单选题When the derrick is topped, the guy must be （）(放松).Aslacked offBsent awayCsent outDtaken in
单选题
When the derrick is topped, the guy must be （）(放松).
A
slacked off
B
sent away
C
sent out
D
taken in
参考解析
解析：
暂无解析
相关考题：
Navigation lights must be displayed in all weathers from sunset to sunrise. They also _____.A.must be displayed when day signals are being usedB.must be displayed when moored to a pierC.may be extingushed at night on open waters when no other vessels are in the areaD.may be displayed during daylight
In a married falls rig at the after end of a hatch，a boom is rigged in a fore and aft line through its heel．Stresses on the outboard guy will be LEAST if the guy is made fast at a point ______．A.Abreast the heelB.At right angles to the boom when viewed from aboveC.Aft of the heelD.Forward of the spiderband
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
When the inert gas pressure is being ______ in the cargo tanks，particular attention should be paid to obtaining an oxygen concentration．A.topped upB.bracedC.tommed downD.shored
The connected joints of pipe，usually made of three joints of pipe approximately 90 feet long，racked in the derrick when making a trip are called a ______．A.StringB.StandC.JointD.Standpipe
起货机出故障时，水手要去叫电工来修理。（）A、When the windlass is in trouble, the sailor must go and call the electrician to repair it.B、When the derrick is in trouble, the sailor must go and call the electrician to repair it.C、When the winch is in trouble, the sailor must go and call the electrician to repair it.D、When the winch is in trouble, the sailor must go and call the carpenter to repair it.
吊杆停用时，稳索必须要收起来。（）A、When the derrick is stopped, the guy must be stowed.B、When the derrick is stopped, the guy must be topped.C、When the derrick is stopped, the guy must be lowered.D、When the guy is stopped, the derrick must be stowed.
不要随意地移动稳索。（）A、Don’t shift the guy as you like.B、Don’t shift the stay as you like.C、Don’t move the derrick as you like.D、Don’t move the crane as you like.
单选题起货机出故障时，水手要去叫电工来修理。（）AWhen the windlass is in trouble, the sailor must go and call the electrician to repair it.BWhen the derrick is in trouble, the sailor must go and call the electrician to repair it.CWhen the winch is in trouble, the sailor must go and call the electrician to repair it.DWhen the winch is in trouble, the sailor must go and call the carpenter to repair it.
单选题The connected joints of pipe，usually made of three joints of pipe approximately 90 feet long，racked in the derrick when making a trip are called a（）.AstringBstandCjointDstandpipe
单选题When the union purchase derrick is operated, one derrick is positioned over the quayside and the other almost vertically over the （）.AdockBholdCpedestalDmachinery space
单选题When the derrick changes its （）(角度), its lifting capacity changes correspondingly.AangelBlengthCheightDangle
单选题The most critical part of the bunkering operations, which can result in an oil spill, is when the （）Ahose joints are made upBtanks are being topped offCsystem is being lined upDpumping operation is first started
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Before the operation of the derrick, check all （）(索具)closely and everything must be in good condition.AblocksBgoosenecksCtackleDguys
单选题In a married falls rig at the after end of a hatch，a boom is rigged in a fore and aft line through its heel.Stresses on the outboard guy will be LEAST if the guy is made fast at a point（）.AAbreast the heelBAt right angles to the boom when viewed from aboveCAft of the heelDForward of the spiderband
单选题In a married falls rig at the after end of a hatch , a boom is rigged in a fore and aft line through its heel . Stresses on the outboard guy will be least if the guy is made fast at a point（）.Aabreast the heelBat right angles to the boom when viewed from aboveCaft of the heelDforward of the spiderband
单选题吊杆停用时，稳索必须要收起来。（）AWhen the derrick is stopped, the guy must be stowed.BWhen the derrick is stopped, the guy must be topped.CWhen the derrick is stopped, the guy must be lowered.DWhen the guy is stopped, the derrick must be stowed.