MQF Flashcards
What system is used to open the forward cargo baggage door?
Manual mechanical
The designation of the engine on the 737 – NG is CFM international CFM 56–7B26
True
With the emergency light switch in the armed position under normal power, what condition will cause the lights to illuminate automatically?
Loss of #1 DC bus or AC power is turned off
In-flight, when the gear horn sounds, under what conditions can it be silenced?
Flaps 1 – 10, thrust levers at any position
What warning inhibits are available in the GPWS system?
Flaps config, gear config and terrain
How are the bleed valves operated?
Electrically controlled and pneumatically operated
A reactive windshear alert inhibits all others
True
Can the engines be started with the engine bleed valve switches in the off position?
Yes
With the loss of system A hydraulic pressure, nose wheel steering:
Is manually selectable to system B hydraulics
What causes a bleed trip?
Both A and B
Excessive bleed pressure and temp
How many fuel measuring sticks are used to check the center tank quantity?
4
What does a duct overheat light indicate?
Bleed air temperature in related duct exceeds limits
What is the function of the EEC?
Both A and B
- N1 is used by the EEC to set thrust in three control modes: normal and two alternates
- EEC uses thrust Lever inputs to automatically control forward and reverse thrust
Where is the engine oil pressure measured?
On the outlet side of the engine driven oil pump, prior to engine lubrication
What is the purpose of the isolation valve?
Allows separation or connection of the left and right pneumatic systems when required
What are the in Flight operating limits of the APU?
All of the above
When should the starter automatically cut out?
56% N2
What are the power sources of igniters?
Left, respective AC transfer bus and Right, standby AC bus
Will the APU fire detection system automatically discharge the fire bottle?
No, it only shuts the APU down
What requirements must be met before reverse is available?
All of the above and reverse selected
- Fire switch down
- Either radio altimeter sensing less than 10 feet, or the air\ground sensor in the ground mode
- Hydraulic pressure and battery power available
What is the purpose of the landing gear transfer unit?
Allows landing gear retraction in the event of a number one engine failure
What are the temperature limits of the APU?
Maximum limits are not displayed but are set by the ECU
What are the electrical sources for the 737?
All of the above
- Two engine driven generators
- APU
- Ground Powerr
- battery for standby bus
How are the primary flight controls normally powered?
By hydraulic systems A & B
How could the standby rudder be activated manually?
Placing either or both system A and B flight control switches to standby rudder
Under what conditions would an IDG disconnect (either manually or automatically) be necessary when low oil is sensed by a DRIVE amber caution light?
Both A and B
- High oil temperature
- IDG failure
Can the standby hydraulic pump be activated by any additional method?
Yes, by selecting the alternate flap master switch to on
Which buses supply the essential loads?
The standby buses
What is the minimum fuel to operate the electric hydraulic pumps on the ground?
1675 pounds in each wing tank
Why is there a minimum fuel requirement to operate the electric hydraulic pumps?
The A and B system heat exchangers are located in the main tanks
What are the primary and the backup sources of power for the transfer buses ?
Primary: respective IDG
Backup: opposite XFER bus
At what degree of control wheel displacement does Flight spoiler deployment begin to assist the ailerons in roll control?
10°
Does aileron trim physically effect control wheel position?
Yes. The control wheel position directly indicates the amount of aileron trim applied.
What is the function of a TR?
Convert 115 V AC power to 28 V DC power
What is the voltage output of the TR’s?
28 volts
If the trailing edge flaps are extended by the alternate method, what flap protections are available
None
What powers the trailing edge flaps down with the alternate flaps system selected?
An electric motor
When is the automatic standby power feature available?
Always. It functions the same on the ground as in the air.
Which of the following is not on the hot battery bus?
Standby Runner shut off valve
If the system B electric pump or lines developed a leak what would the indications be?
The quantity indication would go to zero. But sufficient fluid would be available to operate the power transfer unit.
If you lost all standby system hydraulic fluid, would there be a cockpit indication?
Yes. The standby low quantity light would be illuminated and system B reservoir would read one half and RFL
What activates the standby hydraulic pump?
All of the above and activation of the FFM
What is the power source for APU start?
A and B
- AC power if available
- Main battery only if AC not available
Will the autobrake disarm light normally illuminate after take off with RTO selected?
No
When selected, at what speed is RTO available?
Above 90 knots
What is the maximum airspeed for retracting the landing gear?
