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Quiz Leaderboard: 2/16 - 3/18/2018    Sign in to track your quiz score! | Full Leaderboard

  • 1. Chuck Fite (19/20 answered correctly)

  • 2. willem van Gent (19/20 answered correctly)

  • 3. Mark Allen (19/20 answered correctly)

  • 4. Wes Carter (19/20 answered correctly)

  • 5. Robert Cloutier (19/20 answered correctly)

  • 6. Doug Driscoll, Sr. (19/20 answered correctly)

  • 7. Adam Carter (19/20 answered correctly)

  • 8. Mark Gierke (19/20 answered correctly)

  • 9. Michael Beitzel (18/20 answered correctly)

  • 10. Bryon Beck (18/20 answered correctly)

  • 11. Richard Williams (18/20 answered correctly)

  • 12. Douglas Steitz (18/20 answered correctly)

  • 13. Glenn D. Hauser (18/20 answered correctly)

  • 14. Ron Truman (18/20 answered correctly)

  • 15. Juan I. Ordinas (18/20 answered correctly)

  • 16. Roland Peemans (18/20 answered correctly)

  • 17. Mark Anater (18/20 answered correctly)

  • 18. Dustin Smith (17/20 answered correctly)

  • 19. Jerrod (Jake) McCann (17/20 answered correctly)

  • 20. Dave Heyne (17/20 answered correctly)

In abrasive blasting work, how small do dust particles have to be to make them respirable?

100 microns or less
50 microns or less
10 microns or less
500 microns or less

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Previous Quizzes from the Past Week

Wednesday, January 8, 2014
True or false: Flake-filled, novolac vinyl esters have been successfully used on scrubber modules, exit ducts and stacks in fossil-fueled power plants.

Tuesday, January 7, 2014
What term is used to describe the temperature at which the non-crystalline portion of a polymer is transformed from a rubbery material to a brittle, glass-like material?

Monday, January 6, 2014
True or false: The speed of abrasive exiting a venture nozzle in an efficient air abrasive blasting system is typically about 200 mph.

Friday, January 3, 2014
In a study of shop-applied topcoats reported in JPCL, which generic type achieved a hardened film that resisted handling damage at lower temperatures (50°F) and higher humidity (75% RH) in the shortest amount of time?

Thursday, January 2, 2014
True or false: The main reason for using citric acid to etch concrete is to create a profile coarser than that created by other etching agents.

More previous quizzes
Graco Inc.
Graco EcoQuip 2: Experience the Difference
While others claim their equipment is the same, none of them compare to Graco’s EcoQuip 2™ Vapor Abrasive® blasting line. Visit to learn more.

NLB Corporation
NLB Sure Shroud: Greater Protection and Flexibility
NLB’s Sure Shroud’s lighter weight and flexibility reduces operator fatigue and offers unmatched protection against high pressure hose ruptures. 10k to 40k psi rated.

SABRE Autonomous Solutions
The ALPHA1 provides reliable results consistently allowing you to cost your next job with confidence.

SAFE Systems, Inc.
Custom blast rooms
by SAFE Systems
Don't waste time and money "making do" with a "standard" design. Let us work with you to design and build the system that best fits your requirements.
Call 1-800-634-7278

Absolute Equipment/Grand Rental Station
We have Tier 4 Equipment including Air Compressors & Generators for Sale & Rent! Your job may now require Tier-4. or Call 412-931-6655.

Industrial Vacuum Equipment Corp.
Hurricane Vacuums
& Dust Collectors
Vacuum and dust collector hose, filters and related accessories.

CHLOR*RID International Inc.
Companies that invest in corrosion control use CHLOR RID products
  • Soluble salt removal liquid
  • Test kits to verify contamination levels
  • Surface passivation to hold the blast
INFO@CHLOR-RID.COM 800.422.3217

Fischer Technology Inc.
Maximize Profits by Monitoring Coating Thickness
Learn more by contacting Fischer Technology today: 1.860.683.0781

Bullard Made in the USA


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