AMPP CIP Level 1 (Basic Coatings Inspector) Practical Exam Verified
original practice questions with detailed rationales, organized by the eight
stations of the hands-on exam
This is a comprehensive practice exam for the AMPP CIP Level 1
(Basic Coatings Inspector) Practical Exam, aligned with the
2026–2027 curriculum. It includes Verified original practice
questions with detailed rationales, organized by the eight
stations of the hands-on exam.
The practical exam is a closed-book assessment consisting of 8
stations, 10 minutes per station, plus a final 10-minute
calculation and review period without instruments. It is
administered on the final day of the AMPP classroom course
and tests your physical ability to use inspection instruments and
correctly log readings.
Exam Overview & Station Blueprint
Station Topic Key Instruments/Skills
Sling psychrometer, surface thermometer,
1 Environmental Conditions
psychrometric chart
,Station Topic Key Instruments/Skills
Comparators, replica tape (Testex), spring micrometer,
2 Surface Profile
224 gauge
High-Voltage Holiday
3 High-voltage DC holiday detector, NACE SP0188
Detection
4 Type 1 DFT Gauge Magnetic pull-off gauge, bare metal readings (BMR)
Low-Voltage Holiday
5 Wet-sponge detector, grounding, visual inspection
Detection
6 Wet Film Thickness (WFT) Notched comb gauge, WFT/DFT conversion
Electronic gauge (e.g., PosiTector), shims, spot
7 Type 2 DFT Gauge
readings
8 Soluble Salt Detection Bresle test, sleeve test, conductivity meter
Total Practical Points: 100
Station 1: Environmental Conditions
Q1. What is the primary purpose of taking environmental
readings before coating application?
A) To determine the coating color
B) To verify that ambient conditions are within the specification
,before work begins
C) To measure coating thickness
D) To test adhesion
Answer: B
Rationale: Environmental readings are taken to verify that
ambient conditions (temperature, humidity, dew point) are
within the limits specified by the coating manufacturer before
application begins.
Q2. Which instrument is used to measure wet-bulb and dry-
bulb temperatures?
A) DFT gauge
B) Sling psychrometer
C) Holiday detector
D) Replica tape
Answer: B
Rationale: A sling psychrometer (also called a whirling
hygrometer) measures wet-bulb and dry-bulb temperatures,
from which relative humidity and dew point are derived using a
psychrometric chart.
Q3. How long should the sling psychrometer be whirled through
the air?
A) 10 seconds
B) 30 seconds
, C) Approximately 90 seconds or until the wet-bulb reading
stabilizes
D) 5 minutes
Answer: C
Rationale: The inspector whirls the assembly through the air for
approximately 90 seconds (or until the wet-bulb reading
stabilizes at its lowest point), then reads both thermometers
immediately.
Q4. What is the wet-bulb depression?
A) The sum of dry-bulb and wet-bulb temperatures
B) Dry-bulb temperature minus wet-bulb temperature
C) Wet-bulb temperature minus dry-bulb temperature
D) The dew point
Answer: B
Rationale: Wet-bulb depression is the difference between the
dry-bulb temperature and the wet-bulb temperature (DBT −
WBT). A large depression means low humidity; a depression of
zero means the air is saturated (100% RH).
Q5. If the dry-bulb temperature is 70°F and the wet-bulb
temperature is 60°F, what is the wet-bulb depression?
A) 130°F
B) 10°F
original practice questions with detailed rationales, organized by the eight
stations of the hands-on exam
This is a comprehensive practice exam for the AMPP CIP Level 1
(Basic Coatings Inspector) Practical Exam, aligned with the
2026–2027 curriculum. It includes Verified original practice
questions with detailed rationales, organized by the eight
stations of the hands-on exam.
The practical exam is a closed-book assessment consisting of 8
stations, 10 minutes per station, plus a final 10-minute
calculation and review period without instruments. It is
administered on the final day of the AMPP classroom course
and tests your physical ability to use inspection instruments and
correctly log readings.
Exam Overview & Station Blueprint
Station Topic Key Instruments/Skills
Sling psychrometer, surface thermometer,
1 Environmental Conditions
psychrometric chart
,Station Topic Key Instruments/Skills
Comparators, replica tape (Testex), spring micrometer,
2 Surface Profile
224 gauge
High-Voltage Holiday
3 High-voltage DC holiday detector, NACE SP0188
Detection
4 Type 1 DFT Gauge Magnetic pull-off gauge, bare metal readings (BMR)
Low-Voltage Holiday
5 Wet-sponge detector, grounding, visual inspection
Detection
6 Wet Film Thickness (WFT) Notched comb gauge, WFT/DFT conversion
Electronic gauge (e.g., PosiTector), shims, spot
7 Type 2 DFT Gauge
readings
8 Soluble Salt Detection Bresle test, sleeve test, conductivity meter
Total Practical Points: 100
Station 1: Environmental Conditions
Q1. What is the primary purpose of taking environmental
readings before coating application?
A) To determine the coating color
B) To verify that ambient conditions are within the specification
,before work begins
C) To measure coating thickness
D) To test adhesion
Answer: B
Rationale: Environmental readings are taken to verify that
ambient conditions (temperature, humidity, dew point) are
within the limits specified by the coating manufacturer before
application begins.
Q2. Which instrument is used to measure wet-bulb and dry-
bulb temperatures?
A) DFT gauge
B) Sling psychrometer
C) Holiday detector
D) Replica tape
Answer: B
Rationale: A sling psychrometer (also called a whirling
hygrometer) measures wet-bulb and dry-bulb temperatures,
from which relative humidity and dew point are derived using a
psychrometric chart.
Q3. How long should the sling psychrometer be whirled through
the air?
A) 10 seconds
B) 30 seconds
, C) Approximately 90 seconds or until the wet-bulb reading
stabilizes
D) 5 minutes
Answer: C
Rationale: The inspector whirls the assembly through the air for
approximately 90 seconds (or until the wet-bulb reading
stabilizes at its lowest point), then reads both thermometers
immediately.
Q4. What is the wet-bulb depression?
A) The sum of dry-bulb and wet-bulb temperatures
B) Dry-bulb temperature minus wet-bulb temperature
C) Wet-bulb temperature minus dry-bulb temperature
D) The dew point
Answer: B
Rationale: Wet-bulb depression is the difference between the
dry-bulb temperature and the wet-bulb temperature (DBT −
WBT). A large depression means low humidity; a depression of
zero means the air is saturated (100% RH).
Q5. If the dry-bulb temperature is 70°F and the wet-bulb
temperature is 60°F, what is the wet-bulb depression?
A) 130°F
B) 10°F