235 knots
When is the fuel heated?
The fuel is constantly heated by a fuel\oil heat exchanger
When retracting the highlift devices using the alternate method will the LED’s return to the retracted position?
No
What are the two sources of power for the ground service bus?
Both A and C
- Transfer bus one
- Ground power via the ground service switch on the F\A panel
When are the ground service buses powered?
When external power is available and the ground service switch is on, or both transfer buses are powered
When is the latest you should wait for oil pressure to be indicated?
By idle RPM
The APU has an overheat warning system
False
Must the battery switch be on to operate the APU?
Yes, on the ground and in Flight
Can the APU be started without the battery?
No, the battery is required
What actuates the thrust reversers?
Hydraulic pressure
What do the start levers control?
Both A and C
- fuel
- ignition
How long should you operate the APU before using it as a bleed air source?
1 minute
The EGPWS gets position information from:
GPS position
When are the aux and main batteries tied together?
When the batteries are the only source of power (except during APU start)
What is the primary source for DC power?
Three transformer rectifiers (TRs) and a ground service TR
What is the maximum EGT allowed during engine start?
Not given, but the APU start will automatically terminate in an exceedance
What would indicate an APU hung start?
The start is automatically terminated
How high may the APU be started?
Up to the service ceiling of the aircraft
What is a good test indication of the TCAS?
A and B
- Four traffic symbols on the NDs
- An aural message that the test is okay
Where did the air conditioning packs get their air?
All of the above
How is the APU compartment and exhaust system cold?
Air enters the cooling inlet above the exhaust opening
If the APU EGT rises above acceptable limits during engine start:
It will reduce the electrical output to maintain bleed air pressure
What is the primary source of cockpit air?
The left pack, upstream of the mix manifold
What would be your indication with a TR3 failure?
0 V & amps. TR 3 output is read at the TR.
What is the power source for TR3?
XFER BUS #2
How could you verify that TR1 had failed?
TR1 amps 0 and volts normal
If the DC meter switch is placed to the standby power position, what would you be able to read?
DC standby bus voltage only
Normally, what would you expect to happen if the DC bus number 1 or Transfer bus number 1 failed?
The battery bus would power the standby DC bus and the standby AC bus through the static inverter
What are the normal and backup power sources for the standby AC and DC buses?
All of the above
What malfunctions does the reset button effect?
Bleed trip, pack trip, duct overheat
What would be a reason to switch the standby power switch to battery on the ground?
None as the standby buses are powered with the battery switch in the on position on the ground
What are the power sources for the battery bus?
Both A and C
- with normal AC power and the battery switch on-TR3
- with loss of AC power in Flight-the battery
With the battery switch off and ground power supplying ground services in the cabin, are the batteries being charged?
Yes, because the ground service buses supply the battery chargers
How long will the battery provide standby power?
60 minutes with the two battery option
What is the function of the recirculation fan?
Both A and B
- reduces fuel consumption
- reduces the amount of bleed air demanded from the packs
When are the deflector doors extended?
On the ground
What is the power source for the recirculation fan?
Driven by an AC motor
When will be EQUIP COOLING OFF light illuminate?
When airflow is insufficient to cool the airflow sensor
What is the maximum lateral fuel imbalance?
1000 pounds for all phases of flight
Describe the normal fuel loading sequence
Fill the main tanks to full, then center tank.
With fuel in all tanks and all boost pumps on, how is feel feed scheduled to the engines?
Center tank to both engines until the tank is empty, then main tank to respective engine
When is the air conditioning ram air deflector door open?
When on the ground
What is the power source for the pack valves?
The battery bus
A pack valve can automatically regulate to high flow:
A and B
- except on the ground, or in the air with flaps extended
- The other pack is not operating
The forward outflow valve will open automatically:
It’s a trick! There’s no forward outflow valve
The overboard exhaust valve closes:
At high cabin differential cabin pressures
When is the overboard exhaust valve open?
On the ground
When does the aircraft start pressurizing?
It starts pressurizing the cabin at higher power settings on the ground
What causes illumination of the equipment cooling off light?
A loss of airflow
What action is required when the equipment cooling off light illuminates
Place the switch to alternate
What is the source of equipment cooling air?
Conditioned air from the cockpit is drawn across the circuit breaker panels, then routed through the E & E compartment racks.
Where does the fuel temperature indicator get it’s reading?
