Boeing B777 - Fire Protection

Engine Fire and Overheat Detection - There are two detector loops in each engine nacelle. Each detector loop provides both fire and overheat detection. Normally, both loops must detect a fire or overheat condition to cause an engine fire warning or overheat caution.

False.

True.

Correct! Wrong!

After a forward cargo fire has been extinguished, what happens when the AFT CARGO FIRE ARM switch is now pushed?

The arming functions for the AFT CARGO FIRE ARM switch does not activate.

The arming function for the AFT CARGO FIRE ARM swıtch performs a self-test.

The arming functions for the AFT CARGO FIRE ARM switch activates, but discharge into the aft compartment does not occur.

The arming functions for the AFT CARGO FIRE ARM switch activate and the metered bottles discharge into the aft compartment.

Correct! Wrong!

What does the DET FIRE APU EICAS message indicate?

The APU fire bottle squibs are inoperative.

The APU fire detection system has automatically reconfigured to single loop operation.

A fire has been detected in the APU.

APU fire detection is no longer available.

Correct! Wrong!

Where are the lavatory fire extinguishers located?

In the waste container cabinet.

Under the floor.

Behind the storage cabinets.

In the water sink compartment.

Correct! Wrong!

The APU compartment has dual fire detector loops and can detect overheat conditions.

True.

False.

Correct! Wrong!

Which part of the aircraft have fire, overheat or smoke detection systems?

Cockpit, cabin, avionics bay and fuel tanks.

Engines, APU, main wheel wells, cargo compartments and lavatories.

Wings, tailcone, and landing gear.

Thrust reversers and avionics bay.

Correct! Wrong!

What fire, overheat, or smoke protection is provided for the lavatories?

Smoke only.

Fire, overheat, and smoke.

Overheat only.

Fire only.

Correct! Wrong!

What does the DET FIRE CARGO AFT EICAS message indicate?

A fire has been detected in the aft cargo compartment.

There is a detection zone fault in the smoke detector for the aft cargo compartment.

The aft cargo fire heat sensor is inoperative.

Fire detection for the aft cargo compartment is not available.

Correct! Wrong!

What does the ENG BTL DISCH illuminated amber light indicate?

It indicates which bottle is armed to be discharged.

The extinguisher bottle is has low pressure or overpressure.

The extinguisher bottle is discharged or has low pressure

The extinguisher bottle has overpressure

Correct! Wrong!

What happens when an APU fire is detected on the ground and the engines are running?

The APU does NOT shut down automatically and the fire bottle must be discharged manually.

The APU does not shut down automatically but the fire bottle discharges automatically.

The APU shuts down automatically but the fire bottle must be discharged manually.

The APU shuts down automatically and the fire bottle discharges automatically.

Correct! Wrong!

What happens when an APU fire is detected on the ground and the engines are shut down?

The APU shuts down automatically and the fire bottle discharges automatically.

The APU does not shut down automatically but the fire bottle discharges automatically.

The APU does NOT shut down automatically and the fire bottle must be discharged manually.

The APU shuts down automatically but the fire bottle must be discharged manually.

Correct! Wrong!

How many fire extinguisher bottles are installed for the cargo compartment fire extinguishing?

Three.

Five.

Four.

Two.

Correct! Wrong!

What does the DET FIRE CARGO FWD EICAS message indicate?

Fire detection for the forward cargo compartment is not available.

The Forward cargo fire heat sensor is inoperative.

A fire has been detected in the forward cargo compartment.

There is a detection zone fault in the smoke detector for the forward cargo compartment.

Correct! Wrong!

Which of the following is not an indication of an engine overheats?

EICAS caution message OVERHEAT ENG (L,R) is displayed.

The master caution lights illuminate.

The fire bell sounds.

The caution beeper sounds.

Correct! Wrong!

Which statement is true concerning a lavatory fire?

The lavatory fire extinguishing system is activated by a discharge switch on the overhead panel.

An aural warning activates and a light illuminates outside the lavatory if smoke is detected.

There is no built-in fire extinguisher for the lavatories.

An automatic sprinkler system activates if a fire is detected.

Correct! Wrong!

Which statement is true concerning a wheel well fire?

Two fire bottles protect the wheel well from fires.

There is no built-in fire extinguishing system for the wheel well.

Fires are detected by two smoke detection units in the wheel well.

Fire detection loops alert the crew to excessive brake temperatures.

Correct! Wrong!

On the B777-300, what happens when the CARGO FIRE ARM switch is pushed?

It arms all four cargo fire extinguisher bottles.

It arms all six cargo fire extinguisher bottles.

It arms all five cargo fire extinguisher bottles.

It arms the two rapid dump fire extinguisher bottles.

