What does PSI stand for?

What does PSI stand for?

• A. Passenger Safety Information
• B. Principal Security Inspector
• C. Personal Security Investigator
• D. Primary Security Inspector

Answer: (B)

PSI stands for Principal Security Inspector. In aviation contexts, “principal” denotes the lead or chief person responsible for enforcing security procedures and ensuring regulatory compliance, so this title conveys authority and oversight. The other phrases describe different concepts—Passenger Safety Information is about information for passengers, Personal Security Investigator implies an investigator focused on individuals, and Primary Security Inspector uses a different rank term that doesn’t match the standard title.

PSI stands for Principal Security Inspector. In aviation contexts, “principal” denotes the lead or chief person responsible for enforcing security procedures and ensuring regulatory compliance, so this title conveys authority and oversight. The other phrases describe different concepts—Passenger Safety Information is about information for passengers, Personal Security Investigator implies an investigator focused on individuals, and Primary Security Inspector uses a different rank term that doesn’t match the standard title.