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Turbine Engines 2 > 2nd Review > Flashcards

2nd Review Flashcards

1
Q

What are the three modes of operation for Fuel/Oil Heat Exchangers?

A

HOT Mode COLD Mode Differential Pressure Bypass Mode

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2
Q

What is occurring in COLD Mode?

A

Engine OIL IS COLD, therefore the thermostatic bypass valve OPENS and most of the cold oil bypasses the cooler

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3
Q

What is occurring in HOT Mode?

A

Thermostatic bypass valve closes to route the oil through the oil cooler

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4
Q

What is occuring in the BYPASS/DIFF PRESS Mode?

A

The engine oil cooler is clogged and the higher oil pressure on the upstream (Oil inlet) side of the Differential Pressure Valve forces valve to open position

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5
Q

What does the SOAP test do?

A

Spectrometric Oil Analysis Program

  • Collects engine oil sample 5-30 minutes after engine shutdowm
  • Oil is burned, the photo multiplier tubes are used to check for metal particles
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6
Q

How many Magnetic chip detectors minimum per scavenge line?

A

1

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7
Q

What are the 3 types of thrust reversers?

A

Bucket

Clamshell

Cascade

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8
Q

What kind of Thrust Reverser is this?

A

Bucket Type

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9
Q

What kind of thrust reverser is this?

A

Clamshell

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10
Q

What type of thrust reverser is this?

A

Cold stream Cascade

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11
Q

What does the Thrust Reverser Interlock system do?

A

Stops pilot from using Reverse until throttles are idle

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12
Q

Whate are the 4 Different designs of FCU’s?

A
  • Hydromechanical
  • Hydropneumatic
  • Supervisory EEC
  • FADEC
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13
Q

What does TSO stand for?

A

Time Since Overhaul

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14
Q

TBO?

A

Time Between Overhaul

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15
Q

TTSN?

A

Total Time Since New

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16
Q

ECTM?

A

Engine Condition Trend Monitoring

17
Q

How do we monitor Engine Vibration?

A

Using transducers that when vibrate, produce voltage

18
Q

What do Oil Tank Scuppers do for us?

A

Prevents oil spills when servicing

19
Q

What powers/controls the FADEC?

A

EEC

20
Q

How does a duplex nozzle work?

A

Primary and secondary spray pressures controlled outside the nozzle. Spray pattern depends on pressure

21
Q

How does a simplex nozzle work?

A

Always fed by one fuel line, single spray pattern, has a flow divider that depends on fuel press.

22
Q

What is the function of a Wing SOV?

A

Shuts off wing fuel source

Turbine Engines 2 (10 decks)

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