Fire Protection / Warning Systems

Question 1

Conditions that trigger a takeoff configuration warning

Answer 1

• TE Flaps are not in flaps 1 through 25 range
• TE Flaps are in an asymmetry condition, or have uncommanded motion
• LE Devices are not configured for takeoff or have uncommanded motion
• Speed Brake lever is not in the DOWN position
• Spoiler control valve is open providing hyd pressure to the ground spoiler interlock valve
• Parking Brake is set
• Stab trim is not in T/O range

Question 2

Landing Gear warning horn is activated when:

Answer 2

Any gear not down and locked with:

• Flaps up through 10
• Altitude below 800’ RA
• Either forward thrust lever set between idle and approx 20° thrust lever angle
• With an engine not operating, with the other thrust lever set less than 34°

Question 3

Fire detection and extinguishing systems are located at which of the following areas?

Answer 3

• Engines, APU, Lavatories, Cargo Compartments

Question 4

The _________ powers engine overheat and fire detection:

Answer 4

• battery bus

Question 5

What happens when the engine fire warning switch is pulled up?

Answer 5

• Closes fuel, hydraulic shutoff, and engine bleed air valves
• Disables the reverser, trips the respective generator control circuit breaker, and deactivates the engine-driven hydraulic pump.

Question 6

When the FAULT/INOP and OVHT/FIRE TEST Switch is placed in the OVHT/FIRE position, should the FAULT light illuminate?

Answer 6

No

Question 7

If you are on the ground, what additional indications of an APU fire occur?

Answer 7

• the wheel well APU fire warning horn sounds

Question 8

The APU ground control panel contains an APU fire warning light, an APU BOTTLE DISCHARGE switch, an APU fire control handle, and an APU HORN CUTOUT switch and is located in the:

Answer 8

Maine wheel well

Question 9

The Cargo Compartment Fire Suppression System contains how many fire extinguisher bottle(s)?

Answer 9

2

Question 10

What should happen when pushing the Cargo Fire TEST Switch?

Answer 10

both Extinguisher (EXT) Test Lights should illuminate green

Question 11

If the Overheat Detector Select (OVHT DET) switches is in the NORMAL position, _______.

Answer 11

detection loop A and B are active

Question 12

The ______light illuminates when both loops in one or both cargo compartments have failed.

Answer 12

DETECTOR FAULT

Question 13

If the Cargo Fire Bottle Discharge (DISCH) light is illuminated (amber), what does it mean?

Answer 13

indicates either extinguisher bottle has discharged

Question 14

What happens on the B737-800, after the Cargo Fire System is armed, if the Cargo Fire Discharge (DISCH) Switch is pushed, and the first extinguisher bottle is discharged?

Answer 14

A timer is then set for 60 minutes to discharge the second bottle.

Question 15

When smoke is detected in the lavatory, what is the flight deck indication?

Answer 15

There is no flight deck indication

Question 16

The Lavatory Fire Extinguisher would indicate what color to indicate that the Heat Activated Nozzle has been discharged?

Answer 16

Aluminum

Question 17

With the If the OVHT DET switch is in normal and one engine overheat and fire detection loop fails, what happens?

Answer 17

the failed loop is automatically deactivated and the remaining loop functions as a single loop detector

Question 18

What does an illuminated amber FAULT light on the overheat fire protection panel indicate with the OVHT DET switch in normal?

Answer 18

both detector loops for an engine have failed

Question 19

What does an illuminated amber FAULT light on the overheat fire protection panel indicate with the OVHT DET switch selected to A?

Answer 19

the A detector loop for an engine has failed

Question 20

A _____ has occurred if both MASTER CAUTION lights, the OVHT/DET system annunciator light, and the related ENG OVERHEAT light illuminate.

Answer 20

An engine overheat

Question 21

The indications of an engine fire are:

Answer 21

• All related engine overheat alert indications illuminate
• The fire warning bell sounds, both master FIRE WARNING lights illuminate, the related engine fire warning switch illuminates

Question 22

The engine fire warning switches are unlocked by?

Answer 22

Illumination of an engine fire warning switch, illumination of an ENG OVERHEAT light, or manually by pushing the fire warning switch override

Question 23

What occurs to the engine fuel system when pulling the engine fire warning switch up?

