NACE 1 LATEST 2023 PRACTICAL QUESTIONS AND 100%
CORRECT ANSWERS ANSWERS) (VERIFIED
Cathode - ANSWER: More noble region where electrons are consumed. Reduction
occurs at the cathode
Anode - ANSWER: Part of the metal that corrodes. Oxidation occurs at the anode
Return Path - ANSWER: Connects cathode and anode and allows passage of
electrons generated at the anode to the cathode
Electrolyte - ANSWER: Medium that conducts ionic (rather than electronic) current
Negative Electrode - ANSWER: Zinc case which corresponds to the anode in a
corrosion cell
High Voltage Detection Types - ANSWER: 1. Rolling Spring 2. Smooth Neoprene Flaps
3. Bristle Brush
Low Voltage Detectors Battery Range is: - ANSWER: 5-120V DC
General Types of Holiday Detectors - ANSWER: 1. Low voltage DC 2. High voltage DC
3. High voltage pulsed DC 4. High voltage AC
Adhesion Failures May be Caused by: - ANSWER: 1. Contaminated surface 2. Wrong
surface prep. 3. Insufficient profile 4. Exceeding topcoat window
Checking can be Described as: - ANSWER: Line cracks in the coating surface
Causes of Cracking - ANSWER: 1. Stress from movement 2. Internal stress as coating
ages
Common Cause of Blistering - ANSWER: Surface contaminants: oil, moisture, and/or
grease
Pinholes are: - ANSWER: Small holes in the coating
Vacoules or voids are typically caused by: - ANSWER: Air trapped in coating during
mixing
Cratering may be caused by: - ANSWER: Air trapped in coating
A powdery, friable layer on the surface of a coating common with epoxy coatings is: -
ANSWER: Chalking
, Runs, sags and wrinkles are caused by: - ANSWER: 1. Coating applied too thickly 2.
Too much thinner 3. Surface too hot 4. Improper spray technique
Problems caused by amine blush - ANSWER: 1. Surface tackiness 2. Incomplete cure
3. Poor adhesion
Non drying films may be caused by: - ANSWER: 1. Environmental issues 2.
Wrong/contaminated thinner 3. Manufacturer coating issues
MSDS contains following - ANSWER: 1. Stability and reactivity 2. Handling and
storage 3. PPE 4. Physical and chemical properties
Coating product data sheets contain - ANSWER: 1. Generic type 2. Description 3.
Features
4. Color 5. Finish 6. Proper use 7. Performance data 8. VOC values 9. Application
methods
3 ways coating is applied - ANSWER: 1. Brush 2. Roller 3. Spray
High temp concerns - ANSWER: 1. Slow solvent evaporation 2. leaves moisture on
coating surface
Low temp concerns - ANSWER: 1. Slow cure times 2. Increased viscosity
Guide to enclosures - ANSWER: SSPC Technical Update #6
Project inspection documentation provides - ANSWER: 1. QC records 2. Management
Information 3. Verification of work 4. Details of non-conformance work
Good records allow management to: - ANSWER: 1. Detect design defects 2. Evacuate
coating performance 3. Develop ongoing maintenance program 4. Determine annual
cost data
Inspection records show: - ANSWER: 1. Environmental conditions 2. pretreatment
details 3. Cleaning details 4. Materials information 5. Coating applications 6. Tests
results
Documentation may include - ANSWER: 1. Dail reports 2. Inspection logs 3. Routine
reports 4. Monthly/quarterly reports
People who may be required to attend - ANSWER: 1. Owner 2. Engineer 3. Ops
personnel 4. Specifier 5. Purchase agent 6. Coating manufacturer 7. Coating
inspector 8. Project safety 9. Coating applicator
Goals of a pre-job conference - ANSWER: 1. HSE discussion 2. Adress/clarify
emergency procedures 3. Review SOW 4. Review logistical support 5. Discuss/clarify
inspector responsibilities 6. Clarify chain of command
