Rectifiers Galvanic Corrosion Potential Measurements Coatings Corrosion Theory
100
What is a Step Down Transformer
This device takes incoming power and reduces it to a more workable voltage.
100
What is magnesium.
This type of anode is typically found in galvanic cathodic protection.
100
What is -500mV to -800mV.
This is the native potential range of bare steel.
100
What is a Holiday.
This is term for a defect in a coating system.
100
What is an anode, cathode, electrolyte and metallic path.
These four things are necessary for corrosion to occur.
200
What is the Groundbed or Anodes
The cable coming from this is connected to the positive terminal of the Rectifier.
200
What is the electrolyte.
Water and soil are considered this in a galvanic corrosion cell.
200
What is the Negative or Black lead.
When taking Pipe-to-Soil measurements, this lead is connected to the reference cell.
200
What is a Product Data Sheet (PDS) or Technical Data Sheet (TDS).
This document outlines the instructions for installing a coating from the surface preparation to the finished product.
200
What is Corrosion or Metal Loss.
This is caused whenever current leaves a steel structure.
300
What is the Structure or Pipe
The cable coming from this is connected to the negative terminal of the Rectifier.
300
What is Galvanic Cathodic Protection.
This type of cathodic protection system is used for low current output and small sections of protection.
300
What is -850mV.
This is the criteria that must be met to consider a pipeline or structure to be cathodically protected.
300
What is a Coating.
This is the first line of defense in corrosion control.
300
What is Faraday's Law.
This law of electricity states that for every amp of current leaving a steel structure within a years time will take 20lbs of material with it.
400
What is the Diode
This device converts AC voltage to DC voltage in a Rectifier.
400
What is a Polarization Film.
This is formed on the cathode in response to the electrochemical process in a working galvanic cathodic protection system.
400
What is the area of Pick-up.
When dealing with Stray Current, this area will show readings of a higher potential.
400
What is a Sling Psychrometer.
This device is used in a whirling motion to determine relative humidity of the atmosphere.
400
What is an Anode.
This object sacrifices itself to protect the cathode in a corrosion cell.
500
What is a good grounding system.
According to NACE or AMPP, this is considered the best protection for a Rectifier against a lightning strike.
500
What is the potential difference of the two dissimilar metals connected together.
The driving voltage in a galvanic corrosion cell is produced by this.
500
What is a permanent reference cell.
This piece of equipment is used to combat IR in the electrolyte when taking potential measurements.
500
What is at least 5 degrees Fahrenheit.
This is a the temperature difference between the surface and dew point required before coating can begin.
500
What is Corrosion.
This is the deterioration of a material, usually a metal, that results in an electrochemical reaction with its environment.






Basic Corrosion Jeopardy

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