de 80 questions aléatoires.
Nombre total de questions sur ce sujet : 198
Nombre total de questions sur ce sujet : 198
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Which type of call will be sent by a ship adrift and needing the assistance of a tug? The weather is not bad and the ship will be aground 24 hours later.
Distress relay call.
Urgent call.
Distress call.
Safety call.
What statement is correct with frequency modulation?
The amplitude fluctuating an LF-rhythm.
Frequency modulation is often applied in the maritime VHF-range (band).
The amplitude remain constant.
The frequency is constant.
Is it necessary to state the accounting code of the vessel in fully automated radio telex-traffic with a coast-station?
Yes.
No, because the AAIC is included in the radio telex-identification.
No, when AAIC is unknown, it will be asked for.
It depend upon your location.
Command of radio-traffic between vessels and coast stations lies:
Always with the coast station.
With the station called.
With coast guard.
With the station that calls.
The word SATCOM is spelled conform the international phonetic alphabet:
Sierra, Anna, Tango, Cornelies, Oslo, Mike.
Sierra, Able, Tango, Cornelies, Oslo, Man.
Sierra, Able, Tripoli, Charlie, Oscar, Mike.
Sierra, Alfa, Tango, Charlie, Oscar, Mike.
The authority to order the use of distress signal or distress alerts is:
The first person to discover the distress situation.
The person designated to maintain communication during distress situations.
Only with the master.
Company safety officer.
The effect of reflection of the radio waves in the ionosphere on the range depends on:
The correct adjustment of the button band width.
The amount of ionisation.
The correct adjustment of the clarifier.
The correct adjustment of the dimmer.
According to the rules of GMDSS all vessels have to be equipped with:
A VHF in captains cabin.
At least three mariphones.
A possibility to receive MSI.
On both sides an EPIRB.
Which word will precede an urgency message?
URGENCE.
PAN.
PAN-PAN.
MAYDAY.
The emergency battery of a GMDSS portophone:
Must be tested once a week.
Must be replaced before the expiry date is exceeded.
Must be charged after expiry date.
Cannot be replaced.
What is the most important factor influencing the HF range?
The channel used.
The frequency used.
The power of the transmitter.
The size of the antenna.
A Cospas-Sarsat EPIRB can be used in:
Only in the sea-areas A1, A2 and A3.
Only in the sea-areas A2 and A3.
All sea-areas (A1 to A4).
Only in sea-area A4.
At the end of a radio telex-connection, when a “store and forward” message has been transmitted, the coast-station at least gives a:
Time (in UTC) whereupon the telex for the subscriber is delivered.
Approximate time when telex will be delivered.
Code in letters which will be repeated when the telex has been delivered to the subscriber.
Reference number.
The traffic list of a coast-station is a list of:
Call-signs of ships for which a radio-telephone call, a telegram or another call is intended.
Name of ship’s scheduled for berthing.
Pertinent navigational and weather information.
Names of ships which, on behalf of safety at sea, are being routed by a traffic control system.
The wavelength of a radio-signal reflected against the F-layer may be:
150 m.
15 m.
1,5 m.
15 cm.
The identification of a coast station is composed as follows:
33 followed by the MID number.
00 followed by an MID-number and station number.
00 followed by an MID-number.
00 followed by an MMSI-number.
The word CHANNEL is spelled conform the international phonetic alphabet:
Charlie, Hotel, Able, November, November, Echo, Liverpool.
Cornelies, Hotel, Alfa, November, November, Echo, Lima.
Charlie, Hotel, Alfa, November, November, Echo, Lima.
Cornelies, Hotel, Apple, November, November, Echo, Land.
The category of a DSC-call determines:
For whom the message is destined.
How the rest of the call is to be composed.
The degree of priority.
How to conduct search and rescue.
Onboard the following message is received on the DSC controller: DOO: 245329000 CH16; S distress ack 244123000. What station sent the distress acknowledgement?
245329000.
244123000.
002453290.
None of the given.
