ENDEAVOR AIR CRG 900 SYSTEMS STUDY
GUIDE EXAM QUESTIONS AND VERIFIED
ANSWER|| GUARANTEED PASS || ALREADY
GRADED A+|| LATEST UPDATE 2025
What does the generator control unit (GSU) do? - ANSWER-Provide AC
voltage regulation and fault protection for the AC electrical system.
When will the GSU execute generator protective shutdowns? - ANSWER-
Over/under voltage or frequency
Gen or bus over-current
What causes an IDG 1(2) FAULT/DISC? - ANSWER-HOT/LOP
High oil temperature
Low oil pressure
When must an IDG be manually disconnected? - ANSWER-High internal temp
Over-torque
Can an IDG be reconnected after disconnect? - ANSWER-Only on the ground
by a mechanic.
Can the APU GEN be disconnected from the APU gear box? - ANSWER-No
, Which hydraulic pump runs continuously when the ADG deploys? - ANSWER-
3B
What does the ADG power? - ANSWER-AC ESS bus which powers DC ESS
bus through the ESS TRU
When does the ADG deploy? - ANSWER-Loss of all AC power
Max taxi/ramp weight - ANSWER-85,000 lbs
How can you box status messages? - ANSWER-STAT button
What does the display recessionary control panel do? - ANSWER-Allows the
EICAS screens to be displayed on either MFD
What keys still work during an ECP failure? - ANSWER-PRI, STAT, CAS,
STEP
What is the maximum permissible time for ground operations with CRT
displays DC power? - ANSWER-5 minutes
Is the passenger door a plug type door? - ANSWER-No
How many stairs on the plane? - ANSWER-5 stationary and 2 retractable
Is the avionics bay pressurized? - ANSWER-Yes
Is the aft equipment bay pressurized? - ANSWER-No
Are the cargo doors plug type? - ANSWER-Aft=yes forward=semi-plug
GUIDE EXAM QUESTIONS AND VERIFIED
ANSWER|| GUARANTEED PASS || ALREADY
GRADED A+|| LATEST UPDATE 2025
What does the generator control unit (GSU) do? - ANSWER-Provide AC
voltage regulation and fault protection for the AC electrical system.
When will the GSU execute generator protective shutdowns? - ANSWER-
Over/under voltage or frequency
Gen or bus over-current
What causes an IDG 1(2) FAULT/DISC? - ANSWER-HOT/LOP
High oil temperature
Low oil pressure
When must an IDG be manually disconnected? - ANSWER-High internal temp
Over-torque
Can an IDG be reconnected after disconnect? - ANSWER-Only on the ground
by a mechanic.
Can the APU GEN be disconnected from the APU gear box? - ANSWER-No
, Which hydraulic pump runs continuously when the ADG deploys? - ANSWER-
3B
What does the ADG power? - ANSWER-AC ESS bus which powers DC ESS
bus through the ESS TRU
When does the ADG deploy? - ANSWER-Loss of all AC power
Max taxi/ramp weight - ANSWER-85,000 lbs
How can you box status messages? - ANSWER-STAT button
What does the display recessionary control panel do? - ANSWER-Allows the
EICAS screens to be displayed on either MFD
What keys still work during an ECP failure? - ANSWER-PRI, STAT, CAS,
STEP
What is the maximum permissible time for ground operations with CRT
displays DC power? - ANSWER-5 minutes
Is the passenger door a plug type door? - ANSWER-No
How many stairs on the plane? - ANSWER-5 stationary and 2 retractable
Is the avionics bay pressurized? - ANSWER-Yes
Is the aft equipment bay pressurized? - ANSWER-No
Are the cargo doors plug type? - ANSWER-Aft=yes forward=semi-plug
