How is the process of steel corrosion ALWAYS described? electrochemical
Based on the galvanic series presented in the NACE CIP
Level 1 Manual, which three can be used ettectively as zinc, aluminum, magnesium
galvanic anodes for carbon steel?
A decrease in temperature will generally cause the corro-
decrease
sion rate to
The electrolyte is a medium which carries the following
Ionic
type of current?
Corrosion occurring uniformly across a surface is called
general corrosion
When a conflict occurs on a coatings project, as the in- actively listen and endeavor to understand the positions of
spector, the preferred first course of action is to others
A proper coating specification should contain information surface preparation standards, safety, and locations to be
regarding , , and used
Is it ever okay to accept a gift from a contractor? NO
What should you do if you find discrepancies between
the specification and the coating manufacturer's technical seek written clarification from the owner's representative
data sheet?
- results of inspection tests
What are the general components of inspection reports? - location(s) of work
- details of preparation and application
- contractor's performance
Inspection reports typically provide suflcient detail per- - inspector's performance
mitting the owner to evaluate - job progress
- work interruptions
As an inspector headed to the job site for the first time,
where would you always find instruction regarding appro- Safety Data Sheet (SDS), previously called MSDS
priate types of PPE?
Materials inventory report should contain which of the
following?
,- quantity of each component of each material onsite
- material batch numbers
- date of materials arrival at job site and storage informa-
tion
The primary function of the coating inspector is specification compliance
High humidity in the air during coating application can
solvent entrapment
cause
The temperature at which moisture condenses on a sur-
dew point
face is called
Where should the steel surface temperature reading be
at the actual work location
taken?
What type of water should be added to a sling psychrom-
distilled
eter?
Which type of coating is manufactured with the specific
components added to slow down the activity of the elec- inhibitive
trochemical cell?
Which coating component forms a stable film that retains
binder/resin
its characteristic properties?
A barrier coating interrupts the of the electro-
electrolyte
chemical cell.
1. Polar
List the three mechanisms by which coatings adhere to a
2. Chemical
substrate
3. Mechanical
What is the rule for coating work when it comes to Dew Steel Temperature must be 5 degrees less than the Dew
Point and Steel Temperature? Point
- solvency power
What characteristics of solvents influence coatings?
- volatility
, The contractor's sling psychrometer gives a ditterent
reading than your electric hygrometer. What would you verify calibration of both instruments
do first as an inspector?
- polyurethane
Which of the following coating are co-reacting?
- epoxy
Fusion Bond Epoxy (FBE) is most commonly used to coat
pipe
- single component polyurethane
Which coatings may require external moisture to cure?
- solvent borne inorganic zinc
Amine blush is likely to occur with which type of coating? epoxy
Which type of coating cures the fastest? Polyurea
When an inorganic Zinc Rich primer is applied too heavily
mud cracking
a common result is
- epoxy
Commonly used primers for steel structures are ? - inorganic zinc
- organic zinc
Coatings that cure by polymerization are convertible
Water-borne latex coatings cure by a process known as
coalescence
On a blast-cleaned surface, ultraviolet ligt can reveal
oil
You are an inspector on a project with a sprayed
polyurethane coating. The probable safety concern is isocyanates
The requirements of a coatings project are defined by
coating specification
which document?