hệ thống tàu bay ( đề mới )

At 33,000 feet, how much available oxygen is there compared to sea level

• About half

• The same as sea level

• Twice as much as sea level

• About one quarter

If an electronic ice detector senses ice buildup in AUTO mode, what action does it perform

• It adjusts the wing slats to reduce ice buildup

• It automatically activates the thermal anti-ice systems

• It sprays rain repellent fluid on the windshield

• It shuts down the aircraft engines

What is the primary function of the pneumatic system on an aircraft, according to the ATA 36 training manual

• To provide hydraulic power for landing gear

• To cool electrical components

• To actuate flight control surfaces

• To supply air for engine starting and cabin pressurization

How should a technician adjust the wiper blade pressure to ensure proper windshield wiper performance

• Set it to maximum pressure to ensure contact

• Disable the wiper motor to prevent overuse

• Adjust it within limits to balance contact and prevent damage

• Keep it low to avoid scratching the windshield

What is the primary function of the fan air valve in the pneumatic system

• To control cooling air mass for the precooler

• To regulate bleed air pressure

• To isolate wing ducts

• To monitor bleed air temperature

What is the advantage of an indirect hydraulic steering system in large jet aircraft

• Reduces aircraft weight

• Requires less maintenance than direct systems

• Enables steering without relying solely on pilot input

• Eliminates the need for a steering control valve

What is the primary purpose of the oxygen system on an aircraft

• To cool electronic equipment in the avionics bay

• To increase cabin pressure to maintain temperature

• To supply oxygen to crew and passengers at high altitudes

• To reduce aerodynamic drag during flight

Why might passengers experience difficulty concentrating at 20,000 feet if cabin pressure is lost

• Dry air causes dehydration

• Low temperatures cause brain muscle contraction

• Low pressure causes excessive heart rate

• Oxygen deficiency reduces blood flow to the brain

What could happen if the manual shut-off valve in a lavatory is not closed during a leak

• The vacuum system will activate

• The waste tank will overflow

• The water heater will overheat

• Water will continue to flow into the lavatory

What is the purpose of the cross-bleed manifold in the pneumatic system

• To connect left and right wing pneumatic ducts

• To cool bleed air

• To filter moisture from pneumatic air

• To regulate APU bleed air pressure