Internal Combustion Engine ABE11 Supercharger and Intercooler
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Questions and Answers

What is the ratio of brake horsepower to the power available at the fuel in an internal combustion engine?

  • Mechanical efficiency
  • Rate horsepower
  • Thermal efficiency (correct)
  • Specific fuel consumption

    • What is the minimum speed of an engine at no load called?

  • Optimum throttle opening
  • Cycle
  • Revolution
  • Idle speed (correct)

    • What is the amount of pressure generated during the power stroke of the engine called?

  • Cylinder head
  • Revolution
  • Cycle
  • Mean Effective Pressure (MEP) (correct)

    • Which term refers to the series of events occurring one after the other in a definite order and repeating the event after the last one has occurred?

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

    Where is the spark plug or fuel injector housed in an internal combustion engine?

    <p>Cylinder head</p> Signup and view all the answers

    What does the ratio of brake horsepower and indicated horsepower determine in an engine?

    <p>Mechanical efficiency</p> Signup and view all the answers

    What is the main difference between a supercharger and a turbocharger?

    <p>A supercharger increases air pressure through engine drive while a turbocharger increases air pressure through exhaust gases.</p> Signup and view all the answers

    What is the purpose of an intercooler in an engine?

    <p>To reduce the temperature of compressed gases before entering the engine.</p> Signup and view all the answers

    What does an engine specification sheet typically include?

    <p>Engine performance characteristics like power and fuel consumption.</p> Signup and view all the answers

    In terms of engine performance, what does a performance curve show?

    <p>Power, fuel consumption, and torque at various operating conditions.</p> Signup and view all the answers

    Which of the following parameters is not typically found in piston specifications?

    <p>Brake horsepower</p> Signup and view all the answers

    Why are superchargers more commonly used in gasoline engines than turbochargers?

    <p>Gasoline engines have lower exhaust gas energy compared to diesel engines.</p> Signup and view all the answers

    What is the purpose of a turbocharger in an engine?

    <p>Increase the amount of air injected into the engine</p> Signup and view all the answers

    How are running mates of pistons determined in an engine?

    <p>By splitting the firing order and pairing the numbers</p> Signup and view all the answers

    What is the function of an intercooler in an engine system?

    <p>Cool down compressed air from the turbocharger</p> Signup and view all the answers

    How does an internal combustion engine firing order affect engine performance?

    <p>It determines the engine's maximum power output</p> Signup and view all the answers

    What does a high-pressure electric pump do in a fuel injection system?

    <p>Mixes precisely measured fuel and air</p> Signup and view all the answers

    Why is piston displacement an important factor in determining an engine's specifications?

    <p>It affects the volume swept by all the pistons in the cylinders</p> Signup and view all the answers

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