Screw Thread Terminology Quiz Questions
(299).jpg "Screw Thread Terminology Quiz Questions - Quiz")
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.
- 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
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