PCS Cheat Sheet 2026

The 30 highest-yield PCS facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. EPA's Renovation, Repair and Painting (RRP) Rule under 40 CFR 745 applies to work that disturbs paint in which buildings? → Housing and child-occupied facilities built before 1978
2. Which type of personal protective equipment (PPE) is essential for spray coating operations? → Respirator
3. Why should a gas detector be bump-tested before each day's use? → To verify sensors respond and alarms activate
4. Why is coal tar epoxy use declining in many U.S. projects despite good immersion performance? → Health and environmental concerns over polycyclic aromatic hydrocarbons
5. In cathodic protection (CP) systems, what is the minimum protective potential (Cu/CuSO4 reference) for buried or submerged steel as specified by NACE SP0169? → -0.85 V
6. Coatings for the interior of a potable water storage tank must typically be certified to which standard? → NSF/ANSI/CAN 61
7. A specification requires 'ASTM D4285' testing before coating application. What does this test check for? → Oil and water contamination of compressed air
8. Which coating type is commonly selected for lining hot water or crude oil storage tanks requiring resistance to elevated-temperature immersion? → Epoxy phenolic
9. What code compliance requirement applies to equipment operation? → All work must comply with applicable local, state, and national codes
10. A coating specification calls for a minimum 'overlap' on stripe coats. What is the purpose of a stripe coat? → To ensure edges, welds, and corners receive adequate film build
11. During spray application inside a tank, what is the common practice for keeping solvent vapor levels safe? → Ventilate to stay at or below 10% LEL
12. When removing coatings that contain zinc chromate, what is the OSHA PEL for hexavalent chromium? → 5 µg/m³
13. When a specification requires 'inorganic zinc silicate primer,' what unique curing mechanism does this coating use? → Moisture-initiated silicate polymerization
14. A coating specification requires a 'holiday-free' lining. Which test method is used to detect pinholes and voids in an immersion-service lining? → High-voltage spark testing
15. How should equipment be maintained for material selection operations? → Follow manufacturer-recommended preventive maintenance schedules
16. What must happen before a worker is fit-tested or uses a respirator? → A medical evaluation
17. Which condition most commonly causes pinholes (holidays) to form in an applied coating? → Solvent entrapment during curing
18. What is the main advantage of HVLP (high-volume, low-pressure) spray compared with conventional air spray? → Higher transfer efficiency and less overspray
19. Under SSPC-PA 2, a single 'spot measurement' is the average of at least how many gauge readings taken in a small circle? → 3
20. What environmental protection measure applies to material selection? → Proper handling, storage, and disposal of materials according to environmental regulations
21. What is the main purpose of a visual inspection in coating quality control? → Identify surface defects
22. Thermal spray aluminum (TSA) is often preferred over thermal spray zinc in which environment? → Marine and elevated-temperature service such as CUI
23. Under OSHA 29 CFR 1926.1153, what is the PEL for respirable crystalline silica during abrasive blasting in construction? → 50 µg/m³ as an 8-hour TWA
24. What environmental protection measure applies to equipment operation? → Proper handling, storage, and disposal of materials according to environmental regulations
25. Which OSHA standard requires a written respiratory protection program, fit testing, and medical evaluation for respirator users? → 29 CFR 1910.134
26. An oil-lubricated compressor supplying blast helmets must have what safeguard? → A high-temperature alarm, CO alarm, or both
27. Alligatoring (crocodile cracking) of a coating surface is typically caused by which condition? → Application of a hard topcoat over a soft, incompletely cured primer
28. What is the corrosion mechanism known as 'undercutting' in relation to coated steel? → Corrosion spreading laterally beneath the coating from a defect
29. When a coating specification calls for a 'DFT' of 3–5 mils, what does DFT stand for? → Dry Film Thickness
30. Inline heaters are sometimes used on airless or plural-component lines mainly to do what? → Lower viscosity without adding solvent so the material atomizes better