Corrosion Test Exam Actual Questions
and Answers 2026
penetrates the pipe quickly, but does not spread rapidly across the
surface -
correct answer ✅Pitting Corrosion
What type of corrosion can destroy natural and human-made
materials such as ductile iron, steel, copper, concrete, plastic fiber-
reinforce polymeric composites? -
correct answer ✅Microbiologically influenced corrosion
What is the primary means for monitoring the effectiveness of
cathodic protection systems? -
correct answer ✅Pipe-to-soil direct measurements
Occurs when two dissimilar metals are surrounded by the same
electrolyte and are electrically connected. -
correct answer ✅Galvanic Corrosion
One type of _____ inhibitor reduces corrosion by removing oxygen
from the environment around the metal. -
correct answer ✅Cathodic
, Corrosion Test Exam Actual Questions
and Answers 2026
Silicates and phosphates are commonly used as _____ inhibitors. -
correct answer ✅Precipitation
What are isolation devices used for? -
correct answer ✅To insulate two electrical potential metals that
are directly joined
Exposed ONSHORE pipelines other than a service line must be
inspected for atmospheric corrosion. -
correct answer ✅Once every three years
Disbondment refers to -
correct answer ✅A separation forming between the coating and
the bare steel pipe
What is the name for the piece of metal used to evaluate and
monitor the types and rates of internal corrosion in a pipeline
system? -
correct answer ✅Corrosion coupon
and Answers 2026
penetrates the pipe quickly, but does not spread rapidly across the
surface -
correct answer ✅Pitting Corrosion
What type of corrosion can destroy natural and human-made
materials such as ductile iron, steel, copper, concrete, plastic fiber-
reinforce polymeric composites? -
correct answer ✅Microbiologically influenced corrosion
What is the primary means for monitoring the effectiveness of
cathodic protection systems? -
correct answer ✅Pipe-to-soil direct measurements
Occurs when two dissimilar metals are surrounded by the same
electrolyte and are electrically connected. -
correct answer ✅Galvanic Corrosion
One type of _____ inhibitor reduces corrosion by removing oxygen
from the environment around the metal. -
correct answer ✅Cathodic
, Corrosion Test Exam Actual Questions
and Answers 2026
Silicates and phosphates are commonly used as _____ inhibitors. -
correct answer ✅Precipitation
What are isolation devices used for? -
correct answer ✅To insulate two electrical potential metals that
are directly joined
Exposed ONSHORE pipelines other than a service line must be
inspected for atmospheric corrosion. -
correct answer ✅Once every three years
Disbondment refers to -
correct answer ✅A separation forming between the coating and
the bare steel pipe
What is the name for the piece of metal used to evaluate and
monitor the types and rates of internal corrosion in a pipeline
system? -
correct answer ✅Corrosion coupon
