ESV Study Guide Fire Protection

Question 1

____ fire extinguishing bottle(s) is/are available for use on the APU. a. 1
b. 2 c. 3 d. 4

Answer 1

a. 1

Question 2

If the battery switch is OFF, the APU has ____.
a. no fire extinguishing or detection
b. both fire extinguishing and detection
c. fire detection
d. fire extinguishing

Answer 2

d. fire extinguishing

Question 3

Placing the Test Switch in the FAULT/INOP position tests the _____.
a. fire bottle squib discharge circuits
b. engine overheat detectors
c. fault detection circuits for both engines and the APU
d. fire detection loops on both engines and the APU

Answer 3

c. fault detection circuits for both engines and the APU

Question 4

What indicates the engine fire extinguishing agent has been discharged?
a. An FMC message
b. An amber LOW PRESSURE light
c. A green extinguisher test light comes on for the respective engine.
d. An amber L or R BOTTLE DISCHARGE light

Answer 4

d. An amber L or R BOTTLE DISCHARGE light

Question 5

Fire detection for the engines and APU is available when the battery switch is ______. a. ON or OFF
b. inoperative c. OFF
d. ON

Answer 5

d. ON

Question 6

In flight, failure of a cargo compartment smoke detector loop will ____. a. illuminate the Cargo Detector Inop Light
b. cause a Master Caution/overheat detection alert
c. not be indicated unless both loops fail
d. illuminate the Cargo Detector Fault light on recall

Answer 6

c. not be indicated unless both loops fail

Question 7

The engine fire extinguishing bottles are discharged ____.
a. by pulling and manually turning the fire switch
b. by pressing the discharge button next to the fire switch
c. by pulling the fire switch twice
d. automatically for the engine on fire

Answer 7

a. by pulling and manually turning the fire switch

Question 8

The APU fire bottle is discharged ____.
a. automatically or manually only
b. automatically, manually, or thermally
c. by pulling and rotating the APU fire switch
d. by pressing the discharge button

Answer 8

c. by pulling and rotating the APU fire switch

Question 9

How do you extinguish a wheel well fire?
a. Discharge the fire bottle.
b. Lower the landing gear.
c. Both of the above.
d. None of the above.

Answer 9

b. Lower the landing gear.

Question 10

Pulling the APU fire switch ____.
a. closes the APU Inlet Door
b. deactivates the fuel solenoid and closes the APU Fuel Shutoff Valve
c. closes the APU Bleed Air Valve
d. accomplishes all of the above

Answer 10

d. accomplishes all of the above

Question 11

The ____ are equipped with smoke detection equipment. a. aft cabin
b. lavatories
c. galleys
d. forward cabin

Answer 11

b. lavatories

Question 12

The APU wheel well fire warning horn operates on the ground with the battery switch ____.
a. Either ON or OFF
b. in the OVERRIDE position
c. OFF
d. ON

Answer 12

d. ON

Question 13

If the APU fire detection system is inoperative (APU DET INOP), the APU will _____.
a. continue to operate
b. shutdown automatically for a fire if battery power is available
c. shutdown automatically if both loops are inoperative
d. shutdown automatically for a fire if only one loop is inoperative

Answer 13

a. continue to operate

Question 14

Following a dual loop failure on an engine, you would expect to see ____.
a. a Master Caution light
b. an OVHT/DET system annunciator
c. a FAULT light
d. All of the above are correct.

Answer 14

c. a FAULT light

Question 15

Some of the indications for an engine fire warning are Master Caution and OVHT/DET annunciator lights, the Engine OVERHEAT light, the Master FIRE WARN light, and the red Fire Switch light. What is another?
a. The Fire Warning Bell
b. Red Engine Overheat light
c. The APU Det INOP light
d. bottle Discharge light

Answer 15

a. The Fire Warning Bell

Question 16

**While in flight, you observe these indications. The Fire Bell is also sounding. What is your conclusion?
a. The number 1 engine indicates an overheat condition only.
b. The number 1 engine indicates a fire condition.
c. The number 1 engine has as a single loop detection failure.
d. The other crew member is performing an independent loop lest.

Answer 16

b. The number 1 engine indicates a fire condition.

Question 17

**Before consulting the QRH procedure, the crew elects to reset the Fire Warning System by pressing the Fire Warning BELL CUTOUT Switch or either Master FlRE WARN Light. Which of the following indications will now occur?
a. The Fire Warning Bell will silence. Also, the MASTER CAUTION Lights, the OVHT/DET Lights, ENG 1 OVERHEAT light and the #1 Engine Fire Handle Light will extinguish.
b. The Fire Warning Bell and the Fire Horn in the Main Wheel Well will silence. The ENG 1 OVERHEAT light and the #1 Engine Fire Handle Light will extinguish.
c. The Fire Warning Bell will silence and the Master FIRE WARN lights on the glare shield will extinguish and reset.
d. The Fire Warning Bell will silence and the Master FIRE WARN, MASTER CAUTION, and OVHT/DET annunciator lights will extinguish.

