What is the apu - Study guides, Class notes & Summaries

What is the typical relationship between an aircraft's auxiliary power unit (APU) generator and the engine driven generator? - They are identical. Where does the APU fuel supply normally come from? - The airplane's main fuel supply. How is the APU rotated during start up? - With an electric starter. What is the function of an APU air inlet plentum? - It is to stabilize the pressure of the air before it enters the compressor. When operating at high loads, what is the speed of an APU? - Th...

ABX 767 Systems Oral Prep Questions and Answers 100% Pass When you walk into a cold, dead airplane, what are your first steps towards applying electrical power? - ANSWER-Battery switch ON, STBY PWR Selector to AUTO What buses are now powered? - ANSWER-Hot battery, battery, standby AC, standby DC What do you have now for instruments, communications, and navigation - ANSWER-Standby ADI, airspeed, altimeter, and engine instruments, left VHF, left VOR, center ILS, magnetic compass If ther...

What does the AVAIL light allow you to do? - ️️The ground handling bus is now powered (EXT AVAIL or APU), the cargo doors and handling system, as well as the auto refueling system, are also powered and usable. The ground service bus could also be selected over to the ground handling bus(door 1L). Oh yeah, of course the AVAIL also allows you to select external power ON. Okay we're onto the Yaw Damper switches now. You look up and notice both INOP lights are illuminated. Why is this? ...

According to the SOPM, when should the APU be turned on? - ️️"Approximately 10 minutes prior to departure, start the APU and give the command/signalwhen ready to disconnect the air and/or ground power." All primary flight controls except for the ailerons are controlled by what? - ️️Fly-by-Wire ( FBW) At what speed does the TAS, TAT, and SAT information become valid and accurate? - ️️Above 60 kts Briefly explain how a LAV SMOKE EICAS message would appear. - ️️Smoke is detecte...

AQP UPS MD-11 Test Questions & Answers 2012/2013 What are the four different sources of electrical power available to the aircraft? - ANSWERS3 Integrated Drive Generators (IDG's), APU Generator, External Power, Air Driven Generator (ADG) How do the AC busses operate in parallel? - ANSWERSAutomatically through the AC Tie Bus How does the APU generator provide power to the AC system? - ANSWERSThrough its own independent supply network, it can not be connected to the AC Tie Bus Th...

Falcon 2000 Easy Exam Questions and Answers All Correct What will the APU do if it starts a fire on the ground? - Answer- APU will automatically shut down. What will happen to the APU bleed valve (In the auto position) when A/I is in operation? - Answer- Closes automatically Where is the APU EGT displayed? - Answer- On the ENG-TRM-FUEL page when the APU master switch is on. If you were to be at FL 280 what would be your limit on generator amps for the APU? - Answer- 200 amps What ha...

A successful FDR (flight data recorder) test consists of pressing the FDR test button and verifying that no FDR EICAS message appears? (true or false) - ️️True According to the SOPM, how can you identify if the flashing light is sufficiently charged? - ️️Flashing red LED light According to the SOPM, the use of FMS speeds is allowing during all flight conditions, including single engine flight? (true or false) - ️️True Advisory messages are identified by what color? - ️️Cyan A...

Baker's General, Airframe, & Powerplant Oral & Practical II UPDATED Exam Questions and CORRECT Answers What is the typical relationship between an aircraft's auxiliary power unit (APU) generator and the engine driven generator? - Ans They are identical. Where does the APU fuel supply normally come from? - Ans The airplane's main fuel supply. How is the APU rotated during start up? - Ans With an electric starter. What is the function of an APU air inlet plentum? - Ans It is to stabil...

The PFDs, MFDs, and the EICAS are classified as what? correct answers Display units To access drop down menus and other on screen items on the MFD you would use what? correct answers Control cursor device The maximum operating altitude for the APU is _________. correct answers 33000 The cockpit controls for the engines are located where? correct answers Control pedestal What panel allows the pilot to select modes for lateral and vertical flight paths and to select airspeeds? correct ...

Mesa Airlines Systems testAPU GEN VOLTAGE - correct answer 40KVA APU PNEAMATIC FOR - correct answer MAIN ENGINE STARTS AIR CONDITIONIING apu ecu controls - correct answer apu during all phases apu control sys give priority to - correct answer electric loads pressurized fuel to apu by - correct answer apu fuel pump internal bypass valve for apu does - correct answer apu can run if apu pump fails apu rpm found on - correct answer eicas status page apu bleed air control by - co...