Wednesday, February 19, 2014
High-pressure, supplied-air respirators are given an Assigned Protection Factor of 25 by NIOSH. What does this 25 mean?
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Previous Quizzes from the Past Week
Tuesday, February 18, 2014
True or false: With zinc-rich coatings on steel, the zinc becomes the anode in a galvanic cell and sacrifices itself to protect the cathode, the underlying steel.
Monday, February 17, 2014
True or false: A Bresle patch is used to treat dynamic cracks in concrete, especially in secondary containment structures around tanks.
Friday, February 14, 2014
True or false: Krebs units are units of elasticity of a paint.
Thursday, February 13, 2014
True or false: If a zinc-rich coating has an epoxy binder, it is classified as both an organic and an inorganic zinc-rich coating.
Tuesday, February 11, 2014
What happens to the condition of a steel substrate when waterjet cleaning is used to remove rust or existing coatings?
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