Who can impose silence on stations which interfere with distress traffic?
A. The Personal Radio Communications Branch of the ITU.
B. A radio operator trying to make a phone patch on company official business.
C. A ship looking for navigational information.
D. The administration concerned or coordinator involved in the handling of the emergency traffic.
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How many total frequencies are available for DSC distress alerting on VHF band?
A. 1
B. 2
C. 5
D. 7
How many frequencies are available for DSC distress alerting on HF band?
A. 1
B. 2
C. 5
D. 7
Which action should the GMDSS operator take in a distress situation when embarking in survival craft?
A. EPIRB and SART switched on manually prior to embarking; remain aboard vessel in distress.
B. Notify RCC (Rescue Coordination Center) through VHF DSC in portable equipment.
C. Switch on EPIRB and SART immediately and leave on.
D. Communicate with Inmarsat-C from survival craft.
Where may survival craft portable VHF radiotelephones be operated?
A. Between survival crafts.
Between survival craft and ship.
C. Between survival craft and rescue unit.
D. All of the above
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