Week 2

Question 1

How many bleed air and air conditioning controllers are there?

Answer 1

• 2 of each
• interchangeable - strapping instructs what they do

Question 2

When is the compressor turbine check valve open and closed?

Answer 2

• open on start
• closed when pressure out is greater than pressure in

Question 3

If the air data system fails, which of your components would provide aircraft with differential pressure information?

Answer 3

CPAM (cabin pressure acquisition module)

Question 4

If the TROV fails closed, what prevents the aircraft from structural failure?

Answer 4

Pressure relief valve

Question 5

Which component acts as backup to prevent supply duct overheat?

Answer 5

Supply duct overheat thermostat

Question 6

If the wing goes in to an overheat condition, what would CAS message be?

Answer 6

Wing overheat (cyan)

Question 7

When weight off wheels, left main powers which windscreens?

Answer 7

Left windscreen, right side

Question 8

How many temp sensors are there in a front windshield? If they fail, what happens to window heat?

Answer 8

• 2
• turns off

Question 9

Where does cowl anti ice vent out of?

Answer 9

Bottom of the inlets

Question 10

What bleed air configuration would the aircraft be in if outlet temp sensor was reading 500 Fahrenheit?

Answer 10

Single bleed with anti ice on

Question 11

What channel of the EEC provides power to the DSU?

Answer 11

Channels A and B

Question 12

What provision in the FMU is designed to filter fuel before it is used by fuel controlled actuators?

Answer 12

Coarse wash filter

Question 13

If you’re running the aircraft on ground and the APU temp gets too high, what happens?

Answer 13

APU ECU shuts down

Question 14

How does the APU interrogate the hour meter?

Answer 14

APU master on

Question 15

Which of my APU components send the electrical pressure signal to ECU?

Answer 15

P2 pressure transducer

Question 16

After operating the APU in flight, how long do you have to be WOW before APU reverts to non essential mode?

Answer 16

15 mins

Question 17

When you get a APU fire indication and you press the fire bottle switch, which CAS message will you see?

Answer 17

(Amber) L/APU fire bottle discharge

Question 18

Excessively low baggage comply pressure will result in what CAS message?

Answer 18

(Cyan) Baggage compt low PX

Question 19

When you pull the engine fire handle, what 4 things are cut off?

Answer 19

• onside GCU
• hydraulics
• hfrtt
• fuel

Question 20

What is considered engine zone 1?

Answer 20

Inside cowls, forward of TR, aft of nose cowl, outside of bypass duct

Question 21

What material is around fan case for protection?

Answer 21

Kevlar

Question 22

What component is responsible for shutting down the engine if it experiences uncommanded high thrust?

Answer 22

Protection CPU (PCPU) in the EEC

Question 23

What component is responsible for commanding the spark rate of the igniters?

Answer 23

EEC

Question 24

Which component in the ignition system provides the spark to the igniters?

Answer 24

Exciter (HEIU)

Question 25

In the engine, what is P2.5 air used for cooling?

Answer 25

ACC (active clearance control)

Question 26

I’m the throttle quadrant, what component prevents inadvertent T/R whilst in forward thrust?

Answer 26

Interlock pin

Question 27

In event of servo failure in throttle quadrant, what component allows the crew to take control of the system?

Answer 27

Mechanical slip clutch

Question 28

Which of the components on the engine is referred to as the cold junction reference point?

Answer 28

MOT (main oil temp) sensor

Question 29

Which engine component is responsible for N2 signal?

Answer 29

PMA

Question 30

How are the T/R doors actuated?

Answer 30

Electrically controlled, hydraulically actuated

Question 31

In which component is oil at higher pressure than fuel?

Answer 31

Fuel oil heat exchanger

Question 32

After start and SVO fails to close, what is the indication?

Answer 32

• amber SVO flashing
• amber SVO open CAS message

Question 33

If a bleed air controller fails. How can you reset?

Answer 33

Pull both CB’s

Question 34

What component failing might cause excessively low bleed air temperature?

Answer 34

Fan air valve

Question 35

How can you verify a failed valve?

Answer 35

Physical valve indicator

Question 36

How many switches on the bleed air control panel?

Answer 36

4