Engine

Question 1

What drives the accessory gear box

Answer 1

N2 Compressor, which is driven by the high pressure turbine

Question 2

What items are on the accessory gear box?

Answer 2

-FISH OIL+

Fuel pump (3)
IDG (integrated drive generator)
Starter (Air Turbine Starter)
Hydraulic pump

Oil pump
+fadec alternator
FADEC Alternator

Question 3

What are the rated thrust outputs of the engine?

Answer 3

Normal - 12,670

APR - 13790

Question 4

How many stages is the low pressure turbine?

Answer 4

4

Question 5

How much of the engine’s overall thrust is provided by the N1 Fan?

Answer 5

80%

Question 6

What powers the variable geometry (VG) vanes?

Answer 6

Fuel pressure directed by the FADEC

Question 7

How is fuel heated prior to combustion?

Answer 7

Fuel/Oil heat exchanger

Question 8

How many channels does the FADEC have, and when do the channels change?

Answer 8

2 Channels, A and B.

The Channels change when the N2 RPM falls below 7% on every other engine shutdown

Question 9

How many FADEC Channels are in use at once?

Answer 9

1 channel commands the engine while the other channel monitors the controlling channel and is in standby incase the commanding channel fails

Question 10

Is there ever a time when both FADEC channels will command the engine simultaneously?

Answer 10

In an engine overspeed situation both FADEC channels will command the fuel valves to close to bring the speed into the normal range

Question 11

What happens if both FADEC channels fail or the FADEC loses power?

Answer 11

The engine will fail

Question 12

Can the left engine’s FADEC control the right engine?

Answer 12

No

Question 13

Do the left and right engine’s FADECs cross talk with each other?

Answer 13

Yes. They compare engine speed and thrust reverser position information

Question 14

While cross talking, when will one engine’s FADEC assume the other engine has failed?

Answer 14

Difference of at least 15%

Question 15

When the engine fails, what will the operative engine’s FADEC automatically command?

Answer 15

APR in the TOGA detent

MCT in the CLIMB detent

And a proportionate increase throughout the cruise range

Question 16

What will the FADEC command if the thrust reverser deploys in flight?

Answer 16

It will reduce that engine’s thrust to idle

Question 17

At what speed does the FADEC lock in the final N1 computation during takeoff?

Answer 17

65 Kts

Question 18

What powers the FADEC

Answer 18

Aircraft electrical power with an N2 of less than 50%, and the FADEC alternator with an N2 of greater than 50%

Question 19

If we wait for the FADEC to shut the engine down during a hot start, are we guaranteed that the ITT limit will not be exceeded?

Answer 19

No

Question 20

Will the engine automatically shutdown for a hot start on the ground?

Answer 20

Yes

Question 21

Is there ITT protection and subsequent auto shutdown in flight?

Answer 21

No

Question 22

What is the time limit for single engine APR thrust?

Answer 22

10 minutes

Question 23

What is the time limit for normal or FLEX thrust?

Answer 23

5 minutes

Question 24

When will the L or R OIL LEVEL LO status message appear?

Answer 24

Below 57% with the engine running

below 80% with the engine stopped

Question 25

What is FLEX thrust?

Answer 25

It is a reduced power setting for takeoff calculated using an assumed temperature

Question 26

When using FLEX thrust for takeoff, what must the PIC verify prior to takeoff?

Answer 26

The PIC must verify that the computed thrust displayed on the primary display is equal to or greater than that required in QRH Vol. 1

Question 27

What color will the FLEX thrust rating be displayed in on the primary display?

Answer 27

Magenta

Question 28

When is FLEX thrust not permitted?

Answer 28

Think ABCDEFG Acronym Antiskid has failed Bleeds in use Contamination De iced Engine cannot perform full thrust takeoff Full thrust required per departure procedure Gust (wind shear reported)

Question 29

What stages of the engine is bleed air extracted from?

Answer 29

6th and 10th stages

Question 30

Can both stages be used at once?

Answer 30

No

Question 31

What powers the igniters?

Answer 31

Igniter A - AC essential bus | Igniter B - Battery and an inverter

Question 32

When is the use of continuous ignition required? TTFFF

Answer 32

Takeoff and landings in contaminated runways Takeoff with high crosswind component (15 kts or greater) Flight through moderate or heavier intensity rain Flight through moderate or heavier intensity turbulance Flight in the vicinity of thunderstorms

Question 33

When will the continuous ignition fire automatically?

Answer 33

- When the FADEC senses a flameout - When approaching a stick shaker during a stall - When a disruption of airflow is detected through the engine

Question 34

How are the thrust reversers actuated?

Answer 34

Hydrualically

Question 35

How are the thrust reversers locked?

Answer 35

Hydraulically, and mechanically

Question 36

What is the maximum ITT for engine start on the ground and in flight?

Answer 36

120* C ground | 90 * C flight

Question 37

What is the maximum altitude for engine relight

Answer 37

FL 210

Question 38

What are the 5 different engine idles? (FALRG)

Answer 38

``` Flight IDLE Approach IDLE Landing IDLE Reverse IDLE Ground IDLE ```

Question 39

When is APR armed for takeoff?

Answer 39

When within 8% of target thrust

Question 40

When is the go around mode armed on approach?

Answer 40

With the gear extended or the flaps greater than 20

Question 41

What does the blue circle indicate on the N1 Gauge during cruise flight?

Answer 41

The maximum thrust setting for cruise (Less then MCT)

Question 42

What are the engine warm up limitations?

Answer 42

The engines must remain at idle until the oil pressure is in the normal range. Do not exceed 75% N1 until all indications are in the green or two minutes has passed whichever is longer

Question 43

What is the engine cool down limitation?

Answer 43

After landing the engine must be at or near idle thrust for two minutes prior to shutdown