Coating Inspector Program – Level 1
Certification Exam
1.
The main purpose of a protective coating on steel is:
A. Make the steel shiny
B. Provide corrosion protection
C. Change the steel color only
D. Increase weight
✅ Answer: B
✅ Explanation: Coatings act as a barrier preventing
moisture, oxygen, and chemicals from reaching the steel
surface.
2.
Surface preparation is important because:
A. It makes steel smell clean
B. Coating cannot adhere to a dirty surface
C. It reduces gloss
D. It adds color
✅ Answer: B
✅ Explanation: Dirt, rust, and oil prevent coatings from
bonding properly, leading to early failure.
,3.
What does DFT stand for?
A. Dry Film Thickness
B. Dry Film Texture
C. Double Finish Technique
D. Dual Flash Test
✅ Answer: A
✅ Explanation: DFT is the final thickness after the coating
dries; it determines durability and protection.
4.
A Product Data Sheet (PDS) provides:
A. Mixing, thinning, and application instructions
B. Pay rates for workers
C. Worker names
D. Gloss charts only
✅ Answer: A
✅ Explanation: The PDS is the official manufacturer
document that describes how to properly use the coating.
5.
Holiday means:
A. The painter went home
B. A pinhole or uncoated area
C. A shiny spot
D. A thick DFT area
,✅ Answer: B
✅ Explanation: A “holiday” is a missed spot where steel is
exposed and can rust.
6.
Which tool measures DFT?
A. Adhesion tester
B. Magnetic/electronic thickness gauge
C. Micrometer for steel
D. Gloss meter
✅ Answer: B
✅ Explanation: Dry film thickness gauges are used on steel
and non-ferrous surfaces to verify film build.
7.
DFT that is too low causes:
A. Better protection
B. Faster curing
C. Inadequate corrosion resistance
D. Better gloss
✅ Answer: C
✅ Explanation: Too little coating means the steel is not
properly protected against corrosion.
, 8.
Wet Film Thickness (WFT) is measured:
A. After coating is fully cured
B. While coating is still wet
C. Before spraying
D. Only on concrete
✅ Answer: B
✅ Explanation: WFT helps predict the final dry thickness to
ensure correct film build.
9.
A common tool for WFT measurement is:
A. Psychrometer
B. WFT comb gauge
C. Ultrasonic holiday tester
D. UV lamp
✅ Answer: B
✅ Explanation: Comb gauges have steps that indicate how
thick the wet coating layer is.
10.
Abrasive blasting removes:
A. Rust, mill scale, old coatings
B. Only color
C. Only dust
D. Only oil residue
Certification Exam
1.
The main purpose of a protective coating on steel is:
A. Make the steel shiny
B. Provide corrosion protection
C. Change the steel color only
D. Increase weight
✅ Answer: B
✅ Explanation: Coatings act as a barrier preventing
moisture, oxygen, and chemicals from reaching the steel
surface.
2.
Surface preparation is important because:
A. It makes steel smell clean
B. Coating cannot adhere to a dirty surface
C. It reduces gloss
D. It adds color
✅ Answer: B
✅ Explanation: Dirt, rust, and oil prevent coatings from
bonding properly, leading to early failure.
,3.
What does DFT stand for?
A. Dry Film Thickness
B. Dry Film Texture
C. Double Finish Technique
D. Dual Flash Test
✅ Answer: A
✅ Explanation: DFT is the final thickness after the coating
dries; it determines durability and protection.
4.
A Product Data Sheet (PDS) provides:
A. Mixing, thinning, and application instructions
B. Pay rates for workers
C. Worker names
D. Gloss charts only
✅ Answer: A
✅ Explanation: The PDS is the official manufacturer
document that describes how to properly use the coating.
5.
Holiday means:
A. The painter went home
B. A pinhole or uncoated area
C. A shiny spot
D. A thick DFT area
,✅ Answer: B
✅ Explanation: A “holiday” is a missed spot where steel is
exposed and can rust.
6.
Which tool measures DFT?
A. Adhesion tester
B. Magnetic/electronic thickness gauge
C. Micrometer for steel
D. Gloss meter
✅ Answer: B
✅ Explanation: Dry film thickness gauges are used on steel
and non-ferrous surfaces to verify film build.
7.
DFT that is too low causes:
A. Better protection
B. Faster curing
C. Inadequate corrosion resistance
D. Better gloss
✅ Answer: C
✅ Explanation: Too little coating means the steel is not
properly protected against corrosion.
, 8.
Wet Film Thickness (WFT) is measured:
A. After coating is fully cured
B. While coating is still wet
C. Before spraying
D. Only on concrete
✅ Answer: B
✅ Explanation: WFT helps predict the final dry thickness to
ensure correct film build.
9.
A common tool for WFT measurement is:
A. Psychrometer
B. WFT comb gauge
C. Ultrasonic holiday tester
D. UV lamp
✅ Answer: B
✅ Explanation: Comb gauges have steps that indicate how
thick the wet coating layer is.
10.
Abrasive blasting removes:
A. Rust, mill scale, old coatings
B. Only color
C. Only dust
D. Only oil residue