With what system is a NAVTEX-message transmitted?
ARQ.
SELFEC.
JRC.
FEC.
After confirmation that there is no other radio-traffic, we call on a VHF working channel of a coast-station. When you don’t get any reply:
You can repeat your call immediately.
You must wait 3 minute minimum before repeating your call.
You must wait 5 minutes before repeating the call.
You must wait 1 minute minimum before repeating your call.
The display of the DSC-controller on board is showing the following lines: RX: 002442000; CH87; D Sellcall Routine. We’re asked to listen on:
VHF-channel 16.
Channel Delta of the coast station.
VHF-channel 87.
Radio telephony-channel 7 in the 8 MHz band.
At the entrance to the space where batteries are stored on board the following notice must be fitted:
Electrician only.
Keep access free.
No entry with naked light and/or flame.
Crew only.
According to the rules of GMDSS all vessels have to be equipped with:
On both sides an EPIRB.
A VHF in captains cabin.
A possibility to receive MSI.
At least three mariphones.
The propagation of radio-signals in the VHF-band is:
Strait.
Dependent on the hour of transmission (day or night).
Dependent on the power emmited and the temperature of the atmosphere.
Almost rectilinear.
The squelch on the control panel of a VHF-sat serves to:
Adjust the receivers volume.
Adjust the proportion of atmospheric noise in receiving the spoken word.
Adjust the threshold level for admitting signals and refusing noise.
Adjust the sound level of the signal received.
What HF-band is generally suitable for long distance transmission if one of two stations is Located in twilight?
22 MHz.
16 MHz.
4 MHz.
12 MHz.
On area A1 the function “Transmission of ship to shore distress alerts” is mainly based on:
The use of SART transponders.
The use of VHF DSC.
The use of HF DSC.
The use of portable VHF.
The prescribed test of EPIRB, SART and portable VHF radio set must be entered in:
Equipment survey.
Maintenance manual.
Radio equipment manual.
Ship’s radio log.
What are the NAVTEX messages categories which cannot be suppressed?
A, B, D.
A, B, C.
Satnav messages.
Weather forecasts.
A distress-call, onboard via RCC, may only be given Receipt if:
The manager orders.
OSC from the RCC concerned invites the vessels.
The OOW deems it necessary.
The captain orders.
The DSC-controller display the following: DOO: 244562000 CH16; S distress sinking. After receiving this DSC message the following is done immediately:
Give a “DSC-acknowledgement”.
Listen out on VHF channel 16.
Call the Chief officer.
Send a “distress alert relay”.
What are the NAVTEX messages categories which cannot be suppressed?
Satnav messages.
A, B, C.
Weather forecasts.
A, B, D.
What is the two letter signal, to be used by flags, radiotelephony or radiotelegraphy, meaning “Calling All Ships”?
AS.
CA.
CQ.
TT.
The “clarifier” has only effect during:
Receiving in mode J3E.
Transmitting in mode J3E.
Transmitting in mode H3E.
Receiving in mode H3E.
A distress alert sent by Inmarsat to an RCC is sent via:
LES.
The managers office.
LUT.
NCS.
When sending an OBS (weather report) with Inmarsat one should use Service Code “41”. With this address the weather report will always be transmitted to:
The meteorological office of the ship’s flag state.
MET office Washington, this office will take care of further dispatch of the weather reports.
The meteorological station connected with the CES used.
KNMI in Holland.
What is the acronym FR 01?
MSI.
AAIC.
Call sign.
MMSI.
The battery of an EPIRB should be changed:
Every 3 years.
Yearly.
Every 2 years.
Every 4 years.
An area within the radiotelephone coverage of at least one VHF coast station in which continuous DSC alerting is available is called:
ASN1.
A1.
Coastal area.
A2.
Which of the following frequencies is used by the NAVTEX system?
121,5 MHz.
156,8 MHz.
2 182 kHz.
518 kHz.
When a character in the NAVTEX message sent is not received in the proper way:
A closely resembling character will be printed.
