Power plant

Question 1

Which engines power of the EMB-145 LR

Answer 1

AE 3007 A1

Question 2

Which turbine drives the compressor

Answer 2

Second stage high-pressure turbine

Question 3

How many stages does the gas generator axial flow compressor have

Answer 3

14

Question 4

Which turbine drives the fan

Answer 4

Third stage low pressure turbine

Question 5

At which stages is the bleed air tapped

Answer 5

 ninth and 14th

Question 6

Which engine and aircraft accessories are mounted on the accessory gearbox

Answer 6

One hydraulic pump
Two brushless electric generators
One air turbine starter
One permanent magnet alternator
One oil pump
One fuel pump metering unit

(HEAPOF)

Question 7

What are the three sources of air available for an engine start?

Answer 7

APU
Engine bleed air
External air cart

Question 8

Which unit controls the engine fuel, pumping, filtering, and metering functions

Answer 8

FPMU, under the authority of the FADEC

Question 9

Where are compressor variable geometry (CVG) veins provided

Answer 9

For stages one through five of the compressor, and inlet guide veins

Question 10

How are the compressor variable geometry (CVG) veins controlled

Answer 10

By fuel pressure from the FPMU, under input from the FADECS

Question 11

What will the engine do in the absence of a torque motor signal to the fuel metering valve from either of the engines FADECs

Answer 11

It will shut down

Question 12

Which part of the engine fuel system, both cools the engine oil and warms the fuel upstream of the FPMU filter

Answer 12

FCOC

Question 13

Which page of the MFD shows the engines oil level

Answer 13

Takeoff page

Question 14

Where is the engine oil pressure

Answer 14

On the EICAS

Question 15

What is the capacity of each engines oil tank?

Answer 15

12 quarts

Question 16

What is the recommended minimum oil level for Dispatch?

Answer 16

8 quarts

Question 17

What minimum temperature must oil be at before N2 can be increased above 83%

Answer 17

40°c

Question 18

At what level will the engine oil level indication turn Amber

Answer 18

When the oil level drops below 5 quarts

Question 19

What does the acronym FADEC stand for?

Answer 19

Full authority digital electronic control

Question 20

What is the primary electrical power source for engine control and the ignition system?

Answer 20

PMA

Question 21

How many separate electrical windings does the PMA have?

Answer 21

Four:
2 three phase windings, and 2 single phase windings

Question 22

What are the sources of N2 speed for the FADECs

Answer 22

Primary: one dual channel N2 sensor on the accessory gearbox

Secondary: from one of the three phase windings on the PMA

Question 23

What are the sources of N1 speed for the FADECs

Answer 23

Two door channels sensors provide both primary and secondary speed signals, located at 11 and 12 o’clock on the left engine and 12 and 1 o’clock on the right engine

Question 24

Above what N2 speed can the PMA provide sufficient power to drive the ignition system and FADEC

Answer 24

10% for the ignition system, and a minimum of 50% for the FADECs

Question 25

How many igniters does each engine have, and where are they located?

Answer 25

2: at 12 and 6 o’clock positions

Question 26

How many fuel nozzles are there on each engine?

Answer 26

16

Question 27

How is the FADEC in command alternated

Answer 27

Automatically upon each engine start, and manually through use of the FADEC Control knob on the overhead panel This knob becomes inoperative if held in any position for more than three seconds

Question 28

While one FADEC controls the power plant, the other remains in standby mode, what does the standby FADEC do

Answer 28

It monitors all inputs, performs, all computations, and performs built-in test and fault detection. Output drivers for fuel flow and CVG Control powered off.

Question 29

Why is each FADEC connected to one of the FADEC’s on the opposite engine

Answer 29

For thrust reverser interlock and automatic takeoff thrust control system

Question 30

What are the thrust rating modes that can be selected for the A1 engines?

Answer 30

CLZ, CLB, CON, ALT/TO-1, TO-1

Question 31

When will the FADECs command N1 Target?

