Ch. 15: 1, 3, 5 7, 11 22, 24 27, 29, 30
Mechanical fasteners include: threaded fasteners, nails and staples, and rivets.
For an assembly that must be taken apart often, it would be wise to choose
threaded fasteners because they can easily be disasse
Chapter 10: 1-6, 9-20
1. Plasticity is the property that allows the cold deformation of metals.
2. Process annealing is required when considerable deformation is required in a metal.
3. Closer dimensional tolerances and better surface finishes are advanta
Chapter 7: 1-8
1. Tolerances are part or product specifications that define an acceptable range of dimension
sizes (size, form, position), because it is impossible to manufacture a part to exact size.
This is important to manufacturing because it defines
Chapter 9: 1-13, 15, 16
1. White-hot ingots are formed into slabs, blooms and billets by heating in a soaking pit and
they are then rolled into slabs, blooms, and billets.
2. Strand casting if the modern method of steel manufacturing that bypasses the ing
Chapter 8: 1-20
1. Sand castings are most likely to need a machining operation due to rough surface. Shaw
process casting and investment casting are the least likely processes to need subsequent
2. Patterns for sand casting are made of wood, al
Chapter 6: 3-13, 15, 16
3. The quenching medium for W1 is water and O1 is oil.
4. Ground and polished steel shafting is more expensive.
5. A cold rolled steel bar would be more expensive than hot rolled because it cold rolling requires
a significant amoun
Chapter 5: 1-15
1. Most plastics are derived from natural gas or petroleum.
2. Natural rubber is obtained from a thick, milky fluid (latex) that comes out of certain
plants when they are cut. The source of natural rubber comes from the Para rubber tree
Ch. 1 Questions 1 4, 6 13, 15, 18
1. Atoms are made out of protons, electrons and neutrons. A proton has a positive charge
and the neutron has no charge, these two make of the nucleolus. While the electrons are
on the outside and have a negative charge.