航海英语(甲类船长)海上通信单选题练习1

Channel 13（156．65 MHz），the designated bridge-to-bridge channel，may NOT be used to ______．

______ will be broadcast every one hour on VHF Channel 6．

The control of distress traffic is the responsibility of _____．

______ the jumbo everything is ready for loading．

You are signing on a deck officer，who will be designated as one of the GMDSS operators，before sailing foreign．Which statement is TRUE ________．

Which statement is TRUE ________．

Which statement concerning satellite EPIRBs is TRUE ________．

Which statement is generally correct regarding the maintenance requirements for ships under GMDSS ________．

Which statement is TRUE ________．

Which statement concerning locating signals in the GMDSS is FALSE ________．

Which statement concerning reserve sources of energy for GMDSS is FALSE ________．

Which statement concerning GMDSS Radio Operator requirements is FALSE ________．

Which maintenance functions can a GMDSS Radio Operator perform ________．

Which message categories cannot be disabled by the GMDSS radio operator ________．

What is meant by the term“radio silence”________．

You are monitoring VHF Channel 16 when you receive a call to your vessel，TEXAS PRIDE．What is the proper way to answer this call ________．

Which device provides the main means in the GMDSS for locating ships in distress or their survival craft ________．

Which categories of NAVTEX messages may not be selectively rejected through receiver programming ________．

Which frequencies and modes are allocated for distress alerting in GMDSS ________．

Which action should be taken on receipt of a GMDSS distress alert ________．

Where should the GMDSS radio log be kept on board ship ________．

When the GMDSS Radio Operator on watch hears“SECURITE”spoken three times he can expect to receive a message concerning ______．

What publications should a GMDSS Operator consult regarding the proper set-up and operation of vessel equipment ________．

What are the vessel equipment and personnel requirements for GMDSS ________．

What is the action that a GMDSS Radio Operator should take when a DSC distress alert is received ________．

What is the most appropriate action for a GMDSS radio operator to take in a distress situation where immediate help is needed，but the vessel is not sinking nor needs to be abandoned ________．

The Consol navigation system，used in Russian and Northern European waters，can be used ______．

The data travels from the ______ to the INMARSAT Network Coordination Station（NCS）and then down to the SES's on ships at sea．

Reliable delivery of messages is ensured by ______ techniques．

The ______ provides the link between the Space Segment and the land-based National/International fixed communications networks．

If a GMDSS radio operator initiates a DSC distress transmission but does not insert a message，what happens ________．

For GMDSS，when may a compulsory vessel not be allowed to leave port ________．

How long must the GMDSS radio log be retained on board ________．

______ operates at a transfer rate of up to 9600 bits per second and is telephone，telex and facsimile（fax）capable．

Each satellite broadcasts ______ traffic on a designated channel．

At sea，all required GMDSS equipment（other than survival craft equipment）must be proven operational by ______．

______ is an area within the radiotelephone coverage of at least one VHF coast station in which continuous Digital Selective Calling is available．

______ is not required by bridge-to-bridge communications．