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Questions and Answers
What is the purpose of corrosion coupons?
What is the purpose of corrosion coupons?
- To evaluate the flow of material in pipes
- To provide instantaneous readings of system corrosiveness
- To estimate average corrosion rates (correct)
- To determine the composition of the piping system
Why are corrosion coupons immersed in condensate for a period of time?
Why are corrosion coupons immersed in condensate for a period of time?
- To measure the approximate corrosion rate (correct)
- To evaluate the flow of material in pipes
- To prevent galvanic corrosion
- To clean the coupons of system contaminants
Why should coupons that have been in place for only a month not be compared to coupons in place for three months?
Why should coupons that have been in place for only a month not be compared to coupons in place for three months?
- Because they are cleaned and weighed after 1 to 3 months
- Because they are made of various shapes
- Because they are affected by galvanic corrosion
- Because the most metal loss occurs in the first month due to passive layer formation (correct)
What can negatively affect the test results of corrosion coupons?
What can negatively affect the test results of corrosion coupons?
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What material is usually used to hold the corrosion coupons in place?
What material is usually used to hold the corrosion coupons in place?
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