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100+ Free AMPP CAS-1 Practice Questions

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What is the typical corrective action if the maximum recoat window has been exceeded for an epoxy primer before the topcoat is applied?

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Key Facts: AMPP CAS-1 Exam

1 hour

Written Exam Time

AMPP CAS Level 1 page

70%

Passing Score

AMPP CAS Level 1 page

EN + ES

Languages Offered

AMPP CAS Level 1 page

None

Required Prerequisites

AMPP CAS Level 1 page

4 years

Certification Validity

AMPP renewal policy

50 µg/m³

OSHA Silica PEL

29 CFR 1910.1053

The AMPP CAS Level 1 is the entry-level industrial coating applicator credential from AMPP. It is a 1-hour in-person written multiple-choice exam (offered in English and Spanish) with a 70% passing score and no hands-on practical at Level 1. Content is built on SSPC-ACS 1 / NACE No. 13 and covers industrial coatings safety (OSHA 29 CFR 1910.1053 silica, respiratory protection, fall protection), SSPC-SP surface preparation standards (SP 1, 2, 3, 6, 10, 11), abrasive blasting basics, spray equipment, environmental conditions, DFT/WFT, and basic application defects.

Sample AMPP CAS-1 Practice Questions

Try these sample questions to test your AMPP CAS-1 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which SSPC surface preparation standard covers solvent cleaning to remove oil, grease, and soluble contaminants?
A.SSPC-SP 1
B.SSPC-SP 2
C.SSPC-SP 3
D.SSPC-SP 6
Explanation: SSPC-SP 1 is Solvent Cleaning. It addresses removal of oil, grease, dirt, salts, drawing compounds, and other soluble contaminants and is almost always performed before any mechanical surface preparation so contaminants are not driven into the substrate by blasting or power tooling.
2Which SSPC standard describes Hand Tool Cleaning using wire brushes, scrapers, and sandpaper?
A.SSPC-SP 1
B.SSPC-SP 2
C.SSPC-SP 3
D.SSPC-SP 11
Explanation: SSPC-SP 2 is Hand Tool Cleaning. It removes loose mill scale, loose rust, and loose coating using non-powered tools such as wire brushes, scrapers, chipping hammers, and sandpaper. Tightly adhered mill scale and rust may remain.
3Which SSPC standard covers Power Tool Cleaning that leaves tightly adhered mill scale and rust?
A.SSPC-SP 2
B.SSPC-SP 3
C.SSPC-SP 11
D.SSPC-SP 15
Explanation: SSPC-SP 3 is Power Tool Cleaning. It removes loose mill scale, loose rust, and loose coating using powered tools (rotary wire brushes, sanders, needle guns, grinders). Tightly adhered material is allowed to remain. SP 11 and SP 15 go further, exposing bare metal.
4SSPC-SP 6 / NACE No. 3 is the designation for which level of abrasive blast cleaning?
A.White Metal Blast
B.Near-White Blast
C.Commercial Blast
D.Brush-Off Blast
Explanation: SSPC-SP 6 / NACE No. 3 is Commercial Blast Cleaning. Random staining is allowed on no more than 33% of each unit area of the surface. It is the most commonly specified blast level for atmospheric service coatings.
5A specification calls for SSPC-SP 10 / NACE No. 2. What maximum percentage of each unit area may exhibit random staining?
A.0%
B.5%
C.33%
D.No limit
Explanation: SSPC-SP 10 / NACE No. 2 is Near-White Blast Cleaning. At least 95% of each unit area must be free of all visible mill scale, rust, coating, oxides, and foreign matter, meaning random staining is allowed on no more than 5% of each unit area.
6Which SSPC standard requires Power Tool Cleaning to Bare Metal and the production of a surface profile?
A.SSPC-SP 3
B.SSPC-SP 11
C.SSPC-SP 7
D.SSPC-SP 2
Explanation: SSPC-SP 11 is Power Tool Cleaning to Bare Metal. Unlike SP 3, SP 11 requires the substrate to be bare metal and requires the production of a minimum 1 mil (25 µm) surface profile, making it suitable as a spot-repair alternative to abrasive blasting.
7What is the OSHA Permissible Exposure Limit (PEL) for respirable crystalline silica under 29 CFR 1910.1053?
A.25 µg/m³ as an 8-hour TWA
B.50 µg/m³ as an 8-hour TWA
C.100 µg/m³ as an 8-hour TWA
D.250 µg/m³ as an 8-hour TWA
Explanation: OSHA 29 CFR 1910.1053 sets the PEL for respirable crystalline silica at 50 µg/m³ as an 8-hour time-weighted average. The action level, which triggers exposure assessment and medical surveillance, is 25 µg/m³ (8-hour TWA).
8What is the OSHA action level for respirable crystalline silica under 29 CFR 1910.1053?
A.10 µg/m³
B.25 µg/m³
C.50 µg/m³
D.100 µg/m³
Explanation: The action level under 29 CFR 1910.1053 is 25 µg/m³ as an 8-hour TWA. Exposure at or above the action level triggers exposure assessment and, for workers exposed 30+ days per year, medical surveillance. The PEL is 50 µg/m³.
9How many degrees Fahrenheit above the dew point must the steel surface temperature typically be before applying most industrial coatings?
A.1 °F
B.3 °F
C.5 °F
D.10 °F
Explanation: The widely used SSPC/AMPP best-practice rule is that the steel surface temperature must be at least 5 °F (approximately 3 °C) above the dew point during coating application. This prevents condensation of moisture on the substrate, which can cause flash rusting and adhesion failure.
10What is the primary reason for the rule that surface temperature must exceed the dew point during coating application?
A.To accelerate solvent flash-off
B.To prevent condensation that causes flash rust and adhesion failure
C.To increase viscosity of the coating
D.To meet OSHA respiratory requirements
Explanation: When the steel surface temperature falls to or below the dew point, water vapor condenses on the steel. This invisible moisture causes flash rust on freshly blasted steel and prevents proper adhesion of the coating film. Holding the steel at least 5 °F above the dew point keeps the substrate dry.

