Gas Turbine Operation and Performance
15 Questions
1 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

How does an increase in air temperature affect air density?

  • Increases air density
  • Has no effect on air density
  • Decreases air density (correct)
  • Increases atmospheric pressure
  • What effect does high barometric pressure have on air density?

  • Has no effect on air density
  • Increases air density (correct)
  • Decreases air density
  • Decreases atmospheric pressure
  • How do changes in atmospheric pressure and temperature affect gas turbine performance?

  • They vary the type of fuel used
  • They increase power output
  • They have no effect on gas turbine performance
  • They decrease power output (correct)
  • What parameters are considered during the startup of gas turbines?

    <p>Compressor inlet temperature, compressor discharge pressure, and engine speed</p> Signup and view all the answers

    What type of fuels are preferred for gas turbine fuel systems?

    <p>Clean gaseous fuels</p> Signup and view all the answers

    What is activated by temperature-sensitive relays in the event of a fire?

    <p>Pressurized halon or carbon dioxide nozzles</p> Signup and view all the answers

    What may be washed during a short shutdown maintenance procedure?

    <p>Inlet air filters</p> Signup and view all the answers

    What experiences a loss of 0.5% in power and efficiency for every 1000 hours of service?

    <p>Gas turbines</p> Signup and view all the answers

    What is involved in a major overhaul maintenance procedure for gas turbines?

    <p>Total strip down of the gas turbine</p> Signup and view all the answers

    What may cause increased roughness on the turbine blades according to the text?

    <p>Corrosion due to impurities present in the fuel</p> Signup and view all the answers

    What is the purpose of the fuel shutoff valve in a gas turbine system?

    <p>To control the fuel flow to the combustor</p> Signup and view all the answers

    In a typical automatic gas turbine startup, what happens at approximately 20% of the maximum engine RPM?

    <p>The fuel shutoff valve opens and ignition starts</p> Signup and view all the answers

    What is the function of the overspeed trip devices in gas turbines?

    <p>To cut off fuel if the turbine speed exceeds a pre-determined RPM</p> Signup and view all the answers

    What indicates an impending cooling system problem in a gas turbine?

    <p>A high stator temperature</p> Signup and view all the answers

    Why is an anti-icing system required in gas turbines operating in cold climates?

    <p>To introduce hot air into the compressor inlet section</p> Signup and view all the answers

    More Like This

    Gas Turbines
    6 questions

    Gas Turbines

    InspiringLion avatar
    InspiringLion
    Hydrogen Fuel in Gas Turbines
    10 questions

    Hydrogen Fuel in Gas Turbines

    DesirousStatueOfLiberty avatar
    DesirousStatueOfLiberty
    Flight Propulsion and Gas Turbines Overview
    10 questions

    Flight Propulsion and Gas Turbines Overview

    ProactiveMahoganyObsidian4619 avatar
    ProactiveMahoganyObsidian4619
    Use Quizgecko on...
    Browser
    Browser