Protective Coating Technician Certification
Exam
1. The primary purpose of a protective coating on steel is to:
A. Make the surface look shiny
B. Prevent corrosion by acting as a barrier
C. Improve welding
D. Increase thickness of steel
Answer: B
Explanation: Coatings isolate steel from moisture, oxygen,
and chemicals, preventing corrosion.
2. Which standard commonly specifies surface cleanliness for
abrasive blasting?
A. SSPC / NACE / ISO 8501
B. API 1104
C. ASTM A370
D. AWS D1.1
Answer: A
Explanation: SSPC/NACE and ISO 8501 define blast-cleaning
surface conditions.
3. The main cause of coating failure is:
A. Poor surface preparation
B. Strong adhesion
,C. Correct mixing
D. Appropriate curing
Answer: A
4. “Dew point” is important because:
A. Condensation causes coating adhesion failure
B. It increases blast quality
C. It stops rust immediately
D. It cures coatings faster
Answer: A
Explanation: Steel at or below dew point forms moisture,
leading to flash rust and poor adhesion.
5. The term “DFT” refers to:
A. Dry Film Thickness
B. Deep Film Tape
C. Dust-Free Time
D. Disbonded Fastener Test
Answer: A
6. Pinholes in coatings are caused by:
A. Air entrapment or solvent escape
B. Correct mixing
C. Smooth surfaces
D. Perfect humidity
Answer: A
,7. The anchor profile after blasting refers to:
A. Surface roughness created by abrasive
B. Coating color
C. Pipe diameter
D. Volatile content
Answer: A
8. Common tool to measure DFT:
A. Magnetic dry-film thickness gauge
B. Vernier caliper
C. Torque wrench
D. Holiday detector
Answer: A
9. A “holiday” is:
A. A discontinuity in a coating film
B. A break from work
C. A measuring tape
D. A coating color
Answer: A
10. Excessive thinning of coating causes:
A. Reduced film thickness and lower protection
B. Higher abrasion resistance
, C. Better adhesion
D. Faster curing
Answer: A
11. Two-component coatings must be:
A. Mixed in correct ratio and pot life
B. Sprayed without mixing
C. Applied dry
D. Used only on concrete
Answer: A
12. Surface preparation grade Sa 2½ refers to:
A. Very thorough blast cleaning
B. Hand cleaning only
C. Galvanizing
D. Chemical stripping
Answer: A
13. “Pot life” means:
A. Time mixed material remains usable
B. Total tank volume
C. Cure time
D. Shelf storage life
Answer: A
Exam
1. The primary purpose of a protective coating on steel is to:
A. Make the surface look shiny
B. Prevent corrosion by acting as a barrier
C. Improve welding
D. Increase thickness of steel
Answer: B
Explanation: Coatings isolate steel from moisture, oxygen,
and chemicals, preventing corrosion.
2. Which standard commonly specifies surface cleanliness for
abrasive blasting?
A. SSPC / NACE / ISO 8501
B. API 1104
C. ASTM A370
D. AWS D1.1
Answer: A
Explanation: SSPC/NACE and ISO 8501 define blast-cleaning
surface conditions.
3. The main cause of coating failure is:
A. Poor surface preparation
B. Strong adhesion
,C. Correct mixing
D. Appropriate curing
Answer: A
4. “Dew point” is important because:
A. Condensation causes coating adhesion failure
B. It increases blast quality
C. It stops rust immediately
D. It cures coatings faster
Answer: A
Explanation: Steel at or below dew point forms moisture,
leading to flash rust and poor adhesion.
5. The term “DFT” refers to:
A. Dry Film Thickness
B. Deep Film Tape
C. Dust-Free Time
D. Disbonded Fastener Test
Answer: A
6. Pinholes in coatings are caused by:
A. Air entrapment or solvent escape
B. Correct mixing
C. Smooth surfaces
D. Perfect humidity
Answer: A
,7. The anchor profile after blasting refers to:
A. Surface roughness created by abrasive
B. Coating color
C. Pipe diameter
D. Volatile content
Answer: A
8. Common tool to measure DFT:
A. Magnetic dry-film thickness gauge
B. Vernier caliper
C. Torque wrench
D. Holiday detector
Answer: A
9. A “holiday” is:
A. A discontinuity in a coating film
B. A break from work
C. A measuring tape
D. A coating color
Answer: A
10. Excessive thinning of coating causes:
A. Reduced film thickness and lower protection
B. Higher abrasion resistance
, C. Better adhesion
D. Faster curing
Answer: A
11. Two-component coatings must be:
A. Mixed in correct ratio and pot life
B. Sprayed without mixing
C. Applied dry
D. Used only on concrete
Answer: A
12. Surface preparation grade Sa 2½ refers to:
A. Very thorough blast cleaning
B. Hand cleaning only
C. Galvanizing
D. Chemical stripping
Answer: A
13. “Pot life” means:
A. Time mixed material remains usable
B. Total tank volume
C. Cure time
D. Shelf storage life
Answer: A
