API-571 Exam Question 16
Corrosion protection in the boiler is accomplished by laying down and continuously maintaining a layer of _____.
API-571 Exam Question 17
With sulfuric acid corrosion, mix points with _______ cause heat to be released and high
corrosion rates can occur where the acid becomes diluted.
corrosion rates can occur where the acid becomes diluted.
API-571 Exam Question 18
If wet electrodes or high moisture content flux weld electrodes are used to weld carbon steel, hydrogen can be charged into the steel resulting in _________.
API-571 Exam Question 19
In susceptible materials, the primary factor that affects sigma phase formation is the ________ at elevated temperatures.
API-571 Exam Question 20
SSC generally occurs below about ________.
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