Fire

Front 1

How is an ENG OVERHEAT condition indicated?

Back 1

MASTER CAUTION, OVHT/DET annunciator & associated ENG OVERHEAT lights
illuminate

Front 2

What does an illuminated fire control panel FAULT light indicate when no fire test is being
performed?

Back 2

Both loops on one engine have failed in the dual loop position (NORMAL) or selected
single loop on an engine has failed

Front 3

The FAULT light illuminates on the engine fire control panel with no fire test being performed. Are
there any other lights or indications?

Back 3

No. No additional indications are triggered with a FAULT light on

Front 4

What are the power sources for engine fire detection & extinguishing?

Back 4

Detection - Battery bus; extinguishing - Hot Battery bus

Front 5

Which statement regarding the engine fire extinguisher bottles is correct?

Back 5

Two bottles available for either engine

Front 6

How is the squib on an engine fire extinguisher bottle armed?

Back 6

Pulling the fire switch arms the squib

Front 7

How are the engine fire warning switches (red handles) released?

Back 7

Released by overheat, fire or manually

Front 8

How is the engine fire extinguisher bottle discharged?

Back 8

Pull illuminated fire warning switch up, rotate either to the left or right

Front 9

What does an illuminated BOTTLE DISCHARGED light indicate?

Back 9

Extinguisher bottle has discharged

Front 10

What is the function of the OVHT/FIRE position of the FIRE TEST switch? (Normal AC power on
the generator buses)

Back 10

Tests all aircraft fire and overheat loops

Front 11

During an extinguisher system test (squib test) what does an engine fire extinguisher illuminated
green EXT TEST light indicate?

Back 11

Discharge circuit test is normal for respective extinguisher circuit

Front 12

Which statement describes the APU fire detection system?

Back 12

Single loop system for fire or fault detection

Front 13

What does an illuminated APU DET INOP light indicate when no fire warning test is being
performed?

Back 13

Failure in the APU fire detector loop

Front 14

What occurs when an APU fire condition is detected? (cockpit only)

Back 14

APU fire warning & master FIRE warning lights illuminate and fire bell sounds in cockpit
and APU shuts down

Front 15

What are the initial indications of a fire at the APU Ground Control Panel? (ON THE GROUND)

Back 15

Flashing Fire Warning light and intermittent horn

Front 16

In the event of an APU fire warning, what occurs when a cockpit FIRE warning bell cut-out switch
or the APU Ground Control Panel (GCP) HORN CUTOUT button is pressed?

Back 16

Cockpit fire bell and GCP horn are silenced, GCP light illuminates steady

Front 17

How is the APU extinguisher bottle discharged from APU Ground Control Panel?

Back 17

Pull fire control handle, then activate discharge switch

Front 18

Which describes the WHEEL WELL fire warning system?

Back 18

No. 1 AC Transfer bus powers a single loop detector

Front 19

How is a WHEEL WELL fire indicated?

Back 19

WHEEL WELL fire & master FIRE warning lights illuminate with steady fire bell

Front 20

A smoke detection and fire suppression system is installed in the cargo compartment of the
B737-300 and -500 aircraft

Back 20

True

Front 21

How is discharge of a lavatory fire extinguisher determined?

Back 21

Bottle nozzle tips change to an aluminum color

Front 22

When the fire control panel test switch is placed to the FAULT / INOP position, which lights
should illuminate?

Back 22

Two MASTER CAUTION lights, the OVHT/DET annunciator, the FAULT light, and the
APU DET/INOP light

Front 23

If, during the FAULT / INOP test, the FAULT light does not come on

Back 23

The engine fault detection system has failed

Front 24

The engine fire panel FAULT light illuminates during an overheat / fire test. This indicates

Back 24

At least one engine has a faulty loop

Front 25

On arrival at the aircraft you find the FAULT light illuminated prior to any system test. The loop
selector switches are in the NORMAL position. Both fire warning loops on one engine have failed

Back 25

TRUE

Front 26

In flight with dual loop configuration selected, you observe the FAULT light illuminated on the fire
warning panel. What has happened?

Back 26

Both loops on one engine have failed

Front 27

Engine fire detection is powered from the:

Back 27

Battery Bus

Front 28

Engine and APU fire extinguishing is powered from the

Back 28

Hot Battery Bus

Front 29

If a fire is detected in the APU, the APU shuts down, the fire bottle discharges, and the fire bell
silences after the fire bottle is discharged automatically

Back 29

FALSE

Front 30

The WHEEL WELL fire detection system is DC powered

Back 30

False

Front 31

In flight, what happens if a single engine fire detector loop fails during dual loop operation?

Back 31

The loop is automatically deselected and fire warning capability is not lost on that engine

Front 32

OVRHT/DET annunciator and the MASTER CAUTION lights are (triggered) by:

Back 32

The APU DET INOP light or an engine OVERHEAT light

Front 33

The Fire control panel FAULT light illuminates

Back 33

During the FAULT / INOP test

Front 34

During the OVHT/FIRE test, the APU fire warning light in the wheel well

Back 34

Illuminates flashing

Front 35

During the EXTINGUISHER TEST, what do the illuminated green lights on the Overheat/Fire
protection panel indicate?

Back 35

The fire extinguisher discharge circuits are functional

Front 36

When the lavatory smoke detectors are activated, the FIRE WARN, MASTER CAUTION, and fire
annunciator lights illuminate, and the fire bell sounds on the flight deck.

Back 36

False

Front 37

The cargo compartment smoke detector and fire suppression system must be verified to be
serviced and operational before cargo can be carried in the cargo compartments

Back 37

TRUE

Front 38

After activation of the cargo fire suppression system the aircraft must land at the nearest suitable
airport within __________ minutes of the activation

Back 38

60 minutes

Front 39

The wheel well detection system displays warnings for __________.

Back 39

FIRE

Front 40

There is no fire extinguisher system for the wheel well area

Back 40

TRUE

Front 41

There is no FAULT warning for a failure of the wheel well fire detector.

Back 41

True

Front 42

The power to the fire extinguisher bottle squibs is provided by the

Back 42

Hot Battery Bus