Chapter 7, Aircraft Systems Part 1 Flashcards
What is used to produce thrust to propel an aircraft?
Engine
A propeller is used on which type of aircraft engines?
Reciprocating & Turboprop
True or false, a propeller is subject to induced drag, and stalls.
True
How does a rotating propeller produce thrust?
By creating differential pressure, the same way that a wing produces lift
Which of these can affect the amount of thrust produced by a propeller?
All of them.
1. The shape of the propeller
2. The angle of attack of the propeller blade
3. The revolutions per minute that the propeller is rotating
In an aircraft with a fixed-pitch propeller, what is the indicator of engine power?
Tachometer
What is varied to maintain a constant propeller rpm (revolutions per minute) in a constant-speed propeller system?
Pitch of the propeller
In an aircraft with a constant-speed propeller, what is the indicator of engine power?
Manifold pressure
What type of engine starting system do most small aircraft use?
Electric start
What usually supplies electrical power for aircraft electric start systems?
Battery
What is the full authority digital electronic control (FADEC) used for?
Engine control
What input is required for the FADEC system?
All of them.
1. Speed
2. Temperature
3. Pressure
How many levers are used to control a FADEC-equipped engine?
1
How many sources of electrical power are required for a FACEC?
2
Place these sections of a turbine engine in the order that air passes through them. 1) inlet, 2) combustion, 3) exhaust, 4) compressor, 5) turbine.
1,4,2,5,3
inlet – compressor – combustion – turbine – exhaust
Which type of engine can have these instruments: oil pressure, oil temperature, engine speed, exhaust temperature, and fuel flow?
Turbine & Reciprocating
What is used to indicate the power of a turbojet/turbofan engine?
Pressure ratio
What is used to indicate the power of turboprop/turboshaft engines?
Torquemeter
What turbine engine indication typically represents the rotational speed of the low-pressure compressor and is presented on the indicator as a percentage of design rpm?
N1
What turbine engine indication typically represents the rotational speed of the high-pressure compressor and is presented on the indicator as a percentage of design rpm?
N2
What possibility exists due to the design and function of a turbine engine’s air inlet?
Ingestion of debris
Where are aircraft fuel tanks normally located?
Inside the wings
Why are fuel tanks vented to the outside?
To maintain atmospheric pressure inside the tank
What happens when a tank is filled with cold fuel from underground storage, then left outside in the sun?
The fuel expands and can drain overboard
The fuel quantity gauges indicate the amount of fuel measured by a sensing unit in each fuel tank and display quantity in ____________, or _____________. Select all that apply.
Gallons & Pounds
What are common positions on an aircraft fuel selector valve? Select all that apply.
(Both), (Right), (Off), and (Left)
