CAE Written Questions Flashcards
(31 cards)
You receive an IDG 1 Caution Message and a “FAULT” indication on your IDG switchlight. What does this indicate?
The oil in the CSD has overheated or the oil pressure has dropped (HOT/LOP)
Which AC Buses power the battery chargers?
AC Utility Bus 1 & 2
When the ADG deploys, it supplies power to which hydraulic pump?
ACMP 3B
What does the Engine Indicating and Crew Alerting System (EICAS) provide?
- Automatic system monitoring
- Integration of system information
- Color logic for presentation of minimum/maximum limits
High-pressure air from the 10th Stage of compression could easily damage the packs. How is this prevented?
A Pack Pressure Regulator Shut-Off Valve (PRSOV) is used to reduce the bleed air pressure prior to entering the pack.
How is the output temperature of the Air-Conditioning Pack regulated?
The Pack Temperature Controllers position the dual-bypass valves to maintain the selected output temperature.
The cooling air for the pack heat exchangers is supplied by:
Ram Air - taken from an air scoop at the base of the vertical fin, assisted on the ground by a mechanical fan driven by the Air Cycle Machine.
How will the APU ECU respond to a rise in EGT?
The ECU will modulate the LCV proportionately towards closed to reduce the amount of air bled from the APU compressor.
A fire indication in the pylon will be reported as what on the EICAS?
JETPIPE OVHT
Is the APU/XFLOW PUMP AC or DC powered?
DC, powered by the DC Battery Bus
How are Hydraulic Systems 1 and 2 cooled?
An air/hydraulic fluid heat exchanger, using ram air in the air and an electric fan on the ground.
What monitors WoW, the nose door, and the position of the landing gear?
PSEU
What is the difference between a WING OVHT warning and an ANTI-ICE DUCT warning?
- WING OVHT indicates a wing overheat
- ANTI-ICE DUCT indicates a bleed air leak from the anti-ice ducts
If an APU FAULT occurs in flight and the APU does NOT shut down, what will most likely occur?
60 seconds after landing, the APU control logic reverts to ground mode and the APU protective shutdown will occur.
What would inhibit FMS AUTOTUNE?
- Green Needles
- FMS Tune Inhibit
- DME Hold
Which Hydraulic Pumps are AC pumps?
1B 3A 3B 2B
Which Hydraulic Pumps are Engine-Driven?
1A 2A
Which AC Bus does the Hydraulic 3B pump need to operate?
AC Bus 1
Which AC Bus does the Hydraulic 3A pump need to operate?
AC Bus 2
While flying, you experience an AC 2 AUTOXFER caution message. What does this indicate?
Auto Transfer has failed which may indicate the system is isolating a faulted bus.
How is oxygen provided to the passenger cabin.
Chemical oxygen generators
What does the APU LCV do?
- Modulate towards ‘closed’ following a rise in APU EGT
- Will close automatically if 10th stage bleed air switch positions place the APU under threat of backflow
What is an IRS and how does it work?
Inertial Reference System - Uses laser ring-gyros to determine displacement from an original set position.
Normally, how many Flight Directors are active; during T/O, G/A, Approach?
Normally only one is active
