ESET 223 Winter 2022 Week # 1&2 Quiz: Power Plants
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Questions and Answers

What is the main equipment for the generation of electric power in a power plant?

  • Compressor
  • Turbine
  • Condenser
  • Generator (correct)

    • What is the rate of doing work equal to?

  • Force times velocity
  • Energy per unit of time (correct)
  • Power per unit of time
  • Force times distance

    • What units are power plants rated in?

  • Kilowatt-Hour
  • Watts
  • Joules per second
  • Megawatts (correct)

    • What is used to drive the generator in a power plant?

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

    What type of heat addition process occurs in the steam generator of a power plant?

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

    What is necessary as it is very difficult to pump wet vapor back to the boiler in a power plant?

    <p>Water cooled condenser</p> Signup and view all the answers

    What does the gas turbine obtain its power by utilizing?

    <p>Burnt gases and air at high temperature and pressure</p> Signup and view all the answers

    What is required to get a high pressure of working fluid in a gas turbine?

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

    What drives the compressor in a gas turbine?

    <p>Turbine shaft</p> Signup and view all the answers

    What form of energy is used to generate high pressure superheated steam in a generating plant?

    <p>Potential energy of various fuels</p> Signup and view all the answers

    What is the primary function of a power plant?

    <p>To convert mechanical power into electrical power</p> Signup and view all the answers

    What is the central component of nearly all power stations?

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

    Which type of power plant harnesses the energy from the movement of water?

    <p>Hydroelectric power plant</p> Signup and view all the answers

    What are the most commonly burned fuels in power stations for electricity generation?

    <p>Coal, oil, and natural gas</p> Signup and view all the answers

    Which term is used to refer to an assembly of systems or subsystems to generate electricity?

    <p>Power plant</p> Signup and view all the answers

    What does a generator in a power station convert?

    <p>Mechanical power into electrical power</p> Signup and view all the answers

    Which energy source is NOT commonly used in most power stations for electricity generation?

    <p>Wave energy</p> Signup and view all the answers

    What determines the energy source harnessed to turn the generator in a power station?

    <p>Cost of fuel and technology available</p> Signup and view all the answers

    In which type of power plant is a rotating machine used to convert mechanical power into electrical power?

    <p>Gas turbine power plant</p> Signup and view all the answers

    What is another term for a generating station?

    <p>Power station</p> Signup and view all the answers

    What is the main function of the weather hood in a gas turbine system?

    <p>To protect the filters from rain, snow, fog, and sun</p> Signup and view all the answers

    How does cooling the combustion air ingested by the turbine affect power output and efficiency?

    <p>Cooling the air increases both power output and efficiency</p> Signup and view all the answers

    What are the two types of cooling mentioned for gas turbine systems?

    <p>Evaporative cooling and chiller coils cooling</p> Signup and view all the answers

    What is the function of the manifold in a gas turbine system?

    <p>To converge air from different inlets and direct it toward the compressor</p> Signup and view all the answers

    Which type of bearing is used in a gas turbine to support the rotor weight and maintain the axial position?

    <p>Journal/sleeve Bearings</p> Signup and view all the answers

    What is the purpose of variable inlet guide vanes (VIGV) in a gas turbine system?

    <p>To vary the amount of air and the angle of attack with changes in speed of the compressor</p> Signup and view all the answers

    What is a gas turbine combined cycle?

    <p>A combination of an open cycle gas turbine and steam turbine</p> Signup and view all the answers

    What is a significant advantage of a gas turbine combined cycle?

    <p>Higher exhaust mass flows resulting in more steam generation for the steam turbine</p> Signup and view all the answers

    What does it mean to use a total energy approach in a system?

    <p>The complete utilization of all energy available to a system</p> Signup and view all the answers

    What happens when cleaned air is directed into evaporative cooling media in a gas turbine system?

    <p>It flows through wetted media, where it increases its moisture content by evaporation of water.</p> Signup and view all the answers

    What is the function of the steam generator in a pressurized water reactor?

    <p>To produce pressurized steam for the turbine</p> Signup and view all the answers

    Which type of power reactor is a CANDU reactor?

    <p>Pressurized Heavy Water Reactor (PHWR)</p> Signup and view all the answers

    What type of fuel does a CANDU reactor use?

    <p>Natural uranium</p> Signup and view all the answers

    In a nuclear power station, what happens to the secondary coolant after passing through the turbine?

    <p>It is cooled down and condensed in a condenser</p> Signup and view all the answers

    What is the primary function of the pressurizer in a pressurized water reactor?

    <p>To regulate the pressure of the primary coolant</p> Signup and view all the answers

    What is the moderator and coolant used in a CANDU reactor?

    <p>Heavy water (deuterium oxide)</p> Signup and view all the answers

    What is the main purpose of using heavy water in a CANDU reactor?

    <p>To moderate the speed of neutrons</p> Signup and view all the answers

    How is heat transferred from the primary coolant to the secondary coolant in a pressurized water reactor?

    <p>By using a heat exchanger</p> Signup and view all the answers

    What drives an electrical generator connected to the electric grid for transmission in a nuclear power station?

    <p>Pressurized steam from the steam generator</p> Signup and view all the answers

    What is the most efficient type of reactor in using uranium for electricity production?

    <p>CANDU Reactor</p> Signup and view all the answers

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