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Home ‣ Technical Drawing ‣ Threads, Fasteners and Springs Comments
  • Question

  • Doubled threads are composed of two or more ridges running side by side.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 

    • Threads, Fasteners and Springs problems

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    • 1. Thread length, finish, and proportions are some of the standard characteristics of bolts and nuts.

    • Options
    • A. True
    • B. False
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    • 2. The root is the top surface joining the two sides of a thread.

    • Options
    • A. True
    • B. False
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    • 3. A Class 3 fit is exceptionally high quality and recommended only when high cost of precision is warranted.

    • Options
    • A. True
    • B. False
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    • 4. The axis of a screw is the longitudinal centerline through the screw.

    • Options
    • A. True
    • B. False
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    • 5. A screw thread is a ridge of uniform section in the form of a helix on the external or internal surface of a cylinder.

    • Options
    • A. True
    • B. False
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    • 6. The form of a thread is the cross section of the thread cut by a plane containing the axis.

    • Options
    • A. True
    • B. False
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    • 7. Pitch is equal to 12 divided by the number of threads per inch.

    • Options
    • A. True
    • B. False
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    • 8. Multiple threads are composed of one ridge, and the lead is equal to the pitch.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. Rivets are not considered permanent fasteners.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. An internal thread is a thread on the outside of a member.

    • Options
    • A. True
    • B. False
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