LATEST CORROSION TECHNICIAN EXAM
WITH GRADED ANSWERS 2026
________ is attack that proceeds more or
less uniformly over the exposed surface
with appreciable localization of attack -
answer-General corrosion
Two other names for general corrosion are
_______________ - answer-General attack
corrosion and uniform corrosion
What are the 9 forms of of corrosion? -
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 -
answer-1. Pitting
2. Crevice
3. Filiform
List the four types of environmental
cracking - answer-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 -
answer-1. Erosion-corrosion
2. Impingement
,3. Cavitation
What combination will result in more than
one form of corrosion within a system? -
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 _______ - answer-More
than one type of attack
For round bars or wires, corrosion
proceeds radially inward at essentially a
uniform rate around the entire
circumference. The result is
______________________ - answer-A bar or
wire of progressively smaller diameter
, Pipe and tubing that suffer from general
corrosion are - answer-Thinned from one
side, or the other, or both
General attack corrosion can be
recognized by - answer-A roughening of the
surface and by the presence of corrosion
products
Why may corrosion products not always be
present with general corrosion? - 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 - answer-
general attack corrosion
With general corrosion, the anodes and
cathodes are caused by... - answer-Minor
WITH GRADED ANSWERS 2026
________ is attack that proceeds more or
less uniformly over the exposed surface
with appreciable localization of attack -
answer-General corrosion
Two other names for general corrosion are
_______________ - answer-General attack
corrosion and uniform corrosion
What are the 9 forms of of corrosion? -
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 -
answer-1. Pitting
2. Crevice
3. Filiform
List the four types of environmental
cracking - answer-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 -
answer-1. Erosion-corrosion
2. Impingement
,3. Cavitation
What combination will result in more than
one form of corrosion within a system? -
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 _______ - answer-More
than one type of attack
For round bars or wires, corrosion
proceeds radially inward at essentially a
uniform rate around the entire
circumference. The result is
______________________ - answer-A bar or
wire of progressively smaller diameter
, Pipe and tubing that suffer from general
corrosion are - answer-Thinned from one
side, or the other, or both
General attack corrosion can be
recognized by - answer-A roughening of the
surface and by the presence of corrosion
products
Why may corrosion products not always be
present with general corrosion? - 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 - answer-
general attack corrosion
With general corrosion, the anodes and
cathodes are caused by... - answer-Minor
