Full examen 5 (alternativo)

Which actuators have LVDTs ( Feedback) in the Thrust Reverser System. Two Upper. two Lower. All four.

Where is located the Inhibit Lever to Deactivate the Thrust reverser (T/R). In the HCU:. In the Lower Actuators. Under the Left Fan cowl.

The purpose of the Track Lock mechanism in the Thrust Reverser system is to: Lock both Translating sleeves (RH-LH). Lock the RH translating Sleeve. Lock the four Hydraulic actuators.

Where is located the HCU. On Top of the Fan Case, under the Fan cowls. Above the engine, in the Strut. Above the Engine, in the Left Aft Pylon.

When the Thrust Reverser System operates: It controls the direction of the Fan Air and Hot gases to make reverse Thrust. It controls the direction of the Fan Air exhaust to make reverse thrust. It controls all the Exhaust Gases to reverse Thrust.

During an AutoStar in Flight, and related to VFSG (the Starter): It is not necessary, always will Start by Windmill. If necessary, it will only require one VFSG (the Starter). Always will require both VFSG ( the Starters).

When is the fuel commanded to On (to the Fuel nozzles), during the Start Sequence?. Inmediately when the Fuel Control Switch is set to Run. When the Start Selector is set to Start. When N2 is more than 18%.

Which unit supply the electrical power (235 VAC) for the starter to to rotate and start the engine: BPCU. GCU. CMSC.

During a ground Engine Start, how many Starters are used?. 1. 2. The pilot select how many starters will be used.

When the engine stops, not running, in what condition are the Engine Bleed Valves?. open. closed. They can be open or closed.

Which compressor(s) has/have Variable Inlet Guide vanes(VIGV), and Variable Stator Vanes(VSV). HP compressor. IP compressor. Both, the HP and IP compressor.

When the HP/IP TCC valves are Closed, the supply of Cooling Air is (same as LP TCC): High flow, high cooling. Low flow, low cooling. Zero flow, no cooling.

In the TCC, Turbine Case Cooling system, how many valves are Hydraulically (Fuel) operated?. 1. 2. 3.

The Turbine Case Cooling (TCC) system, get cooling air from: HP6. IP8. LP bypass.

The opening and closing of the Bleed Valves of the engine are controlled by mean of: Hydraulic actuators and fuel pressure. Electrical actuators. Solenoids and HP6 pressure.

How many Bleed Valves does the engine have?: Three IP compressor, Two HP compressor. Two IP compressor, Three HP compressor. Five IP compressor.

To maintain a stable airflow through the engine (to avoid engine surge or stall), the engine uses this system: The Secondary Air System (SAS). The Engine Section Stator system (ESS). VIGV/VSV and Compressor Bleed Valves.

When the Engine Section Stator (ESS) anti Ice system is activated, the air is taken from (for anti ice): HP3. HP8. IP8.

Which unit/component determines the level of contamination (ferrous particles) in the scavenged oil?. The Oil Debris Sensor. The Oil Debris Signal conditioner. The E.E.C.

Related to the oil pump, what type of pump it is: Gear type, one pressure pump, ten scavenge pump. Vane type , one pressure pump, two scavenge pumps. Vane type, one pressure pump, Ten scavenge pump.

In the EEC modes, if the engines changes to Soft Alternate, the thrust of the engine will shown in: TPR indicator. N1 indicator. N2 indicator.

What will happen to the engine if the Overthreat Protection detect and activates the Thrust Control Malfunction Accomodation (TCMA) function: The engine goes to Idle. The engine goes to Shut Down. The engine can go to Overspeed.

What type of sensor supply thrust command signal to the E.E.C. when the Thrust lever are moved. LVDTs. Servo Motors. Resolvers.

In which fuel nozzles must be located the Steel Weights, that have a dash line on his end (-): 16 & 18. 8 & 12. At any position.

Which valve, in the HMU, controls the rate of fuel flow to the fuel nozzles: PRSOV. FMV. Dump valve.

What type of fuel pump does the engine have: Gearbox driven, one LP(centrifugal), one high pressure (geared). Gearbox driven, one LP(centrifugal), two high pressure (geared). Electrically driven, three stages, one LP, two HP.

