hệ thống tàu bay ( đề mới ) 2

If the torsion link damper reservoir indicates “refill,” what should the technician do

• Replace the damper body

• Check the downlock actuator

• Refill the damper with hydraulic fluid until pressure is reached

• Adjust nitrogen pressure in the shock strut

Wing Anti Ice can be tested on ground for maintenance for:

• 30 minutes

• 3 minutes

• 30 seconds after this time it automatically stops to prevent damage to wing leading edge

How is the potable water system pressurized when bleed air is unavailable

• By a hydraulic system

• By gravity flow

• By a manual pump

• By an electrical air compressor

Why do jet aircraft use nose landing gear instead of tailwheels

• To increase load on the main wheels

• To ensure directional stability during takeoff and landing

• To simplify gear retraction mechanism

• To reduce aircraft weight

When aircraft on ground, which air source is used for pneumatic system?

• APU Source

• External Air Source

• Both of them

If a flight crew oxygen mask does not supply oxygen when removed from its storage box, what should be checked

• Pressure gauge in the flight deck

• Supply valve inside the storage box

• Thermal compensator regulator

• Safety disk on the oxygen cylinder

If shock strut pressure is too high during servicing, what should the technician do

• Add hydraulic fluid

• Replace the laminar flow orifice

• Adjust the downlock spring

• Bleed nitrogen until the pressure matches the maintenance chart

During a preflight check, a technician switches on the wing anti-ice system on the ground. What happens to the valves

• They remain open as long as the switch is on.

• They lock in the closed position permanently

• They open briefly to check operation and then close

• They divert hot air to the windshield

If a technician finds oil on tools while working on the oxygen system, what should they do

• Clean the tools to remove the oil before use

• Continue using the tools but reduce oxygen pressure

• Replace the oxygen cylinder to avoid contamination

• Ignore it, as oil does not affect the oxygen system

What is the consequence of using the wrong hydraulic fluid in a shock strut

• Nitrogen pressure increases

• Seals may be damaged, causing leaks

• The strut functions normally without issues

• Torsion links become misaligned