Aircraft Pressurization and Ventilation Systems Quiz
30 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is recommended to prevent connectors from unscrewing during flight?

  • Using a larger copper wire
  • Applying white petroleum jelly
  • Securing with duct tape
  • Using a positive locking device (correct)
  • Why are battery connections lubricated with white petroleum jelly?

  • To increase electrical conductivity
  • To prevent corrosion (correct)
  • To make it easier to remove the battery
  • To enhance the aircraft's aerodynamics
  • What is recommended for securing all types of battery securing mechanisms?

  • Applying lubricant
  • Using duct tape
  • Lockwiring them (correct)
  • Tightening with bare hands
  • What is the purpose of lockwiring connectors and batteries?

    <p>Enhancing security</p> Signup and view all the answers

    Why is it important to refer to the aircraft maintenance manual before installing a battery?

    <p>To ensure the correct battery type is used</p> Signup and view all the answers

    What should be done if a connector does not have an inbuilt locking device?

    <p>Lockwire it closed with 26 AWG copper wire</p> Signup and view all the answers

    What is the function of the charge relief valve in the hydraulic circuit?

    <p>Regulates the operating pressure of the charge oil system</p> Signup and view all the answers

    Where does the oil cooler obtain the air for cooling the CSD oil?

    <p>Engine fan air</p> Signup and view all the answers

    What happens if the pressure differential across the oil cooler reaches a pre-determined value?

    <p>Pressure-operated bypass valve opens</p> Signup and view all the answers

    Where is the scavenge filter located in the hydraulic system?

    <p>In the scavenge line between the scavenge pump and the reservoir</p> Signup and view all the answers

    What does the Differential Pressure Indicator in the scavenge filter housing warn of?

    <p>Impending blockage</p> Signup and view all the answers

    What action is required if either of the hydraulic filters becomes blocked?

    <p>Replace the IDG</p> Signup and view all the answers

    What is the purpose of the sump jar in Battery Ventilation System A?

    <p>To prevent damage to the aircraft skin</p> Signup and view all the answers

    Which ventilation system may or may not utilize a sump jar according to the text?

    <p>System C</p> Signup and view all the answers

    How are connections to light aircraft batteries usually designed?

    <p>Bolt-on connections</p> Signup and view all the answers

    What is the purpose of smearing lugs with an approved lubricant before connecting light aircraft batteries?

    <p>To prevent corrosion</p> Signup and view all the answers

    In a pressurized aircraft system, where does the air from the pressurization system pass through?

    <p>Non-return valve</p> Signup and view all the answers

    What feature do larger fully enclosed batteries usually have due to safety concerns?

    <p>Quick disconnect socket</p> Signup and view all the answers

    What kind of mechanism activates when the circuit breaker is tripped?

    <p>Trip mechanism</p> Signup and view all the answers

    Which component of the thermal circuit breaker uses a bimetallic strip to operate?

    <p>Thermal element</p> Signup and view all the answers

    What happens to the thermal element when the current exceeds the circuit breaker's rating?

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

    What is primarily responsible for opening the main switch contacts in a thermal circuit breaker during a short circuit?

    <p>Thermal element heat buildup</p> Signup and view all the answers

    What must be done to reset a circuit breaker after it has tripped due to excessive current?

    <p>Manually reset it</p> Signup and view all the answers

    Why do circuit breaker panels need clear labelling according to the text?

    <p>For easier identification of circuits</p> Signup and view all the answers

    What is the purpose of a rectifier circuit?

    <p>To convert alternating current into direct current</p> Signup and view all the answers

    In a transformer, what is a tap?

    <p>A wire connection made at the very ends of a winding</p> Signup and view all the answers

    What kind of current do diodes allow to flow in a rectifier circuit?

    <p>Direct current</p> Signup and view all the answers

    Transformer Rectifier Units (TRUs) are designed to operate on which type of input?

    <p>Three-phase AC</p> Signup and view all the answers

    What is the typical frequency of the input going into a Transformer Rectifier Unit (TRU)?

    <p>400 Hz</p> Signup and view all the answers

    If the input voltage to a rectifier circuit is 115/200-V AC, what would be the output after rectification?

    <p>~28-V DC</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Browser