ACTUAL EXAM PAPER 2026 COMPLETE
QUESTIONS WITH FULL SOLUTIONS GRADED
A+
◉ NACE #2/SSPC-SP 10. Answer: NEAR WHITE METAL BLAST
CLEANING. When viewed without magnification the surface shall be
free from visible oil, grease, dust, dirt, mill scale, rust, coating,
oxides, corrosion products, and other foreign matter. Random
staining shall be limited to no more than 5% of each unit area of
surface and may consist of lighshadows, slight streaks, or minor
discolorations caused by stains of rust, stains of mill scale or stains
of previously applied coatings.
◉ NACE #3/SSPC-SP-6. Answer: COMMERCIAL BLAST CLEANING.
When viewed without magnification the surface shall be free from
visible oil, grease, dust, dirt, mill scale, rust, coating, oxides,
corrosion products, and other foreign matter. Random staining shall
be limited to no more than 33% of each unit area of surface and may
consist of light shadows, slight streaks, or minor discolorations
caused by stains of rust, stains of mill scale or stains of previously
applied coatings.
◉ NACE #8/SSPC-SP14. Answer: INDUSTRIAL BLAST CLEANING.
When viewed without magnification the surface shall be free from
,visible oil, grease, dust, and dirt. Traces of light adherent mill scale,
rust, and coating residues are allowed to remain on 10% of each unit
area of the surface if the are randomly distributed. The traces of mill
scale, rust and coating are considered tightly adherent if they cannot
be removed by lifting with a dull putty knife. Shadows, streaks and
discolorations caused by stains of rust, stains of mill scale, or stains
of previously applied coatings may be present on the remainder of
the surface.
◉ NACE #4/SSPC-SP-7. Answer: BRUSH-OFF BLAST CLEANING.
When viewed without magnification the surface shall be free from
visible oil, grease, dust, dirt, loose mill scale, loose rust, and loose
coating. Tightly adherent mill scale, rust and coating may remain on
the surface. Mill scale, rust and coating are considered tightly
adherent if they cannot be removed by lifting a dull putty knife.
◉ SA 3. Answer: BLAST CLEANING TO VISUALLY CLEAN STEEL.
When viewed without magnification the surface shall be free from
visible oil, grease, dust dirt, mill scale, rust , coating, oxides,
corrosion products and other foreign matter. It shall have a uniform
metallic color
◉ SA 2 1/2. Answer: VERY THOROUGH BLAST CLEANING. When
viewed without magnification the surface shall be free from visible
oil, grease, dust dirt, mill scale, rust , coating, oxides, corrosion
products and other foreign matter. Any remaining traces of
,contamination will show only as slight stains in the form of spots or
stripes.
◉ SA 2. Answer: THOROUGH BLAST CLEANING. When viewed
without magnification the surface shall be free from visible oil,
grease, dust dirt, mill scale, rust , coating, oxides, corrosion products
and other foreign matter. Any residual contamination shall be firmly
adhering
◉ SA 1. Answer: LIGHT BLAST CLEANING. When viewed without
magnification the surface shall be free from visible oil, grease, dust,
dirt, mill scale, rust , paint coatings, and foreign matter.
◉ ST 2. Answer: THOROUGH HAND AND POWER TOOL CLEANING.
When viewed without magnification the surface shall be free from
visible oil, grease, dust, dirt, and from poorly adhering mill scale,
rust , paint coatings, and foreign matter
◉ ST 3. Answer: VERY THOROUGH HAND AND POWER TOOL
CLEANING. Same as ST 2, but the surface shall be treated much more
thoroughly to give a metallic sheen arising from the the metallic
substrate. When viewed without magnification the surface shall be
free from visible oil, grease, dust, dirt, and from poorly adhering mill
scale, rust , paint coatings, and foreign matter
, ◉ SSPC-SP 2. Answer: HAND TOOL CLEANING. Hand tool cleaning
removes all loose mill scale, rest, paint, and other detrimental
foreign matter. It is not intended that adherent mill scale, rust and
paint be removed by this process. Mill scale, rust, and paint are
considered adherent if they cannot be removed with a dull putty
knife.
◉ SSOC-SP 3. Answer: POWER TOOL CLEANING. Power tool cleaning
removes all loose mill scale, rest, paint, and other detrimental
foreign matter. It is not intended that adherent mill scale, rust and
paint be removed by this process. Mill scale, rust, and paint are
considered adherent if they cannot be removed with a dull putty
knife
◉ SSPC-SP 15. Answer: COMMERCIAL GRADE POWER TOOL
CLEANING. A commercial grade power tool cleaned surface when
viewed without magnification the surface shall be free from visible
oil, grease, dust dirt, mill scale, rust , coating, oxides, corrosion
products and other foreign material, except as noted in Section 2.2 of
the standard. Random staining shall be limited to no more than 33%
of each unit area of surface. Staining may consist of light shadows,
slight streaks, or minor discolorations caused by rust, mill scale, or
previously applied coatings. Slight residues of rest and paint may
also be left in the bottom of the pits if the original surface is pitted.
◉ SSPC-SP 11. Answer: POWER TOOL CLEANING TO BARE METAL.
A steel surface cleaned with power tools to bare metal when viewed