30 Questions
What is the primary function of the Power Supply in the MAU?
To translate aircraft power to backplane conditioned power
What is the role of the Network Interface Controller (NIC) in the MAU?
To manage communication in the MAU
What type of processing system is used in the User Modules?
Digital Engine Operating System (DEOS) compliant processing system
What is the purpose of the User Modules in the MAU?
To perform various aircraft control and monitoring functions
What is the function of the custom and generic I/O in the User Modules?
To provide various aircraft sensor and system inputs and outputs
What is the role of the NIC in relation to the internal backplane bus and external bus systems?
To supply the interface between the internal backplane bus and external bus systems
What is the primary function of the Modular Avionics Unit (MAU) in the Embraer 170/190?
To host independent applications and supply input/output interface services
What is the purpose of the front connectors on the Line Replaceable Modules (LRM)?
To connect to the aircraft system wiring
What is the benefit of having two independent processing systems (channels) in each Modular Avionics Unit (MAU)?
To provide redundancy and ensure system reliability
What is the Virtual Back Plane Bus used for in the Modular Avionics Unit (MAU)?
To enable communication and power supply between Line Replaceable Modules (LRM)
What is the purpose of the Metal Cabinet in the Modular Avionics Unit (MAU)?
To solidly ground the MAU to the aircraft frame
What is the function of the Line Replaceable Modules (LRM) in the Modular Avionics Unit (MAU)?
To be plugged into the Backplane for power and communication
What happens to frames with errors in a network?
They are disregarded by all nodes
What is the purpose of the Actuator Input-Output Processor (AIOP) modules in the autopilot system?
To perform computations and data processing for the autopilot and Yaw Damper functions
What is the result of detecting too many errors in the network?
Individual nodes stop transmitting errors or disconnect themselves from the network
What is the role of the Flight Guidance Control System (FGCS) in the autopilot system?
To drive the autopilot control systems via clutched electro-mechanical servo assemblies
What happens when a node detects an error in the network?
It retransmits the data
What is the purpose of the clutched electro-mechanical servo assemblies in the autopilot system?
To operate in parallel with the normal pilot commands when engaged
What is the purpose of the rudder pedal LVDT signal in the autopilot system?
To contribute to the calculation of the rudder actuator command
What is the role of the FCMs in the autopilot system?
To combine autopilot pitch trim commands with configuration trim
What is a characteristic of IMAs within a given type?
They are interchangeable but may require a software reconfiguration
What is an example of an avionics application hosted by an IMA in a B787?
Flight data acquisition and recording
What is the purpose of the CAN bus interface in the autopilot system?
To transmit consolidated commands to the horizontal stabiliser
What is an example of a mechanical system controlled by an IMA in a B787?
Brake system
What is the primary function of the Input/Output Module in the Avionics Data Communication Network?
To convert non-AFDX data into AFDX data
Which of the following systems is NOT a fuel application?
Landing gear extension and retraction system
What type of technology is used for communication between ADCN subscribers?
AFDX technology
What is the primary characteristic of all Input/Output Modules?
They are fully interchangeable
Which of the following is a data link application?
Air traffic control system
What is the term used to describe the computers connected directly to the Avionics Data Communication Network?
ADCN subscribers
This quiz covers the integrated modular avionics architecture of Embraer 170/190 aircraft, including the modular avionics units and data buses. It is part of the CASA Part 66 training materials for turbine aeroplane aerodynamics, structures, and systems.
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