The message will not be printed at all until, with repeated transmission, it can be automatically compared and corrected.
Nothing or a special character will be printed.
Any other character will be printed.
An area within the radiotelephone coverage of at least one VHF coast station in which continuous DSC alerting is available is called:
ASN1.
Coastal area.
A1.
A2.
The whip-antenna of the MF transceiver was lost in bad weather. The MF transceiver can be used again:
If the whip-antenna is replaced by an antenna of about the same length as the original one.
If instead of the whip-antenna, another whip-antenna such as the spare VHF antenna is connected.
Only if the whip-antenna is replaced by another whip-antenna of the same length.
If the whip-antenna is replaced by a Sat-C antenna.
Which class of emission is used for VHF radio telephony transmissions?
J2B.
H3E.
G3E.
G2B.
Of the AM-signal:
Amplitude is variable and frequency of the carrier wave is constant.
Both amplitude and frequency of the carrier wave are variable.
Is not dependant on the frequency and amplitude.
Amplitude and frequency of the carrier wave are constant.
Moored in a harbour, transmitting with a mariphone is:
Allowed in emergency only.
Allowed in consultation with harbour master.
Always allowed.
Not allowed.
When a satellite receives a “distress alert” from a Cospas-Sarsat EPIRB, the relay of the “distress alert” can be delayed because the satellite cannot immediately contact a:
LES before the satellite is actually seen by this ground station.
Coast station.
LUT before the satellite is actually seen by this ground station.
NCS before the satellite is actually seen by this ground station.
Via a coast-station radio medical advice is asked using NBDP. What command has to be given after ga +?
Medical.
med +.
pan +.
38 +.
A satellite receives the transmissions of the 406 MHz Cospas-Sarsat EPIRB. The transmissions of the EPIRB will be:
Always passed on to a LUT.
Exclusively passed on to a LUT only between 70° N and 70° S.
Exclusively passed on to a LUT if the satellite sees both the EPIRB and the LUT.
Passed when the satellite in passing the equator.
Which type of call will be sent by a ship adrift and needing the assistance of a tug? The weather is not bad and the ship will be aground 24 hours later.
Distress relay call.
Distress call.
Safety call.
Urgent call.
Via Inmarsat-C a message is sent to an Inmarsat-C mailbox with a positive delivery notification (PDN). The ground station will:
Send a PDN, if the message has arrived in the mailbox.
Not send any PDN for this message.
send no PDN’s with messages intended for the mailbox.
Send a PDN, as soon as the message is collected from the mailbox.
The exact position of a 406 MHz COSPAS SARSAT EPIRB is eventually calculated by:
LUT.
The satellite.
Ship Manager.
The EPIRB.
The frequency 121,5 MHz is used for:
SART transponder.
DSS VHF calls.
SARSAT-COSPAS EPIRBS.
INMARSAT E EPIRBS.
Your vessel is not in distress and not taking part in a distress operation. How would you impose radio silence on vessels which are interfering the distress traffic?
Seelonce Pan.
Seelonce Distress.
Seelonce Mayday.
Seelonce Securite.
Give the command after ga + for the transmission of a “store and forward”-message with radio-telex:
tlxstf.
sta…+.
stf…+.
tlx..+.
With an Inmarsat-C installation there is the addressing-option “special”. Via this option:
You can send a message by express delivery.
You can deliver a message via a special telegram.
Give one of Inmarsat’s “special access codes”.
You can plan a message to be delivered at a special time.
An EPIRB has been activated accidentally. Which of the following is correct for cancelling the false distress alert?
Call the nearest coast station and inform it that a false distress alert has been transmitted.
Send a distress priority VHF DSC call and make broadcast to all stations.
Make broadcast to all stations on VHF 16.
Call a LUT and inform it.
By the degree of selectivity of a receiver is meant:
Ability to receive all signals.
Ability to prevent variations in the strength of radio frequency signal received.
Ability to make weak stations audible.
Ability to distinguish weak stations from adjacent stronger stations.
