单项选择题
A.bracing B.battening C.blocking D.shoring
The pillar shape that gives the greatest strength for t...
单项选择题The pillar shape that gives the greatest strength for the least weight is the().
A.octagonal pillar B.H Beam pillar C.I Beam pillar D.circular type pillar
The normal tendency for a loaded tanker is to().A.hogB....
单项选择题The normal tendency for a loaded tanker is to().
A.hog B.sag C.have a permanent list D.be very tender
The maximum theoretical stress that can be developed on...
单项选择题The maximum theoretical stress that can be developed on a guy in a yard and stay rig is limited by the().
A.lifting capacity of the winch B.location of the boom C.position of the guy D.weight of the load