How many vibration transducer does the engine have: 1. 2. 3.

How many sensors, and where are located to sense TGT (EGT) in the engine: Two thermocouples, sta 50. Twelve thermocouples, sta. 44. Six Thermocouples , sta.40.

The Power indication show the Thrust generated by the engine as: EPR. TPR. N1.

Which rotor drives the External Gearbox (accesory gearbox). LPC rotor. IP compressor. HP compressor.

Related to the HPC rotor, it turns, in which direction (aft looking forward): Clockwise. Counter clockwise. Same direction as the LPC rotor (FAN).

The turbine that drives the Fan (LP compressor), is, and have how many stages: HP turbine, one stage. IP turbine, two stages. LP turbine, six stages.

The engine station 30, is located: At the engine inlet. At the IP compressor Inlet. At the HP compressor outlet.

The LP shaft, N1, is supported by these Bearing: Front, roller; Mid, ball; Rear, roller. Front, ball; Mid, roller; Rear, roller. Front, roller; Mid, roller; Rear, ball.

The engine mount(s) that transmits : vertical, side, torsión and thrust forces is (are): Fwd. Aft. Both.

The four speed sensor in the Low Pressure Turbine, are used to: Sense the Low Pressure turbine Speed. Monitor the Fan Speed. Detect a breakage of the Low Pressure shaft.

The Drain Collector Tank, in the engine fuel system, collect fuel after engine shut Down: Only when shut down on ground. When shut down on ground or in flight. When shuting down in flight only.

Related to the PDOS Power Pack, when servicing the reservoir with fluid, the fluid to be used is: Fuel. Engine oil. HYD fluid.

What is the main purpose of the fuel storage system?. To cool the engines. To hold the fuel necessary for engine and APU operation. To store hydraulic fluid.

Which component prevents large pressure differences between the tanks and the external air?. Drain valve. Pressure relief valve. Refuel adapter.

Where is the refueling control panel (RCP) located?. In the cockpit. Under the left wing. In the aft equipment center.

What is the function of the fuel sump drain valves?. To measure fuel temperature. To remove water and contamination from the fuel tanks. To increase fuel pressure.

How many main fuel tanks does the 787 have?. One. Two. Four.

What controls the refuel valves during automatic refueling?. Manual switches. Fuel Quantity Management System (FQMS). APU Controller.

What is the purpose of the surge tank flame arrestor?. To increase fuel flow. To prevent flames from entering the fuel tanks. To cool the fuel.

Which pumps are used first to supply fuel to the engines?. Main tank boost pumps. Center tank Override/Jettison (OJ) pumps. Water scavenge jet pumps.

What does the crossfeed valve allow?. Refueling. One tank to supply fuel to both engines. Fuel temperature measurement.

What happens when the APU battery is used for start?. The right aft boost pump runs. The DC pump runs automatically. The OJ pumps run.

What is the function of the fuel vent system?. To heat the fuel. To reduce pressure differential between tank and ambient air. To measure fuel quantity.

Where are the OJ pumps located?. In the main tanks. In the center tank. In the wings.

What does the fuel shutoff module (FSM) do?. Opens the refuel valves. Provides emergency power to close the fuel shutoff valves. Controls the fuel temperature.

What is the main function of the refuel adapters?. To heat the fuel. To connect ground fueling nozzles to the refuel system. To measure fuel pressure.

How many fuel boost pumps are in each main tank?. One. Two. Three.

What does the water scavenge jet pump do?. Adds water to the fuel. Removes water from the main tanks. Measures water content.

What is the main purpose of the APU fuel feed system?. To supply fuel to the engines. To supply fuel to the APU. To supply fuel to the hydraulic system.

What does the fuel balance function do?. Measures fuel quantity. Refuels the airplanes. Corrects fuel imbalance between main tanks.

Which system controls the engine fuel feed valves?. APU Controller. Fuel Quantity Management System (FQMS). Refuel Control Panel (RCP).

What happens if the pressure relief valve in the boost pump opens?. Fuel goes to the engines. Unwanted fuel returns to the tank. The pump stops working.