FIre and Overheat protection

Question 1

What type or fire protection do we have on the CRJ

Answer 1

2 Types
Protection and Detection

Question 2

What Systems have dual Loop detection

Answer 2

APU and Engines

Question 3

What system has single loop detection

Answer 3

Main Landing Gear

Question 4

The APU has how many modes of Opperation

Answer 4

2 Modes Ground and in flight

Question 5

How does the ground mode work for the APU

Answer 5

It works that when a fire condition is detected the APU shuts down automatically and 5 seconds later the APU fire bottle automatically discharges.

Question 6

Inflight the APU works

Answer 6

When a fire condition is detected, the APU shuts down automatically and the flight crew mus discharge the bottle.

Question 7

When the APU fire swithlight is pressed

Answer 7

-arms the APU Bottle squib
-Bottle armed push to discharge swithc lights
-APU fuel feed shutoff valve closes
-apu fire shutoff relay is energized to shut down the APU by closing the fuel solenoid valve
-APU LCV closes
-APU Generator is tripped off

Question 8

How is the cargo bays protected

Answer 8

Smoke detection and Fire surpression

Question 9

In the forward cargo bay how many smoke detectors

Answer 9

3

Question 10

Aft cargo bay has how many smoke detectors

Answer 10

2

Question 11

How does the fire suppression work in the cargo bays

Answer 11

Both squibs on both bottles fire at the same time but one bottle discharges immediately. The second bottle discharges slowly.

Question 12

Does the Lav have fire protection

Answer 12

Yes. Smoke detection and Fire extinguishing in the lav waste bins