Study Guide, Engine APU FM 6.70 Flashcards
1) 757/763: There are two engine idle speeds: minimum and approach idle. One way
approach idle is activated automatically is when:
a) Trailing edge flaps are extended beyond position 20
b) Glideslope capture
c) Continuous ignition is selected to ON
d) Both throttles at idle and speed brakes are deployed
a) Trailing edge flaps are extended beyond position 20
2) 757/763: Approach idle provides better engine acceleration for go-around or reverse
thrust. After a ___ second delay following touchdown, the engines decelerate to
minimum idle to minimize landing distance.
a) 3
b) 8
c) 5
d) 10
c) 5
3) 763: When the engine is operating, the engine electronic engine control (EEC) is
powered by:
a) Standby AC and DC busses
b) A dedicated permanent magnet alternator (PMA)
c) Left main AC bus
d) Hot battery bus
b) A dedicated permanent magnet alternator (PMA)
4) 757: Each engine electronic engine control (EEC) is powered by:
a) Dual dedicated generators (DDG)
b) Standby AC and DC busses
c) Left main AC bus
d) Hot battery bus
a) Dua dedicated generators (DDG)
5) 764: Anytime the engine is running, the engine electronic engine control (EEC) is
powered by:
a) Permanent magnet generator (PMG)
b) Standby AC and DC busses
c) Left main AC bus
d) Hot battery bus
a) Permanent magnet generator (PMG)
6) 763: If both channels in an electronic engine control (EEC) fail, the associated engine
will:
a) Revert to its backup system, hydro-mechanical operation
b) Maintain above idle speed
c) Decelerate to and remain at minimum fuel flow
d) Maintain its current speed until the associated EEC switch is placed in the OFF
position
c) Decelerate to and remain at minimum fuel flow
7) 757/763: How can continuous ignition and approach idle be selected without using the
engine anti-ice switches?
a) By placing the wing anti-ice switch to ON
b) By selecting flap position 1, 5 or 15
c) By performing a normal approach
d) Both cannot be selected unless the engine anti-ice switches are selected on
c) By performing a normal approach
8) 757: The thrust system consists of a hydromechanical engine fuel control with an
electronic engine control (EEC) unit. Is any overspeed protection provided for the N2
rotor?
a) The N2 rotor has protection but only during reversing operations
b) There is no N2 overspeed protection
c) There is protection for the N2 rotor provided the EEC is operating normally
d) There is always N2 overspeed protection during all phases of engine operation
b) There is no N2 overspeed protection
9) 764: If both channels in an electronic engine control (EEC) fail, the associated engine:
a) Reverts to hydro-mechanical operation
b) Reverts to the N2 control mode
c) Decelerates to and remains at minimum fuel flow
d) Performs an automatically controlled engine shutdown
d) Performs an automatically controlled engine shutdown
10) 767: According to the graphic, the left electronic engine control alternate mode (ALTN)
switch light has illuminated. This indicates:
a) Automatic reversion or manual selection to the alternate mode
b) Reverse thrust has no overspeed protection
c) Maximum thrust red-line protection is no longer available
d) The EEC can no longer control engine speed and decelerates to and remains at
minimum fuel flow
a) Automatic reversion or manual selection to the alternate mode
11) 757/763: What does the amber REV light displayed above each EPR indication indicate?
a) The reverser is fully retracted
b) The reverser is fully deployed
c) The reverser is in transit
d) A fault is detected in the reverser
c) The reverser is in transit\
12) 757: The thrust control system includes an electronic limiter control (ELC) unit. What is
its primary purpose?
a) N2 overspeed protection
b) N3 overspeed protection
c) N1 overspeed protection
d) EPR overboost protection
c) N1 overspeed protection
13) 757: The thrust system consists of a hydromechanical engine fuel control with an
electronic engine control (EEC) unit. The EEC sets thrust by controlling:
a) N1 based on thrust lever position
b) N2 based on thrust lever position
c) EPR based on thrust lever position
d) N3 based on thrust lever position
c) EPR based on thrust lever position
14) 757/763: The thrust management computer (TMC) calculates a reference _____ based
on existing pressure altitudes and ambient temperature data from the air data system.
a) N3
b) N2
c) N1
d) EPR
d) EPR
15) 757: The FUEL CONTROL switches have three positions: RUN, RICH, and CUTOFF.
When should the RICH position be used during engine start?
a) EGT 0°
b) EGT > 0°
c) After an aborted engine start
d) EGT < 0°
a) EGT 0°