NACE CIP Level 2 Complete Study Guide Exam.
WJ-1 (visual cleanliness) is comparable to which abrasive blast cleaning standard? - CORRECT ANSWER ISO SA 3
Robotic water jetting includes - CORRECT ANSWER *attaches using vacuum, cables or magnets
*Vertical, Horizontal or overhead surface
*Con...
NACE CIP Level 2 Complete Study Guide
Exam.
WJ-1 (visual cleanliness) is comparable to which abrasive blast cleaning standard? - CORRECT ANSWER
ISO SA 3
Robotic water jetting includes - CORRECT ANSWER *attaches using vacuum, cables or magnets
*Vertical, Horizontal or overhead surface
*Controlled by single operator
*Collects in excess of 95% of the water, removed coatings and rust (waste generated)
A typical waterjetting team consists of? - CORRECT ANSWER *Nozzle operator
*Pump Operator
*Additional operators or workers as required
Considerations with Back Thrust are: - CORRECT ANSWER *Causes Fatique
*Should be no more than 1/3 of operators body weight
Safety considerations before waterjetting are - CORRECT ANSWER *work area is properly barricaded
*Electrical equipment protected from water
*Electrical connections are not allowed to sit in water
*All fittings and hoses are in good condition / proper pressure rating
How do you reduce the relative humidity of the boundary layer? - CORRECT ANSWER *Increase surface
temperature
*Reduce moisture by dehumidification
Equipment used for dehumidification? - CORRECT ANSWER *Refrigeration
*Desiccant
Describe passivation and what it does? - CORRECT ANSWER *formation of protective oxide film
* reduces chemical activity
*reduce the ability to corrode
What are the effects of oxygen on corrosion? - CORRECT ANSWER Oxygen increases corrosion
What are the effects of temperature on corrosion? - CORRECT ANSWER Higer temperature increases
corrosion
What are the effects of chemical salts on corrosion? - CORRECT ANSWER They increase the electrolyte
efficiency, therefore increasing corrosion
What are the effects of Humidity on corrosion? - CORRECT ANSWER A wetter environment means more
corrosion is likely to occur
What are the effects of Pollutants and Acid gases on corrosion? - CORRECT ANSWER Acid rain, chemical
byproducts and chlorides all promote corrosion.
What are the causes for pinholes? - CORRECT ANSWER *Coating overspray
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