The prescribed test of an approved portable VHF radio set (portophone) must be done once a:
Month.
Year.
Week.
Quarter.
On board one can use the reflections in the ionosphere by the right choice of:
The length of the aerial.
The time of transmission.
The type of equipment.
The mode of transmission.
If a coast-station doesn’t answer a call on VHF working channel or doesn’t send a reply signal:
You can repeat your call immediately when convinced that no other radio traffic is interfered with.
You can repeat your call after 2 minutes.
You must call on another working channel.
You must call on distress channel.
What does the abbreviation DSC means?
Distress and safety call.
Distress Selective Call.
Digital Selective Call.
Digital Safety Call.
What mode must be used on the MF/HF transmission when making a radiotelephone call?
J3E.
H3E.
F1B/J2B.
G3E.
What do you understand by the initials EPIRB?
This means: Emergency Plotting Indicator Response Beacon.
This means: Emergency Position Indicating Radio Beacon.
This means: Emergency Personal Indicator Rescue Beacon.
This means: Emergency Plotting Indicator Rescue Beacon.
With an EPIRB:
You must check the working of the charger and check the loaded condition of the battery.
You must check the date the battery must be replaced.
You must check the manufacturer of the battery.
You must check if it is attached properly to a railing with the required line.
According to the rules of GMDSS vessels are equipped with certain radio-communication devices depending on:
Type of vessel.
Their tonnage.
The trading sea areas.
Flag state.
The safety message announces that a station:
Is going to be under repairs.
Is in serious and imminent danger and needs immediate assistance.
Will relay a message concerning an important navigational or meteorological warning.
Has an very urgent message concerning the safety of a vessel, a plane or another means of conveyance.
You receive a distress alert on HF Radio. What should you do?
Acknowledge receipt.
Wait three minutes and if no acknowledgement is heard from a coast station you should relay the alert.
Relay the message immediately on 2 182 kHz.
No response is necessary providing the vessel is more than 24 hours away.
The number of oscillations of a wave per seconds is called:
Class of emission.
Wavelength.
Period.
Frequency.
What is the first function of GMDSS?
Transmission and reception of on scene communication.
Transmission of ship to shore alerts.
Reception of shore to ship distress alerts.
Transmission and reception of signals for locating.
How are the NAVTEX areas identified?
By two letters.
By one letter.
By one letter and one digit.
By one digit.
On area A3 the function “Transmission and reception of signals for locating” is mainly based on:
The use of SART transponders.
The use of SARSAT COSPAS Epirbs.
The use of MF DSC.
The use of HF DSC.
At what minimum height above sea level a SART transponder must be mounted?
0,5 metre.
1 metre.
The good working of a SART transponder doesn’t depend on the height above sea level.
2 metres.
Which of the following frequency bands would most likely provide reliable communication between two stations that are 15 miles apart?
The Very High Frequency (VHF) band.
The Medium Frequency (MF) band.
The High Frequency (HF) band.
The Low Frequency (LF) band.
MF communication is usually provided by:
None of the mentioned.
Sky wave.
Space wave.
Ground wave.
The word NAVTEX is spelled conform the international phonetic alphabet:
November, Apple, Victoria, Tango, Echo, X-mas.
November, Able, Valencia, Tripoli, Echo, Xantippe.
November, Alfa, Victor, Tango, Echo, X-ray.
November, Anna, Victor, Tango, Eduard, X-ray.
VHF channel 15 is:
Public traffic channel.
Contra-ship channel.
Distress channel.
Inter-ship channel.
Of the AM-signal:
Amplitude and frequency of the carrier wave are constant.
Both amplitude and frequency of the carrier wave are variable.
Is not dependent on the frequency and amplitude.
Amplitude is variable and frequency of the carrier wave is constant.
The typical “daylight-frequencies” for long distance transmission are located in the:
VHF-band.
16 or 22 MHz-band.
4 or 6 MHz-band.
8 or 12 MHz-band.
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