Mechanical Engineering Board Exam Review
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Questions and Answers

What is the formula for calculating the horsepower transmitted by a short shaft?

  • $P = \frac{D^2N}{30}$
  • $P = \frac{DN^2}{38}$
  • $P = \frac{D^3N}{38}$ (correct)
  • $P = \frac{D^2N}{38}$

    • What instrument measures the hardness of the work piece in terms of elasticity?

  • Durometer (correct)
  • Mohs's Scale
  • Scleroscope
  • Brinell Tester

    • What is the inside diameter of the cylindrical tank containing oxygen gas at 3000 psi?

  • 20 in
  • 15 in (correct)
  • 12 in
  • 18 in

    • What is the speed of the shaft if it transmits 250 horsepower with a 5 inches diameter?

    <p>96 rpm</p> Signup and view all the answers

    What is the pressure in psi if a 10 inches diameter cylindrical tank contains oxygen gas and transmits 150 horsepower at 180 rpm?

    <p>2880 psi</p> Signup and view all the answers

    What is the formula for calculating the horsepower transmitted by a short shaft?

    <p>$P = \frac{D^3N}{38}$</p> Signup and view all the answers

    What instrument measures the hardness of the work piece in terms of elasticity?

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

    What is the inside diameter of the cylindrical tank containing oxygen gas at 3000 psi?

    <p>15 inches</p> Signup and view all the answers

    What is the pressure in psi if a 10 inches diameter cylindrical tank contains oxygen gas and transmits 150 horsepower at 180 rpm?

    <p>2400 psi</p> Signup and view all the answers

    What is the speed of the shaft if it transmits 250 horsepower with a 5 inches diameter?

    <p>240 rpm</p> Signup and view all the answers

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