Test
Your Thread Knowledge – A Quiz
I
hope you’ve been paying attention!
The past few months we’ve been “back to the basics”
talking about threads and taps.
Now it’s time for the quiz.
Just
a short quiz – no sweat! Be
sure to check our web site for the answers.
1.
A thread has 3 important diameters, what are they?
2.
Which of these is the
most important diameter?
3.
Explain why you made that choice.
4.
What is the difference between the pitch and TPI?
5.
Taps are identified by the length of the tap chamfer.
Name the three types of taps.
6.
How do you calculate the length of the tap chamer?
_______________
7.
How do you determine the feed rate for a tap?
8.
What is special about a UNJ style thread?
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9.
Why would we select a high spiral, turbo tap?
10.
What is meant by a compound plunge angle?
11.
What is the angle of a National Pipe Taper thread in degrees,
minutes and seconds?
12.
What does the term Full Form Threading Insert mean?
13.
A tap can be described as a 3/8 – 16 GH3 tap. What exactly
does the GH3 mean?
14.
What is the difference between a 3/4 – 10 UNF 2A and a 3/4
– 10 UNF 2B thread?
15.
Are these two threads the same size?
16.
Explain your answer.
17.
ANPT stands for Aeronoutical National Pipe Tape.
How does this thread differ to a NPT type?
18.
What does the term NPTF stand for?
19.
Given a M12 x 1.75 - 6H thread, what is the pitch in inches?
20.
What does the term 6H mean?
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