The inspector is required to operate all of the following EXCEPT?

The inspector is required to operate various components of a home to assess their condition and functionality. While shutoff valves are essential for controlling water supply and could be tested during an inspection, operating them is generally not a requirement. Inspectors typically examine shutoff valves visually to determine their condition, but activating each valve could lead to unintended consequences, such as leaks or damage to old plumbing systems.

In contrast, operating a manual garage door, a representative number of windows, and folding attic stairs is standard practice in a home inspection. These actions help the inspector assess the doors and windows for operational difficulties, wear, or damage, as well as to confirm that attic access points function as they should. Hence, the requirement for operating shutoff valves is the exception in this context because it is not a standard practice that is universally enforced.