6 - Fire Protection

Question 1

1. (DSC-26-20) What additional external warnings are activated in case of an APU fire (on the ground)?

(a) Red APU fire light comes on and an external warning horn sounds
(b) an external warning horn sounds
(c) A fire bell rings
(d) No additional warning

Answer 1

(a) Red APU fire light comes on and an external warning horn sounds

Question 2

2. (DSC-26-20) Where are the engine fire detectors located?

(a) On the fan and the turbine
(b) On the pylon nacelle, the engine core and the fan section
(c) On the engine core and the gearbox
(d) On the engine fan, core and tailpipe

Answer 2

(b) On the pylon nacelle, the engine core and the fan section

Question 3

3. (DSC-26-20) The agent pushbutton is active when:

(a) the corresponding DISCH light is illuminated
(b) the engine fire PB illuminates
(c) the engine fire PB is pushed and released out by the pilot
(d) always active

Answer 3

(c) the engine fire PB is pushed and released out by the pilot

Question 4

4. (DSC-26-20) What does the test PB on the engine fire panel verify?:

(a) only the detection system loop circuit integrity
(b) the squib circuits and the bottle pressure of the extinguishing system (c) the operation of both the fire detection and extinguishing systems
(d) the operation of the fire warning light

Answer 4

(c) the operation of both the fire detection and extinguishing systems

Question 5

5. . (DSC-26-20) The engine and APU fire extinguishing systems include:
   (a) 1 extinguisher bottle for each engine, 1 extinguisher bottle for the APU
   (b) 2 extinguisher bottles for the engines, 2 extinguisher bottles for the APU
   (c) 2 extinguisher bottles usable in either engine, 1 extinguisher bottle for the APU
   (d) 2 extinguisher bottles for each engine, 1 extinguisher bottle for the APU

Answer 5

(d) 2 extinguisher bottles for each engine, 1 extinguisher bottle for the APU

Question 6

6. (DSC-26-20) How is the extinguishing system controlled?

(a) by the fire detection unit (FDU)
(b) by the crew using the AGENT PBs on the overhead panel
(c) automatically when a fire is detected by ECAM
(d) by the Flight Warning Computer (FWC)

Answer 6

(b) by the crew using the AGENT PBs on the overhead panel

Question 7

7. (DSC-26-20) When the No.1 engine fire PB is released out, which valves close?
   (a) fuel crossfeed valve
   (b) no.1 LP fuel valve, hydraulic fire valve, engine bleed valve and pack flow control valve
   (c) no.1 HP fuel valve, hydraulic fire valve, engine bleed valve and pack flow control valve
   (d) no.1 LP fuel valve, HP fuel valve and engine fuel return valve

Answer 7

(b) no.1 LP fuel valve, hydraulic fire valve, engine bleed valve and pack flow control valve

Question 8

8. (DSC-26-20) How is an APU fire on the ground normally extinguished?

(a) from the APU fire panel
(b) automatically
(c) from the external power panel
(d) using an external portable fire extinguisher

Answer 8

(b) automatically

Question 9

9. (DSC-26-20) How can a thermal discharge of the APU fire bottle be detected when no electrical power is connected?:

(a) indication on the ECAM APU page
(b) detected by the Fire Detection Unit
(c) by the red disc indicator on the outside of the rear fuselage
(d) no indication available until AC power available

Answer 9

(c) by the red disc indicator on the outside of the rear fuselage

Question 10

10. (DSC-26-20) How many fire detection loops in the APU fire detection system?:

(a) one
(b) two
(c) three
(d) none

Answer 10

(b) two

Question 11

11. (DSC-26-20) What systems are affected when the APU fire PB is pushed out?:

(a) fuel (LP fuel valve closes), electrics (APU generator deactivated)
(b) air (APU bleed valve closes), electrics (APU generator deactivated)
(c) fuel, air, electrics
(d) no systems affected until APU master switch is off

Answer 11

(c) fuel, air, electrics

Question 12

12. (DSC-26-20) When the engine fire PB is released out, which systems are affected:

(a) fuel, electrics, air
(b) fuel, hydraulics, air
(c) fuel, hydraulics, electrics, air
(d) electrics, hydraulics, air

Answer 12

(c) fuel, hydraulics, electrics, air

Question 13

13. (DSC-26-10) When the APU fire PB is released out:

(a) the APU generator is not affected
(b) the APU generator continues to supply
(c) the APU generator is energized
(d) the APU generator is deactivated

Answer 13

(d) the APU generator is deactivated

Question 14

14. (DSC-26-10) The SQUIB light on the AGENT PB illuminates white when:

(a) a fire or overheat is detected
(b) the flight crew pops the fire PB
(c) the agent has fully discharged
(d) the ECAM fire warning appears

Answer 14

(b) the flight crew pops the fire PB

Question 15

15. (DSC-26-20) The DISCH light on the AGENT PB illuminates amber when:
    (a) the flight crew pops the fire PB
    (b) a fire or overheat is detected
    (c) the agent is ready for use
    (d) the agent has fully discharged

Answer 15

(d) the agent has fully discharged