2023
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
, NACE CP1 - (2) | 115 Verified Questions and Answers)
2023
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