PaintSquare.com
      | Connect Follow us on Twitter Like us on Facebook
About | Subscribe | Advertise
  

 

Get the latest FREE eResource Blasting Resource Guide Download Now

 

Daily Quiz (32)


True or false: In an air abrasive blasting operation, if you change from a sand abrasive with a specific gravity of 2 to a garnet abrasive with a specific gravity of 4, you should expect an increase in cleaning rate.


True or false: Air abrasive blast workers are regularly exposed to noise in excess of 120 dBA.


True or false: In air abrasive blasting operations, the same particle size mix of silica sand and coal slag yield the same profile ranges on steel.


True or false: In air abrasive blast systems, the bull hose carries pressurized air and abrasive to the blast nozzle.


True or false: There are both pneumatic and electric remote controls for air abrasive blast systems.


What is a common name for the safety cut-out device at the blast nozzle of an abrasive blast system, which is connected to a pressure-relief valve on the blast pot?


True or false: Scabbling produces a rougher profile on concrete than does air-abrasive blasting with sand.


Among these choices, what is the ideal air pressure at the nozzle for a blaster to achieve optimum productivity from an air abrasive blast system employed to clean and profile carbon steel?


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


True or False: In judging the conformance of abrasive blast cleaning of steel with SSPC standards, such as SSPC-SP 10, the photos in SSPC-VIS 1 depicting levels of cleanliness take precedence over the written descriptions of required levels of cleanliness.


Which of the following methods for measuring surface profile is not described in ASTM D4417, “Standard Test Method for Field Measurement of Surface Profile of Blast Cleaned Steel”?


What is the source of potential inhalation hazards that blasters face in air abrasive blasting operations?


Which of the following SSPC abrasive blast cleaning standards requires the most rigorous degree of cleaning of steel?


In air abrasive blasting, why is it sometimes useful to adjust the angle of attack (angle of the nozzle in relation to the workpiece)?


If SSPC-SP 16, “Brush-Off Blast Cleaning of Coated and Uncoated Galvanized Steel, Stainless Steels, and Non-Ferrous Metals,” is used to prepare architectural aluminum for recoating, what blast pressure should be used?


True or False: Generally speaking, a high-density abrasive will not clean as fast as a less-dense abrasive.


Among the options below, which is the most important in achieving the specified surface profile on steel when you are air abrasive blast cleaning?


What is a typical particle speed for abrasive in an air abrasive blast system that utilizes a venturi nozzle?


Which of the following conditions affect the efficiency of an air abrasive blasting system?


A reduction in air abrasive blast nozzle pressure from 100 psi to 80 psi has what effect on the productivity of the blasting operation?


True or false: ISO Sa2.5, describing very thorough abrasive blast cleaning, gives a more comprehensive written description of the end condition of the steel after blasting than SSPC SP 10/NACE No. 2, Near white metal, which requires a similar end condition.


Which of the following factors influences the appearance of steel after blast cleaning?


What is likely to be the result of oil in the compressed air used for abrasive blast cleaning?


How can air abrasive blasting with sponge media create a profile on steel?


If you are using a supplied-air respirator for protection during abrasive blast cleaning, when is it OK to take it off?


Why is it sometimes useful to adjust the angle of attack (angle of the nozzle in relation to the work piece) when conducting air abrasive blasting?


In air abrasive blasting operations, how is a moisture separator or filter used?


What is most likely to help you achieve the specified profile on the steel you are blast cleaning?


True or false: A research study by Roper, Weaver and Brandon indicated that the number of peaks in a steel surface profile created by abrasive blast cleaning affects coating performance.


Abrasive blast cleaning to remove lead-based paint is governed by what EPA regulation?


What is the name of the roughened surface created on steel by abrasive blast cleaning?


What is a common name for a sample of the end result of blast cleaning prepared on the metal substrate at a project site with the abrasive used for the project?


 
 
   

**Commercial white papers, product videos, and other sponsored documents posted on this site are paid content from third-party companies; inclusion and posting on this site does not imply an endorsement nor recommendation of the content by Technology Publishing/PaintSquare. By signing in and viewing or downloading this paid content, you agree to make your name and full contact information available to the sponsor of the content.

Industrial Vacuum Equipment Corp.
Hurricane Vacuums
& Dust Collectors

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


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


Clemco Industries Corp.
Maximum Dust Suppression Systems Start at $14,950

The system comprises proven technology and equipment with user-friendly flexibility in mind. See it in action.


Nationwide Overspray
Profession Overspray Removal Services

The Finest Name in Safe Overspray Removal. We specialize in removing all contaminants from any surface. Family Owned and Operated for 33 years! Fully insured. Satisfaction is guaranteed.


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.


Absolute Equipment/Grand Rental Station
TIER 4 EQUIPMENT

We have Tier 4 Equipment including Air Compressors & Generators for Sale & Rent! Your job may now require Tier-4. www.absoluteequip.com or Call 412-931-6655.


Clemco International GmbH
Global engineering-trusted solutions

For more than 70 years, Clemco has provided the highest quality blast equipment with a total commitment to comfort and safety.


US Minerals
US Minerals -
Black Magnum

With nationwide production and distribution capabilities, U.S. Minerals supplies a complete range of coal slag and other abrasives to meet all of your blasting needs.


Bullard

The Next Generation
of Blasting

• Lightest
• Coolest
• Most Comfortable
• Most Dependable


Harsco
BLACK BEAUTY® App

Download the free app for BLACK BEAUTY® Abrasives. Explore all the features from the palm of your hand.
Toll Free: 1-888-733-3646

 

Technology Publishing Co., 2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951

TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@paintsquare.com


The Technology Publishing Network

Durability + Design PaintSquare the Journal of Protective Coatings & Linings Paint BidTracker

 
EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About PaintSquare.com   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us