Depending on the type of inspector, they may work unsupervised, or supervised by town/city or state/province governments.
pericles
In some states it's called "red-tagging" the construction project. In effect it means that construction is stopped until the problem is repaired to the satisfaction of the inspector.
In the UK Police Force a Sergeant is supervised by an Inspector. In the British Army a Staff Sergeant is the next rank up.
There are many responsibilities for a civil inspector in road construction. A few are, they must go over all proposed plans and blue print, they physically inspect the construction zone, and review the effects on everything around the construction zone.
they can't opperate much like any machines, cranes, roofing, exavation. I'm not exactly sure what they can do, but they can be on a construction site supervised.
sand and gravel
Check with your local building inspector, the rules vary from county to county.
Leslie Groves, the same person later appointed to supervise the Manhattan Project which built the Atomic Bomb in WW2.
Expeditor is a position that is mostly found in the construction industry where large structures are erected and supervised workers are controlled by the expeditor.
In the fields of architecture and civil engineering, construction is a process that consists of the building or assembling of infrastructure. Far from being a single activity, large scale construction is a feat of human multitasking. Normally, the job is managed by a project manager, and supervised by a construction manager, design engineer, construction engineer or project architect.
Supervised. You spelt it right.
In the ideal case, you should bring the equipment to an inspector other than the person you purchased it from. Otherwise, you should request a warranty from the purchaser to guarantee the quality. This is something that you'll need an inspector for. Generally, there's someone on construction company staff who can do this.