品系（strain）
品系（strain）
相关考题：
The preventer guy，as used on a conventional yard and stay rig，______．A.Is rigged at an angle of 70° to 90° from the guy it assistsB.Takes the strain imposed on the schooner guy when burtoning cargoC.Is rigged when lifting cargo that exceeds the SWL of a single whipD.Should take the strain if the regular guy parts
单选题A wire rope that has been overstrained will show（）.Aa bulge in the wire where the strain occurredBa decrease in diameter where the strain occurredCa kink in the wire where the strain occurredDno visible effects of an overstrain
单选题Once a towline is connected between the towing vessel and the disabled vessel，the towing vessel should（）.Anot exceed bare steerageway during the transitBtake a strain as soon as you can to control the towCcome up to speed very slowly and maintain a safe speedDcome up to speed quickly，then cut back power considerably to ease the strain
单选题The latch of a safety hook（）.Aincreases the strength of the hookBprevents the sling ring from coming out of the hook if the strain is abruptly easedCprevents the sling ring from coming out of the hook if there is a strain on the sling ringDAll of the above
单选题The preventer guy，as used on a conventional yard and stay rig，（）.Ais rigged at an angle of 70°to 90°from the guy it assistsBtakes the strain imposed on the schooner guy when burtoning cargoCis rigged when lifting cargo that exceeds the SWL of a single whipDshould take the strain if the regular guy parts
单选题When checking a mooring line，you should（）.Aensure the bight is not fouled between the ship and the dock by taking up slackBpay out slack smartly and keep free for runningCsecure more turns to hold the line against any strain，then clear the areaDsurge the line so that it maintains a strain without parting