How is the DHE (Dual Heat Exchanger) provided with air during ground operation?
Answer
By an electric fan via the dorsal scoop
Card 143
Question
What is the purpose of the TCV (Temperature Control Valve)?
Answer
To regulate what mixing ratio of cool air from DHE and warm air from the ECS
Card 144
Question
What is the temperature range in each zone?
Answer
15-30 degrees
Card 145
Question
What is the requirement to run the electric air conditioning system?
Answer
QPM, Eng Gen, or GPU
Card 146
Question
What is the VCS (Vapor Cycle System)
Answer
A system where a refrigarant is passed in a closed system and which is cooled by expansion and compressed by a compressor in the rear compartment
Card 147
Question
If Emergency RAM Air is opened, is it possible to close it in flight?
Answer
No
Card 148
Question
For how long does the bleed overheat have to persist to have a CAS message posted?
Answer
10 seconds
Card 149
Question
What is the temperature threshold which will triger a leak in the Rear fuselage, right over-wing fairing and forward belly fairing
Answer
85 degrees
Card 150
Question
What is the temperature threshold which will triger a leak in the Pylon area?
Answer
130 degrees
Card 151
Question
What is the redundancy of the Fire warning channels?
Answer
There are two channels, one goes directly to the glareshield mounted indications, the second channel routes directly to the UMS.
Card 152
Question
How does the detector loop of the PC-24 work?
Answer
The detector consist of a sealed gas-filled tube which operates on the principle of gas expand with increase in temp and triggers a warning over a set-limit, both for overpressure and underpressure (leak)
Card 153
Question
What is the lenght of the fire detection loop?
Answer
4.2 m
Card 154
Question
How many pressure switches are the in the fire detection system?
Answer
Three
Card 155
Question
When is a fire detect signal triggered?
Answer
When any 5 inch segment reaches a temp of 510 +-40 degrees.
Card 156
Question
How many halon bottles installed?
Answer
Two
Card 157
Question
Does any systems interact with the triggering of the Extinguisher button?
Answer
For the first shot, it is triggered directly by the extinguish switch, then the UMS takes authority of the second shot and introduce a delay of 30 sec
Card 158
Question
What is the time delay between Engine isolation and first shot being armed?
Answer
5 sec
Card 159
Question
What happens during "Engine Isolation"
Answer
Fuel SOV is closed, Bleed Air SOV is closed and fire extinguishers are armed.
Card 160
Question
What does the "EMPTY" caption on the Fire Extinguisher Switch mean?
Answer
That both bottles are empty
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