DQ-124 Flashcards
1
Q
Describe the primary functions of the Digital Electronic Control (DEC).
A
- Isochronous Np Gov. DEC maintain Np ref.
- Np ref from cockpit (INCR/ DECR)
- Fault indication
- Load sharing, TQ limit 5%
- Transient droop improvment
- History counter
- Hot start prevention
- ODV shut fuel when
- TGT 900
- Ng
- Np
- ODV shut fuel when
- Overspeed protection
- ODV shut fuel when
- Np 120 +/- 1%
- ODV shut fuel when
- TGT limiting
- 866 ºC (limits fuel)
- 891 ºC (contingency pwr)
2
Q
- Describe the primary functions of the engine alternator
- and the indication(s) of an engine alternator failure.
A
- The engine alternator supplies ac power to the ignition exciter and DEC (or EDECU) unit. It also supplies a signal to the Ng SPEED cockpit indicator. All essential engine electrical functions are powered by the alternator.
- When the alternator Ng signal is interrupted, a loss of the associated engine Ng indication, and an ENG OUT warning and audio will occur.
3
Q
Identify the following cyclic stick grip switches:
A
A: Cargo hook
B: Stick trim
C: GO around
D: Trim release
E: ICS Radio
F: Panel light kill sw
4
Q
Identify the following collective stick grip switches
A
A: Landing light
B: Hook emer rel
C: Searchlight
D: Servo shutoff
E: Engine speed trim
F: HUD control sw.
5
Q
Given these departure conditions what is the Maximum Torque Available dual/single engine and explain how it is calculated?
TEMP 35 Degrees
PA 2000’
ETF 1.0/.92
ATF .96
A
- Dual
- Use 7A-11 10 min limit after TQ ratio reduction (@ 35 no change)
- 113% x .096 (ATF) = 108%
- Singel
- Use 7A-10 2,5 min limit after TQ ratio reduction
- 118 x 1.0 = 118%
- 118 x 0.92 = 108%
- Use 7A-10 2,5 min limit after TQ ratio reduction
6
Q
What are the four principles of Risk Management (RM)?
A
- The principles of RM are:
- Integrate RM into all phases of missions and operations.
- Make risk decisions at the appropriate level.
- Accept no unnecessary risk.
- Apply RM cyclically and continuously.