Answer 31

When the thrust levers are positions in the detent

Question 32

If a thrust reverser inadvertently deploys in flight, how will the FADECs react?

Answer 32

They will automatically select idle thrust

Question 33

Where must the thrust levers be positioned to enable the engine to be shut down?

Answer 33

At idle

Question 34

How are Target N1 and Requested N1 shown on the EICAS?

Answer 34

Target N1 is a blue T and the Requested N1 bug is a solid green triangle

Question 35

Which thrust mode should be selected in flight with one engine inoperative?

Answer 35

CON

Question 36

Which conditions must be met to select CON mode?

Answer 36

Pressure altitude must be greater than 300 ft above takeoff altitude with no gear down and locked, or pressure altitude greater than 1,700 ft above takeoff altitude

Question 37

What conditions must be met to select CLB mode?

Answer 37

Pressure altitude must be greater than 500 ft above takeoff altitude with no gear down and locked and no one engine inoperative signal, or pressure altitude greater than 1,700 ft above takeoff altitude and no OEI signal

Question 38

Under what conditions will the FADEC select T/O 1 mode?

Answer 38

-FADEC power up -TO thrust rating button pressed with aircraft on the ground and TLA less than or equal to 50 degrees -Gear down and locked below 15,000 ft -When ATTCS is triggered during operation in ALT T/O-1 mode -When thrust levers are advanced past the THRUST SET position

Question 39

Where are the takeoff data setting controls located?

Answer 39

On the overhead panel and consist of a store button and a control knob

Question 40

What information must be entered by the pilot for takeoff data?

Answer 40

- Takeoff mode - Reference takeoff temperature - Reference anti ice condition

Question 41

Where is the takeoff data shown?

Answer 41

On the takeoff page on the MFD

Question 42

What causes the MFD to show amber dashes where the takeoff data should be, and what should be done?

Answer 42

The takeoff data has not been accepted because Ref TO temp is outside acceptable limits

Question 43

What does the caution message ENG REF A/I DISAG mean?

Answer 43

The anti-ice system condition does not agree with the ref anti-ice condition selected on the takeoff data

Question 44

What is the purpose of the automatic takeoff thrust control system (ATTCS)?

Answer 44

To reschedule takeoff thrust to maximum takeoff thrust in an event an engine failure is detected during takeoff

Question 45

What is the indication to the pilots that ATTCS is armed on takeoff?

Answer 45

A green ATTCS inscription shows below the thrust rating mode

Question 46

Which aircraft system is used to activate the thrust reversers?

Answer 46

Hydraulic

Question 47

How many locking systems does the thrust reverser system use to avoid inadvertent in flight deployment?

Answer 47

Three

Question 48

How are the thrust reverser locking systems actuated?

Answer 48

The primary and secondary locks electronically commanded/controlled and hydraulically powered to unlock, the tertiary lock is electrically commanded/controlled and electrically powered to unlock

Question 49

What are the main components of the lubrication system?

Answer 49

-Oil Tank -Lube and scavenge pump -Oil filter unit -Air cooled oil cooler -Fuel cooled oil cooler

Question 50

What regulates the pressure supplied to the ATS and provides isolation pneumatic system following start completion?

Answer 50

Start control valve

Question 51

What is the function of the FADEC engine control logic?

Answer 51

It controls engine fuel flow and the position of the CVGs. It also incorporates engine protection logic, prohibiting fuel flow commands that would result in exceeding rotor or temperature operating limits

Question 52

During takeoff, the EICAS warning shows: ATTCS FAIL. What is the recall item?

Answer 52

Thrust lever........ MAX

Question 53

During takeoff and below V1, the EICAS message shows: E1(2) LOW N1

Answer 53

Rejected Takeoff Procedure.....ACCOMPLISH

Question 54

What is the correct drill for a hot start?

Answer 54

START/STOP selector ...... STOP