Answer 17

c. The Fire Warning Bell will silence and the Master FIRE WARN lights on the glare shield will extinguish and reset.

Question 18

**After resetting the Fire Warning System you reduce the # 1 Engine Throttle to idle thrust and the #1 Engine Fire Handle Light extinguishes. Under these circumstances, _____.
a. Action must be taken to first override a locked Fire Handle before pulling the applicable Fire
Handle. Do not rotate the pulled #1 Engine Fire Handle
b. Action must be taken by pulling up on the appropriate Fire Handle and rotating that Fire Handle to
discharge a fire bottle
c. The engine fire and overheat conditions no longer exist, so leave the engine in idle thrust for the
remainder of the flight
d. Action must be taken to prevent the shutdown of the engine when the applicable Fire Handle is
pulled. Manually unlock the #1 Fire Handle Override and then pull, but do not rotate the appropriate Fire Handle

Answer 18

a. Action must be taken to first override a locked Fire Handle before pulling the applicable Fire
Handle. Do not rotate the pulled #1 Engine Fire Handle

Question 19

*Both engines are operating in flight. In addition to the indications to the right, the Master FIRE WARN lights illuminate and the Fire Warning Bell sounds. Which of the following statements is correct?
a. Engine #2 Overheat has been detected.
b. Both of the Engine # 1 Overheat/ Fire Detector Loops are inoperative
c. Engine #1 Fire Handle automatically unlocks.
d. Engine fire detection is now powered by the Hot Battery Bus.

Answer 19

c. Engine #1 Fire Handle automatically unlocks.

Question 20

**In addition to the Engine #1 fire warnings already described, the crew notices the indications at right on the Upper Display Unit. Which statement below best describes these EGT indications?
a. The maximum continuous EGT limit has been exceeded on Engine #1.
b. The maximum takeoff EGT limit has been exceeded on Engine #1.
c. Engine #1 is operating at a condition below sustainable idle.
d. This is a false indication because the EEC provides EGT redline exceedance protection.

Answer 20

a. The maximum continuous EGT limit has been exceeded on Engine #1.

Question 21

*Following the QRH procedure, the crew pulls (fully extends) the Fire Handle. Which statement below is not correct when Fire Handle #1 is pulled up?
a. One discharge squib on each fire extinguishing bottle is armed.
b. The thrust reverser for Engine #1 is disabled.
c. Both the Engine Fuel Shutoff Valve and the Spar Fuel Shutoff Valve close for Engine #1.
d. The left Bus Tie Breaker is tripped open.

Answer 21

d. The left Bus Tie Breaker is tripped open.

Question 22

*These indications, along with the Fire Bell, OVHT/DET Annunciator, Master FIRE WARN and MASTER CAUTION lights activate during the pre-flight test of the Fire/Overheat warning. Select the most correct statement.
a. This is a proper test if AC power has not yet been applied.
b. The ENG 1 and ENG 2 OVERHEAT Lights should not be illuminated during this test.
c. This is a proper test with the AC Busses powered normally.
d. The WHEEL WELL light does not illuminate with the test switch in OVHT/FIRE position.

Answer 22

c. This is a proper test with the AC Busses powered normally.

Question 23

23. *Suppose instead that a FAULT light illuminates during the Fire/Overheat Warning test and the #1 engine Fire Handle and ENG 1 OVERHEAT lights do not illuminate. Select the most correct statement.
    a. The number one engine has one operative Fire Detector Loop and one inop Overheat Detector
    loop.
    b. The number one engine Overheat Detector Loop is operative but the Fire Detector Loop is inop.
    c. The number one engine has one Overheat Detector Loop and one Fire Detector Loop inop.
    d. The number one engine has one Overheat/Fire Detector Loop inoperative.

Answer 23

d. The number one engine has one Overheat/Fire Detector Loop inoperative.

Question 24

*What is the proper course of action for any Fire and Overheat System test with an inoperative loop?
a. Put the OVHT DET Switch to A and then B and re-test the system at each position. The FAULT light illuminates when the inoperative loop is selected. Select the good loop for both OVHT DET
switches and leave the panel in this configuration.
b. Keep the OVHT DET Switch in NORMAL. The Engine Fire and Overheat Detection system will
work normally and needs no further testing.
c. Maintenance must be called to test the Engine Fire and Overheat Detection system since this
requires a very complex array of switch positions.
d. Select the OVHT DET Switch from NORMAL to A since this condition is always an indication of a
Loop B fault

Answer 24

a. Put the OVHT DET Switch to A and then B and re-test the system at each position. The FAULT light illuminates when the inoperative loop is selected. Select the good loop for both OVHT DET
switches and leave the panel in this configuration.

Question 25

*What light(s) on the Overheat/Fire Detection panel will cause the Master Caution light to illuminate?
a. Engine Fire Warning
b. APU Fire Warning
c. Engine Overheat lights or APU Det Inop
d. Wheel Well fire

Answer 25

c. Engine Overheat lights or APU Det Inop