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Maison Tests en ligne Test for Officers onboard about Radio Communication (GMDSS) (CES v6.0)
Tests en ligne : Test for Officers onboard about Radio Communication (GMDSS) (CES v6.0)
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Commentaires 1
Le test comprend 80 questions aléatoires.
Total de questions sur ce sujet : 198
Total de questions sur ce sujet : 198
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What do you do after receiving a VHF DSC DISTRESS call?
You set watch on VHF channel 16.
You set watch on channel 13.
You send immediately a DSC DISTRESS ACKNOWLEDGEMENT call.
You send immediately a DSC DISTRESS RELAY call.
The number of oscillations of a wave per seconds is called:
Class of emission.
Wavelength.
Period.
Frequency.
All designated SAR aircraft and civil aircraft carry equipment operating on the international aeronautical distress frequencies (amplitude modulation). The aeronautical distress frequencies are:
123,8 MHz and/or 247,6 MHz.
243,1 MHz and/or 486,2 MHz.
127,8 MHz and/or 71,6 MHz.
121,5 MHz and/or 243,0 MHz.
Which equipment will detect a signal from a SART transponder?
S band radar.
DSC receiver.
X band radar.
Radio Direction Finder.
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.
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 number of oscillations of a wave per seconds is called:
Frequency.
Wavelength.
Period.
Class of emission.
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.
Under GMDSS rules the trading area A1 can be considered to be:
Within range of VHF coast radio stations.
Within the coverage of Inmarsat.
Within range of MF coast radio stations.
Polar region.
Which of the following services is not provided by Inmarsat-C?
Telex.
Telephone.
Fleetnet.
Safetynet.
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.
What is SITREP an abbreviation for:
Situation Report.
Ship Transmit Emergency Radio.
Survivor Indication Transponder Equipment.
Ship Indication Transmission Equipment.
The frequency 121,5 MHz is used for:
SART transponder.
DSS VHF calls.
SARSAT-COSPAS EPIRBS.
INMARSAT E EPIRBS.
Which class of emission is used for VHF radio telephony transmissions?
J2B.
H3E.
G3E.
G2B.
A DSC distress alert is received. The message states that communication by radiotelex is prefered. One preferably uses:
JRC mode.
ARQ mode.
SELFEC mode.
FEC mode.
If requested by a coastal radio station to participate in a rescue operation, what is the most important information you may give?
Your position, name, call sign and speed.
Your own cargo owner.
Your crews nationality.
Your destination.
Long distance communication in the HF-bands depends on:
Weather conditions.
Satellites.
Ground wave.
Ionisation layers.
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.
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:
KNMI in Holland.
The meteorological office of the ship’s flag state.
The meteorological station connected with the CES used.
MET office Washington, this office will take care of further dispatch of the weather reports.
Modulation is:
To enhance the side bands in relation to the carrier wave.
Deleting carrier wave.
Blending LF & HF signals.
Detecting frequency.
On area A1 the function “Reception of shore to ship distress alerts” is mainly based on:
The use of MF DSC.
The use of SART transponders.
The use of VHF DSC.
The use of SARSAT COSPAS Epirbs.
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.
Define the class of emission H3E:
Radiotelex and DSC – Frequency shift keying of carrier with error correction.
Radiotelex and DSC – Frequency shift keying of sub-carrier with error correction.
Radiotelephony – Single sideband full carrier.
Radiotelephony – Frequency modulation.
The ID of an Inmarsat-M station on board starts with:
6.
3.
1.
4.
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.
The wavelength of a radio-signal reflected against the F-layer may be:
150 m.
15 m.
1,5 m.
15 cm.
The hydrostatic release of an EPIRB should be changed:
Every 2 years.
Every 4 years.
Yearly.
Every 3 years.
In what HF-band is long distance transmission possible when both stations are located in Darkness?
8 MHz.
16 MHz.
4 MHz.
22 MHz.
The different layers in the ionosphere, important for radio propagation, are effected by:
Direction of the antenna.
The weather conditions.
The distance between the transmitter and the receiver.
The Sun.
Which word will precede a safety message?
PAN PAN.
SECURITY.
SAFETY.
URGENT.
What is the proper term used to describe a coast radio station that primarily handles chargeable ship-to-shore message traffic of a routine nature?
Network Coordination Station.
Mobile Radio Service.
Accounting authority.
Public Correspondence Station.
A distress alert sent by Inmarsat to an RCC is sent via:
LES.
The managers office.
LUT.
NCS.
By frequency is meant:
Time lapse of vibrations.
Number of vibrations.
Number of vibrations per unit of time.
Wave length of a loop.
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.
The effect of reflection of the radio waves in the ionosphere on the range depends on:
The correct adjustment of the dimmer.
The amount of ionisation.
The correct adjustment of the button band width.
The correct adjustment of the clarifier.
To get proper conversation discipline in maritime radio traffic:
Every available VHF-channel should always be used.
Only after permission by captain, to send and/or receive on a VHF-channel pointed out the master.
Communication should be done only as per company’s prescribed schedule.
Only necessary radio conversations are made in a concise and businesslike way.
