What is the purpose of a preflight checklist?

• A. To expedite engine start.
• B. To verify aircraft readiness by systematically inspecting items critical to safe flight before engine start.
• C. To ensure the passengers are comfortable.
• D. To plan in-flight meals.

Answer: (B)

A preflight checklist is about making sure the airplane is ready for flight by systematically checking every item that could affect safety before you start the engine. This process verifies airworthiness and confirms that critical systems—fuel quantity and quality, oil and fluid levels, hydraulics, electrical systems, flight controls and control surfaces, systems like avionics and instruments, emergency equipment, landing gear, tires, brakes, and even weather and weight/balance considerations—are all in proper condition and configuration for safe operation. By going through these checks before engine start, you catch issues early and ensure the aircraft will behave as expected when you power up and depart. This focus on safety and readiness is why choosing verification of aircraft readiness through a systematic preflight inspection before engine start is the best answer. The other options don’t fit: preflight isn’t about expediting engine start, passenger comfort, or in-flight meal planning.