What is the apu - Study guides, Class notes & Summaries
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Mesa Airlines E175 Systems Study Guide questions with correct answers
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How many engine driven generators? Rating? CORRECT ANSWER-2 IDGs (Integrated Drive Generators) 
115VAC, 400Hz, 40KVA 
 
What kind of APU? Rating? CORRECT ANSWER-Sundstrand APS 2300 
115VAC, 400Hz, 40KVA 
 
What is the RAT rated at? CORRECT ANSWER-115VAC, 400Hz, 15KVA 
 
What is the Normal AC Electrical Priority? CORRECT ANSWER-- Onside (IDG) 
- Inside (APU) 
- Outside (GPU) 
- Cross-side (Opposite IDG) 
 
When does the RAT automatically deploy? CORRECT ANSWER-Loss of all AC power in flight (elec...
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Delta FA training midterm review with complete solutions
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Delta FA training midterm review with complete solutions 
What type of reporting system would you use to report issues such as: aircraft emergency, passenger disruption, medical emergency, or security issues? SRS 
What type of reporting system would you use to report issues such as: catering issues, aircraft cleanliness, flight delays, or IFE issues? FACTS 
An event such as a passenger illness or failure to comply with FAA regulations needs to be reported in SRS by when? Upon the completion of y...
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Mesa Airlines E-JET Systems Exam questions with correct answers
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What happens if a generating (IDG) source fails? CORRECT ANSWER-Bus ties automatically connect to provide no system degradation 
 
One IDG can supply the entire electrical system? CORRECT ANSWER-TRUE 
 
What will cause the amber IDG light on the overhead panel to illuminate? CORRECT ANSWER-a. High oil temperature 
b. Low oil pressure 
(HOTLOP) 
 
How long will the aircraft's batteries last with no recharging? CORRECT ANSWER-10 minutes 
 
With both IDG's and the APU generator off-line, and the ...
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Boeing 747-400 SonAir with Questions and Answers
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Boeing 747-400 SonAir with Questions and Answers 
 
How many engines does the 747-400 have ANSWER 4 wing mounted General Electric turbofan engines 
 
How are engines numbered ANSWER From left to right. Engine 1, engine 2, engine 3 and engine 4 
 
How many zones is the main deck divided into ANSWER 5 zones 
 
How are main deck zones identified ANSWER Zone A through E 
 
How many zones on upper deck ANSWER 1 
 
What is the cruising altitude? ANSWER 45,000 ft 
 
APU ANSWER Auxiliary Power Unit 
 
W...
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Mesa Airlines CL-65, CRJ 900 Systems questions with correct answers
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The APU is equipped with a CORRECT ANSWER-40 KVA generator 
 
The APU supplies pneumatic power for CORRECT ANSWER-Main engine Start and Air Conditioning 
 
The APU ECU (Electronic Control Unit) controls the APU during CORRECT ANSWER-All phases of operation 
 
The APU control system ensures priority is given to CORRECT ANSWER-Electric loads 
 
Presurized fuel is supplied to the APU by the CORRECT ANSWER-APU fuel pump 
 
What is the purpose of the internal bypass valve? CORRECT ANSWER-Allows the A...
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Skywest E175 Sv Gouge 2024 Exam
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Skywest E175 Sv Gouge 2024 Exam 
What is ATTCS - ANSWER-Automatic Takeoff Thrust Control system 
What is the maximum altitude the APU can be started at? - ANSWER-FL330 
What is the maximum fuel capacity of the ERJ-175? - ANSWER-20,935lbs 
What is the maximum fuel imbalance for the ERJ-175? - ANSWER-794lbs
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FALCON 7X GENERAL EXAM QUESTIONS & ANSWERS 2024/2025
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FALCON 7X GENERAL EXAM QUESTIONS & ANSWERS 2024/2025 
 
 
Immediately after starting the APU, it is noticed that there is no air flowing through the gaspers and BLEED synoptic shows the APU bleed valve to be closed. Is this normal? - ANSWERSYes, the APU bleed valve will not open until 2 minutes after the APU has been running. 
 
What function does the "REMOTE" soft key on the ECS synoptic serve? - ANSWERSCabin temperature control can be controlled from the cabin. 
 
What are some consideration...
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Baker's General, Airframe, & Powerplant Oral & Practical II | 500+ Questions with 100% Correct Answers | Verified | Latest Update 2024
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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...
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Erj 175 Systems 2024 Exam
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Erj 175 Systems 2024 Exam 
What will happen if the Cargo fire push button is pressed again after the high rate bottle is discharged within 60 seconds? - ANSWER-The low rate bottle will immediately discharge 
When a normal APU shutdown occurs, when is pneumatic and electric power removed? - ANSWER-Pneumatic immediately 
Electrical after 1 minute cool down
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Mesa Airlines Systems test question n answers graded A+
- Exam (elaborations) • 29 pages • 2023
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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...
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