NACE CP1 Chapters 5-10 Key Concepts And
Accurate Answers 2025\2026 A+ Grade
In complex structures, always select materials that are ____ each other in the
galvanic series that will exhibit ____ voltage differences
- accurate answers-near, little to no
What is the first line of defense in corrosion control programs?
- accurate answers-coating
If the structure is coated, it is necessary to protect only the metal exposed at
____
- accurate answers-holidays
Pipeline coatings designed for underground use do not have good resistance
to ____ light, so ____ is to be avoided
- accurate answers-UV, sunlight
Coatings formulated from coal tar pitch or natural asphalt, reinforced with
glass and a felt wrapper, used less today because of toxicity
- accurate answers-bituminous enamels
Coatings that consist of polyolefin or polyethylene extruded over butyl or
asphalt mastic adhesive, high impact resistance and resist holiday
development
- accurate answers-extruded polyolefin and polyethylene
Coatings that consist of a primer, corrosion sealant inner layer, mechanical
protective outer layer backing (usually polyethylene or polybutylene), prone
to disbonding if not properly tensioned
- accurate answers-tape coatings
Coatings that consist of powdered resin electrostatically sprayed onto heated
pipe, moisture absorption can be a problem
- accurate answers-fusion boned epoxy (FBE)
Coatings that consist of liquid resin (epoxy) and a curing agent, resistant to
impact and abrasion damage
- accurate answers-two-component liquid resin coatings (two part epoxy)
, What is essential for the coating to bond properly to the metal?
- accurate answers-proper surface preparation and application (hot or cold)
What environmental conditions must be checked during initial inspection
before coating application?
- accurate answers-temperature, humidity, dew point
What should be checked for visually during coating application?
- accurate answers-disbonding, damage, checking, cracking, chalking, etc.
(check if reconditioning is required)
Why are inhibitors added to liquids?
- accurate answers-to change the characteristics of the liquid or form
protective films on the metal surface
How does sunlight exposure affect a coating?
- accurate answers-changes porosity, brittle (changes properties)
What are the following materials used for: heat shrink sleeves, hot and cold
applied tapes, two-component liquid resins, coal tar mastics, fusion bonded
epoxy?
- accurate answers-girth weld coatings
If you have to use dissimilar metals, what must you do?
- accurate answers-electrically isolate them
It's better to install more test stations rather than fewer, but where should
test stations definitely be installed?
- accurate answers-buried isolating fittings, crossings, electrical bonding of
joints
What are potential measurement test stations used to monitor? (3)
- accurate answers-effectiveness of CP, stray current effects, locate areas of
active corrosion (no. 12 AWG insulated wires, thermite-welded to pipe)
What are IR drop (current span) test station used for?
- accurate answers-to measure magnitude and direction of current flow on
Accurate Answers 2025\2026 A+ Grade
In complex structures, always select materials that are ____ each other in the
galvanic series that will exhibit ____ voltage differences
- accurate answers-near, little to no
What is the first line of defense in corrosion control programs?
- accurate answers-coating
If the structure is coated, it is necessary to protect only the metal exposed at
____
- accurate answers-holidays
Pipeline coatings designed for underground use do not have good resistance
to ____ light, so ____ is to be avoided
- accurate answers-UV, sunlight
Coatings formulated from coal tar pitch or natural asphalt, reinforced with
glass and a felt wrapper, used less today because of toxicity
- accurate answers-bituminous enamels
Coatings that consist of polyolefin or polyethylene extruded over butyl or
asphalt mastic adhesive, high impact resistance and resist holiday
development
- accurate answers-extruded polyolefin and polyethylene
Coatings that consist of a primer, corrosion sealant inner layer, mechanical
protective outer layer backing (usually polyethylene or polybutylene), prone
to disbonding if not properly tensioned
- accurate answers-tape coatings
Coatings that consist of powdered resin electrostatically sprayed onto heated
pipe, moisture absorption can be a problem
- accurate answers-fusion boned epoxy (FBE)
Coatings that consist of liquid resin (epoxy) and a curing agent, resistant to
impact and abrasion damage
- accurate answers-two-component liquid resin coatings (two part epoxy)
, What is essential for the coating to bond properly to the metal?
- accurate answers-proper surface preparation and application (hot or cold)
What environmental conditions must be checked during initial inspection
before coating application?
- accurate answers-temperature, humidity, dew point
What should be checked for visually during coating application?
- accurate answers-disbonding, damage, checking, cracking, chalking, etc.
(check if reconditioning is required)
Why are inhibitors added to liquids?
- accurate answers-to change the characteristics of the liquid or form
protective films on the metal surface
How does sunlight exposure affect a coating?
- accurate answers-changes porosity, brittle (changes properties)
What are the following materials used for: heat shrink sleeves, hot and cold
applied tapes, two-component liquid resins, coal tar mastics, fusion bonded
epoxy?
- accurate answers-girth weld coatings
If you have to use dissimilar metals, what must you do?
- accurate answers-electrically isolate them
It's better to install more test stations rather than fewer, but where should
test stations definitely be installed?
- accurate answers-buried isolating fittings, crossings, electrical bonding of
joints
What are potential measurement test stations used to monitor? (3)
- accurate answers-effectiveness of CP, stray current effects, locate areas of
active corrosion (no. 12 AWG insulated wires, thermite-welded to pipe)
What are IR drop (current span) test station used for?
- accurate answers-to measure magnitude and direction of current flow on
