Chapter 6 Knowledge Check

Chapter 6

Quiz yourself using the following chapter review questions to check how well you can recall the material.

Review Questions

1. Which of the following is a key responsibility of a fabricator?
   1. Just welding the parts together.
   2. Only cutting materials.
   3. Measuring, cutting, shaping, and assembling parts.
   4. Testing the materials for strength.
2. True or False: A tape measure usually features a scale in either imperial or metric units, but never both.
3. True or False: Micrometers are ideal for measuring thickness with accuracy down to thousandths of an inch.
4. Which of the following best describes “plumb” in the context of fabrication?
   1. A tool used for cutting.
   2. A measurement indicating that something is perfectly vertical.
   3. A type of welding joint.
   4. A level used for checking horizontal surfaces.
5. A .                         is a tool that holds parts in place so they can be tack welded together.
6. A  .                     is a type of hammer used on soft materials that will not mar or damage the surface of that material.
7. Which cutting tool creates the least amount of kerf?
   1. Chop saw
   2. Metal cutting shear
   3. Circular saw
   4. Angle grinder
8. What is the function of a “mag drill” or magnetic drill?
   1. To create precise welds.
   2. To drill holes with more precision on magnetic surfaces.
   3. To bend metal shapes.
   4. To polish metal surfaces.
9. True or False: Home shops often have a limited selection of tools due to space and power supply constraints.
10. True or False: It’s safe to use compressed oxygen instead of compressed air for cleaning parts.

Answer Key

1. Measuring, cutting, shaping, and assembling parts. Fabricators are typically responsible for many if not all the steps of producing an assembly for welding, from cutting out and shaping individual parts to tacking the parts together, and sometimes even welding the final assembly.
2. False. While most tape measures feature one scale of measurement, there are some tape measures that show both Imperial and Metric scales.
3. True. Micrometers are designed to accurately measure material thickness down to thousandths of an inch.
4. A measurement indicating that something is perfectly vertical. Just as the term “Level” means something is completely flat, “Plumb” means something is absolutely straight up and down, or vertical.
5. Fixture/Jig. Fabricators use fixtures or jigs to hold parts in place while they are tacked together.
6. Dead blow/dead blow hammer. Dead blow hammers are made of a material, such as plastic or rubber, that will not damage or mar the surface of the part they are striking or hitting.
7. Metal cutting shear. Like a pair of scissors, a metal shear does not produce a kerf at all.
8. To drill holes with more precision on magnetic surfaces. Mag drills attach themselves to the surface to allow precise placement of drilled holes.
9. True. Since many home shops are smaller and lack high power electricity used for large industrial machines, home shops tend to be much more limited in their tooling and capabilities.
10. False. Using compressed oxygen instead of compressed air is dangerous, as it may contribute to a fire or explosion.