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Aircraft Actuator Sensors Quiz

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Questions and Answers

What does the amber CAS message 'L-R Elevator Fail' indicate?

Both Redundant Elevator Units (REUs) have failed or there is a loss of elevator command to both elevators.

What is the function of the main ram LVDT in the elevator system?

The main ram LVDT measures the position of the power control unit main ram for the purpose of positional closed-loop control of the main ram.

What does the amber CAS message 'Pitch Control Miscompare' indicate?

The pilot and copilot pitch control column positions are different.

What does the EHSV main control valve control in the elevator system?

The EHSV main control valve controls the main ram velocity and direction of motion. Signup and view all the answers

What does the amber CAS message 'Elevator Single Actuator' indicate?

A single elevator actuator has failed. Signup and view all the answers

What does the amber CAS message 'Pitch Authority Limit' indicate?

The pitch axis flight control surfaces are approaching maximum displacement. Signup and view all the answers

What electronic component provides closed-loop control of the main ram position?

The main ram LVDT provides positional closed-loop control of the main ram. Signup and view all the answers

What does the amber CAS message 'Stall Protection Unavailable' indicate about the system status?

The angle of attack (AOA) data is unavailable or the flight control mode is other than normal. Signup and view all the answers

What procedure is recommended for the 'L-R Elevator Fail' CAS message?

Continue flight within flight envelope limitations and attempt FLT CTRL RESET. Signup and view all the answers

What does the amber CAS message 'Vertical Coupling Data Invalid' indicate?

The vertical coupling data required for normal operation is invalid. Signup and view all the answers