Aerospace Engineering: Introduction to Propulsion
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Aerospace Engineering: Introduction to Propulsion

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Questions and Answers

What is the net work done by the complete cycle in a reciprocating engine?

  • Wpower stroke - Wcompression stroke (correct)
  • Wpower stroke / Wcompression stroke
  • Wpower stroke * Wcompression stroke
  • Wpower stroke + Wcompression stroke

    • What is the power output of a reciprocating engine directly proportional to?

  • Piston diameter
  • Work done per unit time (correct)
  • Number of cylinders
  • Engine rpm

    • What is the formula for the power available (PA) for a propeller-driven airplane?

  • PA = η𝜂mech (rmp) NW (correct)
  • PA = η𝜂mech (n/2) NW
  • PA = η𝜂mech IP
  • PA = η𝜂mech NW

    • What is the relationship between the number of complete engine cycles and the engine rpm?

    <p>The number of complete engine cycles is equal to the engine rpm/2</p> Signup and view all the answers

    What is the formula for the volume swept by the piston?

    <p>(πb2/4)s</p> Signup and view all the answers

    What is the term for the length of the piston movement?

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

    What is the purpose of the compression stroke in a reciprocating engine?

    <p>To compress the air-fuel mixture</p> Signup and view all the answers

    What is the relationship between the engine rpm and the power available (PA) for a propeller-driven airplane?

    <p>The power available is directly proportional to the engine rpm</p> Signup and view all the answers

    What is the purpose of the power stroke in a reciprocating engine?

    <p>To generate power</p> Signup and view all the answers

    What is the formula for the shaft brake power (P) in a reciprocating engine?

    <p>P = ηmech IP</p> Signup and view all the answers

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