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Quiz Leaderboard: 2/18 - 3/20/2018    Sign in to track your quiz score! | Full Leaderboard

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Sulfate-reducing bacteria contribute to corrosion by what mechanism?

Reacting with sulfur-containing organic matter to produce hydrogen sulfide
Reacting with water to produce hydrogen sulfide
Erosion corrosion
Cavitation corrosion

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Previous Quizzes from the Past Week

Tuesday, April 19, 2011
True or false: It is sometimes useful to stripe coat steel edges and irregular surfaces after the full primer coat is applied.

Monday, April 18, 2011
Surface profile on steel, measured as peak-to-valley height of the roughness, has several other names, including which of the following.

Friday, April 15, 2011
Which of the following abrasive types is normally the hardest?

Thursday, April 14, 2011
In the list of actions below, which one precedes all the others in development of a maintenance painting program?

Wednesday, April 13, 2011
What organization conducts research on safety and health issues and provides technical assistance to OSHA?

More previous quizzes
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

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.

SAFE Systems, Inc.
Enduroguard -
The Tough Cable
for a Tough Industry.
Reduce maintenance costs and down time, increase job site safety with Enduroguard Cable. Available exclusively from SAFE Systems. UL listed, flexible, abrasion resistant and cut resistant.

Tarps manufacturing, Inc.
QUALITY MADE IN AMERICA —Available near you!
CLICK to get a behind-the-scenes look at how Tarps Manufacturing makes the highest-quality tarps right here in the USA — available nationwide.

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.

New resins from BASF will have metals loving water!
Excellent corrosion resistance, low VOC, high gloss, thin films 800-231-7868

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

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.

Fischer Technology Inc.
FISCHER Expands Corrosion Product Line
Rounding out Fischer’s extensive line of products for measuring protective coatings in the corrosion industry is the new ultrasonic wall thickness gauge UMP series.

Jotun Paints Inc.
Jotun Jotachar 1709
Mesh-free passive fire protection epoxy designed to protect against hydrocarbon pool fire scenarios for up to four hours as defined in the ANSI/UL1709 standard.


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