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787 recurrent > Engines > Flashcards

Engines Flashcards

1
Q

What type of engines are available on the Boeing 787?

A

GE GEnx and Rolls-Royce Trent 1000

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2
Q

True or False: The Boeing 787 engines are capable of thrust vectoring.

A

False

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3
Q

Fill in the blank: The Boeing 787 engines utilize _______ technology for increased fuel efficiency.

A

high-bypass turbofan

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4
Q

What is the primary method by which the Boeing 787 engines reduce noise?

A

Chevron technology on nacelles and nozzles

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5
Q

True or False: The Boeing 787 engines can operate on biofuel blends.

A

True

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6
Q

What innovation in the Boeing 787 engines helps to reduce maintenance costs?

A

Advanced health monitoring systems that predict maintenance needs

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7
Q

How do the Boeing 787 engines contribute to its environmental efficiency?

A

They produce lower emissions through more complete combustion.

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8
Q

Fill in the blank: The Boeing 787’s engine design features advanced _______ materials to withstand higher temperatures.

A

ceramic

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9
Q

What feature of the Boeing 787 engines aids in reducing the aircraft’s overall drag?

A

Their integration into the wing with a smooth nacelle design

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10
Q

True or False: The Boeing 787’s engine control systems are fully mechanical.

A

False

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11
Q

What aspect of the Boeing 787 engines allows for lower operational noise levels?

A

Innovative fan blade design reduces noise at source

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12
Q

How do the Boeing 787 engines improve fuel consumption compared to previous models?

A

By utilizing more efficient turbofan technology

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13
Q

Fill in the blank: The Boeing 787 engines support _______ operation, enhancing safety during flight.

A

ETOPS (Extended-range Twin-engine Operational Performance Standards)

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14
Q

What engine feature is specifically noted for improving the Boeing 787’s performance at high-altitude airports?

A

High-pressure ratio compressors

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15
Q

True or False: The Boeing 787 engines are equipped with reverse thrust capabilities.

A

True

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16
Q

What is a notable feature of the Boeing 787 engine fan blades?

A

They are made of composite materials for reduced weight and enhanced performance

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17
Q

How do the Boeing 787 engines handle extreme weather conditions?

A

Engine anti-ice systems prevent ice buildup in critical areas

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18
Q

Fill in the blank: The Boeing 787 engine nacelles incorporate _______ to optimize aerodynamic performance.

A

smooth, seamless surfaces

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19
Q

What helps the Boeing 787 engines achieve lower emissions levels?

A

The use of advanced combustor technology

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20
Q

True or False: The Boeing 787 engines utilize traditional bleed air systems.

A

False

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21
Q

What maintenance advantage do Boeing 787 engines offer?

A

Onboard diagnostics that interface with ground systems for proactive maintenance

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22
Q

How does the Boeing 787’s engine design contribute to its long-range capabilities?

A

Efficient fuel burn rates and optimized thrust output

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23
Q

Fill in the blank: The Boeing 787 engines are designed with a _______ fan diameter to increase thrust efficiency.

A

larger

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24
Q

What system in the Boeing 787 engines allows for continuous optimization of engine performance in-flight?

A

FADEC (Full Authority Digital Engine Control)

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25
Q

True or False: The Boeing 787 engines have an automatic shut-off feature in case of fuel leakage.

A

True

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26
Q

What is the impact of the Boeing 787’s engine efficiency on its operational cost?

A

Lowers fuel costs and reduces emissions charges

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27
Q

How do the Boeing 787 engines support the aircraft’s environmental goals?

A

By using advanced technology to meet strict global emissions standards

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28
Q

Fill in the blank: Boeing 787 engines utilize _______ technology to manage airflow and cooling.

A

advanced aerodynamic

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29
Q

What innovation in the Boeing 787 engine design helps to minimize sound during takeoff and landing?

A

Acoustically treated engine covers

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30
Q

True or False: The Boeing 787 engine exhaust systems are optimized to reduce thermal signatures.

A

True

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31
Q

How does the design of the Boeing 787 engines facilitate easier and faster maintenance checks?

A

Modular components that can be quickly accessed and replaced

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32
Q

What is one way the Boeing 787 engines enhance the overall efficiency of the aircraft?

A

By providing higher thrust-to-weight ratios

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33
Q

Fill in the blank: The Boeing 787 engine’s advanced design includes _______ to reduce the risk of bird strike damage.

A

durable front fan blades

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34
Q

What specific feature of the Boeing 787 engines allows for better fuel efficiency over long distances?