1 main tank
With all fuel pump switches on and the forward pump in the number one tank not working, when will the master caution and fuel cap lights illuminate?
Both A and C
- when the CAP Panel is pressed for recall
- when the second pump in that tank quits
With total loss of normal AC power, can the engines still be provided with fuel?
Yes, through section feed from the main tanks only
At what cabin altitude will the cabin oxygen masks automatically deploy?
At approximately 14,000 feet cabin altitude
The fuel pumps for the main and center tanks are powered by which electrical system?
AC
What is another purpose of the defueling valve?
Ground transfer of fuel
A center tank fuel pump low-pressure light will illuminate when the pump switch is off
False
Each tank supplies pressurized fuel by using ___ boost pumps
2
With the crossfeed valve closed, the left center tank boost pump will feed the left engine and the right-center tank boost pump will feed the right engine, until the center tank is dry.
True
With a complete loss of electrical power, only fuel from which tanks will be available?
Main tanks
The Fuel quantity indicators are found on the upper MFD panel and require standby AC power to operate
True
In Flight, when when the crossfeed valve is open, fuel may be fed from any tank to:
Either engine
The engine fuel shut off valves may be closed by:
Both A and B
- pulling the engine fire warning switch
- placing the engine start lever to cut off
Which valve interconnects the engine feed system to the fueling station?
Manual defueling valve
The power transfer unit provides an alternate source of hydraulic power for autatic extension of the autos lays if the system B engine driven pump pressure falls below limits.
True
Can the standby hydraulic pump operate the thrust reversers?
Yes, but more slowly than normal operation
When both the crossfeed switch and the crossfeed valve are open, the crossfeed valve open light will:
Iluminate dim blue
For a fuel annunciator and master caution light to illuminate, two fuel low-pressure lights must be illuminated in the same wing tank(except on Recall)
True
When the landing gear is up and locked, all landing gear indicator lights will be extinguished when the landing gear lever is placed in what position?
Either A or B
Up or off
The maximum fuel imbalance for landing is?
1000 pounds
What does the illumination of the fuel filter bypass light indicate?
Impending filter bypass
Wing tanks number one and number two must be full if the center tank contains more than what about?
1000 pounds
The warning horn will sound when landing gear is not down and locked, flaps greater than 15 and the thrust levers are at idle; it cannot be silenced
True
Air/ground safety sensors are located on what gear?
All of the above
The engine fuel shut off valve is:
DC powered (hot battery bus) and controlled by the engine start lever and/or the engine fire switch
What ensures proper fuel flow direction and prevents transfer of fuel between tanks?
Check valves
If the trailing edge flaps were extended and retracted by the alternate method, according to procedure; how long would it be before you could extend the trailing edge flaps again?
Five minutes
Which outflow valve motor does the auto mode use?
A DC motor
If the cowl valve fails to agree with the position of the engine anti-ice switch, what will the indication be?
The COWL VALVE OPEN LIGHT will be bright blue
In auto mode, where does the controller derive its altitude information?
From the ADIRUs
If unable to close the engine anti-ice valve in flight, what should the crew do?
Limit the thrust in the affected engine to 80% N1 if TAT exceeds 10C
What does an illuminated COWL ANTI-ICE light mean?
An over pressure condition exists in the cowl anti ice duct
The engine anti ice should be turned on at what time?
When icing conditions exist or are anticipated
What is the maximum airspeed for extending the landing gear?
270 kts
The purpose of the single point fueling system is to allow:
All of the above
Rapid fueling, gnd transfer and defueling
Is it possible to service the center tank without single point fueling?
Yes, by the use of ground transfer
If both A and B hydraulic systems failed could any of the primary flight controls be hydraulically powered?
Yes, the rudder thru the standby rudder power control unit powered by the standby hydraulic system
With the loss of all generators, both center tank boost pumps are inoperative and the fuel in the tank is no longer usablea
True. Suction feed is available from main tanks only
Where does the Auto mode of the pressure controller receive its barometric reference?
From the BARO selectors through the ADIRUs
Yaw damper operations occur only when what hydraulic system is operational?
B system
Where does the ALTN mode get its barometric reference?
From the BARO selectors through the ADIRUs
If an OVERHEAT light cannot be extinguished by using the recommended overheat procedures, which engine procedures should be followed?
Engine failure,fire,severe damage, or separation
How many minutes prior to takeoff should the window heat be turned in?
