单选题 During a____period, as a newly commissioned SES, your IMN will be pasted to the other CESs.

A、 20-hour
B、 12-hour
C、 24-minute
D、 24-hour
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单选题 Test transmissions should be made______

A、daily
B、weekly
C、monthly
D、only when absolutely necessary

单选题 What facilities should be used as far as possible?

A、Short wave transmitter.
B、Artificial aerials.
C、Resistance.
D、VHF antennae.

单选题 Basing on the knowledge in the GMDSS, what should be done to obtain necessary assistance after receiving the acknowledgement?

A、Just awaiting assistance.
B、A distress priority message may be sent advising more detailed information about the distress incident and/or assistance required.
C、Gathering crewmembers at assembly station awaiting helicopters.
D、Contacting the LES with other equipments.

单选题 What does the phrase "be kept to a minimum" mean in this passage?

A、The size of the transceiver.
B、The size of the vessel.
C、The length of the testing message.
D、The testing duration and output power.

单选题 If there is no acknowledgement within 5 minutes, what should the operator do?

A、Continue to acknowledge the acknowledgement.
B、Initiate other alerting procedures,
C、Send a distress priority message advising more detailed information about the distress incident and/or assistance required.
D、Repeat the distress alert.

单选题 Which of the following statements is true?

A、Testing on frequency 2, 187.5 kHz is forbidden.
B、Testing on frequency 156.525 MHz is forbidden.
C、Testing on frequency 5.25 MHz should be avoided as far as possible.
D、Testing on frequency 156.800 MHz is forbidden.

单选题 Which of the following statements is true?

A、The terrestrial communication was a takeout service when GMDSS was established.
B、The terrestrial communication is a contributing part in GMDSS.
C、INMARSAT satellites belong to contracting governments to SOLAS
D、COSPAS-SARSAT does nothing to GMDSS, because it is no mentioned in this passage.

单选题 What does the sentence “The equipment required by ships varies according to the sea area in which they operate” mean?

A、The equipment required by ships will vary voyage to voyage.
B、Equipment installed onboard ships trading in Pacific is different from ships in Atlantic.
C、Equipment installed onboard A1 ships is different from A2 ships.
D、The equipment required by ships will vary GT to GT.