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B777 Study > ATP QUESTIONS > Flashcards

ATP QUESTIONS Flashcards

1
Q

Min fuel required?

A

Trip + most distant alternate + 45 mins reserve + 2000lbs taxi

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2
Q

Take off alternate needs to be?

A

1 hour still air @ single engine speed

At or above CAT 1 minima

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3
Q

Engine bleed switches OFF light illuminates?

A 
Engine not running
Overheat
Valve failed closed 
Eng Fire Switch has been pulled
Switch pushed off
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4
Q

Engine bleed air valves auto close when?

A 
During start
Bleed source loss
Over temperature 
Over pressure 
Duct leak
Engine fire switch pulled
Ground cart supplying air
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5
Q

APU bleed air available? What stops reverse flow?

A

22,000ft. Check valve.

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6
Q

How many Packs? Cool bleed air from?

A

2 identical packs

Cool air from: engines / APU / ground pneumatic cart.

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7
Q

If a pack controller fails

A

Shuts down automatically when fault detected.
Can automatically switch to other controller.
1 pack can supply the whole AC

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8
Q

Pack outlet air temp controlled by?

A

The zone requesting the coldest air

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9
Q

Loss of one trim air system effects?

A

Tries to maintain all zones at average temperature.

Flight deck may become uncomfortably warm.

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10
Q

Equipment and electronics compartment modes? How is it cooled?

A

2 modes: normal & override.

Uses cabin air drawn over equipment then heated air drawn to either forward outflow valve or cargo heat.

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11
Q

E & E override mode “EQUIP COOLING OVRD” displays when

A 
Switch is off
Both Supply fans fail
Low airflow 
Smoke detected 
FWD CARGO FIRE ARM switch is armed
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12
Q

How is ice detected?

A

2 detector probes. When either Probe detects ice a SECOND time engine anti ice valves open automatically.
After “several” cycles the system commands the wing anti ice on

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13
Q

Wing anti ice works? Inhibited when?

A

Engine bleed air warms 3 mid wing slats.

Inhibited on ground and for 5 mins after take off

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14
Q

Wing anti ice isolation valves open automatically?

A

If a bleed source is unavailable

Bleed duct isolation has not occurred

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15
Q

Wing anti ice automatic operation?

A

WAI set to auto
Valves open when ice detected

IF ONE VALVE STUCK CLOSED THE OTHER WILL AUTOMATICALLY SHUT OFF.

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16
Q

Integrated drive generator IDG automatically powers?

A

Respective main bus if switched on

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17
Q

IDG DRIVE light illuminates when? Eicas message “ELEC GEN DRIVE L or R”

A

Low oil pressure (lower light only)

High drive temperature (higher & lower lights on)

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18
Q

IDG can be electrically disconnected from busses by?

A

Pushing GEN CTRL switch to off:
Opens generator breaker
De energises field

Selecting an external power source before eng shutdown

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19
Q

How many BUGs? When do they automatically power TRANSFER bus?

A

2 BUGS 1 per side.

1 generator fails & APU not available
Or
Either main bus fails

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20
Q

How many BUGs provide power

A

Only 1 at any time, enough to power BOTH transfer busses

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21
Q

PMGs are? And provide power to?

A

Permanent magnetic generators. DC generator permanently connected to back up generator drive shaft. Provide power to LRC flight controls

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22
Q

If PMGs not available backup power sources to DC flight control busses are?

A

Respective main DC busses
Hot battery bus (L & C only)
Individual batteries

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23
Q

RAT AUTO DEPLOYS

A

Loss of power to both AC transfer busses
Both engines fail and C system hydraulic pressure is low
Loss of pressure in all 3 hydraulic systems

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24
Q

APU auto starts?

A

Loss of power on both AC transfer busses

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25
Q

Backup AC electrical system automatically powers one or both transfer busses when?

A

Only one main generator available.
Power to 1 or both main AC busses lost.
Approach mode selected.
System automatically selected after start.

26
Q

Back up AC electrical system transfers power

A

Without interruption & automatically powers selected systems

27
Q

DC electrical system is the primary source of DC power and consists of? And powers?

A

4 TRUs (powered by AC transfer busses)
Powers: L & R Main DC bus
Capt Flt instrument bus
FO Flt instrument bus

28
Q

Auto start system aborts for

A 
Stall
Hung start
EGT fails to raise 
Hot start
Air pressure insufficient 
Starter (duty cycle exceeded or failure)
29
Q

On the ground AUTOSTART won’t attempt a second start for

A

Shaft failure
Air pressure insufficient
No N1
Duty cycle exceeded

30
Q

If no AC power how does the APU get fuel

A

The DC fuel pump in the left main tank

31
Q

Fwd left AC fuel pump provides fuel regardless of switch power. How?

