CM 2112 COATINGS EXAM
QUESTIONS WITH CORRECT
SOLUTIONS||100% GUARANTEED
PASS||UPDATED 2026/2027
SYLLABUS||<<RECENT VERSION>>
Embrittlement - ANSWER ✓ Severe loss of ductility of a metal (or alloy).
enamel - ANSWER ✓ A substance composed of a specially processed coal-tar
pitch or bitumen, combined with an inert mineral filler.
erosion - ANSWER ✓ Destruction of metals by the abrasive action of moving
fluids accelerated by the presence of solid particles in suspension.
Field adhesion testing - ANSWER ✓ Test the adhesion of the coatings after
application.
finish coat (topcoat) - ANSWER ✓ The final coat in a painting system.
flame cleaning - ANSWER ✓ The impingement of an intensely hot flame to the
surface of structural steel, resulting in the removal of mill scale and the
dehydration of any remaining rust, leaving the surface in a condition suitable for
wire brushing, followed by the immediate application of paint.
flame spraying - ANSWER ✓ Thermal spraying in which coating material is fed
into an oxyfuel gas flame, where it is melted.
flux - ANSWER ✓ Material used during welding, brazing, or braze welding to
clean the surfaces of joints,
prevent atmospheric oxidation, and to reduce impurities.
galvinizing - ANSWER ✓ The application of a coating of zinc to steel by a
variety of methods.
, Galvaneal - ANSWER ✓ To produce a zinc-iron alloy coating on iron or steel by
keeping the coating molten after hot-dip galvanizing until the zinc alloys
completely with the base metal.
holiday - ANSWER ✓ A discontinuity in a coating (such as porosity, cracks, etc.)
that allows areas of base metal to be exposed to any corrosive environment that
contacts the coated surface.
intermediate coat (undercoat) - ANSWER ✓ The paint intended to be used
between the primer and topcoat in a paint system.
leakage or coating resistance - ANSWER ✓ Leakage resistance of pipe or
resistance of pipe radially to remote earth.
manual cleaning - ANSWER ✓ Includes hand cleaning and power tool cleaning.
manufacturer - ANSWER ✓ The person, firm, or corporation that manufactures
and provides the coatings under the provisions of relevant standard
metal spraying - ANSWER ✓ Application of a spray coat of metal (usually zinc
or aluminum) onto a prepared surface.
metallic coating - ANSWER ✓ One or more layer of metal on a steel base (base
material).
mill scale - ANSWER ✓ Mill scale is the term used for the surface oxides
produced during hot rolling of steel. It breaks and flakes when the steel is flexed
and paint applied over it may fail prematurely.
organic - ANSWER ✓ Being or composed of hydrocarbons or their derivatives,
or matter of plant or animal origin.
paint - ANSWER ✓ Any pigmented liquid, liquifiable, or mastic composition
designed for application to a
substrate in a thin layer that is converted to an opaque solid film after application.
Used for
protection, decoration, or identification, or to serve some other function.
QUESTIONS WITH CORRECT
SOLUTIONS||100% GUARANTEED
PASS||UPDATED 2026/2027
SYLLABUS||<<RECENT VERSION>>
Embrittlement - ANSWER ✓ Severe loss of ductility of a metal (or alloy).
enamel - ANSWER ✓ A substance composed of a specially processed coal-tar
pitch or bitumen, combined with an inert mineral filler.
erosion - ANSWER ✓ Destruction of metals by the abrasive action of moving
fluids accelerated by the presence of solid particles in suspension.
Field adhesion testing - ANSWER ✓ Test the adhesion of the coatings after
application.
finish coat (topcoat) - ANSWER ✓ The final coat in a painting system.
flame cleaning - ANSWER ✓ The impingement of an intensely hot flame to the
surface of structural steel, resulting in the removal of mill scale and the
dehydration of any remaining rust, leaving the surface in a condition suitable for
wire brushing, followed by the immediate application of paint.
flame spraying - ANSWER ✓ Thermal spraying in which coating material is fed
into an oxyfuel gas flame, where it is melted.
flux - ANSWER ✓ Material used during welding, brazing, or braze welding to
clean the surfaces of joints,
prevent atmospheric oxidation, and to reduce impurities.
galvinizing - ANSWER ✓ The application of a coating of zinc to steel by a
variety of methods.
, Galvaneal - ANSWER ✓ To produce a zinc-iron alloy coating on iron or steel by
keeping the coating molten after hot-dip galvanizing until the zinc alloys
completely with the base metal.
holiday - ANSWER ✓ A discontinuity in a coating (such as porosity, cracks, etc.)
that allows areas of base metal to be exposed to any corrosive environment that
contacts the coated surface.
intermediate coat (undercoat) - ANSWER ✓ The paint intended to be used
between the primer and topcoat in a paint system.
leakage or coating resistance - ANSWER ✓ Leakage resistance of pipe or
resistance of pipe radially to remote earth.
manual cleaning - ANSWER ✓ Includes hand cleaning and power tool cleaning.
manufacturer - ANSWER ✓ The person, firm, or corporation that manufactures
and provides the coatings under the provisions of relevant standard
metal spraying - ANSWER ✓ Application of a spray coat of metal (usually zinc
or aluminum) onto a prepared surface.
metallic coating - ANSWER ✓ One or more layer of metal on a steel base (base
material).
mill scale - ANSWER ✓ Mill scale is the term used for the surface oxides
produced during hot rolling of steel. It breaks and flakes when the steel is flexed
and paint applied over it may fail prematurely.
organic - ANSWER ✓ Being or composed of hydrocarbons or their derivatives,
or matter of plant or animal origin.
paint - ANSWER ✓ Any pigmented liquid, liquifiable, or mastic composition
designed for application to a
substrate in a thin layer that is converted to an opaque solid film after application.
Used for
protection, decoration, or identification, or to serve some other function.
