Engines

Question 1

Engine description and thrust?

Answer 1

RR RB211-535E4-B

42700lbs

Question 2

What rotor drives the accessory gearbox?

Answer 2

N3

Question 3

What is the primary control for the engines using either the autothrottles or manual pilot throttle inputs?

Answer 3

The Electronic Engine Controllers (EECs)

Question 4

What are the three primary engine indications?

Answer 4

EPR, N1, and EGT

Question 5

What is the amber (maximum continuos) inhibit for EGT, N1, N2, and N3 indications during takeoff or go-around?

Answer 5

Inhibited for 5 minutes

Question 6

Are the red line limits inhibited during take off or go-around for EGT, N1, N2, or N3?

Answer 6

No

Question 7

When does compact mode automatically occur?

Answer 7

On failure of one of the EICAS CRTs

Question 8

Which system calculates maximum EPR for all phases of flight? What about when that system is OFF or INOP?

Answer 8

EEC, or alternatively the TMC

Question 9

With the EEC on what happens when thrust levers moved to the forward stop position?

Answer 9

Maximum calculated EPR will be maintained

Question 10

What does green and amber REV indication mean?

Answer 10

Green means the reverser is fully deployed and amber means the reverser is unlocked or in transit

Question 11

What does the TMC calculate reference EPR from for the various modes? What are the modes? (8)

Answer 11

Based on pressure altitude and ambient temperature

TO, D-TO, CLB, CLB1, CLB2, G/A, CRZ, CON

Question 12

Two places to enter an assumed temperature?

Answer 12

Through either the TMSP or the CDU TAKEOFF REF page

Question 13

When MAN is set on the TMSP what default manual EPR value is first indicated?

Answer 13

1.55 EPR

Question 14

When in VNAV does the FMC control the thrust modes automatically?

Answer 14

Yes

Question 15

Can the FMC set reduced thrust climb values?

Answer 15

No, must be done manually

Question 16

What is assumed temperature takeoff limited to? (2)

Answer 16

25% reduction of takeoff thrust or climb thrust - whichever is greater

Question 17

How know when max assumed temperature is reached?

Answer 17

When dialling in a greater temperature on the TMSP or on CDU TAKEOFF REF page does not changed the displayed assumed temperature or reference thrust value

Question 18

What % of thrust does climb 1 give?

Answer 18

94%

Question 19

What amount of thrust does climb 2 give?

Answer 19

Enough to meet a min single engine climb gradient, increasing to 88% when flaps 1 selected or above 3000ft AGL or 10000ft AMSL

Question 20

Two types of thrust control systems?

Answer 20

EECs and hydromecnanical

Question 21

When the EECs are turned off what controls thrust?

Answer 21

Hydromechanical engine fuel control

Question 22

What powers the EECs?

Answer 22

Each EEC is powered by dual dedicated generators

Question 23

Why should the thrust lever be moved to a mid point position when turning an EEC off?

Answer 23

To prevent a possible engine overboost because under normal operations the EECs trim a bit of fuel from the hydromecnanical fuel control system

Question 24

What does ELC do?

Answer 24

Prevents engine limits being exceeded by taking fuel away

Question 25

Why take thrust lever to mid point before turning ELC off?

Answer 25

Prevent possible overboost as any trim level held by ELC comes out when turned off

Question 26

How ELCs powered?

Answer 26

Each ELC powered by dual dedicated generators

Question 27

What are the two channels of the EECs? What do they do?

Answer 27

Supervisory Channel - Provides EPR overboost protection | Limiter Channel - provides N1 overspeed protection

Question 28

Is there N2 overspeed protection?

Answer 28

No

Question 29

Wha provides N3 overspeed protection?

Answer 29

Fuel control unit

Question 30

Two different idle settings?

Answer 30

Minimum idle and approach idle

Question 31

What drives the engine starter?

Answer 31

Pneumatic air

Question 32

How long does the engine EGT start limit remain indicated during engine start?

Answer 32

Until the engine has stabilised at idle

Question 33

What two things does fuel controls switches control?

Answer 33

Fuel and ignition

Question 34

What rotor is the engine starter connected to?

Answer 34

The N3

Question 35

What does the VALVE light indicate on start?

Answer 35

The start valve failed to open

Question 36

When add fuel during engine start?

Answer 36

25% N3 or max motoring rpm

Question 37

When is max motoring rpm reached?

Answer 37

When N3 acceleration is less than approx 1% in 5 seconds

Question 38

What fuel valves does the fuel control switch operate?

Answer 38

The spar and engine fuel control valves

Question 39

When does start selector move back from GND to AUTO during start?

Answer 39

AT approx 47%

Question 40

What does L or R STARTER CUTOUT during start mean?

Answer 40

Start valve has failed to close automatically so need to move start switch to off to close the starter

Question 41

When is rich start used?

Answer 41

Cold starts and in flight starts when EGT is zero

Question 42

Starter cycle limits?

Answer 42

Up to 2 min - then Zero N3 Up to 2 min - then Zero N3 Up to 2 min - then Zero N3 and 15 min cool down time

Question 43

Recommended N3 re-engagement speed? (2)

Answer 43

0% N3 recommended | 0-20% N3 Normal

Question 44

Recommended re-engagement above 20% N3 not recommended except in case of?

Answer 44

Fire

Question 45

Re-engagement above 30% N3 may result in?

Answer 45

Damage to starter or gearbox

Question 46

Main and back up power sources for the engine ignition system?

Answer 46

Main AC = primary | Standby AC = backup

Question 47

How is the fuel heated?

Answer 47

Through a fuel/oil heat exchanger

Question 48

What are the system components in order of the engine fuel system from manifold to engine? (8)

Answer 48

Spar valve - First stage pump - Fuel/Oil Heat exchanger - First Filter - Second stage pump - Fuel control unit (with trim motor from EEC and ELC) - Engine Valve - Fuel Flow Meter - Second Fuel Filter

Question 49

What controls both the engine and spar fuel valves? (2)

Answer 49

Both the fuel control switch and the fire handles

Question 50

Is there a bypass for the first fuel filter?

Answer 50

Yes

Question 51

How is a fuel bypass (first fuel filter) situation indicated?

Answer 51

L or R ENG FUEL FILT on EICAS

Question 52

Where is oil temperature measured?

Answer 52

After it leaves the engine before it goes back into the oil resevoir

Question 53

Can the main oil filter be bypassed and what indication it is clogged?

Answer 53

No. EICAS = L or R OIL FILTER

Question 54

Can the scavenge oil filter be bypassed?

Answer 54

Yes

Question 55

Are there any limits for oil quantity or flight crew procedures?

Answer 55

No

Question 56

How reverse thrust actuated?

Answer 56

Hydraulically

Question 57

The revers thrust levers can only be raised when the thrust levers are in what position?

Answer 57

Idle

Question 58

What two other things automatically occur when thrust levers moved to idle?

Answer 58

1. Autothrottle disengages (warnings inhibited during autoland) 2. Autospeed brakes deploy (for RTO - deploy when set to auto on landing via other means)

Question 59

Thrust levers cannot be moved forward until reversers are?

Answer 59

stowed and locked

Question 60

What does L or R REV ISLN VAL on EICAs mean?

Answer 60

Fault exists in the reverser system. If detected above 80kts it is inhibited until after landing