题目内容

The satellite communication requirements of chapter _________ of the 1974 SOLAS Convention can be met, either wholly or in part, by INMARSAT MESs capable of two-way communications.

A. V
B. III
C. IV
D. II

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The proper operation of the DSC facilities shall be tested by means of a test call, when within communication range coast station fitted with DSC equipment, what is the period?

A. weekly
B. Annually
C. Daily
D. Monthly

It is possible for ships to receive safety message transmitted by Navtex station _________.

A. in any INMARSAT regions
B. in each NAVAREA
C. at any distance
D. in Areas A3 and A4

What is the approximate range of VHF radio waves propagation?

A. 300 nautical miles
B. 30-50 nautical miles
C. 200 nautical miles
D. 400 nautical miles

_________ belongs to satellite system to promulgate Maritime Safety Information.

AMVER.
B. NAVTEX.
C. SafetyNET.
D. Inmarsat-M SES