About the AMPP CAS-1 Exam

The AMPP Coating Application Specialist (CAS) Level 1 is the entry-level industrial-applicator credential built on SSPC-ACS 1 / NACE No. 13 (Industrial Coating and Lining Application Specialist Qualification and Certification). It validates foundational knowledge for crew members preparing surfaces and applying protective coatings on steel and concrete in industrial and marine settings. The 1-hour in-person written exam is offered in English and Spanish, is graded against a 70% passing score, and is the prerequisite step toward CAS Level 2. There are no formal prerequisites for the Level 1 exam, although AMPP recommends the 1-day CAS Prep course. The credential is valid for 4 years.

Assessment

1-hour in-person written multiple-choice exam offered in English and Spanish at AMPP-authorized test sites. No hands-on practical at Level 1.

Time Limit

1 hour

Passing Score

70%

Exam Fee

Via AMPP Store (AMPP)

AMPP CAS-1 Exam Content Outline

16%

Industrial Coatings Safety & PPE

OSHA 29 CFR 1910.1053 silica (PEL 50 µg/m³, action level 25 µg/m³), respirator selection by Assigned Protection Factor, isocyanate exposure controls, solvent vapor and LEL monitoring, fall protection (29 CFR 1926.501), scaffolding (1926.451), and confined space entry

20%

SSPC Surface Preparation Standards

SSPC-SP 1 solvent cleaning, SP 2 hand tool, SP 3 power tool, SP 6/NACE No. 3 commercial blast, SP 10/NACE No. 2 near-white metal blast, SP 11 power tool to bare metal, plus SP 7/NACE No. 4 brush-off blast basics

8%

Visual Standards

SSPC-VIS 1 pictorial comparison for blast cleaning, ISO 8501-1 initial rust grades A/B/C/D, and recognition of mill scale, rust, and pitting on steel

12%

Abrasive Blasting

Abrasive media (steel grit/shot, garnet, coal slag, aluminum oxide), profile depth target per coating system, SSPC-AB 1 abrasive cleanliness, nozzle pressure (~100 psi at the nozzle), and pot operation

16%

Spray Equipment & Tools

Airless spray (high-pressure, large output), conventional air spray, HVLP (high transfer efficiency), plural-component equipment for fast-set coatings, tip size selection, and roller/brush use for stripe coating

8%

Mixing, Thinning & Pot Life

Reading the product data sheet (PDS), correct mix ratio for two-component coatings, induction time, pot life management, and approved thinners and limits

10%

Environmental Conditions

Ambient and surface temperature, dew point, relative humidity, the 5 °F (3 °C) rule above dew point, use of a sling psychrometer or electronic gauge

10%

Film Thickness & Application Defects

Wet film thickness (notched comb gauge per ASTM D4414), dry film thickness fundamentals, and recognizing/correcting runs, sags, orange peel, dry spray, pinholes, holidays, and overspray

