EMB 145 Systems QGT Test Review Flashcards
Pass the QGT
When does the Cockpit Voice Recorder (CVR) power on?
When aircraft powre is established
How long does the CVR record for?
A 2 hour loop
How many generators does the aircraft have?
5 (2 per engine and 1 for the APU)
What is the difference between the APU and engine generator?
The APU generator is a starter generator
What kind of generators are on the engines?
28 VDC, 400 Amp generators
When would you press the generator buttons?
To check the actual battery voltage and whenever the QRH mentions to do so
When does the APU come online?
7 seconds after reaching 95% RPM
When are the Shed Busses powered?
- 3 or mor generators online
- 1 generator online with the shed bus switch in override
- whenever the GPU is powering the aircraft
If the AC button is pressed in, what does that do?
Turn off the AC bus
How many batteries do we have on the aircraft? (For Power)
3 (2 NiCad 24V, 44 amp hour batteries and a 24V, 5 amp hour lead acid back-up battery)
What does the back-up battery power?
The back-up bus
What happens if the back-up battery button is pushed in?
It prevents the back-up battery from receiving a charge
What does the back-up battery power?
The EDL and GCU’s
What controls the electrical system?
- The EDL (electrical distribution logic)
- 2 channel computer that controls the entire electrical system, load shedding, load sharing and fault protection.
How many batteries in the EMER light and how long will they provide power for?
4 batteries and power provided for approx 15 mins
When does the emergency light charge?
Only when in the armed position
What tank does the APU draw fuel from?
From the #2 tank / right tank
How can you tell if you have a fuel pump failure?
The other 2 fuel pumps wil start cycling on and off (you will hear the relay) and will do so until one of the other pumps is selected
Can fuel be x-fed from tank to tank?
No, tank to engine only
How is the x-feed selector placed?
Turn the x-feed selector to the low side tank (Right low? right tank)
What happens when the Red Fire Ext Handle is pulled ?
(HALF) is shut off
- Hydraulic Pump Valve
- Air Bleed Valve
- Lip Engine Anti-Ice Valve
- Fuel Pump Valve
What happens when the fire handle is rotated?
The fire extinguishing agent is released into that engine compartment
How many fire bottles are there for the engines?
2 bottles for both engines (Yes you can use both bottles on 1 engine) you have to wiat 30 secs between each fire bottle application
How many fire bottles for the APU?
1