Aircraft Governor Adjustment System
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Questions and Answers

What is the purpose of the charge pump in the hydraulic system?

  • Drain control oil to the transmission case
  • Supply filtered oil to various components in the hydraulic system (correct)
  • Pick up lube oil and internal leakage
  • Adjust the frequency of the system
  • How does clockwise rotation of the adjustment screw affect the system frequency?

  • Decreases the frequency
  • Causes erratic frequencies
  • Increases the frequency (correct)
  • Has no impact on frequency
  • Where is the transmission scavenge pump located in the hydraulic circuit?

  • Between the transmission sump and scavenge filter (correct)
  • Between the generator and scavenge filter
  • Between the all-attitude reservoir and charge filter
  • Between the generator cooling circuit and aircraft cooler
  • What happens if unstable and erratic frequencies occur in the system?

    <p>They cannot be corrected by governor adjustment</p> Signup and view all the answers

    How does counter-clockwise rotation of the adjustment screw impact system frequency?

    <p>Decreases the frequency</p> Signup and view all the answers

    What is the function of the generator scavenge pump in the hydraulic circuit?

    <p>Picks up generator cooling and lube oil</p> Signup and view all the answers

    What is the function of the hot battery bus in an aircraft?

    <p>Supplies power directly to critical loads</p> Signup and view all the answers

    Which bus system supplies power to essential lighting, flight control systems, and communication systems in an aircraft?

    <p>AC essential bus</p> Signup and view all the answers

    What type of systems are typically powered by the non-essential buses in an aircraft?

    <p>Galley power and non-essential lighting</p> Signup and view all the answers

    Which of the following is a common name for the non-essential buses in an aircraft?

    <p>Shed buses</p> Signup and view all the answers

    During partial generator system failure, what happens to non-essential systems in an aircraft?

    <p>They are isolated (turned off)</p> Signup and view all the answers

    Which bus system is connected to the aircraft battery?

    <p>Essential DC bus</p> Signup and view all the answers

    What component is responsible for providing a clean DC voltage to the 400 Hz oscillator in a static inverter?

    <p>Capacitors</p> Signup and view all the answers

    Which component in a static inverter ensures that the correct voltage and frequency are maintained?

    <p>Regulator circuit</p> Signup and view all the answers

    What is the purpose of the harmonic filter in a static inverter?

    <p>Remove everything that is not 400 Hz</p> Signup and view all the answers

    What role does the pulse shaper and power driver play in a static inverter?

    <p>Produce a 400 Hz square wave</p> Signup and view all the answers

    Why should static inverters be sent to approved facilities for repair?

    <p>To properly handle required repair work</p> Signup and view all the answers

    How do transformers allow AC voltage and current values to be changed?

    <p>By using a common core</p> Signup and view all the answers

    What is the purpose of a fuse in an aircraft power distribution system?

    <p>To limit current flow</p> Signup and view all the answers

    Which material is commonly used as an insulating material in a cartridge fuse?

    <p>Glass</p> Signup and view all the answers

    What happens when the current limit of a fusing link is exceeded?

    <p>The fusing link melts or blows</p> Signup and view all the answers

    In what scenario might a current limiter be more suitable than a fast-blow fuse?

    <p>During short, high-current faults</p> Signup and view all the answers

    What characteristic sets a current limiter apart from a fast-blow fuse?

    <p>It has a slower time to open than a fast-blow fuse</p> Signup and view all the answers

    Why should a fuse be replaced with one of the same voltage and current rating?

    <p>To maintain the system's safety and integrity</p> Signup and view all the answers

    What is the purpose of the body or case of a fuse?

    <p>To hold the fuse together</p> Signup and view all the answers

    Which material can the body or case of a fuse be made of?

    <p>Glass</p> Signup and view all the answers

    What are the basic components of a fuse's physical construction?

    <p>Body or case, mounting, fuse link</p> Signup and view all the answers

    Which type of fuse is designed for use in areas where a spark from a blowing fuse could be a hazard?

    <p>Ceramic fuse</p> Signup and view all the answers

    What purpose does the mounting of a fuse serve?

    <p>To form the electrical connection to the circuit</p> Signup and view all the answers

    Which part of a fuse 'breaks' the circuit when predefined limits are exceeded?

    <p>'Fuse link'</p> Signup and view all the answers

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