单项选择题
A.visual examinations B.magnetic particle inspection C.dye penetrant inspection D.x-ray inspection
The American Petroleum Institute recommends magnetic pa...
单项选择题The American Petroleum Institute recommends magnetic particle inspection for（）.
A.anchor chain B.wire rope C.connecting links D.pendant wires
Temporary Certificates of Inspection for offshore drill...
单项选择题Temporary Certificates of Inspection for offshore drilling units are effective until the （）.
A.Operations Manual is approved B.Minerals Management Service approval is issued C.classification society approval is issued D.permanent Certificate of Inspection is issued
Spontaneous ignition can result from（）.A.an unprotected...
单项选择题Spontaneous ignition can result from（）.
A.an unprotected drop-light bulb B.careless disposal or storage of material C.smoking in bed D.worn electrical wires on power tools