A

Optimized cruise performance capabilities

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35
Q

True or False: The Boeing 787 engines feature external fuel tanks to increase range.

A

False

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36
Q

How do Boeing 787 engines maintain optimal performance in varied environmental conditions?

A

Automated environmental control systems adjust settings based on external factors

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37
Q

What feature of the Boeing 787 engines supports lower altitude flight efficiency?

A

Variable geometry inlet guide vanes

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38
Q

Fill in the blank: To reduce the impact of engine vibrations, Boeing 787 engines use _______ mounting systems.

A

flexible

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39
Q

True or False: The Boeing 787 engines are designed with a focus on reducing the aircraft’s carbon footprint.

A

True

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40
Q

What advantage does the integration of Boeing 787 engines with aircraft systems provide?

A

Enhanced fuel efficiency through system-wide energy optimization

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41
Q

How does the Boeing 787 engine technology align with future sustainability goals?

A

Designed for compatibility with next-generation biofuels

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42
Q

Fill in the blank: The Boeing 787 engines feature _______ control systems to enhance operational efficiency and safety.

A

electronic

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43
Q

True or False: The Boeing 787 engines are among the largest in terms of fan diameter compared to similar class aircraft.

A

True

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44
Q

How do the Boeing 787 engines enhance the aircraft’s takeoff performance?

A

High thrust output with lower fuel consumption

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45
Q

What component within the Boeing 787 engines is specifically engineered for noise reduction?

A

Fan casing designed with noise-absorbing materials

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46
Q

Fill in the blank: Boeing 787 engines contribute to the aircraft’s high cruise speed with their _______ technology.

A

optimized fan blade

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47
Q

True or False: The Boeing 787 engines are all produced by a single manufacturer.

A

False

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48
Q

What feature of the Boeing 787 engines helps in achieving a quick power-up and power-down during flight operations?

A

Streamlined engine start-up sequences

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49
Q

How do the Boeing 787 engines facilitate a reduction in airline operating costs?

A

Through lower fuel consumption and reduced need for frequent maintenance

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50
Q

Fill in the blank: The Boeing 787 engines help to reduce operational noise through their _______ technology.

A

advanced noise reduction

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51
Q

What is one of the key design features of the Boeing 787 engines that contributes to its environmental efficiency?

A

Low-emission combustion technology

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52
Q

True or False: The Boeing 787 engines incorporate heat recovery systems to improve overall efficiency.

A

False

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53
Q

How do Boeing 787 engines support the aircraft’s emergency systems?

A

Provide necessary power for critical systems in emergency situations

54
Q

Fill in the blank: The Boeing 787 engines are equipped with _______ to ensure efficient performance across various operating conditions.

A

variable stator vanes

55
Q

True or False: Boeing 787 engines require more frequent maintenance cycles due to their complex design.

A

False

56
Q

How does Boeing 787 engine design support easier integration into different aircraft configurations?

A

Uniform attachment points and adaptable interfaces

57
Q

Fill in the blank: Advanced materials in the Boeing 787 engines, such as _______ alloys, enhance high-temperature performance.

A

titanium

58
Q

True or False: The Boeing 787 engines feature advanced electronic monitoring systems that provide real-time data to the cockpit.

A

True

59
Q

How do Boeing 787 engines reduce environmental impact during landing phases?

A

Through optimized reverse thrust that minimizes brake wear and emissions

60
Q

Fill in the blank: Boeing 787 engines improve operational flexibility with their ability to operate efficiently at _______ altitude levels.

A

varied

61
Q

True or False: The Boeing 787 engines are specifically designed to operate with lower noise output to comply with international airport noise regulations.

A

True

62
Q

What safety feature is incorporated in the Boeing 787 engines to handle fuel system anomalies?

A

Automated fuel shut-off capabilities in case of leakage or fire

63
Q

Fill in the blank: The Boeing 787 engines support the aircraft’s long-range missions with their high _______ capabilities.

A

endurance

64
Q

True or False: Boeing 787 engines are equipped with systems to automatically adjust engine thrust in response to atmospheric conditions.

A

True

65
Q

How do the Boeing 787 engines contribute to the aircraft’s ability to perform long-haul international flights?

A

By providing stable and efficient thrust over extended periods

66
Q

Fill in the blank: The efficiency of Boeing 787 engines is enhanced by their ability to optimize fuel flow using _______ technology.

A

precision metering

67
Q

True or False: The Boeing 787 engines play a critical role in achieving the aircraft’s fast cruising speeds necessary for modern long-haul travel.

