Which of the following is NOT a PDI for the PBE?

The question asks for an item that is not a Pre-Deployment Inspection (PDI) for the Portable Breathing Equipment (PBE).

A critical component of a PBE inspection involves verifying various aspects that ensure the equipment is in proper working condition. The correct answer indicates that the pressure gauge reading is not typically one of the items checked during a PDI for the PBE. This is because the primary concerns during a PDI involve visual and physical checks such as the integrity of the storage case, the condition of the indicator, and ensuring that the stowage and quantity are appropriate.

In contrast, checking the green storage case's integrity confirms that the equipment is adequately protected from damage. The condition of the indicator, which must be blue, is essential because it signifies that the PBE is ready for use; a pink indicator would indicate that the equipment is not in an operational state. Moreover, verifying the stowage and quantity ensures that there are enough units available and that they are properly stored for effective deployment.

So, focusing on the crucial aspects of functionality, the pressure gauge is not part of the standard PDI checklist for PBE, establishing why it is the correct choice in this context.