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TILT > RANDOM Questions > Flashcards

RANDOM Questions Flashcards

1
Q

What is mounted to the MWGB? What is driven by the MWGB?
(1,2,3, And 4; R-squared, O)

A

CFG1 (D), SDC (D), HYD3 (D), APU, VFG4 (D), RPU, Rotor Break,
Oil Cooler (D)
(D) = Driven by

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2
Q

Functions of the DRIVE SYS

A
  • transmit torque form the engines to the proprotors
  • provide synchronization of the proprotors & single engine operation of the proprotor sys
  • POWER GENERATION FOR ELECTRICAL, PNEUMATIC, & HYDRAULIC POWER
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3
Q

PRGB components (4)

A
  • Proprotor mast
  • Integral lubrication sys
  • Input Quill Assembly
  • Breather Assembly
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4
Q

The LEFT TAGB drives the # ___ VFG and the # ___ HYD Pump

A

No. 3 VFG ; No. 1 HYD Pump

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5
Q

Drive sys components (9)

A
  • PRGB
  • ELS
  • TAGB
  • NACELLE HEAT EXCHANGER
  • MWGB
  • PYLON SUPPORT ASSEMBLY & CONVERSION SPINDLE
  • ICDS
  • ROTOR BREAK
  • DSIU
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6
Q

INTERIM POWER: allows Nr up to ___% and Qm up to ___%
ARMED: ___KCAS, ___ deg Nacelles
ON: ___KCAS, ___ deg Nacelles

A

104%Nr ; 117%Qm
ARMED: >60KCAS, <70deg Necelles
ON: <55 KCAS, >70deg Nacelles

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7
Q

EAPS
AUTO mode: ON ___ kts / OFF ___ kts

A

Engine Air Particle Separator
ON <60kts / OFF >70kts

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8
Q

OIL CONDITIONING UNIT COMPONENTS
(at least the top/main 3)

A

Oil filter (3-micron)
Fuel oil heat exchange
Ail/oil separator (removes ~90% of air)
Oil Temp sensor
Debris Sensor
Oil Level sensor (bottom of oil tank)
Engine gulping - yellow region of oil level displayed as green for first 15mins of weight off wheels

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9
Q

FADEC will initiate an engine shutdown when: (6)

A
  • ECL aft of START
  • Ng/Np overspeed
  • No light-off detection at engine start
  • Failure to relight on flame-out detection
  • Failure of second FADEC (dual FADEC incapable) & Ng speed <53%
  • MGT >779C during a start
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10
Q

MAJOR ASSEMBLIES OF THE ENGINE

A
  • TORQUEMETER ASSEMBLY
  • GAS GENERATOR ASSEMBLY
  • POWER TURBINE ASSEMBLY
  • ACCESSORY DRIVE GEARBOX ASSEMBLY
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11
Q

To prevent thermal lockup, normal engine shutdown procedure includes a ___min cool down to a stable MGT less than ___C at flight idle or below.
BONUS: Describe thermal lockup.

A

2 mins ; 537C MGT
Thermal lockup is identified by an inability to turn the compressor rotor by hand, or to achieve an Ng increase when cranking the engine

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12
Q

Each engine is controlled by a dual-redundant electronic control sys comprised of ___ and ___.

A

FADECs and FPMUs

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13
Q

COANDA is AUTO activated:

A

Qe <28%
Ng >67%
Nacelles >52deg
MGT <593C
Weight ON Wheels

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14
Q

What does the power turbine do?

A

converts gas energy to mechanical energy

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15
Q

Accessory Drive Gearbox Assembly components (FESPA)

A

FPMU (fuel pressure controls hydraulically powered CVG actuator)
Engine oil pump & regulator assembly (oil pressure sensor)
Starter (primary Ng) (Motors 26%) (Drops at 57%) (Powered by HYD 3)
PMA (Secondary Ng) (Powers ignition sys at 10%, FADECs at 50%
AVV (vents all air from fuel) (Open 2.5% Ng, Close 25% Ng)

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16
Q

Power Turbine Assembly components (PPGS14)

A

Power turbine forward shaft
Power turbine rotor (Np)
Gas generator turbine rotor (Ng)
Speed Sensor (Np)
14 Thermocouples (MGT) (7 each FADEC)

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17
Q

Gas Generator Assembly (AAAABDI216)

A

ABC valve (14th stage) (controls ABVs)
ABV Valve (8th stage)(OPENS at 2.5% Ng, CLOSED at 54% Ng)
Air Inlet Housing (bottom strut heated by oil) (lube starter shaft)
Axial Flow Compressor (14 stages)
Bleed Air Port - COANDA, ENG Anti-ice (14th stage)
Diffuser
IGV (1), CVG (5), Stationary (8)
2 Spark igniters
16 Fuel nozzles

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18
Q

Torquemeter Assembly components (METR)

A

Monopole sensors (Qe) (Secondary Np) (Magnetic Sensors)
Engine mount
Torque shaft
Reference shaft

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19
Q

If any FADEC fails, certain FCC processed FADEC information will be disabled.
Once the FADEC failure is clear or FADEC B override switch is initiated, pressing the ___ will reestablish the normal FADEC processing.

A

PFCS FAIL RESET

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20
Q

CFG 1/2 are rated to ___ kVA

A

40 kVA

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21
Q

What is ETL and at what airspeeds is it achieved?

