ACTUAL QUESTIONS WITH WELL ELABORATED ANSWERS (100%
CORRECT VERIFIED SOLUTIONS) A NEW UPDATED VERSION
|GUARANTEED A+ |APPROVED NACE CP2 EXAM
SECTION 1: Surface Preparation
Which standard is used for evaluating the degree of surface cleanliness
for steel surfaces after abrasive blasting?
A. SSPC-SP 1
B. ISO 8501-1
C. ASTM D4417
D. NACE SP0178
Answer: B. ISO 8501-1
What surface preparation method removes mill scale, rust, and old
coatings by high-velocity abrasive impact?
A. Solvent cleaning
B. Power tool cleaning
C. Abrasive blasting
D. Water jetting
Answer: C. Abrasive blasting
SSPC-SP 10 corresponds to which surface preparation level?
A. Near-white metal blast cleaning
,B. Commercial blast cleaning
C. White metal blast cleaning
D. Brush-off blast cleaning
Answer: A. Near-white metal blast cleaning
The primary purpose of surface profile is to:
A. Improve coating color
B. Increase adhesion of the coating
C. Reduce corrosion rate
D. Lower coating cost
Answer: B. Increase adhesion of the coating
Which instrument is commonly used to measure surface profile?
A. Wet film gauge
B. Dry film thickness gauge
C. Replica tape
D. Holiday detector
Answer: C. Replica tape
SECTION 2: Environmental Conditions
Why must surface temperature be a minimum of 5°F (3°C) above the
dew point before coating application?
,A. To prevent solvent entrapment
B. To avoid flash rusting
C. To prevent moisture condensation
D. To improve curing speed
Answer: C. To prevent moisture condensation
Which environmental condition most directly affects coating cure time?
A. Wind speed
B. Humidity
C. Ambient temperature
D. Surface profile
Answer: C. Ambient temperature
A sling psychomotor is used to measure:
A. Dew point and humidity
B. Surface temperature
C. Coating thickness
D. Surface contamination
Answer: A. Dew point and humidity
Excessive relative humidity during coating application can result in:
A. Improved adhesion
B. Blistering and poor cure
, C. Increased film thickness
D. Faster drying
Answer: B. Blistering and poor cure
SECTION 3: Coating Materials & Application
Which coating type provides the best long-term corrosion protection in
aggressive environments?
A. Alkyd
B. Acrylic
C. Epoxy
D. Vinyl
Answer: C. Epoxy
What is the primary function of a zinc-rich primer?
A. Decorative finish
B. Barrier protection
C. Catholic protection
D. UV resistance
Answer: C. Catholic protection
Pot life refers to:
A. Shelf life of the coating