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As an inspector headed to the job site for the first time, where would you always
find instruction regarding appropriate types of PPE?
Safety Data Sheet (SDS), previously called MSDS
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 information
The primary function of the coating inspector is _____
specification compliance
High humidity in the air during coating application can cause _____
solvent entrapment
,The temperature at which moisture condenses on a surface is called _____
dew point
Where should the steel surface temperature reading be taken?
at the actual work location
What type of water should be added to a sling psychrometer?
distilled
Which type of coating is manufactured with the specific components added to
slow down the activity of the electrochemical cell?
inhibitive
Which coating component forms a stable film that retains its characteristic
properties?
binder/resin
A barrier coating interrupts the _of the electrochemical cell.
electrolyte
List the three mechanisms by which coatings adhere to a substrate
1. Polar
2. Chemical
3. Mechanical
,What is the rule for coating work when it comes to Dew Point and Steel
Temperature?
Steel Temperature must be 5 degrees less than the Dew Point
What characteristics of solvents influence coatings?
- solvency power
- volatility
The contractor's sling psychrometer gives a different reading than your electric
hygrometer. What would you do first as an inspector?
verify calibration of both instruments
Which of the following coating are co-reacting?
- polyurethane
- epoxy
Fusion Bond Epoxy (FBE) is most commonly used to coat ____
pipe
Which coatings may require external moisture to cure?
- single component polyurethane
- 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 a common result is
______
mud cracking
Commonly used primers for steel structures are ?
- epoxy
- 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