4 boeing ramp

Where are the thrust reverser feedback units located?. Next to the upper actuators. Inside of the lower actuators. Aft zone of translating sleeves.

How does the EEC detect if a Low Pressure shaft (N1) breakage has occurred?. Detecting an un-commanded N1 deceleration. Detecting a difference between low turbine speed and low compressor speed. Detecting a difference between high compressor speed and low compressor speed.

For boroscope purposes How can be turned manually the IP Drum?. Moving the fan disk faster than normal. Using a special tool to conect in either VFSG. With a turning tool that attaches to the breather housing.

How many igniters are used by the EEC for in flight engine start?. One igniter during first attempt and both two igniters for others attempts. One igniter only. Both two igniters.

The drains collector tank receives fuel drained from: Fuel manifold after an engine shutdown on ground or flight. VSV and TCC servo actuators. Fuel manifold after an engine shutdown on ground only.

The type of compressor that the APU has is: Centrifugal and axial, dual stage. Axial, dual stage. Centrifugal, single stage.

If the secondary air system (SAS) valve is open, which air is used to seal and pressurize the HP / IP turbine bearing chamber?. IP 8. HP 6. HP 3.

The fuel pump of the APU: It is an electrical two stages pump, controlled by the APUC. It is located in the LH wing tank (aircraft). It is a mechanical pump, driven by an accessory gearbox.

If the fuel control switch is in cutoff position, the engine fire switch (fire handle) is: Locked, because there is no engine fire. In the last position. Unlocked.

The Rolls Royce Trent 1000 has shaft breakage detections in: All three shafts. N1 and N2 only. N1 only.

Which air is used by the engine section stator (ESS) system to prevent ice in the intermediate inlet compressor?. HP6. IP8. 2,5 station.

How many bleed valves are there?. Five, 3 IP and 2 HP bleed valves. Five, 2 IP and 3 HP bleed valves. Four, 2 IP and 2 HP bleed valves.

When is the amber REV indication shown on the EICAS?. When the translating sleeves have been move more than 10% and less than 90% of deploy. When a thrust reverser trouble has occurred. When the translating sleeve are fully deployed.

Where is the APU controller located?. Aft E&E compartment. E12 Rack, forward of the bulk cargo door. Forward E&E compartment.

For starting purpose, the APU uses: Both ASG, allways. Pneumatic Starter. One ASG.

The APU controller sends a close signal to APU air inlet door if: APU RPM is less than 15%. The APU selector switch is in off position only. The remote shutdown switch in the P40 is pushed.

To pressurize and control the fuel for starting and normal operation, the system uses: A fuel module. A mechanical fuel pump and control unit. A fuel control unit.

HP shaft is supported by: Front one ball bearing, and rear one roller bearing. Front one roller bearing and rear one ball bearing. Front two ball bearing and rear one roller bearing.

When airborne, and if the airplane does not have any variable frequency starter generator (VFSG) on-line, the auto start function occurs: After 120 second delay. Immediately, with no delay. After 60 second delay.

The oil debris signal conditioner is used to: Compare the oil debris sensor (ODS) data to predetermined levels. Read data from engine oil level sensor. Trigger a status messages if the oil supply filter is clog.

How could you open the T/R cowls for maintenance if the power door opening system (PDOS) is inoperative?. You can use the right hydraulic system. You can not open the T/R cowls if the PDOS is inoperative. You need use a manual hand pump method.

The main parameter of the Trent 1000 engine is: EPR. N1. TPR.

How many low pressure turbine speed probes are there?. Four. There are not turbine speed probes. Two.

The fuel scavenge pump and fuel scavenge isolation valve work together to: Remove all fuel from center tank. Drain fuel from surge tank, during overfill operation. Remove fuel from main tanks.

When the fuel density sensor (FDS) measures the fuel density?. During ground operation only. Is used in all airplane operations. During flight only.

Water scavenge jet pumps are used to: Prevent water build-up in the main tanks only. Move fuel from the center tank to the main tank. Prevent water build-up in all tanks.

For supplying fuel to the combustion chamber, the fuel system has: 12 duplex nozzles. 6 simplex and 6 duplex nozzles. 12 simplex nozzles.

How many fuel pumps are there in the fuel system?. Six pumps; two in each main tank, two in the center tank. Four pumps; one in each main tank, two in the center tank. Three pumps; one in each main tank, one in the center tank.

The jettison system remove fuel from: Main tank only. Center tank only. All three fuel tanks.

Fuel quantity management system (FQMS): Gives data to the common core system (CCS). Supplies power to the override jettison pumps. Controls fuel pump and valve operation.

The Fuel quantity data concentrator (FQDC): Is a function hosted in the CCS. Controls fuel valves and pumps operation. Converts Analog / Digital signals and send data to the CCS.

What functions can you do from the Refuel Control Panel (RCP)?. Refueling only. Balancing and Refueling only. Refueling, Defueling and Transfer.

During Battery power refueling procedure: Only Left main tank can be refeuled. Only Center tank can be refeuled. All fuel tanks can be refeuled.

If the APU fire extinguishing bottle has overpressure: The safety relief disc will break and the agent release into APU fire zone. APU fire extinguishing bottle does not have overpressure relief valve. The safety relief disc will break and the agent release into stabilizer compartment.

The cargo compartment fire extinguishing flow valves are used to: Send the fire cargo alarm to cargo fire protection system (CFPS) function. Send the extinguishing agent to forward or aft/bulk cargo compartments. Filter extinguishing agent from low rate discharge (LRD) bottles.

The air separation module has: Five membrane separators connected in parallel. Three membrane separators connected in serial. One active and two backup membrane separators.

How many channels does the squib monitor control unit (SMCU) have?. Three channels. One channel. Two channels.

In the nitrogen generation system (NGS), the flow control valve is used to: Control the nitrogen enriched air (NEA) temperature to main fuel tanks. Control the oxygen enriched air (OEA) flow overboard. Control the nitrogen enriched air (NEA) flow to the fuel tanks.

If both channels of squib monitor control unit (SMCU) are inoperative, then: The cargo fire extinguishing will work normally. The cargo fire extinguishing is inoperative. The cargo fire extinguishing is operative in aft cargo only.