Some systems can be unstable but with redundant constraints.
举一反三
- Some systems can be unstable but with redundant constraints. A: 正确 B: 错误
- The following structural system is:[img=204x70]1803b7faee4b92f.jpg[/img] A: Stable without redundant restraint B: Stable with redundant restraint(s) C: Unstable with redundant restraint(s) D: Instantaneously unstable with redundant restraint(s)
- The following structural system is:[img=148x70]1803b7fae44e645.jpg[/img] A: Stable without redundant restraint B: Stable with redundant restraint(s) C: Unstable D: Instantaneously unstable
- The following structural system is:[img=279x167]1803b7fa72c1d55.jpg[/img] A: Stable without redundant restraint B: Instantaneously unstable C: Unstable D: Stable with redundant restraint(s)
- The following structural system is:[img=126x72]1803b7fac49252c.jpg[/img] A: Unstable B: Instantaneously unstable C: Stable without redundant restraint D: Stable with redundant restraint(s)