Which term describes the process of diagnosing the source of a problem and resolving issues within a system or machine?

• A. PPE
• B. Troubleshooting
• C. SOP
• D. Ventilation

Answer: (B)

Troubleshooting is the process of diagnosing the source of a problem and resolving issues within a system or machine. In practice, it means: observe symptoms, identify potential causes, test or inspect components, implement a fix, and verify that the system operates normally again. For flammable-refrigerant refrigeration systems, careful troubleshooting is essential to pinpoint whether the fault is electrical, mechanical, control-related, or a refrigerant issue, all while following safety procedures and mitigating ignition or exposure risks. PPE is personal protective equipment worn to reduce hazard exposure, SOP stands for standard operating procedures that outline how tasks should be done, and ventilation refers to moving air to control fumes; none of these describe the diagnostic and corrective process itself.