Recurrent Period A Flashcards
Pneumatics - Direct: What is the primary function of the 787’s environmental control system?
To provide cabin pressurization and air conditioning using electrically driven cabin air compressors.
Pneumatics - Direct: How is cabin pressurization achieved on the 787?
By using electrically driven cabin air compressors to supply conditioned air.
Pneumatics - Direct: What is one key advantage of using electrically driven cabin air compressors on the 787?
They reduce engine bleed air usage, improving fuel efficiency.
Pneumatics - Fill: The 787 uses ___-driven cabin air compressors for pressurization and air conditioning.
__electrical__
Pneumatics - Fill: Cabin pressurization on the 787 is achieved via ___ compressors.
__electrically driven__
Pneumatics - Fill: The environmental control system on the 787 supplies conditioned air using ___ compressors.
__electrical__
Pneumatics - MC: Which of the following is the method used by the 787 for cabin pressurization? (A) Engine bleed air, (B) Hydraulic pressurization, (C) Electrically driven cabin air compressors, (D) Manual operation
Answer: C) Electrically driven cabin air compressors
Pneumatics - MC: What is a primary benefit of using electrically driven cabin air compressors on the 787? (A) Increased noise, (B) Reduced engine bleed, (C) Higher fuel consumption, (D) More maintenance
Answer: B) Reduced engine bleed
Pneumatics - MC: The 787’s environmental control system relies on: (A) Bleed air from the engines, (B) Electrically driven compressors, (C) Solar power, (D) Manual operation
Answer: B) Electrically driven compressors
Pneumatics - TF: True or False: The 787 uses engine bleed air for cabin pressurization.
False
Pneumatics - TF: True or False: Electrically driven cabin air compressors supply the 787’s air conditioning.
True
Pneumatics - TF: True or False: The 787’s environmental control system increases fuel consumption by using engine bleed air.
False
Electrical - Direct: What are the primary sources of electrical power on the 787?
Engine-driven generators and the APU.
Electrical - Direct: Which component provides backup electrical power on the 787?
The APU.
Electrical - Direct: What is a key function of the 787’s electrical system?
To supply power to avionics and other critical systems.
Electrical - Fill: The 787’s electrical power is mainly generated by the ___ and the ___.
__engine-driven generators__; __APU__
Electrical - Fill: Primary electrical systems on the 787 supply power for ___, navigation, and communications.
__avionics__
Electrical - Fill: The electrical system is critical for powering ___ and instruments.
__avionics__
Electrical - MC: Which of the following is a key function of the electrical system? (A) Cabin pressurization, (B) Avionics power, (C) Fuel delivery, (D) Hydraulic actuation
Answer: B) Avionics power
Electrical - MC: The 787 electrical system primarily operates at: (A) 115V DC, (B) 270V AC, (C) 28V DC, (D) 400V AC
Answer: B) 270V AC
Electrical - MC: Which of the following is NOT a source of electrical power on the 787? (A) Engine generators, (B) APU, (C) Fuel pumps, (D) Batteries
Answer: C) Fuel pumps
Electrical - TF: True or False: The 787’s electrical system operates at 270V AC.
True
Electrical - TF: True or False: The APU is a backup source of electrical power on the 787.
True
Electrical - TF: True or False: The 787’s electrical power is solely provided by the engines.
False
APU - Direct: What is the primary purpose of the APU on the 787?
To provide electrical power on the ground and serve as a backup in flight.
APU - Direct: How does the APU support engine start on the 787?
By providing electrical power for the engine start process.
APU - Direct: Besides supplying electrical power, what is one function of the APU on the ground?
It enables the use of systems such as cabin air conditioning.
APU - Fill: The primary role of the APU on the 787 is to provide ___ power for aircraft systems.
__electrical__
APU - Fill: On the ground, the APU supplies electrical power that enables the use of ___ systems.
__cabin air conditioning__
APU - Fill: The 787’s APU is used solely for ___ power.
