单选题What is placed on the underside of an inflatable liferaft to help prevent it from being skidded by the wind or overturned? （）ABallast bagsBA keelCStrikesDSea anchor
单选题
What is placed on the underside of an inflatable liferaft to help prevent it from being skidded by the wind or overturned? （）
A
Ballast bags
B
A keel
C
Strikes
D
Sea anchor
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What is placed on the underside of an inflatable liferaft to help prevent it from being skidded by the wind or overturned?A.Ballast bagsB.A keelC.StrikesD.Sea anchor
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单选题Which operation should be done when launching an inflatable liferaft by hand?（）AOpen the liferaft casingBTurn the valve on the CO2 cylinder to start inflationCMake sure the operating cord is secured to the vessel before throwing it over the sideDAfter inflation，detach operating cord from liferaft
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单选题You board an inflatable liferaft that has been hand launched from a sinking vessel. What should you do first after everyone is onboard the liferaft?（）.ACut the painterBOperate the radio equipmentCOpen the equipment packDVentilate the liferaft of CO2
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单选题If the hydrostatic release mechanism for an inflatable liferaft is not periodically serviced and becomes inoperative，it will NOT（）.Aset the water lights on immersionBrelease the dye-marker from the liferaftCfree the liferaft from the vesselDbreak the seal on the carbon dioxide cylinder
单选题What must be carried out in order to launch and inflate an inflatable liferaft? （）APull on the hydrostatic release，pull on the sea painterBPush on the hydrostatic release，pull on the sea painterCPush on the hydrostatic release，push on the sea painterDPull on the hydrostatic release，push on the sea painter
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