10 min
With the overheat detector switch in normal, which loops must sense an overheat or fire condition before an overheat or fire warning is activated?
Both A and B loops
A green window heat on light illuminates:
Whenever the window heat controller is applying heat to the associated window
Pulling and rotating a fire warning handle will discharge the fire extinguisher selected even when the battery switch is OFF
True
The results of pulling the APU fire warning handle are:
Both of the above
APU shutoff valves closes. Bleed air valve closes. Inlet door closes.
Trips the generator control relay. Arms the extinguisher.
When the FLT/GRD switch is placed in the FLT position, what does the system do?
It’s a trick! There’s no FLT/GRD SWITCH
APU fire detection loop failure is indicated by the illumination of which light?
APU DET INOP light
The FAULT light monitors which detector loops?
Engine #1 and Engine #2
How are the fire warning switches unlocked manually?
Both A and B
By pressing he override release
By conducting a FIRE test, then pulling the switch
If a flight attendant turns on the a Emergency exit lights on the aft panel, is there a cockpit indication and can the cockpit crew override the F/A switch?
No indication in the cockpit, the pilots switch will not override the F/A switch
What does the green disk on the right side of the fuselage indicate?
Crew oxygen thermal pressure relief disk
If ground power is being supplied to the aircraft and APU power is put on one bus, does the ground power trip off the line?
No, ground power will continue to power the other side until it is removed, or another power source powers that bus.
What is the minimum fuel to operate the electric hydraulic pumps on the ground?
1675 pounds in each wing tank
Why is there a minimum fuel requirement to operate the electric hydraulic pumps?
The A and B system heat exchangers are located in the main tanks
What are the primary and the backup sources of power for the transfer buses ?
Primary: respective IDG
Backup: opposite XFER bus
At what degree of control wheel displacement does Flight spoiler deployment begin to assist the ailerons in roll control?
10°
Does aileron trim physically effect control wheel position?
Yes. The control wheel position directly indicates the amount of aileron trim applied.
What is the function of a TR?
Convert 115 V AC power to 28 V DC power
What is the voltage output of the TR’s?
28 volts
If the trailing edge flaps are extended by the alternate method, what flap protections are available
None
What powers the trailing edge flaps down with the alternate flaps system selected?
An electric motor
When is the automatic standby power feature available?
Always. It functions the same on the ground as in the air.
Which of the following is not on the hot battery bus?
Standby Runner shut off valve
If the system B electric pump or lines developed a leak what would the indications be?
The quantity indication would go to zero. But sufficient fluid would be available to operate the power transfer unit.
If you lost all standby system hydraulic fluid, would there be a cockpit indication?
Yes. The standby low quantity light would be illuminated and system B reservoir would read one half and RFL
What activates the standby hydraulic pump?
All of the above and activation of the FFM
What is the power source for APU start?
A and B
- AC power if available
- Main battery only if AC not available
Will the autobrake disarm light normally illuminate after take off with RTO selected?
No
When selected, at what speed is RTO available?
Above 90 knots
What is the maximum airspeed for retracting the landing gear?
235 knots
When is the fuel heated?
The fuel is constantly heated by a fuel\oil heat exchanger
When retracting the highlift devices using the alternate method will the LED’s return to the retracted position?
No
What are the two sources of power for the ground service bus?
Both A and C
- Transfer bus one
- Ground power via the ground service switch on the F\A panel
When are the ground service buses powered?
When external power is available and the ground service switch is on, or both transfer buses are powered
When is the latest you should wait for oil pressure to be indicated?
By idle RPM
The APU has an overheat warning system
False
Must the battery switch be on to operate the APU?
Yes, on the ground and in Flight
Can the APU be started without the battery?
No, the battery is required
What actuates the thrust reversers?
Hydraulic pressure
What do the start levers control?
Both A and C
- fuel
- ignition
How long should you operate the APU before using it as a bleed air source?
1 minute
The EGPWS gets position information from:
GPS position
When are the aux and main batteries tied together?
When the batteries are the only source of power (except during APU start)
What is the primary source for DC power?
Three transformer rectifiers (TRs) and a ground service TR
What is the maximum EGT allowed during engine start?
Not given, but the APU start will automatically terminate in an exceedance
What would indicate an APU hung start?
The start is automatically terminated
How high may the APU be started?
Up to the service ceiling of the aircraft
What is a good test indication of the TCAS?
A and B
- Four traffic symbols on the NDs
- An aural message that the test is okay