A

Pump energises when APU start switch moved to start.

PRESS light out even with switch in OFF position.

32
Q

When APU running will kick off external power and?

A

Secondary external power becomes AVLBE
Primary external powers right main bus.
APU powers left main bus

33
Q

APU status display shows?

A 
RPM
EGT
OIL PRESSURE 
Oil Temperature 
Oil quantity
34
Q

APU Off selector

A

Closes APU BAI valve
Initiates normal shutdown
Resets auto shutdown logic

35
Q

APU on selector

A

Opens APU fuel valve & inlet door
Activates AC or DC fuel pump
Powers the APU controller

36
Q

APU fault light indicates

A

Fault or fire detected
APU shutdown due to above
Momentarily illuminates on self test

37
Q

Cargo fire detection?

A 
Fwd & aft each have one smoke detector 
Each divided into 3 zones
1 zone = an alert 
If one zone fails the others still work.
Two smoke detector fans in each compartment move air around.
38
Q

Pressing cargo fire ARM switches

A

Arms all 5 fire extinguishing bottles.
Arms selected compartment flow valve.
Turns off fans.
Commands packs to provide minimum airflow.

39
Q

Pulling an engine fire handle? 3-2-1-o

A 
Closes 3 valves: engine fuel
Engine bleed air & hyrdraulic fluid
Depowers 2: reverser isolation valve & depressurises hydraulic pump
Arms 1: fire extinguisher 
O pens generator fields
40
Q

Autopilot is only available in which mode?

A

Normal

41
Q

In normal Mode what envelope protections do you have?

A

Works Autopilot on or off
Stall protection
Over speed protection
Bank angle protection

42
Q

In normal Mode PFCs automatically compensate for:

A

Thrust changes
Configuration changes
Turbulence
Turns

43
Q

Primary pitch trim control switches are inhibited when?

A

The autopilot is engaged.

Pitch trim does not move the control column.

44
Q

Pitch trim moves what? On ground and in air?

A

On ground stabiliser is directly positioned.

In flight PFC moves stab trim.

45
Q

Autoslats deploy? Armed?

A

Auto deploy to full when approaching stick shaker.
Armed when flaps 1-20 (full at 25/30)

Only available in primary mode.

46
Q

Flap/slat load relief in primary mode?

A

Flaps only.
Auto retract to a position that matches speed
Will not extend beyond 5/15/20 until airspeed reduced

47
Q

Fuel jettison nozzle switches when armed do?

A

Opens jettison nozzle valve

Opens both Center tank jettison isolation valves

48
Q

When fuel jettisons TO REMAIN quantity

A

Main tank jettison pumps shut off.
Center Tank jettison valves close.

Standpipe at 11,500lbs in each main tank (23,000lbs MIN!)

49
Q

Center hydraulics pumps are?

A

Primary electric

Demand air driven

50
Q

Center demand hyrdraulic pumps cannot?

A

Operate simultaneously in ON

If both in AUTO both can operate to meet demand.

51
Q

C1 demand pump is dedicated for?

A

Reserve brake system

C2 may be shed

52
Q

LNAV CAPTURES

A

Min 50ft AGL

Within 2.5nm of course

53
Q

Prior to engine start the EICAS displays what messages

A 
5 
HYD PRESS SYS L R C
ENG SHUTDOWN 
FUEL PRESS ENG L R 
BRAKE SOURCE 
AUTO SPEEDBRAKE
54
Q

The PFD & NDs primary source for air data and attitude is?

A

ADIRU

55
Q

The descent path calculated by the FMC is based on?

A

Airspeed & Altitude constraints and the EOD (end of descent point)

56
Q

First constraint on the descent based on?

A 
Idle thrust
Speed brakes retracted 
FMC cruise wind
Wind entries on DES FORECAST
target speed 
Anti ice if required
57
Q

Airplane transitions out of approach mode ?

A

TOGA selected
The airplane lands
Flies beyond the last waypoint of the approach

58
Q

Acceleration height what happens

A

VNAV commands VREF +80

Automatic change from TO thrust to CON thrust

59
Q

If the RAT has been deployed

A

It cannot be stowed during flight

60
Q

Can the RAT be deployed on the ground?

A

YES

61
Q

How many air conditioning zones?

A

7 including F/D

62
Q

Fuel imbalance white pointer displays

A

When main tank differs more than 1,000lb

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