Welding Chapter 1-16| Exam Questions with Verified Answers| State Tested 2025
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Course
Welding
Institution
Welding
Welding Chapter 1-16| Exam Questions
with Verified Answers| State Tested 2025
What does the term "heat-affected zone" (HAZ) refer to?
The area of the base material that is affected by the heat of the welding process.
What is the difference between “stringer beads” and “weave beads”? ...
Welding Chapter 1-16| Exam Questions
with Verified Answers| State Tested 2025
What does the term "heat-affected zone" (HAZ) refer to?
The area of the base material that is affected by the heat of the welding process.
What is the difference between “stringer beads” and “weave beads”?
Stringer beads are straight, narrow beads, while weave beads are wider with a back-and-forth
pattern.
Why should a welder use a backing bar in certain welding applications?
To prevent burn-through and improve the quality of the weld on thin materials.
What is the purpose of a joint design in welding?
To ensure proper alignment and allow for optimal penetration and fusion of the materials
being joined.
What is the primary function of a welding electrode?
To provide the filler material for the weld and establish the arc.
How does the heat generated by the welding arc affect the base metal?
It melts the metal, allowing the filler material to fuse with the base material.
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, What type of current is commonly used for stick welding?
Direct current (DC)
What is the purpose of a shielding gas in welding?
To protect the molten weld pool from atmospheric contamination.
How do you calculate the amperage required for a given welding process?
By considering the type of material, thickness, and the welding process used.
What is the difference between MIG welding and TIG welding?
MIG welding uses a continuously fed wire as both the electrode and filler, while TIG
welding uses a non-consumable electrode and a separate filler rod.
What causes arc blow in DC welding?
Magnetic fields interacting with the welding arc, causing it to deflect.
What is the ideal electrode angle in TIG welding?
Approximately 15° to 20° from vertical for a stable arc and consistent weld bead.
Why is it important to clean the base metal before welding?
To remove impurities, such as oil, rust, or dirt, that can contaminate the weld and cause
defects.
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