Exam (elaborations)
CWB WELDING INSPECTOR LEVEL 1 - CHAPTER 4 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
- Course
- Institution
CWB WELDING INSPECTOR LEVEL 1 - CHAPTER 4 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
[Show more]
Content preview
CWB WELDING INSPECTOR LEVEL 1 -CHAPTER 4 QUESTIONS AND ANSWERS
WITH SOLUTIONS 2024
Select the non-ferrous metal from the following. - ANSWER Copper
Why is it important to have procedures in place for the storage and handling of stainless steels? -
ANSWER Stainless steels are effected by contamination and procedures should be in place to ensure the
corrosion resistance is maintained.
Limestone is a fluxing agent that removes impurities to form a slag. - ANSWER True
Hot shortness is: - ANSWER cracking susceptibility caused by high sulphur content.
Stainless steels acquire their special stainless properties from the presence of chromium. What
percentage of chromium is required? - ANSWER More than 10%
P groupings in ASME Section IX are used to group steels for procedure qualification testing. - ANSWER
True
Which elements are added to molten steel specifically for deoxidation purposes? - ANSWER Silicon and
aluminum
Ferrite, austenite, and cementite are know as: - ANSWER phases.
In CSA standard G40.21M, what does the AT designation mean? - ANSWER Atmospheric corrosion-
resistance weldable notch tough steel
What phase distorts the BCC structure and results in a very hard needle-like structure? - ANSWER
Martensite
, When making steel, the first process is to convert iron ore into pig iron. Which furnace is used for this
process? - ANSWER Blast furnace
Why is it desirable to have a small grain structure in steels? - ANSWER Small grain size increases strength
and toughness
Metals have a crystalline structure in which the atoms are arranged in an irregular pattern. - ANSWER
They are arranged in a regular pattern
Steel with up to 0.8% carbon heated above 723 °C is: - ANSWER single phase austenite
Resistance to tempering is a term that describes a material's ability to retain: - ANSWER hardness at high
temperature.
The ability of a steel to form martensite at a given cooling rate is called: - ANSWER Hardenability
The grouping of steels referred to as carbon steels can obtain a wide range of properties by varying the: -
ANSWER Carbon Content
What is the difference between annealing and normalizing? - ANSWER Normalizing is a treatment that
involves heating into the fully austenitic region followed by air cooling. Annealing is a treatment which
involves heating into the fully austenitic region followed by furnace cooling.
What designates that AISI 4340 refers to Nickel-Chromium-Molybdenum steel? - ANSWER The first two
digits
When working with stainless steel, what does the term pickling refer to? - ANSWER Chemical treatment
to corrode the surface in a controlled fashion
Ferrite is the phase that at room temperature contains almost: - ANSWER No Carbon
Molten steel can either cast in individual ingots or continuous casting: - ANSWER True
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 Performance. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79271 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now