Exam (elaborations)
BASICS OF GMAW MIG WELDING EXAM QUESTIONS AND ANSWERS
- Course
- Institution
BASICS OF GMAW MIG WELDING EXAM QUESTIONS AND ANSWERS....
[Show more]
Content preview
BASICS OF GMAW MIG WELDINGEXAM QUESTIONS AND ANSWERS
The most typical use of GMAW is as a? - ANSWER semi-automated
procedure.
1. Easily automated or mechanized
2. Ideally adapted for robotic uses
What characteristics define the GMAW process? Three things are the hint.
ANSWER 1. A welding gun that continually feeds a solid wire electrode
2. An arc formed between the workpiece and the electrode
3. The gas flowing from the welding gun's nozzle provides all process shielding.
Which two kinds of shielding gases are there? ANSWER 1. Inert (helium,
argon)
2. Reactive (oxygen, carbon dioxide)
Why is carbon dioxide used so frequently? Three explanations, to give you an
idea 1. Reasonably priced 2. Immediately available
3. Increased capacity for penetration
What minimum percentage of argon is needed for spray transfer? ANSWER 80
What else do the shielding gas and flow rate significantly affect besides creating
a protected environment? Seven items, as a hint ANSWER 1. Arc properties
2. The metal transfer method
3. Profile of penetration and weld beads
4. Welding speed 5. Propensity for undercutting
6. Cleaning
7. Mechanical characteristics of weld metal
GMAW's AWS classification and ID system. - ANSWER ERXXS-X 1. "ER"
stands for both rod and electrode.
2. The next two figures represent the minimum tensile strength as-deposited in
thousands of pounds per square inch. 3. "S" denotes an electrode made of solid
wire.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller luzlinkuz. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
80796 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now