AAAI ISMA Spin Certification Practice Test

Lockout/Tagout is all about controlling hazardous energy so a machine can’t start up or release stored energy while someone is working on it. In spin equipment, there are multiple energy sources—electric power to drive the motor, compressed air or hydraulics, and even stored kinetic or spring energy in components. When maintenance or servicing is happening, any accidental energizing or sudden release could cause serious injury. By isolating every energy source and applying a lock (to prevent re-energizing) and a tag (to warn others that work is in progress), workers are protected throughout the service. Before work begins, the correct steps are taken to de-energize the machine, secure the energy controls with locks, attach a clear warning tag, and verify that no residual energy remains. Only after the area is confirmed safe does maintenance proceed, and the equipment is only re-energized after all work is finished and tools and personnel are clear. This focus on preventing unexpected startup or energy release is why Lockout/Tagout is the essential approach here.