单项选择题
During an annual FCC inspection（）.
A.all required documents and publications may have to be produced
B.licensed GMDSS radio operators may be required to demonstrate equipment competencies
C.all required equipment must be fully operational
D.All of the above
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相关考题
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单项选择题
Class C EPIRBs are（）.
A.manually activated and operate on maritime (VHF) channels
B.automatically activated and operate on maritime (VHF) channels
C.manually operated and detected by satellite
D.automatically operated and detected by satellite -
单项选择题
Class A EPIRBs are required on（）.
A.self-propelled，inspected vessels
B.towing vessels
C.recreational vessels
D.uninspected passenger vessels -
单项选择题
CATEGORY A EPIRB’s transmit on frequencies that are monitored by（）.
A.orbiting satellites in space
B.commercial radio stations
C.private，commercial，and military aircraft
D.ordinary radio stations
