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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.
POWER ON WITH ADI!

The most air flow possible… In the smallest package imaginable… For a price you won’t believe! 866.Call.ADI


Axxiom Manufacturing
Schmidt Improves
Portable Blasters

Schmidt's VBS System reduces blowdown intensity, prevents exhaust from damaging floor while using no screens or filters. Reduces sound; Increasing safety.
Call 1-800-231-2085


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.


Abrasives Inc.
Need abrasives FAST?

Emergencies happen – who bails you out? One call to Abrasives Inc. and it's taken care of. Period. Sales support available 24/7.
800-584-7524


Advanced Recycling Systems
ADVANCED RECYCLING SYSTEMS (ARS)

Recycling Machines, Dust Collectors, Rapid Deployment units are time-tested and approved for the rugged industrial environment. Contact ARS today!
(330)536-8210


LS Industries
LS Blasters: Optimum Steel Cleaning Efficiency

Simplify surface prep with the precise shot control of LS Blasters. Our blast technology delivers optimum coverage and finish. 800-533-8008


Barton International
East Coast Shipyard Cut Blasting Costs 30% with BARTON

A comparison trial convinced this shipyard that they could realize significant savings by switching to Barton’s garnet instead of coal or copper slag.
Watch the video now.

 
 
 
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