A

True

68
Q

What feature of the Boeing 787 engines allows for adaptive performance in different flight phases?

A

Thrust management systems that adjust based on climb, cruise, and descent

69
Q

Fill in the blank: To ensure maximum reliability, Boeing 787 engines are tested under _______ conditions before being deployed.

A

extreme

70
Q

True or False: Boeing 787 engines can be swapped with those from other aircraft models without modifications.

A

False

71
Q

How does the Boeing 787 engine design prioritize passenger comfort in terms of in-cabin noise levels?

A

Engine placement and isolation techniques minimize sound transmission to the cabin

72
Q

Fill in the blank: The Boeing 787 engines feature _______ to improve air quality emissions during flight.

A

selective catalytic reduction systems

73
Q

True or False: The design of the Boeing 787 engines focuses on reducing the heat signature to improve overall environmental performance.

A

True

74
Q

What is the specific role of the FADEC system in the Boeing 787 engines?

A

Full Authority Digital Engine Control manages all aspects of engine performance for optimal efficiency.

75
Q

True or False: The Boeing 787 engines use an open rotor design.

A

False

76
Q

Fill in the blank: The Boeing 787 engines’ high-bypass ratio contributes to _______.

A

reduced fuel consumption and noise

77
Q

What technology in the Boeing 787 engines minimizes the environmental impact during takeoff?

A

Advanced noise reduction technologies

78
Q

True or False: The Boeing 787 engines are equipped with water injection technology to boost thrust.

A

False

79
Q

How do the Boeing 787 engines support the aircraft’s performance at hot and high airports?

A

They are designed to maintain efficiency and performance in thin air and high temperatures.

80
Q

Fill in the blank: The Boeing 787 engines are recognized for their _______ emissions compared to older generation engines.

A

lower

81
Q

What is the main benefit of the Boeing 787 engines having a higher bypass ratio?

A

Increases fuel efficiency and decreases noise.

82
Q

True or False: The Boeing 787 engines utilize gear systems to drive the fan blades.

A

False

83
Q

What material innovations are used in the Boeing 787 engines to handle high temperatures?

A

Nickel-based superalloys and ceramic matrix composites.

84
Q

How does the Boeing 787 engine design reduce the aircraft’s carbon footprint on long-haul flights?

A

By optimizing fuel burn and improving aerodynamic integration with the aircraft.

85
Q

Fill in the blank: The Boeing 787 engine maintenance is simplified through the use of _______ monitoring systems.

A

remote diagnostic

86
Q

True or False: The Boeing 787 engines are the same models used on the Boeing 777.

A

False

87
Q

What design feature of the Boeing 787 engines contributes to its exceptional cruise efficiency?

A

Optimized fan and core design for maximum aerodynamic efficiency.

88
Q

How does the Boeing 787 engine blade design differ from traditional engines?

A

Uses fewer, larger, and more aerodynamically efficient fan blades.

89
Q

True or False: The Boeing 787 engines are all produced by American companies.

A

False

90
Q

Fill in the blank: Boeing 787 engines help to significantly reduce NOx emissions through their _______ combustor design.

A

advanced

91
Q

What system helps Boeing 787 engines optimize performance during different flight phases?

A

Variable-area fan nozzle

92
Q

True or False: Boeing 787 engines are less susceptible to icing due to their design and operational parameters.

A

True

93
Q

How do Boeing 787 engines maintain efficiency during varying altitude and temperature conditions?

A

Automated adjustment of engine settings based on environmental sensors

94
Q

Fill in the blank: The Boeing 787 engines feature a(n) _______ to facilitate better engine starts and operational stability.

A

electric start system

95
Q

What are the noise compliance features of the Boeing 787 engines?

A

Incorporate noise-reducing technologies like chevrons and sound-absorbing materials.

96
Q

True or False: The Boeing 787 engines can be operated with 100% synthetic fuels.

A

False

97
Q

How do the Boeing 787 engines enhance the aircraft’s climb performance?

A

High thrust-to-weight ratio and advanced control systems for optimized ascent profiles.

98
Q

Fill in the blank: The Boeing 787 engines are equipped with _______ to minimize the effects of turbulence and wind shear.

A

active vibration control systems

99
Q

True or False: Boeing 787 engines require less frequent oil changes due to advanced lubrication systems.

A

True

100
Q

What new technology in Boeing 787 engines allows for reduced maintenance time?