How to Pass the AMPP CAS-1 Exam

What You Need to Know

  • Passing score: 70%
  • Assessment: 1-hour in-person written multiple-choice exam offered in English and Spanish at AMPP-authorized test sites. No hands-on practical at Level 1.
  • Time limit: 1 hour
  • Exam fee: Via AMPP Store

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

AMPP CAS-1 Study Tips from Top Performers

1Memorize the SSPC-SP standard numbers and cleanliness definitions cold — SP 1 (solvent), SP 2 (hand tool), SP 3 (power tool), SP 6 (Commercial Blast, ~33% staining), SP 10 (Near-White, 5% staining), SP 11 (Power Tool to Bare Metal, with profile)
2Learn the OSHA silica rule (29 CFR 1910.1053): PEL is 50 µg/m³ as an 8-hour TWA, action level is 25 µg/m³, and abrasive blasting with silica sand is essentially banned outdoors — practice respirator APF math (half-mask APF 10, full-face APF 50, supplied-air positive-pressure APF 1,000+)
3Master the 5 °F rule: do not apply most coatings unless the steel surface temperature is at least 5 °F (3 °C) above the dew point — be ready to read a psychrometric chart given dry bulb and wet bulb
4Know your spray equipment differences: airless (high pressure, no atomizing air, fast production), conventional (atomizing air, fine finish), HVLP (high transfer efficiency, low overspray), plural-component (mixes A + B at the gun for fast-set 100% solids materials)
5Practice identifying common defects from photos and descriptions — runs and sags from over-application, orange peel from poor atomization, dry spray from holding the gun too far, holidays from skipped passes, pinholes from solvent or air entrapment

Frequently Asked Questions

What is the AMPP CAS Level 1 certification?

The AMPP Coating Application Specialist (CAS) Level 1 is an entry-level industrial-applicator credential built on the SSPC-ACS 1 / NACE No. 13 standard (Industrial Coating and Lining Application Specialist Qualification and Certification). It validates foundational knowledge of safety, SSPC surface preparation standards, abrasive blasting, spray equipment, environmental conditions, and basic application defects. The certification confirms a crew member is ready to work as an entry-level industrial coating applicator on steel and concrete structures, and is the required first step toward CAS Level 2.

How long is the CAS Level 1 exam and what is the passing score?

The CAS Level 1 exam is a 1-hour in-person written exam graded against a 70% passing score. The exam is offered in both English and Spanish at AMPP-authorized test sites and contains multiple-choice questions only — there is no hands-on practical at Level 1 (the practical evaluation is part of CAS Level 2). Bring a government-issued ID and arrive early to complete check-in. AMPP does not publish the exact question count or pass rate.

Are there prerequisites for the CAS Level 1 exam?

There are no formal prerequisites for the CAS Level 1 exam — any candidate can register through the AMPP Store. AMPP strongly recommends completing the 1-day CAS Prep course before attempting the exam, as it covers all topics in the SSPC-ACS 1 / NACE No. 13 body of knowledge at the Level 1 depth. Most candidates also have some shop or field exposure to surface preparation and spray application before testing.

How much does the CAS Level 1 exam cost?

The current AMPP CAS Level 1 exam fee is published on the AMPP Store (store.ampp.org) and varies by member status and test site. The fee covers the in-person written exam and initial certification. Retake fees follow the current AMPP fee schedule. The optional 1-day CAS Prep course is priced separately. Always confirm pricing on the AMPP Store before registering.

What SSPC and OSHA standards should I know for CAS Level 1?

Key SSPC standards include SP 1 (Solvent Cleaning), SP 2 (Hand Tool Cleaning), SP 3 (Power Tool Cleaning), SP 6/NACE No. 3 (Commercial Blast), SP 10/NACE No. 2 (Near-White Blast), and SP 11 (Power Tool to Bare Metal), plus SSPC-VIS 1 for visual comparison and SSPC-AB 1 for abrasive cleanliness. For safety, know OSHA 29 CFR 1910.1053 silica (PEL 50 µg/m³, action level 25 µg/m³), 29 CFR 1910.134 respiratory protection (APF selection), 29 CFR 1926.501 fall protection (6-ft trigger height), and 29 CFR 1926.451 scaffolding.

How long is the CAS Level 1 certification valid?

The AMPP CAS Level 1 certification is valid for 4 years from the date of issuance. Renewal is handled through the AMPP Certification Portal and follows the current AMPP renewal policy, which typically involves documenting continued industry activity and paying the renewal fee. CAS Level 1 must be in active status to advance to CAS Level 2. Standards revisions to SSPC-ACS 1 / NACE No. 13 and SSPC surface preparation standards may be reflected in renewal-cycle exams.