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Heim Online-Tests CES Alle Arten von Schiffen 2nd-Off / 3rd-Off Test for Officers onboard about Radio Communication (GMDSS) (CES v6.0)
Online-Test: Test for Officers onboard about Radio Communication (GMDSS) (CES v6.0)
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Gesamtzahl der Fragen zu diesem Thema: 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.
For how long time should a SART transponder be able to operate in the active mode?
6 hours.
8 hours.
96 hours.
24 hours.
What is the emergency frequency on MF (Medium Frequency) radio?
2 182 Hz.
2 617 Hz.
1 616 Hz.
1 718 Hz.
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.
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.
In the traffic list a coast-station indicates that there is a radio telex-message for a vessel. To call for the message one should put in:
After ga + the radio telex-command msg + ?
After ga + ? the radio telex-command msg +.
After ga + the radio telex-command msg +.
After ga + the telex number of the ship.
Distress MF communications should normally be operated:
In G3E mode – on simplex basis.
In J3E mode – on simplex basis.
In J3E mode – on duplex basis.
In G3E mode – on duplex basis.
The impedance of a coax cable for the VHF-set depends on:
The structure dimensions and the material of the coax cable.
The length of the coax cable.
The temperature of the cable.
The way in which the feed line is controlled.
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.
On the MF/HF transmitter-receiver there is a sensitivity control. Another name for this is:
RF-gain.
AF-gain.
AGC-gain.
LF-gain.
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.
The position of a 406 MHz Cospas-Sarsat EPIRB is:
Passed on by the EPIRB to the satellite.
Measured by the “dopler” shift in the signals.
Transmitted by the ship.
Determined by satellites by means of directional aerials.
By reduced transmitting power is meant in VHF a power between:
100 watt.
0,5-1 watt.
6-25 watt.
5-10 watt.
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.
Define the class of emission G3E:
Radiotelex and DSC – Frequency shift keying of carrier with error correction.
Radiotelephony – Phase Modulation.
Radiotelephony – Frequency Modulation.
Radiotelex and DSC – Frequency shift keying of sub-carrier with error correction.
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.
In the Inmarsat Maritime Communications Handbook one can find information about:
Ship’s Inmarsat Id’s.
2 digit code telex services.
Radio telex commands.
Numbers of fax subscribers.
How will you start a cancelling message after you send by mistake a distress call on your VHF DSC equipment?
PAN-PAN – All Stations – This is “SAINT-ROMAIN”.
SECURITE – All Stations – This is “SAINT-ROMAIN”.
All Stations – This is “SAINT-ROMAIN”.
MAYDAY – All Stations – This is “SAINT-ROMAIN”.
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.
What is understood by carrier frequency?
Frequency of the carrier wave.
The frequency of upper side band (UBS).
The frequency actually used by transmitter and receiver.
Frequency of single side band.
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.
A vessel is equipped for all sea areas. In the middle of the Indian Ocean the EGC-receiver appears out of order. Is it still possible to receive MSI-messages?
No.
Yes, with the MF/HF-DSC.
Yes, with VHF DSC.
Yes, with the MF/HF-radio telex.
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.
A battery of 24 Volt supplies during 10 hours a current of 6 ampere. What is the capacity supplied?
60 Ah.
144 Ah.
48 Ah.
240 Ah.
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.
Long distance communication in the HF-bands depends on:
Weather conditions.
Satellites.
Ground wave.
Ionisation layers.
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.
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.
Dish aerials are used with:
Inmarsat-A and -C.
None of the mentioned.
Inmarsat-B and -M.
Inmarsat-C and -M.
The MERSAR is:
A fully automated system for mutual assistance and rescue of persons at sea.
A book for communication regulations at sea.
A book of directions for search and rescue at sea.
A survey of vessels favourably located for possible rescue during SAR operations.
Which wave length applies to a frequency of 2 000 kHz?
1 500 mtr.
15 mtr.
15 000 mtr.
150 mtr.
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.
Inmarsat is short for:
International Maritime Satellite System.
International Maritime Satellite Organisation.
International Maritime Safety Organisation.
Internal Marine Safety Organisation.
Which equipment will detect a signal from a SART transponder?
S band radar.
DSC receiver.
X band radar.
Radio Direction Finder.
DSC uses for automatic identification the MMSI. The identification 002442000 is assigned to:
A coast-station or coast guard-station.
