Boeing B777 – Fire Protection - SmartCockpit - Airline training guides, Aviation, Operations, Safety

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

Two rapid dump bottles discharge into the forward cargo compartment.

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

All four bottles discharge into the forward cargo compartment.

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

Correct! Wrong!

Which statement is true concerning a wheel well fire?

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

Fire detection loops alert the crew to excessive brake temperatures.

Two fire bottles protect the wheel well from fires.

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

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!

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!

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

False.

True.

Correct! Wrong!

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

It arms all five cargo fire extinguisher bottles.

It arms all four cargo fire extinguisher bottles.

It arms all six cargo fire extinguisher bottles.

It arms the two rapid dump fire extinguisher bottles.

Correct! Wrong!

What does the ENG BTL DISCH illuminated amber light indicate?

The extinguisher bottle is has low pressure or overpressure.

The extinguisher bottle is discharged or has low pressure

It indicates which bottle is armed to be discharged.

The extinguisher bottle has overpressure

Correct! Wrong!

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

Pull the fire switch to override the lock.

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

Rotate the fire switch.

Wait until the fire light extinguishes.

Correct! Wrong!

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

The APU fire bottle is missing.

This is a normal indication prior to APU start.

The APU fire bottle squibs are inoperative.

The APU fire bottle has discharged.

Correct! Wrong!

The APU has only one fire extinguisher bottle.

False.

True.

Correct! Wrong!

Where are the lavatory fire extinguishers located?

Behind the storage cabinets.

Under the floor.

In the water sink compartment.

In the waste container cabinet.

Correct! Wrong!

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

Smoke only.

Overheat only.

Fire, overheat, and smoke.

Fire only.

Correct! Wrong!

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

False.

True.

Correct! Wrong!

When is the EICAS message BOTTLE DISCH CARGO displayed?

When the fire extinguishing system fails.

When the first two bottles have completely discharged.

When the extinguisher bottles begin to discharge.

When all bottles are completely discharged.

Correct! Wrong!

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

The fire bottle squibs are inoperative.

Fire bottle 1 has discharged or pressure is low.

This is a normal indication prior to APU start.

Ground maintenance is servicing fire bottle 1.

Correct! Wrong!

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

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

The caution beeper sounds.

The master caution lights illuminate.

The fire bell sounds.

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 activate and the metered bottles discharge into the aft compartment.

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

Correct! Wrong!

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

Five.

Two.

Three.

Four.

Correct! Wrong!

What does the DET FIRE CARGO FWD EICAS message indicate?

The Forward cargo fire heat sensor is inoperative.

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

A fire has been detected in the forward cargo compartment.

Fire detection for the forward cargo compartment is not available.

Correct! Wrong!

What does the DET FIRE ENG R EICAS message indicate?

A fire has been detected in the right engine.

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

Fire detection for this engine is no longer available.

The right engine fire bottle squibs are inoperative.

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.

A fire condition exists in the right engine.

An overheat condition exists in the right engine.

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

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 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.

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

Correct! Wrong!

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

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

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

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

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

Correct! Wrong!

What does the DET FIRE CARGO AFT EICAS message indicate?

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

The aft cargo fire heat sensor is inoperative.

A fire has been detected in the aft cargo compartment.

Fire detection for the aft cargo compartment is not available.

Correct! Wrong!

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

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

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.

Correct! Wrong!

What does the DET FIRE APU EICAS message indicate?

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

A fire has been detected in the APU.

The APU fire bottle squibs are inoperative.

APU fire detection is no longer available.

Correct! Wrong!

Boeing B777 – Fire Protection