AMPP Coating Inspector Program - Level 2 Practice Questions — 10 Free (2026)
Answer them, then check the reasoning and the clause each one comes from. No account, no card, nothing to dismiss.
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What distinguishes a galvanic system from an impressed current system?
Worked answers
All ten AMPP Coating Inspector Program - Level 2 questions with the correct option, why it is correct and the paragraph it comes from. Attempt them above first — the reasoning is worth more than the key.
Show the ten answers and their references
- Q1 · AMPP CIP2 · Closed book
What distinguishes a galvanic system from an impressed current system?
- A. A galvanic system is used underground and an impressed current system is used only offshore, whatever the size of the structure
- B. A galvanic system requires an insulating joint and impressed current does not
- C. A galvanic system protects coated steel and an impressed current system protects bare steel, whatever the service conditions are
- D. A galvanic system is driven by the natural potential of a sacrificial anode, while impressed current uses an external supply ✓
- E. A galvanic system is monitored monthly and impressed current annually
The source of the driving voltage is the distinction, and it determines the output available and the degree of control possible. Location, insulating joints, coating condition and monitoring interval do not define the difference. NACE/AMPP CIP Level 2 course material and exam preparation guide, 3.2
- Q2 · AMPP CIP2 · Closed book
What does a conductivity measurement of the extract indicate?
- A. The concentration of chloride ions alone within the sample taken
- B. The total quantity of dissolved ionic material present ✓
- C. The depth of the surface profile beneath the area that was sampled
- D. The thickness of the coating that will later be applied to the area
- E. The relative humidity of the air at the moment the test was made
Conductivity responds to all dissolved ions together and cannot distinguish between them, so a chloride specific method is needed where that ion alone is limited. Profile, film thickness and humidity are unrelated properties. NACE/AMPP CIP Level 2 course material and exam preparation guide, 5.5
- Q3 · AMPP CIP2 · Closed book
Why is a polyurethane finish commonly specified over an epoxy primer and intermediate?
- A. Because polyurethane adheres to steel better than epoxy does
- B. Because polyurethane cures at lower temperatures than epoxy does
- C. Because polyurethane retains its gloss and colour under sunlight ✓
- D. Because polyurethane costs considerably less than epoxy does
- E. Because polyurethane can be applied without any surface preparation
Each layer contributes what it does best, and the combination gives both protection and appearance retention. Adhesion to steel, low temperature cure, cost and preparation are not the reason. NACE/AMPP CIP Level 2 course material and exam preparation guide, 6.1
- Q4 · AMPP CIP2 · Closed book
How is a solvent rub test performed on a coating?
- A. The coating is immersed in the stated solvent for a set number of hours and then examined
- B. A cloth wetted with the stated solvent is rubbed over the film a set number of double rubs ✓
- C. The coating is sprayed with solvent and the run off is collected
- D. The coating is heated until the solvent evaporates from within it
- E. The coating is scraped with a knife and the shavings are then dissolved in the stated solvent
An undercured film softens or transfers colour to the cloth, while a properly cured one resists the solvent. Immersion, spraying, heating and scraping are not the method. NACE/AMPP CIP Level 2 course material and exam preparation guide, 6.4
- Q5 · AMPP CIP2 · Closed book
What is the principal limitation of roller application?
- A. It cannot be used on any flat surface of significant extent
- B. It always produces a film thicker than the specified maximum
- C. It requires a compressor and a supply of clean dry air
- D. It generates more overspray than any other application method
- E. It cannot reach into corners, edges and detail ✓
A roller covers flat area quickly but leaves detail uncoated and can give a variable film. Unsuitability for flat areas, excessive thickness, a compressor requirement and overspray are all incorrect. NACE/AMPP CIP Level 2 course material and exam preparation guide, 7.1
- Q6 · AMPP CIP2 · Closed book
What four elements must all be present for a corrosion cell to operate?
- A. An anode, a cathode, a coating and a source of oxygen supply
- B. An anode, a cathode, an inhibitor and a metallic connection path
- C. An anode, a cathode, an electrolyte and a metallic path joining them ✓
- D. An anode, an electrolyte, a coating and a source of applied current
- E. A cathode, an electrolyte, an inhibitor and a source of oxygen supply
Remove any one of the anode, the cathode, the electrolyte or the metallic path and the cell cannot function, which is why every control method targets one of them. Coatings, inhibitors, oxygen and applied current are means of interfering with the cell rather than components of it. NACE/AMPP CIP Level 2 course material and exam preparation guide, 3.1
- Q7 · AMPP CIP2 · Closed book
A coating with 75 percent volume solids is thinned by 10 percent by volume. What is the volume solids of the thinned material?
- A. 6.8 percent
- B. 65.0 percent
- C. 67.5 percent
- D. 68.2 percent ✓
- E. 82.5 percent
The solids are unchanged in quantity but are now spread through a larger total volume, so the percentage falls by the ratio of the original volume to the new total. Simply subtracting the thinning percentage, or applying it directly to the solids, gives the wrong answers, and the solids can never rise. NACE/AMPP CIP Level 2 course material and exam preparation guide, 6.4
- Q8 · AMPP CIP2 · Closed book
How does conventional air spray atomise the coating?
- A. The material is forced through a small orifice at very high pressure
- B. Compressed air is mixed with the material stream at the gun ✓
- C. The material is heated until it vaporises and then condenses on the surface
- D. An electrostatic charge is applied to the material to disperse it
- E. A rotating disc throws the material outwards by centrifugal force
Air does the atomising, which gives a fine finish but also considerable overspray and a limited film build. High pressure through an orifice describes airless, and heating, charging and rotating describe other techniques. NACE/AMPP CIP Level 2 course material and exam preparation guide, 7.1
- Q9 · AMPP CIP2 · Closed book
What happens at the anode of a corrosion cell?
- A. Metal atoms give up electrons and pass into the electrolyte as ions ✓
- B. Metal atoms accept electrons and are deposited from the electrolyte
- C. Oxygen and water combine with electrons to form hydroxyl ions there
- D. Hydrogen ions accept electrons and are released as hydrogen gas
- E. Electrons travel through the electrolyte towards the cathode area
Oxidation and metal loss occur at the anode, and the released electrons then travel through the metal. Deposition, oxygen reduction and hydrogen evolution are cathodic reactions, and electrons do not travel through the electrolyte. NACE/AMPP CIP Level 2 course material and exam preparation guide, 3.1
- Q10 · AMPP CIP2 · Closed book
What distinguishes a destructive coating test from a non-destructive one?
- A. A destructive test is carried out in a laboratory and the other on site
- B. A destructive test is carried out by the client and the other by the contractor
- C. A destructive test damages the coating at the point of testing ✓
- D. A destructive test uses an instrument and the other uses only the eye
- E. A destructive test is optional while a non-destructive test is mandatory
Whether the film survives the test is the distinction, and it is why destructive tests are limited in number and their locations recorded for repair. Location, party, instrumentation and obligation are not what separates them. NACE/AMPP CIP Level 2 course material and exam preparation guide, 6.4
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