單項選擇題
A.DSC B.EPIRB C.EGC D.NBDP
A.Inmarsat SES B.VHF /DSC or MF/DSC C.SART and VHF/DSC D.Satellite EPIRB and VHF /DSC
A.ship in distress and assisting units B.NCS and RCC C.RCCs and “on-scene commander” or “coordinator surface search” D.ship in distress and coast station
A.GMDSS B.EGC C.MSI D.DSC
A.local-mode coverage B.SAR operation C.data process D.continuous broadcast
A.transmit distress signal B.send response signal C.transmit the signal of ship’s position D.be started by X-band radar
A.the main source of energy B.emergency source of electrical power C.the reserve source of energy D.all of above
A.Goonhilly, UK B.Yamaguchi, Japan C.Perth, Australia D.Southbury, USA
A.180E above the equator B.64.5 E over the IOR C.15.5W along the straight line D.55.5W above the equator
A.complicated circumstances B.changeable atmospheric pressure C.large density of traffic D.some strong signals from unwanted satellites
A.besides the polar regions B.including the North Pole and the South Pole C.above 70N and below 70S D.as far north and south 70