Corrosion Technician Exam Actual
Questions and Answers 2026
What are the 9 forms of of corrosion? -
correct answer ✅1: General
2 Localized
3. Galvanic
4. Environmental
5. Flow-assisted
6. Entergranular
7. Dealloying
8. Fretting
9. High-temperature oxidation
List the 3 types of localized corrosion -
correct answer ✅1. Pitting
2. Crevice
3. Filiform
List the four types of environmental cracking -
correct answer ✅1. Stress corrosion cracking
2. Hydrogen-induced cracking and sulfide stress cracking
3. Liquid metal embrittlement
,Corrosion Technician Exam Actual
Questions and Answers 2026
4. Corrosion fatigue
List the 3 types of flow-assisted corrosion -
correct answer ✅1. Erosion-corrosion
2. Impingement
3. Cavitation
What combination will result in more than one form of corrosion
within a system? -
correct answer ✅Metals used in structures/equipment and a wide
range of environments
Even a single alloy exposed to different environments at different
points within a system can undergo _______ -
correct answer ✅More than one type of attack
________ is attack that proceeds more or less uniformly over the
exposed surface with appreciable localization of attack -
correct answer ✅General corrosion
Two other names for general corrosion are _______________ -
correct answer ✅General attack corrosion and uniform corrosion
, Corrosion Technician Exam Actual
Questions and Answers 2026
For round bars or wires, corrosion proceeds radially inward at
essentially a uniform rate around the entire circumference. The
result is ______________________ -
correct answer ✅A bar or wire of progressively smaller diameter
Pipe and tubing that suffer from general corrosion are -
correct answer ✅Thinned from one side, or the other, or both
General attack corrosion can be recognized by -
correct answer ✅A roughening of the surface and by the presence
of corrosion products
Why may corrosion products not always be present with general
corrosion? -
correct answer ✅They can be soluble or can be removed by wind,
rain, and other forces
An electrochemical process taking place on the surface of the
material -
correct answer ✅general attack corrosion
Questions and Answers 2026
What are the 9 forms of of corrosion? -
correct answer ✅1: General
2 Localized
3. Galvanic
4. Environmental
5. Flow-assisted
6. Entergranular
7. Dealloying
8. Fretting
9. High-temperature oxidation
List the 3 types of localized corrosion -
correct answer ✅1. Pitting
2. Crevice
3. Filiform
List the four types of environmental cracking -
correct answer ✅1. Stress corrosion cracking
2. Hydrogen-induced cracking and sulfide stress cracking
3. Liquid metal embrittlement
,Corrosion Technician Exam Actual
Questions and Answers 2026
4. Corrosion fatigue
List the 3 types of flow-assisted corrosion -
correct answer ✅1. Erosion-corrosion
2. Impingement
3. Cavitation
What combination will result in more than one form of corrosion
within a system? -
correct answer ✅Metals used in structures/equipment and a wide
range of environments
Even a single alloy exposed to different environments at different
points within a system can undergo _______ -
correct answer ✅More than one type of attack
________ is attack that proceeds more or less uniformly over the
exposed surface with appreciable localization of attack -
correct answer ✅General corrosion
Two other names for general corrosion are _______________ -
correct answer ✅General attack corrosion and uniform corrosion
, Corrosion Technician Exam Actual
Questions and Answers 2026
For round bars or wires, corrosion proceeds radially inward at
essentially a uniform rate around the entire circumference. The
result is ______________________ -
correct answer ✅A bar or wire of progressively smaller diameter
Pipe and tubing that suffer from general corrosion are -
correct answer ✅Thinned from one side, or the other, or both
General attack corrosion can be recognized by -
correct answer ✅A roughening of the surface and by the presence
of corrosion products
Why may corrosion products not always be present with general
corrosion? -
correct answer ✅They can be soluble or can be removed by wind,
rain, and other forces
An electrochemical process taking place on the surface of the
material -
correct answer ✅general attack corrosion
