Corrosion Technician Exam with correct answers
What are the 9 forms of of corrosion? - ** VERIFIED ANSWERS **✔✔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 - ** VERIFIED ANSWERS **✔✔1. Pitting
2. Crevice
3. Filiform
List the four types of environmental cracking - ** VERIFIED ANSWERS **✔✔1. Stress
corrosion cracking
2. Hydrogen-induced cracking and sulfide stress cracking
3. Liquid metal embrittlement
4. Corrosion fatigue
List the 3 types of flow-assisted corrosion - ** VERIFIED ANSWERS **✔✔1. Erosion-
corrosion
2. Impingement
3. Cavitation
, What combination will result in more than one form of corrosion within a system? - **
VERIFIED ANSWERS **✔✔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 _______ - ** VERIFIED ANSWERS **✔✔More than one type of attack
________ is attack that proceeds more or less uniformly over the exposed surface with
appreciable localization of attack - ** VERIFIED ANSWERS **✔✔General corrosion
Two other names for general corrosion are _______________ - ** VERIFIED ANSWERS
**✔✔General attack corrosion and uniform corrosion
For round bars or wires, corrosion proceeds radially inward at essentially a uniform rate
around the entire circumference. The result is ______________________ - ** VERIFIED
ANSWERS **✔✔A bar or wire of progressively smaller diameter
Pipe and tubing that suffer from general corrosion are - ** VERIFIED ANSWERS
**✔✔Thinned from one side, or the other, or both
General attack corrosion can be recognized by - ** VERIFIED ANSWERS **✔✔A
roughening of the surface and by the presence of corrosion products
Why may corrosion products not always be present with general corrosion? - ** VERIFIED
ANSWERS **✔✔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 - ** VERIFIED
ANSWERS **✔✔general attack corrosion
What are the 9 forms of of corrosion? - ** VERIFIED ANSWERS **✔✔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 - ** VERIFIED ANSWERS **✔✔1. Pitting
2. Crevice
3. Filiform
List the four types of environmental cracking - ** VERIFIED ANSWERS **✔✔1. Stress
corrosion cracking
2. Hydrogen-induced cracking and sulfide stress cracking
3. Liquid metal embrittlement
4. Corrosion fatigue
List the 3 types of flow-assisted corrosion - ** VERIFIED ANSWERS **✔✔1. Erosion-
corrosion
2. Impingement
3. Cavitation
, What combination will result in more than one form of corrosion within a system? - **
VERIFIED ANSWERS **✔✔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 _______ - ** VERIFIED ANSWERS **✔✔More than one type of attack
________ is attack that proceeds more or less uniformly over the exposed surface with
appreciable localization of attack - ** VERIFIED ANSWERS **✔✔General corrosion
Two other names for general corrosion are _______________ - ** VERIFIED ANSWERS
**✔✔General attack corrosion and uniform corrosion
For round bars or wires, corrosion proceeds radially inward at essentially a uniform rate
around the entire circumference. The result is ______________________ - ** VERIFIED
ANSWERS **✔✔A bar or wire of progressively smaller diameter
Pipe and tubing that suffer from general corrosion are - ** VERIFIED ANSWERS
**✔✔Thinned from one side, or the other, or both
General attack corrosion can be recognized by - ** VERIFIED ANSWERS **✔✔A
roughening of the surface and by the presence of corrosion products
Why may corrosion products not always be present with general corrosion? - ** VERIFIED
ANSWERS **✔✔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 - ** VERIFIED
ANSWERS **✔✔general attack corrosion