CORRECT ANSWERS ANSWERS) (VERIFIED
Cathode - ANSWER: More noble region where electrons are consumed. Reduction
occurs at the cathode
Anode - ANSWER: Part of the metal that corrodes. Oxidation occurs at the anode
Return Path - ANSWER: Connects cathode and anode and allows passage of
electrons generated at the anode to the cathode
Electrolyte - ANSWER: Medium that conducts ionic (rather than electronic) current
Negative Electrode - ANSWER: Zinc case which corresponds to the anode in a
corrosion cell
High Voltage Detection Types - ANSWER: 1. Rolling Spring 2. Smooth Neoprene Flaps
3. Bristle Brush
Low Voltage Detectors Battery Range is: - ANSWER: 5-120V DC
General Types of Holiday Detectors - ANSWER: 1. Low voltage DC 2. High voltage DC
3. High voltage pulsed DC 4. High voltage AC
Adhesion Failures May be Caused by: - ANSWER: 1. Contaminated surface 2. Wrong
surface prep. 3. Insufficient profile 4. Exceeding topcoat window
Checking can be Described as: - ANSWER: Line cracks in the coating surface
Causes of Cracking - ANSWER: 1. Stress from movement 2. Internal stress as coating
ages
Common Cause of Blistering - ANSWER: Surface contaminants: oil, moisture, and/or
grease
Pinholes are: - ANSWER: Small holes in the coating
Vacoules or voids are typically caused by: - ANSWER: Air trapped in coating during
mixing
Cratering may be caused by: - ANSWER: Air trapped in coating
A powdery, friable layer on the surface of a coating common with epoxy coatings is: -
ANSWER: Chalking
, Runs, sags and wrinkles are caused by: - ANSWER: 1. Coating applied too thickly 2.
Too much thinner 3. Surface too hot 4. Improper spray technique
Problems caused by amine blush - ANSWER: 1. Surface tackiness 2. Incomplete cure
3. Poor adhesion
Non drying films may be caused by: - ANSWER: 1. Environmental issues 2.
Wrong/contaminated thinner 3. Manufacturer coating issues
MSDS contains following - ANSWER: 1. Stability and reactivity 2. Handling and
storage 3. PPE 4. Physical and chemical properties
Coating product data sheets contain - ANSWER: 1. Generic type 2. Description 3.
Features
4. Color 5. Finish 6. Proper use 7. Performance data 8. VOC values 9. Application
methods
3 ways coating is applied - ANSWER: 1. Brush 2. Roller 3. Spray
High temp concerns - ANSWER: 1. Slow solvent evaporation 2. leaves moisture on
coating surface
Low temp concerns - ANSWER: 1. Slow cure times 2. Increased viscosity
Guide to enclosures - ANSWER: SSPC Technical Update #6
Project inspection documentation provides - ANSWER: 1. QC records 2. Management
Information 3. Verification of work 4. Details of non-conformance work
Good records allow management to: - ANSWER: 1. Detect design defects 2. Evacuate
coating performance 3. Develop ongoing maintenance program 4. Determine annual
cost data
Inspection records show: - ANSWER: 1. Environmental conditions 2. pretreatment
details 3. Cleaning details 4. Materials information 5. Coating applications 6. Tests
results
Documentation may include - ANSWER: 1. Dail reports 2. Inspection logs 3. Routine
reports 4. Monthly/quarterly reports
People who may be required to attend - ANSWER: 1. Owner 2. Engineer 3. Ops
personnel 4. Specifier 5. Purchase agent 6. Coating manufacturer 7. Coating
inspector 8. Project safety 9. Coating applicator
Goals of a pre-job conference - ANSWER: 1. HSE discussion 2. Adress/clarify
emergency procedures 3. Review SOW 4. Review logistical support 5. Discuss/clarify
inspector responsibilities 6. Clarify chain of command
