What is the cabin altitude limit control on the outflow valve?
14,000 ft
How do the outflow valves control pressurization?
By air exhaust
If you want to evacuate smoke quickly out of the aft lower compartment, what should you set the outflow valve switch to?
FWD CLOSED
Air from which system pressurizes the aircraft
Air Conditioning system
Is the depressurization controllable if emergency depressurization is used?
no
Will the outflow valves maintain cabin altitude if AC and DC power is lost?
Yes
The cabin altitude warning system resets below what altitude?
10,000 ft (+ or - 1250 for it to go off)
At what PSId do the outflow valves act as a safety and open?
9.4 PSId
What happens when emergency depressurization switch is pressed?
both outflow valves go full open, flow rate valves close, and the 14,000 ft limiter is overridden.
What power sources does the cabin pressure controller use?
115 AC in auto
28 DC in manual
What is the most efficient cabin pressure altitude for forced air cooling?
5000-8000 ft
When do you move the FAC UNPRESS OB switch to OB Valve
OB unsafe light + no depress
Is the mission radar cooled by the forced air system?
no
Maximum allowable temp for the GINS on (ground)?
100F
What avionics power disconnect requires FWD Forced Air
Comm Fwd
What switch allows the cabin pressure limiter to go over 14000 ft?
UNPRESS/OU Valve
Avionics power theUHF ADF, UHFG, and on the ____
Comm Fwd
Avionics power #1 HF radio on the ____
Comm AFT
Before turning on air cooling on the ground you must observe ____
Cabin door open
Normal ground ops at forced air fan config?
one fan on low speed on
controls the auto air entering the AC pack
Flow control valves
Temperature of gasper air?
Same as AC pack
Air cycle fail in flight
Heat Exchange only
AC air can be supplied by AC ground cart by...
bypass zone temperture controls + AC pack
number of AC control zones
4
What are three modes of AC system?
Auto, Manual, Heat Ex only
If in auto mode for temp control, what controls temp?
Coolest temp
if primary flow control valve fails
FE doent have to select alternate
Regardless of altitude control valve position, if the primary opens the alternate ____
closes.