You are not, I personally know of several Physics Bs degrees working as engineers. In the industry I have been around, engineer is more of a pay class then a job description. There are a lot of different types of engineers Production and Process engineers do a wide range of activities which someone with a BS in Physics can handle nicely. You do need knowledge of the processes or equipment being used. If you have other skills they can make the difference.I had thought Engineering was one of the main areas Physics grads went into, along with Finance, Computing and Medical Research.
Possibly I'm wrong...?