Where does TMDE perform testing and calibration?

• A. In the field only
• B. On site or in a laboratory
• C. In hospital laboratories only
• D. In an aviation maintenance hangar only

Answer: (B)

Testing and calibration of TMDE happens in the environments where maintenance occurs: on site in the field to verify equipment works correctly in real operating conditions, and in a laboratory where controlled conditions and calibrated standards ensure accuracy and traceability. Portable standards let technicians perform quick on-site checks, while formal calibration in a lab provides the higher precision and documented traceability required for certification. Restricting testing to just the field, a hospital lab, or a hangar would miss these two essential settings, so the best fit is on site or in a laboratory.