A group of vessels.
A type of vessels.
A vessel.
The type-indication of the radio set is mentioned in:
The equipment appendix.
Registry certificate.
The safety certificate.
The survey of equipment.
Which of the following services is not provided by Inmarsat-C?
Telex.
Telephone.
Fleetnet.
Safetynet.
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.
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.
By the term “Stand by” the operator of a coast-station means that one should:
Give the position of the ship.
Wait on this channel for one hour.
Switch back to the calling channel.
Wait until the coast-station calls again.
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.
With what system is a NAVTEX-message transmitted?
ARQ.
SELFEC.
JRC.
FEC.
Silencing by a station, not in charge of the distress-traffic, is done as follows:
“SEELONCE MAYDAY” followed by the call-sign of the ship in distress.
“SILENCE DISTRESS” followed by call sign of the ship in distress.
“SEELONCE MAYDAY” followed by the silencing station’s call-sign.
“SEELONCE DISTRESS” followed by the silencing station’s call-sign.
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.
A distress alert on board may only be transmitted on explicit order of:
The radio officer.
The captain.
The navigating officer on duty.
The safety officer.
On the MF/HF transmitter-receiver there is a sensitivity control. Another name for this is:
AF-gain.
LF-gain.
RF-gain.
AGC-gain.
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 number of oscillations of a wave per seconds is called:
Frequency.
Wavelength.
Period.
Class of emission.
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.
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 transmitting receiving method, when both stations can transmit and receive at the same time is called:
None of the mentioned.
Duplex.
Semi-duplex.
Simplex.
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.
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.
By FleetNET communication is understood:
An urgent message for all ships in a particular area.
A MSI-message destined for ships in specific geographical area.
A HF-NBDP-message destined for ships in a certain geographical area.
An EGC-message destined for ships with the same group call number.
You want to send a DSC-call in connection with a shore telephone-call. You must choose:
Urgency.
Routine.
Distress.
Safety.
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.
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 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.
What is the acronym FR 01?
MSI.
AAIC.
Call sign.
MMSI.
One can check the functioning of the SART by:
Activating the SART and checking the effect on the radar screen.
Removing it from the holder and turning the SART upside down.
Lowering SART in to the sea.
Activating it by extracting the antenna.
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.
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.
When on HF band a DSC distress alert is received, you have to listen to:
2 182 kHz.
8 414,5 kHz (DSC distress frequency in 8 MHz).
The radio telephony distress frequency in the band in which the DSC distress alert was received.
The radio-telex distress frequency in the band in which the DSC distress alert was received.
Dish aerials are used with:
None of the mentioned.
Inmarsat-A and -C.
Inmarsat-B and -M.
Inmarsat-C and -M.
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.
What is the purpose of the radiotelephony two tone alarm?
Alert COSPAS/SARSAT satellites.
Activate bridge watchkeeping receivers and attract the attention of the person on watch.
Attract the attention of the person on watch.
Activate bridge watchkeeping receivers.
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 “clarifier” has only effect during:
Receiving in mode J3E.
Transmitting in mode J3E.
Transmitting in mode H3E.
Receiving in mode H3E.
What does the abbreviation VHF means?
Very High Frequency.
Visual High Frequency.
Variable Hertz Frequency.
Variable High Frequency.
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 battery of an EPIRB should be changed:
Every 3 years.
Yearly.
Every 2 years.
Every 4 years.
How are the NAVTEX areas identified?
By two letters.
By one letter.
By one letter and one digit.
By one digit.
The frequency 121,5 MHz is used for:
SART transponder.
DSS VHF calls.
SARSAT-COSPAS EPIRBS.
INMARSAT E EPIRBS.
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.
No response is necessary providing the vessel is more than 24 hours away.
Relay the message immediately on 2 182 kHz.
For a DSC-connection (no “distress alert”) with another vessel the following frequencies are used:
TX: 2 187,5 kHz RX: 2 187,5 kHz.
TX: 2 177,0 kHz RX: 2 177,0 kHz.
TX: 2 189,5 kHz RX: 2 189,5 kHz.
TX: 2 187,5 kHz RX: 2 182,0 kHz.
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.
Reflection of radio waves in the ionosphere depends on:
The speed of the waves.
The propagation speed of propagation.
The chosen mode of transmission.
Sunspots.
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.
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.
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...
