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Quiz Leaderboard: 4/29 - 5/29/2015    Sign in to track your quiz score! | Full Leaderboard

  • 1. Matt Burst (21/22 answered correctly)

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  • 4. Mark Gierke (21/22 answered correctly)

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  • 19. willem van Gent (19/22 answered correctly)

  • 20. Gustavo Vidal (19/22 answered correctly)


Wednesday, February 19, 2014

High-pressure, supplied-air respirators are given an Assigned Protection Factor of 25 by NIOSH. What does this 25 mean?

The wearer can be exposed to particulates of 25 microns or smaller.
The wearer can be exposed to breathable material above its OSHA Permissible Exposure Limit for 25 minutes before exiting the exposure zone for at least 10 minutes.
The wearer can be exposed to contaminants in a concentration of up to 25 times OSHA’s Permissible Exposure Limit.
None of these

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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?


More previous quizzes

Bullard

The Next Generation
of Blasting

• Lightest
• Coolest
• Most Comfortable
• Most Dependable


Clemco Industries Corp.
Powerful Protection in a Small Package

Mounts inside blast helmet, alerts operator to dangerous breathing-air condition by audible, visual, and vibratory alarms. Easily calibrated, battery operated.


SSPC: The Society for Protective Coatings
http://www.sspc.org/

Join SSPC and Enhance
Your Career !


RPB Respiratory
GET A FREE COOL TUBE

Take advantage of RPB Safety’s coolest promotion yet! Throughout the entire month of May you will receive a free Cool Tube with every...


International Paint LLC

International Paint Engineered Coatings

Learn about our solutions for:
  • Structural Steel
  • Piping & Equipment
  • Storage Tanks
  • Pressure Vessels
  • Secondary Containment


    HoldTight Solutions Inc.
    NO FLASH RUST -
    NO CONTAMINANTS

    Our HoldTight®102 salt remover & flash rush inhibitor prevents flash rust by removing surface contaminants.
    Contact us for your nearest distributor. (800) 319.8802 sales@holdtight.com


    Sidewinder/Persyst Enterprises, Inc.
    The Sidewinder Model M2 Solvent Recycler

    Combat the rising cost of gunwash, thinners, acetone & more while drastically reducing waste disposal coat.


    Novatek Corporation
    Dustless Coatings Removal

    Strip it, clean it, and profile it,
    all dust free! High production
    rates and Blast like finishes.
    Comply with new lead
    standards.


    Abrasives Inc.
    One Call Orders it All!

    Life is good when it’s simple. We distribute Clemco blast equipment, nozzles & parts alongside our proven blast media. Make your call: Abrasives Inc. 800-584-7524


    CHLOR*RID International Inc.
    Free Webinar

    Learn about soluble salts, along with a discussion on allowable levels.
    More information at
    www.chlor-rid.com,

    800-422-3217

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