Primary Flight Controls

Question 1

What is a manual control system?

Answer 1

Control surfaces are mechanically connected to control imputs.

Question 2

Whats a power assist control system? What is used to assist?

Answer 2

Hydraulic pressure used to assist.

Question 3

What is a fully powered flight control?

Answer 3

Electro-hydraulic actuators command flight controls.

Question 4

What control systems are reversable?

Answer 4

Manual and power assist.

Question 5

What control system is irreversible?

Answer 5

Fully powered.

Question 6

What are two factors that increase control force in regards to natural feel.

Answer 6

1. Increased speed 2. Increased deflection.

Question 7

Why do we have yaw dampers?

Answer 7

Dutch roll.

Question 8

Why do we have rudder ratio changers?

Answer 8

Changes the range of deflection based on forward speed.

Question 9

What does a q system feel sense?

Answer 9

Dynamic pressure.

Question 10

Whats a method of counteracting adverse aileron yaw?

Answer 10

Rudder or move the alerion higher up then down.

Question 11

What do roll spoilers prevent compared to ailerons?

Answer 11

Adverse aileron yaw.

Question 12

To limit the range of movement available on the control surface, what are fitted?

Answer 12

Primary control stops.

Question 13

To limit the range of movement avalibke secondary control stops are used. Where are they located?

Answer 13

On the flight controls.

Question 14

Where are primary control stops located?

Answer 14

Control surface.

Question 15

If the elevator is up, what position is the trim tab?

Answer 15

Down.

Question 16

What does ths stand for ?

Answer 16

Trim able horizontal stabiliser.

Question 17

Whats a blow back device?

Answer 17

Prevent overstress.

Question 18

Fly by wire is a what type of system?

Answer 18

Irreversible.

Question 19

Is fly by wire heavier or lighter than conventions control systems?

Answer 19

Lighter.

Question 20

Primary Computers ‘vote’ by blank their blank– only the most valid calculation is used as an output
signal

Answer 20

Comparing their calculations.

Question 21

What type of flyby wire law is– Full suite of protection features and normal aircraft operating limits

Answer 21

Normal law

Question 22

What law on flyby wire is - Basic range of stabilities with the protections lost.

Answer 22

Alternate law

Question 23

What type of law in flyby wire is the following - Any input into the sidestick translates to direct movement on the control surface; no stabilities or protections.

Answer 23

Direct law

Question 24

What law in flyby wire is - Sidestick and Flight Control Computers lost; Pitch via the trim wheels and yaw from rudders.

Answer 24

Mechanical law.

Question 25

How do you prevent a stabiliser or aileron moving in the wind on the ground?

Answer 25

Ground lock.

Question 26

Whilst flying an Airbus fitted with FBW flight controls, you encounter windshear. What should you do with the sidestick? Pull the stick...

Answer 26

all the way back, and keep it fully back.

Question 27

Trailing edge flaps on large transport aircraft are normally powerd blank with blank back-up.

Answer 27

Hydraulically with electrical.

Question 28

Which of these statements about a gust lock system are correct? 1. There should be suitable design precautions to prevent flight with the gust lock engaged 2. There is no need for a gust lock on reversible flight controls

Answer 28

1 correct 2 incorrect

Question 29

What does a fully powered system require compared to a partially-powered system?

Answer 29

Artificial feel system.

Question 30

A flight control surface actuator is said to be "irreversible" when…

Answer 30

there is no feedback to the pilot`s controls of the aerodynamic forces acting on the control surface.

Question 31

Which of these statements are correct, as regards trimming in an irreversible flight control system of a conventional aeroplane equipped with a trimmable horizontal stabiliser? 1. The zero force position of the control column changes when using the pitch trim 2. The zero force position of the control wheel changes when using the aileron/rudder trim

Answer 31

1 incorrect 2 correct

Question 32

An aeroplane equipped with irreversible flight controls requires what?

Answer 32

An artificial feel system

Question 33

If a higher pressure is needed within the canin, what will happen to the outflow valve?

Answer 33

It will close.

Question 34

The purpose of the pack cooling fans in the air conditioning system is to supply the heat exchangers with cooling air during

Answer 34

Slow flight and ground opps

Question 35

The most common method for anti-icing the wings of large jet transport aeroplanes in flight is…

Answer 35

Hot air.

Question 36

True or false : The resulting control input of a dual control input from both sidesticks is electronically limited to the maximum deflection limit of one sidestick

Answer 36

True

Question 37

True or false : Under direct Law, roll and pitch augmentation are lost but you still have aural and visual alerts.

Question 38

True or false : A rudder ratio changer system limits both rudder and rudder pedal deflection as the IAS increases.

Answer 38

False - yes for the rudder but not for rudder pedals

Question 39

The rudder is trimmed in a fully powered flight control system by… altering the neutral position of the

Answer 39

Artificial feel unit.

Question 40

How can sufficient control-capability be maintained in case of a malfunction/jam in the flight control system? Add multiple blank.

Answer 40

Add multiple acuators.

Question 41

During final approach in a jet aircraft with Fly-By-Wire flight controls, ATC instructs you to go around as there is still an aircraft on the runway. In the cockpit, the term "alpha floor" is mentioned. What will alpha floor protection do?

Answer 41

Increase thrust to reduce stall

Question 42

What is the function of the hydraulic control valves in a fullypowered flight control system? The control valves control the movement of the hydraulic blank.

Answer 42

Accuators

Question 43

How does a pilot disconnect the autopilot in an aircraft equipped with a sidestick? 1- By pushing or pulling the sidestick hard 2- By pressing the A/P button on the glareshield 3- By pressing the takeover pushbutton 4- By moving the thrust levers

Answer 43

123

Question 44

An aircraft is powered down, and the rudder is at full left deflection, but the rudder pedals are centred. What can we say about the aircraft's control system? Reversible/irreversible flight controls

Answer 44

Irreversible

Question 45

An electrical connection from the Fly-By-Wire (FBW) system to the left-hand aileron has become broken in flight. How can directional control be maintained? Through a second/separate identical, actuator.

Answer 45

Seperate

Question 46

Blank controls allow the pilot to feel some of the actual aerodynamic loads of the control surface.

Answer 46

Partially powered

Question 47

What are the advantages of Fly-By-Wire control? 1. Reduction of the electric and hydraulic power required to operate the control surfaces 2. Lesser sensitivity to lightning strike 3. Direct and indirect weight saving through simplification of systems 4. Immunity to different interfering signals 5. Improvement of piloting quality throughout the flight envelope

Answer 47

35

Question 48

In a Fly-By-Wire (FBW) aircraft controlled by sidesticks, how can a pilot lock out the flight control inputs of the other pilot? By performing a blank blank on the sidestick priority button.

Answer 48

Long push

Question 49

On a large transport aeroplane, the auto-slat system…

Answer 49

Extends slats when large aoa is detected