NACE REVIEW QUESTION SET WITH
ACCURATE ANSWERS
◉ Can a holiday detector be used for conductive coating on non-
conductive surface?
Answer: No
◉ According to NACE SP0188, the wetted sponge is moved at a
maximum rate of ____
Answer: 1 linear foot per second (30 cm)
◉ Which standard would you reference if you notice blisters in a
variety of shapes and sizes?
Answer: ASTM D714
◉ When are NACE international surface preparation standards
considered binding?
Answer: when specified in the contract documents
◉ You are preforming holiday testing on a pipe covered in dew.
The reason you are receiving erroneous readings is ______
Answer: telegraphing
,◉ Which joint NACE/SSPC abrasive blasting standard states that
"Random staining shall be limited to no more than 33% of each
unit area of surface"?
Answer: NACE No. 3 / SSPC-SP 6 Commercial Blast Cleaning
◉ Which blasting standard allows for traces of tightly adherent
mill scale, rust, and tightly adherent thin coatings up to 10% ?
Answer: NACE No. 8 / SSPC-SP 14
◉ According to NACE No.4/SSPC SP-7, mill scale, rust, and paint
are considered adherent if they cannot be removed by _____
Answer: lifting with a dull putty knife
◉ ISO 8501 ST-3 is the standard for which of the following?
Answer: very thorough hand and/or power tool cleaning
◉ Which standard requires a "commercial grade" power tool
cleanliness?
Answer: SP 15
◉ Grounding the pump and fluid hose used in airless spray
prevents ____
Answer: static sparking
, ◉ Which standard is achieved if the steel has scattered tightly
adherent rust remaining on less than 5% of the unit area?
Answer: NACE No. 8 / SSPC-SP 14
◉ Fisheyes (cissing) often resemble crater-like breaks in the
coating film that reveal tiny areas of substrate because of _______
Answer: contamination such as grease, oil, or silicone
◉ Define corrosion
Answer: Deterioration of a substance, usually a metal, or its
properties because of a reaction with the environment
◉ What is passivation?
Answer: The build up of an oxide on the surface of a metal to
protect against further corrosion
◉ What are the elements of a corrosion cell?
Answer: - anode
- cathode
- electrolyte
- metallic pathway
◉ Describe what happens at the anode
Answer: The metal dissolves into the electrolyte
ACCURATE ANSWERS
◉ Can a holiday detector be used for conductive coating on non-
conductive surface?
Answer: No
◉ According to NACE SP0188, the wetted sponge is moved at a
maximum rate of ____
Answer: 1 linear foot per second (30 cm)
◉ Which standard would you reference if you notice blisters in a
variety of shapes and sizes?
Answer: ASTM D714
◉ When are NACE international surface preparation standards
considered binding?
Answer: when specified in the contract documents
◉ You are preforming holiday testing on a pipe covered in dew.
The reason you are receiving erroneous readings is ______
Answer: telegraphing
,◉ Which joint NACE/SSPC abrasive blasting standard states that
"Random staining shall be limited to no more than 33% of each
unit area of surface"?
Answer: NACE No. 3 / SSPC-SP 6 Commercial Blast Cleaning
◉ Which blasting standard allows for traces of tightly adherent
mill scale, rust, and tightly adherent thin coatings up to 10% ?
Answer: NACE No. 8 / SSPC-SP 14
◉ According to NACE No.4/SSPC SP-7, mill scale, rust, and paint
are considered adherent if they cannot be removed by _____
Answer: lifting with a dull putty knife
◉ ISO 8501 ST-3 is the standard for which of the following?
Answer: very thorough hand and/or power tool cleaning
◉ Which standard requires a "commercial grade" power tool
cleanliness?
Answer: SP 15
◉ Grounding the pump and fluid hose used in airless spray
prevents ____
Answer: static sparking
, ◉ Which standard is achieved if the steel has scattered tightly
adherent rust remaining on less than 5% of the unit area?
Answer: NACE No. 8 / SSPC-SP 14
◉ Fisheyes (cissing) often resemble crater-like breaks in the
coating film that reveal tiny areas of substrate because of _______
Answer: contamination such as grease, oil, or silicone
◉ Define corrosion
Answer: Deterioration of a substance, usually a metal, or its
properties because of a reaction with the environment
◉ What is passivation?
Answer: The build up of an oxide on the surface of a metal to
protect against further corrosion
◉ What are the elements of a corrosion cell?
Answer: - anode
- cathode
- electrolyte
- metallic pathway
◉ Describe what happens at the anode
Answer: The metal dissolves into the electrolyte
