ATAC509 - Week 4 - Component Review

A detailed illustration of an aircraft generator and its components, showcasing voltage regulators and wiring connections, in a professional and educational style.

ATAC509 Aircraft Generator Quiz

Test your knowledge on aircraft generators with our comprehensive quiz tailored for aviation enthusiasts and professionals. This quiz covers the essential components and functions of aircraft generators and voltage regulators.

Whether you're a student revising concepts or a professional looking to refresh your knowledge, this quiz is perfect for you!

  • 23 multiple-choice questions
  • Challenging yet informative
  • Instant feedback on your answers
23 Questions6 MinutesCreated by FlyingWire742
Which of the following factors is used to control the output of a practical aircraft generator?
Speed of rotation of the armature
Number of windings in the armature
Number of lines of flux
Size of the armature
In a manually regulated voltage regulator, what is used to control the field current?
Carbon pile
Rheostat
Transistors
Voltage coil
Refer to the attached figure. What type of voltage regulator is shown here?
Carbon pile
Solid State
Manual
Vibrator Type
Refer to the attached figure. What type of voltage regulator is shown here?
Carbon pile
Vibrator Type
Solid State
Manual
Refer to the attached figure. What type of voltage regulator is shown here?
Solid State
Manual
Carbon pile
Vibrator Type
What must be done on a multi-engine aircraft with parallel generators?
Adjust or parallel the voltage regulators to ensure equal load sharing
Ensure that all load is carried by one generator allowing the 2nd to be used as a backup
Adjust voltage regulators so that each generator output is split and supplies power to only ½ the systems
No special adjustments are required
What extra precaution must be taken when AC generators are operated in parallel?
Their phases must be 180° out of phase
Their frequencies must be aligned
Their frequencies and phases must both be aligned
Their phases must be in phase
What component prevents the aircraft battery from discharging through a failed generator?
Battery relay
Current transformer
Reverse current relay
Current limiter
How does a voltage regulator control the output of an alternator?
Controls the voltage output by dumping excess voltage to ground
Controls the amount of stator current by adjusting resistance of stator windings
Controls the amount of field current, thus controlling field strength
Turns an output relay on and off as required to allow voltage through
If excessive current is being produced by the generator, what component will protect the system from damage?
Current limiter
RCR
Voltage regulator
Generator control relay
Refer to the attached figure. What component is the arrow pointing towards (inside the black square)?
Battery relay
Voltage regulator
Reverse Current Relay
Current limiter
What is the purpose of a generator control unit?
The control panel that contains the switches and indicators for controlling the generator
Allows the AME to access and troubleshoot all aspects of the generator system
Allow the pilot to turn the generator on and off
Monitor and control generator operation
What are used to sense voltage, current, frequency and phase of a generator?
Voltage coils
Contactors
Current transformers
RCRs
The signals sensed by the current transformers are sent to what component?
Current limiter
GCU
RCR
Voltage regulator
What happens if the GCU detects a fault?
Field circuit opens
Records fault for future analysis
Field circuit closes
Generator contactor closes
What happens if the GCU detects a fault?
Field circuit closes
Generator contactor closes
Trips the generator offline
Generator output is applied to the bus
The process of dropping non-essential busses is known as what?
Load rejection
Load transfer
Load shedding
Load drop-out
The process where the operational generator supplies the busses on the failed generator side is known as?
Load equalizing
Load sharing
Load transfer
Load shedding
If a new generator is installed in an aircraft and there is no output produced, what should be done?
Replace defective generator with a new one
Replace the voltage regulator
Flash the field
Allow generator to sit for 1 hour prior to applying power
What component controls the field current in a generator/alternator?
Battery master
Voltage Regulator
Reverse Current Rely
Starter vibrator
A "feeder fault" would refer to what type of fault?
Failure of a load circuit
Failure of a generator
Loss of battery voltage
A wiring problem in an avionics circuit
When would a reverse current relay open?
When generator voltage is lower than battery voltage
When excess current flows from the generator
During normal operation
When generator voltage is higher than battery voltage
Which of the following components would not be found inside a generator control unit?
RCR
Battery master relay
Voltage regulator
Current limiter
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