Answer 23

closes both the engine fuel shutoff valve at the HMU and the spar fuel shutoff valve

Question 24

What occurs to the respective hydraulic system when pulling the engine fire warning switch up?

Answer 24

closes the hydraulic fluid shutoff valve and deactivates the engine driven hydraulic pump LOW PRESSURE light

Question 25

When the Fire Warning BELL CUTOUT Switch is pushed it extinguishes both master FIRE WARN lights, silences the fire warning bell and ___________.

Answer 25

resets system for additional warnings

Question 26

When positioning the EXT TEST Switch to 1 or 2, circuit continuity from the squib to __________ is verified.

Answer 26

both engines and APU fire switches

Question 27

What happens when placing the Fault/Inoperative (FAULT/INOP) and Overheat/Fire (OVHT/FIRE) TEST Switch to the FAULT/INOP position?

Answer 27

tests the fault detection circuits for both engines and the APU

Question 28

What happens when placing the Fault/Inoperative (FAULT/INOP) and Overheat/Fire (OVHT/FIRE) TEST Switch to the OVHT/FIRE position?

Answer 28

tests overheat and fire detection loops on both engines and APU, and wheel well fire detector

Question 29

What happens when there is an illuminated APU Fire Warning Switch, in the down position?

Answer 29

unlocks the APU fire warning switch

Question 30

_____lights will illuminate during a number 1 engine overheat.

Answer 30

ENG 1 OVERHEAT, MASTER CAUTION, and OVHT/DET system annunciat

Question 31

What does an illuminated red WHEEL WELL Fire Warning Light indicate?

Answer 31

a fire in the main gear wheel well

Question 32

An illuminated engine BOTTLE DISCHARGE light indicates_____.

Answer 32

the related fire extinguisher bottle has discharged

Question 33

An illuminated APU DET INOP light indicates_____.

Answer 33

APU detector loop has failed

Question 34

An illuminated APU BOTTLE DISCHARGE light indicates_____.

Answer 34

the APU extinguisher bottle has discharged

Question 35

Pushing the Master Fire Warning (FIRE WARN BELL CUTOUT) on the glareshield have the same results as pushing the fire warning bell cutout switch on the overheat/fire protection panel.

Answer 35

True

Question 36

What happens when pushing the FWD Cargo Fire ARM Switch?

Answer 36

arms the extinguisher for the forward cargo compartment

Question 37

What happens when pressing either MASTER CAUTION light after both lights are extinguished?

Answer 37

resets the annunciator light for further cautions

Question 38

Single failures in dual/redundant systems do not illuminate MASTER CAUTION light. How do you recall the system failure?

Answer 38

pressing either system annunciator light panel

Question 39

If ____________________are pressed, both Master Fire Warning lights are extinguished, the fire warning bell is silenced, and the system is reset for additional warnings.

Answer 39

either MASTER FIRE WARNING light or the fire warning bell cutout switch

Question 40

What do the Cabin Altitude and Takeoff Configuration Warnings commonly use when activated?

Answer 40

the same intermittent tone

Question 41

What conditions cause the takeoff configuration warning horn to sound?

Answer 41

• Trailing edge flaps skew or asymmetry, speed brake lever not in the DOWN position, or spoiler control valve is open providing pressured hydraulic fluid to the ground spoiler interlock valve • Stabilizer trim not set in the takeoff range, flaps not in the takeoff range, LE devices are not configured for takeoff, or the parking brake is set.

Question 42

What happens anytime the aircraft is below 800 feet RA, in landing configuration and any gear not down and locked?

Answer 42

A steady horn sounds

Question 43

During which conditions does pushing the Landing Gear Warning Cutout Switch silence landing gear configuration warning aural?

Answer 43

flaps up through 10 and below 800 feet RA

Question 44

What does the The Proximity Switch Electronic Unit (PSEU) monitor?

Answer 44

* takeoff and landing configuration warnings | * landing gear and air / ground sensing

Question 45

On the ground, what does an illuminated Proximity Switch Electronic Unit (PSEU) indicate.

Answer 45

a fault is detected in the PSEU, or an overwing exit flight lock fails to disengage when commanded

Question 46

The Proximity Switch Electronic Unit (PSEU) _____________ in flight.

