A.Safe working load B.Ship's working lift C.Starboard wing lift D.Stress，weight，load
A.moor a damaged barge to the bank and leave B.remove and deliver a loaded barge from a multiple tow C.remove a barge while locking through D.tow an empty barge astern
A.15 minutes without recharging B.20 minutes without recharging C.25 minutes without recharging D.30 minutes without recharging
A.forming temporary eyes in lines B.joining two lines of equal size C.keeping line from unlaying or fraying D.joining two lines of different size
A.Maritime Safety Information B.Maritime Shipping Index C.Maritime Satellite Indicator D.Mariner Safety Intelligence
A.matching pulse rates of at least 20 stations B.an automatic on-and-off switch C.a horizontal matching of all delayed hyperbolic signals D.automatic signal acquisition and cycle matching
A.deck fitting used to secure mooring lines B.casting fitted at the side of a weather deck，used as a fairlead C.sharp block of wood used to support hygroscopic cargo D.smoke pipe for the galley stove
A.at each frame B.amidships C.one-third the distance from the bow D.one-third the distance from the stern
A.Factor of safety B.Number of wires per strand C.Number of strands per wire rope D.Number of wires in the core
A.used at the earliest opportunity B.hydro-tested C.recharged D.weighed again in one month
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