Intact buoyancy is a term used to describe（）.
1、A spreader bar is used to（）.
A spreader bar is used to（）.Aincrease the lifting capacityBincrease the lifting radiusCprotect the slingsDprotect the upper part of a load
2、A shepherd’s crook is used to（）.
A shepherd’s crook is used to（）.Alower spring buoys into the waterBfind an anchor after the buoy has been lostCtransfer a pennant wire to the anchor handling boatDclean chain as it is hauled into the rig
3、A manometer is used to measure （）.
A manometer is used to measure （）.ApressureBtemperatureCvolumeDspecific gravity
4、A sling psychrometer is used to measur
A sling psychrometer is used to measure（）.Aseawater temperatureBengine temperatureCdry bulb and wet bulb temperaturesDbarometric pressure
A bowline is used to（）.Ajoin lines of equal sizeBform a temporary eye (loop) at the end of a lineCbe a stopperDkeep a line from fraying
6、A “figure eight” knot is used to（）.
A “figure eight” knot is used to（）.Abe a stopperBshorten a lineCjoin lines of equal sizeDkeep a line from passing through a sheave