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.
A wire aerial for an MF/HF-transmitter must be suspended between isolators:
To prevent contact with earth.
To prevent burns when touching the aerial.
To save energy.
To make the way for aerial currents as long as possible.
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.
The transmitting receiving method, when both stations can transmit and receive at the same time is called:
None of the mentioned.
Duplex.
Semi-duplex.
Simplex.
You wish to send an e-mail using the Inmarsat-C installation. The message has to be composed in:
X25.
The 400 protocol.
ASCII.
National language of the LES.
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.
On area A2 the function “Transmission of ship to shore distress alerts” is mainly based on:
The use of INMARSAT Epirbs.
The use of MF DSC.
The use of SARSAT COSPAS Epirbs.
The use of VHF DSC.
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.
What is the acronym FR 01?
MSI.
AAIC.
Call sign.
MMSI.
A SART must be visible on the ship’s radar from a distance of at least:
5 miles.
10 miles.
30 miles.
50 miles.
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”.
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.
How are the NAVTEX areas identified?
By two letters.
By one letter.
By one letter and one digit.
By one digit.
You want to send a DSC-call in connection with a shore telephone-call. You must choose:
Urgency.
Routine.
Distress.
Safety.
The ship-shore HF-telephone-channel 2 228 consists of the frequencies 22 081,0 kHz and 22 777,0 kHz. In case of manual operation, one should tune the receiver on:
22 777,0 kHz.
22 081,0 kHz.
2 228 kHz.
The common receiving frequency for the 22 MHz band.
Inmarsat is short for:
International Maritime Satellite System.
International Maritime Satellite Organisation.
International Maritime Safety Organisation.
Internal Marine Safety Organisation.
The compulsory testing of a prescribed EPIRB is to be done:
Once a week.
Once in 4 years.
Once a month.
Once a year.
For how long time should a “SARSAT COSPAS” epirb be able to operate on its batteries?
48 hours.
96 hours.
12 hours.
24 hours.
Which of the following is a Accounting Authority Identification Code?
227990850.
F1B.
FR01.
2 187,5.
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.
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.
The following information must be given on the SART:
The name of the operator.
Date of replacement of the batteries.
The MMSI number sent.
The date of replacement of the hydrostatic release unit.
The MF/HF-transceiver on board is tuned to the assigned frequency of a station. To make this connection the following mode is used:
J2B.
J3E.
H3E.
G3E.
Which of the following frequencies is used by the NAVTEX system?
121,5 MHz.
156,8 MHz.
2 182 kHz.
518 kHz.
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.
Dish aerials are used with:
None of the mentioned.
Inmarsat-A and -C.
Inmarsat-B and -M.
Inmarsat-C and -M.
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.
What does the abbreviation VHF means?
Very High Frequency.
Visual High Frequency.
Variable Hertz Frequency.
Variable High Frequency.
With maintenance of batteries it is of primary importance that:
The space where the batteries are stored is properly ventilated.
The space is not oily.
There is proper relative humidity in the space where the batteries are stored.
There is an absolute free access to the battery space.
The altitude effect of the reflection of radio waves in the ionosphere on the transmission range also depends on:
The day/night situation.
The equipment used.
The sensitivity of the receiver.
The position of the pre-selector tuning-button.
The correct functioning of a DSC-modem can be checked by means of:
The built-in test facility in the modem.
Tester provided with the equipment.
The obligatory monthly transmission from the RCC’s.
The testing-mode of the ever present VHF-DSC-EPIRB.
The log-in of an Inmarsat-C installation is important:
To inform the NSC that one is available for messages offered.
To keep watch on Sat-C for safety messages.
To inform the LES, that one is available for messages offered.
To inform the addressee, that one is available for messages offered.
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.
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.
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.
Give the command after ga + for the transmission of a “store and forward”-message with radio-telex:
tlxstf.
sta…+.
stf…+.
tlx..+.
What information has to be given to set up a radio telex-connection with a coast-station:
Telex number of the coast station.
FEC followed by the telex country-code of the coast-station.
ARQ followed by the call sign of the coast station.
ARQ followed by the coast-station’s ID-number.
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.
Via a coast-station radio medical advice is asked using NBDP. What command has to be given after ga +?
Medical.
med +.
pan +.
38 +.
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.
The Satellite orbit in the Cospas-Sarsat system is:
Geostationary.
Helio-synchronous.
Polar.
Semi-geostationary.
Sea area A4 is in maritime radio traffic sea area:
Outside the sea areas A1, A2 and A3.
Upto 12 miles of land.
With the exception of sea areas A1, A2 and A3, within the range of Inmarsat-satellites, where continuous alarm is available.
Within VHF-radiotelephony-range of coast station, where continuous DSC-alarm is available.
What mode must be used on the MF/HF transmission when making a radiotelephone call?
J3E.
H3E.
F1B/J2B.
G3E.
On which frequency a ship must maintain a continuous watch when sailing in area A2?
2 182 kHz.
2 187,5 kHz.
8 414,5 kHz.
4 207,5 kHz.
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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16.05.2024
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