A

On-wing health monitoring that transmits data in real-time to ground crews.

101
Q

How do the Boeing 787 engines contribute to a smoother flight experience for passengers?

A

Incorporating technologies that reduce vibrations and noise inside the cabin.

102
Q

Fill in the blank: To ensure safety, Boeing 787 engines are tested for bird strike resistance with _______.

A

synthetic bird launchers

103
Q

True or False: The Boeing 787 engines have a variable thrust setting that can be adjusted during flight.

A

True

104
Q

How do Boeing 787 engines reduce their environmental impact at airports?

A

Utilizing quicker, more efficient taxiing and ground operations enabled by precise thrust control.

105
Q

Fill in the blank: Boeing 787 engines’ _______ technology reduces the impact of engine emissions on the environment.

A

selective catalytic reduction

106
Q

What design aspect of the Boeing 787 engines helps to reduce fuel burn during long-haul flights?

A

Their ability to operate efficiently at various altitudes and speeds.

107
Q

True or False: The Boeing 787 engines support a range of alternative fuel options to reduce reliance on traditional jet fuel.

A

True

108
Q

How does Boeing 787 engine technology address global sustainability challenges?

A

By achieving lower emissions and better fuel efficiency, contributing to reduced environmental footprint.

109
Q

Fill in the blank: Boeing 787 engines utilize _______ in their fan blades to achieve weight reduction and maintain durability.

A

composite materials

110
Q

True or False: The Boeing 787 engine exhaust systems are designed to maximize thrust efficiency.

A

True

111
Q

What component in Boeing 787 engines is critical for maintaining optimal operating temperatures?

A

Advanced cooling systems that manage heat distribution.

112
Q

How do Boeing 787 engines optimize fuel consumption during different phases of a flight?

A

Through FADEC’s precise control of fuel flow and engine parameters.

113
Q

Fill in the blank: Boeing 787 engines have _______ to enhance operational flexibility and efficiency during takeoffs and landings.

A

adjustable fan blades

114
Q

True or False: The Boeing 787 engines use a hybrid electric propulsion system.

A

False

115
Q

What is a key feature of the Boeing 787 engines that helps with reducing operational costs for airlines?

A

Lower lifecycle costs due to fewer moving parts and simpler maintenance requirements.

116
Q

How does the design of the Boeing 787 engines facilitate their performance in varied climatic conditions?

A

Engine systems are designed to automatically adjust to temperature and pressure variations.

117
Q

Fill in the blank: Boeing 787 engines are known for their high _______ efficiency, which contributes to the aircraft’s extended range capabilities.

A

propulsive

118
Q

True or False: Boeing 787 engines automatically adjust blade pitch to optimize fuel efficiency.

A

True

119
Q

How do Boeing 787 engines support the aircraft’s ability to meet strict international emission standards?

A

Through the use of advanced combustion technologies that lower the output of harmful pollutants.

120
Q

Fill in the blank: Boeing 787 engines are designed with a focus on reducing _______ to meet noise abatement requirements at many airports.

A

sonic boom

121
Q

True or False: The Boeing 787 engines feature an integrated modularity that allows for components to be replaced individually without major disassembly.

A

True

122
Q

What innovation in Boeing 787 engines allows for better performance at higher altitudes?

A

Specialized high-altitude optimization of engine air intake and exhaust systems.

123
Q

Fill in the blank: Boeing 787 engines improve their environmental footprint by using _______ to reduce unnecessary fuel consumption.

A

optimized flight path algorithms

124
Q

True or False: The Boeing 787 engines are fitted with systems to limit contrail formation at cruising altitudes.

A

True

125
Q

How do Boeing 787 engines contribute to reducing the total cost of ownership for airlines?

A

By delivering higher reliability and longer intervals between overhauls.

126
Q

Fill in the blank: In addition to providing thrust, Boeing 787 engines also contribute to the aircraft’s electrical power through their _______.

A

integrated generator systems

127
Q

True or False: Boeing 787 engines are designed to operate efficiently with a variety of fuel types, including lower carbon alternatives.

A

True

128
Q

What technology in Boeing 787 engines helps in reducing thrust fluctuation during turbulence?

A

Active gust alleviation systems

129
Q

Fill in the blank: Boeing 787 engines feature a(n) _______ that helps manage engine performance to extend lifespan and reduce wear.

A

advanced synthetic oil system

130
Q

True or False: The Boeing 787 engines are among the most fuel-efficient engines available in the commercial aviation market today.

A

True

787 recurrent (3 decks)

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