Download J-MODEL APU TEST EXAM 2024/2025 WITH 100% ACCURATE SOLUTIONS and more Exams Nursing in PDF only on Docsity! J-MODEL APU TEST EXAM 2024/2025 WITH 100% ACCURATE SOLUTIONS List the 2 bold Emergency shutdown procedures in order. Word for word - Precise Answer ✔✔1 APU fire handle pulled 2. Agent discharged(for fire, if condition persists discharge remaining bottle What are the two acceptable ways to communicate during APU start? - Precise Answer ✔✔Interphone and visual communication In a battery self contained APU start, do you have firewarning detection? When? - Precise Answer ✔✔No, when AC power is up and online If the start light does not come on within___ seconds or by the time the rpm reaches_____percent, place APU control switch to stop. - Precise Answer ✔✔90, 50% What is the starter duty cycle for the APU? - Precise Answer ✔✔2nd- no wait/after turbine stops spinning. 3rd- 5 min. 4- 60 min and check starter What is the normal APU rpm operating range? - Precise Answer ✔✔98-105 Your egt indicator must not exceed what temperature? - Precise Answer ✔✔680 Celsius How many degrees will the APU door open on the ground? - Precise Answer ✔✔35 degrees How many degrees will the APU door be open in the air? - Precise Answer ✔✔15 degrees What tank does the APU get fuel from? - Precise Answer ✔✔#2 main fuel tank How many pounds of fuel are required when operating APU? - Precise Answer ✔✔2,000 lbs in #2 main tank What is the minimum DC volts required to start APU on the ground? What about flight? - Precise Answer ✔✔22 volts dc ground, 24 volts dc flight The APU fire handle de-energizes the circuit to the___ when pulled and closes the____. It also energizes___ system - Precise Answer ✔✔APU, APU door, fire extinguishing How far away from a building should you be before starting the APU? - Precise Answer ✔✔50 feet During APU startup how long do you hold the APU start switch for? - Precise Answer ✔✔1 second If isolated DC power is interrupted while APU is operating, place APU switch to ____ and wait____ minutes before continuing. - Precise Answer ✔✔Stop, 4 What is the cool down time for APU bleed air? - Precise Answer ✔✔2 Minutes What actions happen when APU starts in an emergency? - Precise Answer ✔✔Door opens 15 degrees, APU starts, and generator comes online Where are the APU emergency controls located? - Precise Answer ✔✔APU panel When is the fire department called in an emergency? - Precise Answer ✔✔Before aircraft battery is turned off According to the TO, what radio(s) are required to be on/set during self contained battery start? - Precise Answer ✔✔Get home control panel/ tower frequency According to the TO, what radio(s) should be on/set during an APU start with external power? - Precise Answer ✔✔UHF set to ground frequency What TO covers APU operations? - Precise Answer ✔✔49JG-00-1 The APU can be operated with the flight deck and/or cargo compartment air conditioning plugs in?(true/false) - Precise Answer ✔✔False The APU fire warning and smoke detection systems must be operational prior to operating the APU?(true or false) - Precise Answer ✔✔True What TO is the normal operation and shutdown of the APU located? - Precise Answer ✔✔49JG-00-1 What is the normal APU %rpm? - Precise Answer ✔✔98- 105% or approximately 100% What does EGT stand for? - Precise Answer ✔✔Exhaust gas temperature What is the minimum number of personnel required to operate the APU? - Precise Answer ✔✔2 After starting the APU, how long must you wait prior to placing the power selector switch to the APU position? - Precise Answer ✔✔No wait required Prior to shutting off the APU, the air conditioning system is required to be turned off? True or false - Precise Answer ✔✔True for atleast one minute., Prior to APU start, the APU alarm switch must be turned to what position? - Precise Answer ✔✔On In the event of a fire, what three things will happen? - Precise Answer ✔✔Steady lights in T-handles, Audial warning tone, flashing master warning lights. Why does an APU operator need to know emergency procedures? - Precise Answer ✔✔To be prepared to shutdown the APU immediately in case of an emergency. After APU is started and running what should the UNDERFLOOR Switch be set to? - Precise Answer ✔✔Fan