Anti-Ice & Fire Protection

Question 1

Anti Ice systems include (5)

Answer 1

Window heat
Wipers
Probe heat 
Engine AI
Wing AI

Question 2

Wing AI control valves operated by?

Answer 2

AC motor operated

Question 3

Engine Fire Warning Switch pulled up

Answer 3

• ARMS one discharge squib on each extinguisher
• CLOSES fuel, hyd shutoff, and engine bleed vales
• DISABLES thrust reverser
• TRIPS gen control relay and breaker
• DEACTIVATES engine driven hyd pump LOW PRESS lights
• ALLOWS engine fire switch to rotate

Question 4

Fire detection is provided for what systems?

Answer 4

APU, both engines and lower cargo compartment

Question 5

Engine fire detection powered by

Engine fire protection powered by

Answer 5

Detection - battery bus

Protection - hot battery bus

Question 6

Pulling APU fire warning switch up

Answer 6

• Provides backup for auto shutdown feature
• deactivates fuel solenoid and closes APU fuel shutoff valve
• closes APU bleed air valve
• closes APU inlet door
• trips APU generator
• allows APU fire switch to be rotated
• arms APU fire extinuisher squib

Question 7

FWD and AFT cargo compartment smoke detection

Answer 7

• dual loop system similar to engine overheat
  if activated cockpit indications include;
• warning bell
• FIRE WARN lights
• FWD/AFT cargo fire warning lights on

Question 8

Main deck cargo compartment detection

Answer 8

• 12 single loop smoke detectors
  if activated cockpit indications include;
• CARGO SMOKE lights
• associated smoke detector light on

Question 9

Cargo compartment fire extinguishing

Answer 9

• single fire extinguisher bottle is located in AC mix bay on FWD wing spar
• once armed system discharges totally
• cargo fire DISCH light illuminates once bottle is discharged

Question 10

FIRE FAULT/INOP system test

Answer 10

• 2 MASTER CAUTION
• OVHT/DET system light
• FAULT light
• APU DET INOP

Question 11

OVERHEAT / FIRE test

Answer 11

• fire warning bell
• both FIRE WARN lights
• both MASTER CAUTION
• OVHT/DET
• both engine fire switches light
• WHEEL WELL light
• (on the ground) APU fire warning horn and APU fire warning light in wheel well

Question 12

CARGO FIRE test

Answer 12

• fire warning bell
• both master FIRE WARN lights
• extinguisher lights on
• FWD and AFT cargo fire warning lights on
• cargo fire DISCH light on

Question 13

Cargo compartment smoke detection

Answer 13

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