Metal Cutting Processes Quiz
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Questions and Answers

Which material are pressure vessels usually not made of?

  • Cast iron
  • Sheet steel
  • Non-ferrous materials
  • Any of the above (correct)
  • Which of the following is usually considered a thin cylinder?

  • Boilers
  • Tanks
  • Steam and water pipes
  • All of the above (correct)
  • How do longitudinal stresses act in relation to the longitudinal axis of a shell?

  • Parallel
  • Perpendicular
  • Either of the above (correct)
  • None of the above
  • What is the radial stress in a spherical pressure vessel?

    <p>Half of hoop stress</p> Signup and view all the answers

    What are cylindrical vessels with wall thickness not small (t ≥d/20) classified as?

    <p>Thick cylinders</p> Signup and view all the answers

    What is true for shrink fits?

    <p>Used if parts should not be disassembled for life</p> Signup and view all the answers

    What does the term 'Gatorizing' refer to?

    <p>Producing flutes or corrugations</p> Signup and view all the answers

    When is the chemical reduction process commonly used?

    <p>All metals which are extracted as ore</p> Signup and view all the answers

    What type of chips does plain milling of mild steel plate produce?

    <p>Regular shaped discontinuous chips</p> Signup and view all the answers

    What is the purpose of the fullering process?

    <p>First step in impression die forging which reduces cross-section of work piece</p> Signup and view all the answers

    What do coining and embossing operations involve?

    <p>Forming and pressing operations, respectively</p> Signup and view all the answers

    In a single spindle automatic lathe, how many tools are mounted on the turret?

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

    What type of stress is induced in the wire material of a closely coiled helical spring when subjected to a couple about its axis?

    <p>A combination of torsional shear stress and bending</p> Signup and view all the answers

    Where is the hoop stress maximum in a thick cylinder pressurized from inside?

    <p>At the outer radius</p> Signup and view all the answers

    What is the purpose of an idler pulley?

    <p>To maintain belt tension</p> Signup and view all the answers

    How are rivets classified?

    <p>Thickness of plate</p> Signup and view all the answers

    What is the position of a shaft inside a bearing when it rotates in an anticlockwise direction at high speed?

    <p>Towards left side of the bearing not making metal to metal contact</p> Signup and view all the answers

    What happens at the critical speed of a shaft?

    <p>It becomes dynamically unstable with large vertical amplitudes</p> Signup and view all the answers

    What is the stress that can be used to design a shaft subjected to combined bending and torsion?

    <p>Any of the above</p> Signup and view all the answers

    In a belt drive, what phenomenon describes the loss of power due to slippage?

    <p>Loss of power</p> Signup and view all the answers

    What does the designation '6 x 7' of a wire rope indicate?

    <p>Number of wires in each strand</p> Signup and view all the answers

    In a V-belt drive system, what is the usual range for the groove angle of the pulley?

    <p>24° to 30°</p> Signup and view all the answers

    What does Euler's formula with 5 to 10% error in crippling load compare to experimental results in practice suggest?

    <p>The assumptions made in using the formula are not in practice</p> Signup and view all the answers

    What determines the velocity ratio of two pulleys connected by an open belt or crossed belt?

    <p>Directly proportional to the square of their diameters</p> Signup and view all the answers

    What should be done if a vessel is considered thin-walled?

    <p>Decrease number of divisions or increase pitch</p> Signup and view all the answers

    How is a commonly used 30 mm H-hole with tolerance grade IT9 expressed?

    <p>30HIT9</p> Signup and view all the answers

    Where are the sets of blocks that architectural firms and mechanical design companies use usually housed?

    <p>Block libraries</p> Signup and view all the answers

    When creating your own blocks, what layer should you avoid drawing any portion of the block in?

    <p>Center line layer</p> Signup and view all the answers

    What is lancing in the context of metalworking?

    <p>Cutting in a single line across the metal strip to allow bending in the operation</p> Signup and view all the answers

    In machining, which materials would tools with higher cutting angles typically be used for?

    <p>Aluminum and magnesium alloy</p> Signup and view all the answers

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