Screw Thread Terminology Quiz Questions

15 Questions | Total Attempts: 835

SettingsSettingsSettings
Please wait...
Screw Thread Terminology Quiz Questions

Otherwise known as a thread, a screw thread is a helical structure that is used to convert rotational and linear movement or force. Take up the challenge as see how good you are in regard to the terminology used.


Questions and Answers
  • 1. 
    The Threads on most standard threaded fasteners are made on cold-heading machines with
    • A. 

      Ordinary thread-cutting dies

    • B. 

      Round thread-rolling dies

    • C. 

      Flat thread-rolling dies

    • D. 

      Single-point threading tools

  • 2. 
    The leargest diameter of a straight external or internal screw thread is called the
    • A. 

      Outside diameter

    • B. 

      Major diameter

    • C. 

      Inside diameter

    • D. 

      Minor diameter

  • 3. 
    The smallest diameter of a straight external or internal screw thread is called the
    • A. 

      Outside diameter

    • B. 

      Major diameter

    • C. 

      Minor diameter

    • D. 

      Inside diameter

  • 4. 
    The diameter of a screw thread that determines the fit or clearance between mating threads is the 
    • A. 

      Major diameter

    • B. 

      Minor diameter

    • C. 

      Pitch diameter

    • D. 

      Actual outside diameter

  • 5. 
    The distance from a point on one thread to a corresponding point on the next thread is called the
    • A. 

      Lead

    • B. 

      Pitch

    • C. 

      Travel

    • D. 

      Gap

  • 6. 
    Two ways to measure the pitch of screw threads are
    • A. 

      With a plain micrometer and a screw pitch gage

    • B. 

      With dividers and a micrometer

    • C. 

      With a rule and a plain micrometer

    • D. 

      With a screw pitch gage and a rule

  • 7. 
    The thread form that was first adopted by most american industries was the
    • A. 

      American National

    • B. 

      Unified National

    • C. 

      Unified State Standard

    • D. 

      ISO Metric

  • 8. 
    The form of screw thread most widely used in the United States today is 
    • A. 

      American National

    • B. 

      Unified

    • C. 

      United States Standard

    • D. 

      ISO Metric

  • 9. 
    The Thread angle of the Unified Screw Thread is
    • A. 

      30 Degrees

    • B. 

      45 Degrees

    • C. 

      60 Degrees

    • D. 

      90 Degrees

  • 10. 
    The class of a Unified National Thread has to do with the 
    • A. 

      Pitch of the thread

    • B. 

      Fit of the thread

    • C. 

      Smoothnes of the finish on the threads

    • D. 

      Lead of the thread

  • 11. 
    A 29-degree thread used mostly on machine tools is the
    • A. 

      ISO Metric

    • B. 

      Unified National

    • C. 

      ACME

    • D. 

      Pipe thread

  • 12. 
    The Type of pipe thread used for general-purpose jobs that require a low-pressure seal is the American National Standard
    • A. 

      Taper Pipe Thread

    • B. 

      Straight Pipe Thread

    • C. 

      Railing Joint Taper Pipe Thread

    • D. 

      Dryseal Taper Pipe Thread

  • 13. 
    ISO Inch and ISO Metric threads are not interchangeable because of differences in their
    • A. 

      Thread angle

    • B. 

      Diameter

    • C. 

      Pitches

    • D. 

      B andC

  • 14. 
    Which ISO metric thread is commonly used on metric fasteners
    • A. 

      Coarse pitch

    • B. 

      Fine pitch

    • C. 

      Constant

    • D. 

      Variable pitch

  • 15. 
    How are ISO Metric threads designated on working drawings?
    • A. 

      With the letters ISO

    • B. 

      With the letter I

    • C. 

      With the letter M

    • D. 

      With the letter m