ANSWERS FIRM A+
✔✔Magnetic Surface Contact Thermometer - ✔✔Device to measure substrate
temperature
✔✔Zinc (organic) - ✔✔Limited Cathodic Factor
✔✔Zinc (Inorganic) - ✔✔Provides Cathodic Protection
✔✔__is a chemical process applied during instrument manufacture that provides a
corrosion-resistant layer? - ✔✔Passivation
✔✔Factors that affect rate of corrosion - ✔✔-Oxygen
-Temperature
-Chemical Salts
-Humidity
-Pollutants and acid gases
✔✔Localized Corrosion - ✔✔This occurs at discrete sites on the metal surface.
✔✔Galvanic Series - ✔✔Magnesium and Magnesium alloys ( most active, Anodic) &
Platinum (most Passive, least active, cathodic)
✔✔Curing Mechanisms - ✔✔-Non convertible (Evaporation, Coalesence)
-Convertible (Polymerization)
✔✔Oxidation - ✔✔A chemical change in which a substance combines with oxygen, as
when iron oxidizes, forming rust
✔✔What are the most important characteristics of a good report? - ✔✔Objective,
Accurate, and Detailed.
✔✔What is the inspectors primary responsibility and what should the Inspector not do
as it pertains to the specification. - ✔✔The Inspector's primary responsibility as the
inspector is to "enforce" specification. The inspector is NOT to make changes to the
specification for any reason.
✔✔What type of information could you expect to find on a product Data Sheet? -
✔✔Surface preparation and application information such as recommended level of
surface cleanliness, recommended application methods and equipment such as tip
sizes.
, ✔✔What type of information would you find on a Safety Data Sheet? - ✔✔Health,
Safety, and Environmental. The PPE Required. Physical characteristics. Emergency
responder information.
✔✔Identify some of the defects that can be caused by incorrect application
temperatures - ✔✔Failure to cure, too rapid solvent evaporation, poor film formation
✔✔Name some of the effects wind may have on a coatings project - ✔✔blowing
abrasives, causing excessive drift or overspray, accelerating solvent evaporation,
contributing to the formation of dry spray
✔✔What are some of the common errors when using an electronic hygrometer -
✔✔Failure to acclimate the instrument to the environment with adequate time.
✔✔Explain the process for using the psychrometer - ✔✔-Make sure the wick is wet and
clean
-Continue to "sling" until 3 consecutive readings are achieved
✔✔List three desirable properties of a coating? - ✔✔-Chemical resistance
-water resistance
-ease of application
-adhesion to substrate
-cohesive strength
-flexibility and elongation
-impact resistance
-abrasion resistance
-Temperature Resistance
-Dielectric strength
✔✔Two broad classifications of a coating are: - ✔✔Organic/Inorganic, Convertible/non-
convertible, thermosetting/thermoplastic
✔✔What are the two (2) primary components of a liquid applied coating? - ✔✔-Pigment
-Vehicle (Resin or Binder and Solvent)
✔✔What are the three methods by which a coating provides corrosion control? -
✔✔Barrier
Inhibitive
Sacrificial
✔✔What are the three ways a coating can adhere to the surface? - ✔✔Chemical
Mechanical
Polar
A combination of all three