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Quiz Leaderboard: 7/3 - 8/2/2015    Sign in to track your quiz score! | Full Leaderboard

  • 1. Juan I. Ordinas (16/16 answered correctly)

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  • 11. Doug Driscoll, Sr. (15/16 answered correctly)

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  • 17. L. Steven Moore (13/16 answered correctly)

  • 18. Bryon Beck (13/16 answered correctly)

  • 19. Roland Peemans (13/16 answered correctly)

  • 20. Stephen Lipsham (13/16 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

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.


RPB Respiratory
AN INSTANTLY CLEAN VISOR? HOW IS THAT POSSIBLE?

With RPB Safety’s new Nova 3 Cassette Lens System which has been specifically designed to save you time and money! See the benefits for yourself now!


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

Join SSPC and Enhance
Your Career !


Bullard

The Next Generation
of Blasting

• Lightest
• Coolest
• Most Comfortable
• Most Dependable


Dampney Co., Inc.
High Temperature White Paint

New Coating with not yellow, remains white and will withstand temperatures up to 1,200ºF


SAFE Systems, Inc.
SAFE Systems'
Blast Lights &
Deadman Switches

Halogen or LED blast lights available with our NEW urethane bumper. Switches available in many colors for color coding your hoses.


Graco Inc.
Graco M680 Mortar Pump

Compact and portable. Great for concrete resurfacing and repairs. Handles mortars, cementitious and filled materials.
Call 877-844-7226 or info@graco.com.


Armorthane
Polyurethane and Polyurea Sprayed-On Protection

Buy POLYURETHANE or POLYUREA coatings and spray equipment for years of proven chemical resistance, water- and weather-proofing, and structural improvements.


Industrial Vacuum Equipment Corp.
Hurricane Vacuums
& Dust Collectors

Vacuum and dust collector hose, filters and related accessories.
IndustrialVacuum.com


Farrow System USA, Inc.
       SIMPLY the BEST
In Wet Abrasive Blasting

Automated controls simplify operation. 100lb. media capacity & enclosed water tank, for hours of continuous blasting. Dry weight of 350 lbs. & 150 psi capable.

 
 
 
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