NACE CIP 1 Exam Questions and
Answers 100% Pass
High-Voltage AC Holiday Detector - ✔✔This uses a 110 V or 220 V power supply. The
AC detector is based on the principle of the Tesla coil and does not use a ground wire.
The probe emits a blue corona, which is attracted to any ground.
High-Voltage Constant Current DC Holiday Detector - ✔✔This instrument is used to
detect coating holidays in dielectric coatings. Once the voltage is set, pass the electrode
over the sur- face. A spark will arc through the air gap, causing the detector to emit an
audible sound.
High-Voltage Pulse-Type DC Holiday Detector - ✔✔This instrument is ideal for use in
moist conditions. Pass the electrode over the surface. A spark will arc through the air
gap at any hol- idays, voids, or discontinuities, causing the detector to emit an audible
sound.
Low-Voltage Holiday Detector - ✔✔This instrument is a sensitive, low-voltage (wet-
sponge) electronic device powered by a battery with output voltages ranging from 5-
120 V DC.
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, BMR (Base Metal Readings) - ✔✔To adjust for surface roughness, measure the blast
profile of the steel to be painted at a number of spots to obtain a representative average
value. This average value is the base metal reading (BMR).
DFT Gauge (Type 1) - ✔✔instruments are described as magnetic pull-off gauges. The
force required to pull a magnet from a ferrous surface is used to determine the film
thickness.
DFT Gauge (Type 2) - ✔✔instruments are electronic gauges. They use electronic
circuitry to convert a reference signal into coating thickness.
BMR (Base Metal Readings) - ✔✔To adjust for surface roughness, measure the blast
profile of the steel to be painted at a number of spots to obtain a representative average
value. This average value is the base metal reading (BMR).
Wet Film Comb - ✔✔Instrument used to measure film thickness. The comb is pushed
into the film. Upon removal, the thickness mea- sure is shown on the gauge.
Chlorides - ✔✔are the salts of hydrochloric acid HCl. The chloride ion forms when the
element chlorine picks up one electron to form the anion Cl− (a negatively-charged ion).
Nitrates - ✔✔Nitrates are salts of nitric acid with an ion composed of one nitrogen and
three oxy- gen atoms (NO−3).
Brittie Donald, All Rights Reserved © 2025 2
Answers 100% Pass
High-Voltage AC Holiday Detector - ✔✔This uses a 110 V or 220 V power supply. The
AC detector is based on the principle of the Tesla coil and does not use a ground wire.
The probe emits a blue corona, which is attracted to any ground.
High-Voltage Constant Current DC Holiday Detector - ✔✔This instrument is used to
detect coating holidays in dielectric coatings. Once the voltage is set, pass the electrode
over the sur- face. A spark will arc through the air gap, causing the detector to emit an
audible sound.
High-Voltage Pulse-Type DC Holiday Detector - ✔✔This instrument is ideal for use in
moist conditions. Pass the electrode over the surface. A spark will arc through the air
gap at any hol- idays, voids, or discontinuities, causing the detector to emit an audible
sound.
Low-Voltage Holiday Detector - ✔✔This instrument is a sensitive, low-voltage (wet-
sponge) electronic device powered by a battery with output voltages ranging from 5-
120 V DC.
Brittie Donald, All Rights Reserved © 2025 1
, BMR (Base Metal Readings) - ✔✔To adjust for surface roughness, measure the blast
profile of the steel to be painted at a number of spots to obtain a representative average
value. This average value is the base metal reading (BMR).
DFT Gauge (Type 1) - ✔✔instruments are described as magnetic pull-off gauges. The
force required to pull a magnet from a ferrous surface is used to determine the film
thickness.
DFT Gauge (Type 2) - ✔✔instruments are electronic gauges. They use electronic
circuitry to convert a reference signal into coating thickness.
BMR (Base Metal Readings) - ✔✔To adjust for surface roughness, measure the blast
profile of the steel to be painted at a number of spots to obtain a representative average
value. This average value is the base metal reading (BMR).
Wet Film Comb - ✔✔Instrument used to measure film thickness. The comb is pushed
into the film. Upon removal, the thickness mea- sure is shown on the gauge.
Chlorides - ✔✔are the salts of hydrochloric acid HCl. The chloride ion forms when the
element chlorine picks up one electron to form the anion Cl− (a negatively-charged ion).
Nitrates - ✔✔Nitrates are salts of nitric acid with an ion composed of one nitrogen and
three oxy- gen atoms (NO−3).
Brittie Donald, All Rights Reserved © 2025 2
