NACE CIP Level 1 Study Guide;
Comprehensive Q&A For Certification
Success (2025)
Define Corrosion - correct-answer-The deterioration of a substance, usually a
metal from a reaction with its environment
What is Passivation? - correct-answer-A layer of oxides formed on the surface of a
metal that provides corrosion protection.
What is an example of passivation? - correct-answer-Stainless Steel
Advantages of centrifugal blast equipment include: - correct-answer-Dust and
fines are contained, abrasives are easily recycled, blasting and priming can be an
inline operation, general overall economy compared to air blasting, no
compressors, piping, or air handling equipment needed for wheel blasting
The Inspector's checklist for surface preparation should include: - correct-answer-
ambient conditions, conditions of substrate, pre-blast surface cleanliness,
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shot/grit size selection, shot/grit cleanliness, abrasive blasting equipment, surface
profile, surface cleanliness after abrasive blasting, operator qualifications, safety
Abrasive media types include: - correct-answer-shot & grit (metallic), crushed
slag, ceramic grit, silica sand, garnet, agricultural abrasives, specialty abrasives
Abrasive media typically used for recycling include: - correct-answer-steel shot,
steel grit
List the water pressure ranges that categorize: - correct-answer-low pressure
water cleaning: <34 MPa (5,000 psi), high-pressure water cleaning: 34 to 70 MPa
(5,000 to 10,000 psi), High-Pressure water jetting: 70 to 210 MPa (10,000 to
30,000 psi), Ultrahigh=Pressure water jetting: >210 MPa (30,000 psi)
Three (3) test methods for surface profile - correct-answer-(ISO) comparator &
coupons, replica tape (Testex strips), digital surface profile gauge
Types of soluble salt contamination include: - correct-answer-chlorides, sulfates,
nitrates
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If inspection is to be effective with regards to *soluble salt* the specification
should very clearly state: - correct-answer-limits to be accepted, specific salts to
be limited, test method to be used, frequency of testing, locations in which tests
should be administered
Test for soluble salts include: - correct-answer-bresle patch, sleeve test, soluble
salt meters, conductivity meters
Depth of surface profile can be evaluated by several methods: - correct-answer-
ISO Comparator, replica tape, digital profile gauge
The ISO Comparator grades may be recorded: - correct-answer-Finer-than-fine
grade, fine grade, medium grade, coarse grade, coarser than coarse grade
The two types of replica tape are commonly used: - correct-answer-Coarse - for
20 to 64um (0.8 to 2.5 mils), X Coarse - for 38 to 115 um (1.5 to 4.5 mils)
List the standards for using the Replica tape: - correct-answer-ASTM D 4417
Method C, NACE SP 0287-2202