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Thursday, January 9, 2014

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

Atlantic Design, Inc.

The smallest version of our Blast Vacuum Recyclers, this ADI 2300CFM 2-Pot is a cleverly designed power package for those smaller jobs. 866.Call.ADI

CHLOR*RID International Inc.

*Stop flash rust
*Provides outstanding
*Easy to use and only pennies
per square foot
*Works with poor quality
*Use for mist blasting, vapor
blasting, wet blasting and
*Leaves no residue and
provides excellent adhesion.

Find BLACK BEAUTY® Abrasives

Use our online tool to search by address, city or zip code to find where you can buy BLACK BEAUTY® abrasives. Or call us toll free: 1-888-733-3646

Monti Tools, Inc.

Surface cleanliness of SSPC-10 | Anchor profile
up to 4.7 mils | Removes corrosion & coatings |
ATEX approved for zone 1
| | 832-623-7970

N.T. Ruddock Co.

Our Abrasives Hold Up Under Pressure

N. T. Ruddock focuses on abrasive selection, equipment evaluation, equipment maintenance & reduction of abrasive consumption. Other services include Screen Analysis & Background Radiation Testing.

Axxiom Manufacturing
Schmidt Improves Conversion Kits

Schmidt's conversion kits turn out-of-date blast pots into high quality, efficient blasters. Quick, easy to install with step by step instructions.
Call 1-800-231-2085

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.

Abrasives Inc.
Check our Prices for Blast Abrasives

Faced with higher abrasive costs? We invite you to call & check our rates on Black Magic® coal slag and other quality blast materials. Abrasives Inc. 800-584-7524

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.

Graco Inc.
Saves up to 80% of energy costs

• Smooth, low pulsation
• No air motor = no more icing
• First of its kind approved for
  hazardous locations
e-Xtreme™ Electric Airless Sprayer Learn more

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