PRE FLIGHT refers to which of the following?

• A. The process of cleaning the cabin after landing
• B. To check, test and prepare for use of an aircraft, engine or other piece of equipment prior to flight
• C. The act of de-icing during flight
• D. The procedure for de-boarding at the gate

Answer: (B)

Preflight is about checking, testing, and preparing equipment and systems before the aircraft takes off. It ensures everything is ready and safe to use, from the aircraft itself to safety gear and cabin readiness, so the crew can operate confidently and passengers can travel safely.

This fits best because it captures the idea of actions taken before flight to verify readiness and functionality. The other items describe tasks that happen after arrival (cleaning), during flight (de-icing midair), or after the flight ends (de-boarding), which are not part of preflight preparation.