A.close B.open C.switch off D.switch on
A.prevent chain from clinging to the wildcat B.clean the marine debris from the chain C.flake chain from a boat's chain locker D.clean chain prior to an x-ray inspection
A.Channel 6 DSC B.Channel 6 Radiotelephony C.Channel 13 Radiotelephony and channel 16 DSC D.Channel 70 DSC
A.only after two hours in the water B.only after four hours in the water C.before entry into the water D.upon entry into the water
A.slip B.sidewise force C.rotational force D.thrust