A

Effective Translational Lift ; 20-30 KCAS

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22
Q

Chip detection/burn - how many in:
- ENG
- PRGB
- TAGB
- MWGB
How many total?
What are the chip detectors/burns monitored by?

A

ENG - 1/0
PRGB - 3/3
TAGB - 2/Unlimited
MWGB - 1/Unlimited
15 total (1 on APU, 1 on SDC)
Monitored by DSIU

23
Q

FFR indicator changes to Stall meter/AOA indicator at ___deg Nacelles, only if ___.

A

<35deg Nacelles ; only if there is no FFR caution

24
Q

VFG 3/4 are rated to ___kVA
What do they provide power for?

A

50/80 kVA
Provide power for electro-termal anti-icing/de-icing, avionics cooling, & fuel pumps

25
Q

Battery:
What kind of battery?
Provides power for?
Low voltage indication comes on at ___ volts
Battery will be disconnected UNLESS one of these 4 conditions (name those conditions).

A

24-ampere-hour sealed lead/acid battery
Provides for APU or ground maintenance
Low voltage indication comes on at <23.2 volts
BATT disconnection UNLESS one of these conditions exist:
- CFG 1 or 2 is operating
- External power is being supplied
- WOW signal is absent
- APU start sequence has been initiated

26
Q

APLN mode airspeed limitation

A

84% Nr ; 280 KCAS
100% Nr ; 220 KCAS

27
Q

HYD 3 Utility System (CREWCREWLAN)

A

Cargo Ramp/Door
Rotor brake
Engine starter
Wheel brakes
Cargo winch
RPU
EAPS
Wingstow/Lockpins
Landing gear
ARRP
NWS

28
Q

The right TAGB drives the #___CFG and the #___ HYD pump.

A

2 CFG ; #2 HYD pump

29
Q

Each proprotor assembly is provided electrical power through what component?

A

Slip Ring Assembly

30
Q

What is the purpose of the DSIU?

A

Monitors and controls the ELS
Monitors debris sensors in the PRGBs, TAGBs, MWGB, and both engines

31
Q

The APU is disengaged from the MWGB at ___% Nr

A

84% Nr

32
Q

What component changes the angle of drive and transmits power from the same side PRGB to the mid-wing gearbox and to the opposite TAGB in the event of a single engine failure?

A

Pylon drive shaft (bevel section of the TAGB)

33
Q

What provides pressurized compressed air to the ECU and what is that air pressurized to?

A

SDC ; 40psi

34
Q

What is the compressed air produced by the SDC used for? (5)

A
  • aircraft air-conditioning
  • over-pressurization
  • OBIGGS/OBOGS
  • pneumatic wing de-icing
  • airflow for particle scavenging for the avionics cooling system
35
Q

What are the steps for EMERGENCY SHUTDOWN?
(ETRABE)

A

ECL - OFF
T-HANDEL - ARM
ROTOR BREAK - ON unless the reason for the emergency shutdown is due to an ICDS fail or mid-wing fire or mid-wing accessories
APU - STOP
BATTERY - OFF
EGRESS - AS REQUIRED

36
Q

How often does the GPS update the INS?

A

every second

37
Q

When does the EELS come on when armed?

A

NR <20%

38
Q

APU - EMERG RUN/ENGAGE allows the ______ to override a ________ (except turbine overspeed/underspeed) which would otherwise cause an emergency shutdown.

A

ECU ; detected BIT fault

39
Q

The ELS activates anytime either PRGB oil pressure drops below ______ psi.

A

30 psi

40
Q

What gearbox drives the SDC?

A

MWGB

41
Q

What does MAP stand for?

A

MANEUVER SEVERITY - REDUCE
AIRSPEED - <200 KCAS
PFCS - RESET

42
Q

The PMA supplies power to what components?

A
  • FADECS
  • Ignition excitors
  • FPMU
  • other engine electrical components
43
Q

What system provides info to both the operator and maintainer regarding vibration, structural life, and rotor track/balance?

A

VSLED (Vibration Structural Life and Engine Diagnostics

44
Q

Power required for vertical take-off and landing terminal operations training:

A

Approach:
-Clear escape route: OGE Hover power
-Restricted escape route or potential LVA: OGE +5%

Departure:
-Clear escape route: 30ft hover power
-Restricted escape route or LVTO: OGE power

45
Q

At what percent, NR, should number 1/2 generator come online?

A

72% NR

46
Q

What is the normal oil pressure range for the MWGB?

A

40-65 psi

47
Q

The FADEC requires ______ secs after aircraft power application to complete FADEC power-up self-test.

A

10 seconds

48
Q

Power steering lis lost if the nose wheel is outside the ______ deflection limit.

A

+- 75deg

49
Q

When does the radar tape automatically declutter and redisplay

A

Above 1,000 ft
Below 950 ft

50
Q

When does the altitude digital readout automatically declutter

A

Above 10,000 ft
Redisplayed below 9,950 ft

51
Q

Maximum altitude the FE summary CDU control layer will display

A

30,000 ft

52
Q

Thunderstorm limits:

A

At or Above FL230 ; Avoid by 20nm
Below FL230 (not low level) ; Avoid by 10nm
Low Level ; Avoid by 5nm

53
Q

At what Ng does the APU stabilize

A

55%

TILT (28 decks)

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