1. What are the primary functions of a Boeing 747’s hydraulic system?Answer: The hydraulic system powers essential components like the landing gear, flight control surfaces, and braking systems.
2. Why is it important to replace seals in hydraulic systems during repair, even if the primary issue is a leaking hydraulic line?
Answer: Seals may also degrade over time, leading to potential future leaks. Replacing them ensures the system remains leak-free and operational.
3. During troubleshooting, why is it essential to use diagnostic tools like multimeters or oscilloscopes?
Answer: These tools help technicians accurately measure electrical signals, such as voltage, current, or continuity, which aids in identifying faults like poor connections or short circuits.
4. What is non-destructive testing (NDT), and why is it used during the overhaul of structural components?
Answer: NDT involves inspecting materials for defects without causing damage. Techniques like ultrasonic and eddy current testing are used to detect internal flaws like corrosion or cracks.