Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
18 Cards in this Set
- Front
- Back
|
What 4 things are bolts categorized by? |
Diameter, length, thread, and strengrh |
|
|
What is the most common type of fastener? |
A bolt |
|
|
True or false? Bolts are identified by the size of the head |
False |
|
|
How do you write a bolt size out? |
Shank x bolt length x thread pitch |
|
|
What type of threads are used when greater clamping force is required? |
Fine threads |
|
|
What type of threads are used for general purpose work, or where rapid assembly is required? |
Coarse threads |
|
|
What is thread class or fit? |
How loose or tight a bolt will fit |
|
|
What type of threads are 1A, 2A, 3A? |
External threads |
|
|
What is class 2 threads? |
Medium looseness, most common |
|
|
What does 10.9 mean on a bolt? |
10 is tensile strength (when the bolt breaks) 9 is the yield strength (where is cant stretch back) |
|
|
How can you counteract welding by dissimilar metals? |
Coat threads of fastener in plastic material |
|
|
What is thread sealer used for? |
Where bolts are tightened into oil or coolant passages |
|
|
What is the equation for torque? |
Torque = Force x leverage |
|
|
What are the 4 main types of tubing? |
Copper, plastic, steel, aluminum |
|
|
Where would copper tubing be used? For what purpose? |
Low pressure applications such as lubrication lines or coolant lines |
|
|
Copper tube is suspectible to |
"Work hardening" becoming brittle with use |
|
|
What is steel tubing susceptible to? |
Fatigue due to corrosion |
|
|
Tightening only one bolt at a time can cause (2) |
Point loading and load scatter |
