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M15 Ryan > M15.13 > Flashcards

M15.13 Flashcards

1
Q

What are the 3 main engine controls?

A

Engine start controls
Fwd thrust controls
Reverse thrust controls

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2
Q

What does the start leave do?

A

Switches fuel on and off and switches ignition on during engine start

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3
Q

How is fuel supplied to the combustion chamber?

A

Via a high pressure fuel shut off valve and a low pressure fuel shut off valve

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4
Q

How is the position of the fuel shut off valves shown?

A

A fuel valve close light

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5
Q

How is the hp fuel shut off valve controlled?

A

Mechanically by engine start leaver

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6
Q

On Airbus how are the hp and lip fuel valves controlled?

A

Via engine master switch

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7
Q

How do you know if the fuel valve is open on Airbus?

A

Via:
Fuel flow indication
Increase in EGT
Fuel used indication

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8
Q

What are the 2 positions of reverse thrust leaver?

A

Idle
Full thrust

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9
Q

What is the purpose of the friction brake?

A

Internal friction to keep throttle in selected position

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10
Q

How does the throttle move during auto throttle?

A

With the electrical servo motor

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11
Q

What are the 3 warnings activated by throttle micro switches?

A

Take off warning
Cabin pressurisation
Thrust reverser activation

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12
Q

What is the throttle interlock system?

A

Separates the forward thrust control system and rear thrust control system

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13
Q

Where is the throttle interlock system usually located?

A

On the engine pylon

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14
Q

How is the throttle interlock system controlled?

A

By a mechanical feedback system

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15
Q

How many thrust control signals are sent from each control leaver?

A

2 separate signals

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16
Q

How many resolvers are there for each throttle ?

A

2

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17
Q

What does the resolver do?

A

A electrical component that converts angular deflection of leaver to a electrical signal

18
Q

What is the purpose of the artificial feel system?

A

Give the pilot a feel of resistance

19
Q

Do the throttles move on their own when in auto throttle in Boeing and Airbus?

A

Boeing = yes
Airbus = no

20
Q

When is the start ignition required?

A

To start the combustion process

21
Q

When would there be continuous ignition?

A

When there’s a risk of engine flame out

22
Q

What are the ignition components?

A

Ignition exciter
Igniter plug
Ignition leads

23
Q

How many ignition systems does each engine have?
And what are they?

A

2
A and B

24
Q

Why does each engine have 2 ignition systems?

A

For safety

25
Q

What is one ignition system always powered by?

A

Emergency power

26
Q

What must you never do with the ignition exciter?

A

Touch it

27
Q

Where are the igniter plugs installed?

A

In 2 positions in the combustion chamber bellow the centre line

28
Q

What does 2 blue rings signify on igniter plugs?

A

They are made of toxic beryllium oxide

29
Q

What must you never do with igniter plugs made from beryllium oxide?

A

Touch them with your bear hands

30
Q

Why must you never drop igniter plugs?

A

Because you can brake the insulator

31
Q

Why is cooling air needed on ignition leads?

A

Because copper wires resistance increases when it’s temp increases

32
Q

What keeps ignition leads contact centred?

A

A ceramic insulator

33
Q

Starting systems for GTE’s can be what?

A

Pneumatic or electric

34
Q

What does the starter motor do?

A

Gets everything turning to start the engine

35
Q

What is a use for the starter motor during maintenance?

A

To turn over the engine

36
Q

Can the pneumatic starter motor start the engine in flight?

A

Yes

37
Q

The starter motor operates the compressor through what?

A

The accessories gearbox

38
Q

The idle speed and starter cut out speed is always higher then what?

A

Self sustaining speed

39
Q

What are the 4 components that make up the pneumatic starter motor?

A

Pneumatic starter motor
Starter air supply duct
Starter shut off valve
Cockpit controls

40
Q

How can air supply for starter motor be switched on or off?

A

With the starter shut off valve

41
Q

Where is the starter shut off valve located?

A

In the lower area of the engine so it can be easily accessed by Maintenance personnel

42
Q

How is a starter shut off valve controlled and operated?

A

Electrically controlled
Pneumatically operated

M15 Ryan (17 decks)

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