Correct! Wrong!

During preflight, you notice the BOTTLE 1 DISCH ENG message displayed on EICAS. What does this mean?

This is a normal indication prior to APU start.

The fire bottle squibs are inoperative.

Ground maintenance is servicing fire bottle 1.

Fire bottle 1 has discharged or pressure is low.

Correct! Wrong!

After the FWD CARGO FIRE ARM switch has been armed, what happens when the CARGO FIRE DISCH switch is pushed?

All five fire bottles arm and airflow around the cargo compartment is reduced.

All four bottles discharge into the forward cargo compartment.

Two rapid dump bottles discharge into the forward cargo compartment.

One of the metered bottles discharges into the forward cargo compartment.

Correct! Wrong!

What action should you take if the fire switch remains locked after a fire is detected?

Rotate the fire switch.

Wait until the fire light extinguishes.

Pull the fire switch to override the lock.

Push the fire override switch and then pull the fire switch.

Correct! Wrong!

When is the EICAS message BOTTLE DISCH CARGO displayed?

When the first two bottles have completely discharged.

When the fire extinguishing system fails.

When all bottles are completely discharged.

When the extinguisher bottles begin to discharge.

Correct! Wrong!

How many detectors loops does each each engine have and what states may each loop signal?

There is one loop. The different possible states are: normal, overheat and fault.

There are two loops. The different possible states are: normal and fault

There are three loops. The different possible states are: fire, overheat, and fault.

There are two loops. The different possible states are: normal, overheat, fire and fault.

Correct! Wrong!

During preflight, you notice the BOTTLE DISCH APU message displayed on EICAS. What does this mean?

This is a normal indication prior to APU start.

The APU fire bottle has discharged.

The APU fire bottle is missing.

The APU fire bottle squibs are inoperative.

Correct! Wrong!

The APU has only one fire extinguisher bottle.

False.

True.

Correct! Wrong!

What does the DET FIRE ENG R EICAS message indicate?

A fire has been detected in the right engine.

The right engine fire bottle squibs are inoperative.

The fire detection system for this engine has automatically reconfigured to single loop operation.

Fire detection for this engine is no longer available.

Correct! Wrong!

During cruise, you notice the OVERHEAT ENG R message displayed on EICAS. What has occurred?

A pending overheat condition exists in the right engine.

Overheat detection in the right detection in the right engine has failed.

A fire condition exists in the right engine.

An overheat condition exists in the right engine.

Correct! Wrong!

Fire and Overheat Detection System automatically checks for faults in the loops.

False.

True.

Correct! Wrong!

Boeing B777 – Fire Protection

Quiz

Boeing B777 - Fire Protection

Engine Fire and Overheat Detection - There are two detector loops in each engine nacelle. Each detector loop provides both fire and overheat detection. Normally, both loops must detect a fire or overheat condition to cause an engine fire warning or overheat caution.

After a forward cargo fire has been extinguished, what happens when the AFT CARGO FIRE ARM switch is now pushed?

What does the DET FIRE APU EICAS message indicate?

Where are the lavatory fire extinguishers located?

The APU compartment has dual fire detector loops and can detect overheat conditions.

Which part of the aircraft have fire, overheat or smoke detection systems?

What fire, overheat, or smoke protection is provided for the lavatories?

What does the DET FIRE CARGO AFT EICAS message indicate?

What does the ENG BTL DISCH illuminated amber light indicate?

What happens when an APU fire is detected on the ground and the engines are running?

What happens when an APU fire is detected on the ground and the engines are shut down?

How many fire extinguisher bottles are installed for the cargo compartment fire extinguishing?

What does the DET FIRE CARGO FWD EICAS message indicate?

Which of the following is not an indication of an engine overheats?

Which statement is true concerning a lavatory fire?

Which statement is true concerning a wheel well fire?

On the B777-300, what happens when the CARGO FIRE ARM switch is pushed?

During preflight, you notice the BOTTLE 1 DISCH ENG message displayed on EICAS. What does this mean?

After the FWD CARGO FIRE ARM switch has been armed, what happens when the CARGO FIRE DISCH switch is pushed?

What action should you take if the fire switch remains locked after a fire is detected?

When is the EICAS message BOTTLE DISCH CARGO displayed?

How many detectors loops does each each engine have and what states may each loop signal?

During preflight, you notice the BOTTLE DISCH APU message displayed on EICAS. What does this mean?

The APU has only one fire extinguisher bottle.

What does the DET FIRE ENG R EICAS message indicate?

During cruise, you notice the OVERHEAT ENG R message displayed on EICAS. What has occurred?

Fire and Overheat Detection System automatically checks for faults in the loops.