eWebOQ Delivering DOT Operator Qualification,  
Technical Skills, and Safety Training  
for the Energy Industry  
Course Snapshot & Objectives

Course Objectives

Upon completion of this course, the operating personnel will be able to:
  1. Identify DOT regulations 195.432, 195.434, 195.416, 195.242, and 195.244 regarding cathodic protection on liquid pipeline systems.
  2. Perform tank shell inspections in accordance with API-575 Inspection of Atmospheric and Low-Pressure Storage Tanks.
  3. List the four conditions that must be met before a corrosion cell can function.
  4. State how corrosion occurs where electrical current leaves or flows from a metal structure.
  5. State the function of the anodic and cathodic areas and their roles in protecting aboveground steel tanks from metal loss.
  6. Describe stray (interference) currents and direct current (DC).
  7. Identify general corrosion, pitting corrosion, and various types of corrosion cells on steel storage tanks.
  8. List two methods used to apply cathodic protection; galvanic (sacrificial) anodes and impressed current systems.
  9. State the external corrosion control testing intervals for cathodic protection systems, exposed pipe, and breakout tank inspection.
  10. Recognize abnormal operating conditions related to the performance of rectifier inspections and state the reactions to these abnormal operating conditions.