__electrical__
APU - MC: Which of the following is NOT a function of the 787’s APU? (A) Providing electrical power, (B) Acting as a backup power source, (C) Directly cooling the aircraft, (D) Supporting engine start using electrical power
Answer: C) Directly cooling the aircraft
APU - MC: The primary role of the APU on the 787 is to: (A) Provide bleed air for engine start, (B) Supply electrical power on the ground, (C) Directly cool the cabin, (D) Power hydraulic systems
Answer: B) Supply electrical power on the ground
APU - MC: Which statement best describes the APU function on the 787? (A) It provides both electrical power and direct cooling, (B) It provides electrical power and acts as backup, (C) It is used solely for engine start, (D) It provides bleed air for pressurization
Answer: B) It provides electrical power and acts as backup
APU - TF: True or False: The 787’s APU directly cools the aircraft during ground operations.
False
APU - TF: True or False: The 787’s APU is used solely for providing electrical power and backup.
True
APU - TF: True or False: The APU on the 787 provides bleed air for engine start.
False
Fuel - Direct: What is one primary function of the 787 fuel system?
To store and safely deliver fuel to the engines.
Fuel - Direct: What is a key responsibility of the 787 fuel system?
Monitoring fuel quantity and ensuring proper delivery.
Fuel - Direct: How does the fuel system contribute to engine performance on the 787?
By providing regulated fuel flow to the engines.
Fuel - Fill: The fuel system is responsible for storing fuel and ensuring its ___ to the engines.
__delivery__
Fuel - Fill: One function of the fuel system is to monitor fuel ___ and quality.
__quantity__
Fuel - Fill: The 787 fuel system includes components such as ___ tanks and fuel pumps.
__fuel__
Fuel - MC: Which of the following is a component of the 787 fuel system? (A) Fuel tanks, (B) Bleed air valves, (C) Cabin compressors, (D) Hydraulic pumps
Answer: A) Fuel tanks
Fuel - MC: The primary function of the fuel system is to: (A) Store fuel, (B) Deliver fuel to engines, (C) Both A and B, (D) Monitor cabin pressure
Answer: C) Both A and B
Fuel - MC: What does the fuel system monitor? (A) Fuel quantity, (B) Fuel quality, (C) Fuel flow, (D) All of the above
Answer: D) All of the above
Fuel - TF: True or False: The fuel system is responsible for both fuel storage and delivery.
True
Fuel - TF: True or False: The fuel system does not monitor fuel quality.
False
Fuel - TF: True or False: Fuel tanks are a component of the 787 fuel system.
True
Ice and Rain Protection - Direct: What is the primary purpose of the 787 ice and rain protection system?
To prevent ice accumulation on critical surfaces and ensure safe operation in rain.
Ice and Rain Protection - Direct: How does the ice and rain protection system enhance flight safety?
By reducing the risk of ice buildup and maintaining proper aerodynamic performance.
Ice and Rain Protection - Direct: Besides ice, what weather condition does the system address?
Rain
Ice and Rain Protection - Fill: The ice and rain protection system is designed to prevent ___ accumulation on critical surfaces.
__ice__
Ice and Rain Protection - Fill: The system helps maintain safe flight conditions during ___ weather.
__rain__
Ice and Rain Protection - Fill: Ice detectors on the 787 are used to sense ___ conditions.
__icing__
Ice and Rain Protection - MC: Which sensor is used to detect icing conditions on the 787? (A) Pitot-static sensor, (B) Ice detectors, (C) Weather radar, (D) Engine sensors
Answer: B) Ice detectors
Ice and Rain Protection - MC: The primary purpose of the ice and rain protection system is to: (A) Deice the engines, (B) Prevent ice buildup on surfaces, (C) Improve fuel efficiency, (D) Enhance cabin pressurization
Answer: B) Prevent ice buildup on surfaces
Ice and Rain Protection - MC: When activated, the ice protection system helps ensure: (A) Increased cabin pressure, (B) Reduced aerodynamic drag, (C) Accurate airspeed readings, (D) Optimal engine performance
Answer: B) Reduced aerodynamic drag
Ice and Rain Protection - TF: True or False: The 787’s ice and rain protection system is active only during flight.
False
Ice and Rain Protection - TF: True or False: Ice detectors are used to sense icing conditions on the 787.
True
Ice and Rain Protection - TF: True or False: The primary function of the ice and rain protection system is to prevent ice accumulation.
True