Answer 46

is inhibited from thrust lever advance for takeoff until 30 seconds after landing

Question 47

As the throttles are advanced, what does it mean if the Takeoff Configuration Warning Light illuminates red?

Answer 47

the airplane is not configured correctly for takeoff

Question 48

What does an illuminated Cabin Altitude Warning Light indicates?

Answer 48

at 10,000 feet if the cabin has not been pressurized

Question 49

What happens when the maximum operating airspeed of Vmo/Mmo is exceeded?

Answer 49

the Mach / airspeed warning system provides an aural warning (clacker)

Question 50

The indication of an impending stall is_____?

Answer 50

an artificial stall warning device (stick shaker)

Question 51

Which is true in regard to the MACH AIRSPEED WARNING TEST switches and the STALL WARNING TEST switches?

Answer 51

are inhibited while airborne

Question 52

When is altitude alerting inhibited?

Answer 52

when the trailing edge flaps are extended to 25 or greater, or while G/S is captured

Question 53

At what point prior to reaching the selected altitude does a white box shows around the selected altitude display, the box around the current altitude becomes bold and a momentary tone sounds?

Answer 53

900'

Question 54

If the selected altitude is deviated by ____ feet, a momentary tone sounds, the current altitude box turns amber and ____________.

Answer 54

300; begins to flash

Question 55

What inhibits Ground Proximity Warning System look ahead terrain and radio altitude based alerts?

Answer 55

actual windshear warning

Question 56

Approximately how far from the projected impact will the look ahead terrain alert “Terrain, terrain, pull up” sound with the terrain shown in solid red on the navigation display?

Answer 56

20 to 30 secs

Question 57

Approximately how far from projected impact will the look ahead terrain alert “Caution, terrain” will sound with terrain shown in solid amber on the navigation display?

Answer 57

40 to 60 secs

Question 58

In what speed realm does “Too low, terrain” aural alert occurs if the aircraft is at an unsafe terrain clearance with either the landing gear not down or flaps not in the landing configuration?

Answer 58

high speed

Question 59

If the aircraft experiences excessive altitude loss after a takeoff or go-around, the “__________” aural alert occurs.

Answer 59

“DON’T SINK”

Question 60

The Volume and repetition of the “GLIDESLOPE” aural alert rate _____________ as deviation _______________ below the glideslope.

Answer 60

increase; increase

Question 61

When are new predictive windshear warning alerts are inhibited During takeoff and landing?

Answer 61

between 100 knots and 50 ft RA

Question 62

What does an illuminated Inoperative (INOP) light on the Ground Proximity panel alert the pilot to?

Answer 62

a GPWS computer malfunction or power loss has occurred.

Question 63

In flight, the Ground Proximity System Test (SYS TEST) Switch is ______.

Answer 63

inhibited

Question 64

What does placing the Ground Proximity FLAP INHIBIT Switch to FLAP INHIBIT, inhibit?

Answer 64

ground proximity TOO LOW FLAPS alert

Question 65

What does placing the Ground Proximity TERRAIN INHIBIT Switch to TERRAIN INHIBIT, inhibit?

Answer 65

look-ahead terrain alerts and terrain displays

Question 66

When does the weather radar automatically begins scanning for windshear?

Answer 66

all answers are correct

Question 67

A(n) ____________ aural and a message is annunciated on the traffic display for Traffic advisories.

Answer 67

“TRAFFIC TRAFFIC”

Question 68

Resolution advisories provide ________and an aural warning to maintain or increase separation from traffic.

Answer 68

maneuver guidance

Question 69

What does placing the Transponder Mode Selector to TA (traffic advisory) ONLY do?

Answer 69

enables the display of traffic advisory targets

Question 70

What does placing the Transponder Mode Selector to TA/RA do?

Answer 70

enables the display of traffic advisory targets and resolution advisory (RA) targets

Question 71

What does pressing the Absolute Altitude Display Selector on the TCAS Controls (Transponder Panel) do?

Answer 71

displays absolute altitude of TCAS targets

Question 72

In which TCAS Altitude Range Switch position sets TCAS display from 2700 feet below to 7000 feet above own aircraft?

Answer 72

Above (ABV)

Question 73

On the cartridge assembly (Tail Skid) on the -800 and -900 series, if the warning decal is ______, the cartridge must be replaced.

Answer 73

all red