Daily Quiz (6)


True or false: Upcoming preservation work on the southbound Stillaguamish River Bridge will require a full containment system.


True or false: NFPA 33, the Standard for Spray Application Using Flammable or Combustible Materials, does not provide ventilation guidelines for containment structures used on bridges during painting operations.


True or false: Some departments of transportation and other owners continue to list design containment ventilation air flow rates of 60 fpm down-draft and 100 fpm cross-draft in their specifications.


True or false: During abrasive blasting operations inside containment in cold weather, dust collection may pull heat out of the containment structure as fast as it is being put in by heating equipment.


The accumulation of fats, oils and greases (FOG) can have what negative impact on sewer systems?


True or false: One system used to repair cracked concrete in a secondary containment structure was a geotextile coated with polyurea.


 
 
   

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