Chapter 15 Knowledge Check

Chapter 15

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

Review Questions

1. What is a root opening?
   1. The opening of the joint at the toes of the weld.
   2. The spacing of two members at a joint at the root.
   3. The diameter of the opening of porosity.
   4. The tool used to open a tin of welding rods.
2. A .            joint is created when two workpieces are butted against each other along their thickness.
3. A .            joint is created when the edge of one workpiece abuts the surface of the other, creating a T shape.
4. True or False.: A closed root is a root opening of 0 inches or 0 mm.
5. Flat, Horizontal, Vertical, and Overhead refer to?
   1. Stretch positions used to loosen up before working.
   2. Grinding/Cleaning positions.
   3. Welding test positions.
   4. Material storage positions.
6. What is the bevel angle?
   1. The opening of the joint at the toes of the weld.
   2. The spacing of two members at a joint at the root.
   3. The diameter of the opening of porosity.
   4. The tool used to open a tin of welding rods.
7. Which is NOT a part of a Groove Weld?
   1. Root face.
   2. Weld chin.
   3. Weld toe.
   4. Weld face.
8. True or False: A closed root is a root opening of 0 inches or 0 mm.
9. .                  is the term used to designate the metal which is to be welded together.
10. Which type of weld contour reduces the size of the weld?
    1. Concave.
    2. Flat.
    3. Convex.
    4. None, the fillet weld leg size determines the size of the weld.

Answer Key

1. The spacing of two members at a joint at the root.  The root opening is the gap between the metal plates that form a butt joint.
2. Butt. Butt joints are created by joining two pieces of metal together along the surface of their thickness.
3. T. T joints are created by joining two pieces of metal together perpendicularly to form a T shape.
4. True. A closed root is a groove weld that has no gap between the workpieces.
5. Welding test positions. Flat, Horizontal, Vertical and Overhead are four of the welding test positions.
6. The spacing of two members at a joint at the root. The root opening is the gap between the metal plates that form a butt joint.
7. Weld chin. The weld chin is not a part of a groove weld.
8. True. A closed root is a groove weld that has no gap between the workpieces.
9. Base metal. Base metal, sometimes called parent material, is the metal used to create the weld joint and is welded together.
10. Concave. A concave weld contour reduces the size of the weld due to less material.  This is because it creates a narrow point of the weld.