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1. Sid Stewart (28/30)
2. Mark Gierke (25/30)
3. michael beitzel (24/30)
4. Doug Driscoll, Sr. (23/30)
5. Richard Williams (21/30)
6. Juan I. Ordinas (20/30)
7. Lee Burke (19/30)
8. Yasuhiro Karakawa (19/30)
9. Douglas Steitz (19/30)
10. Brian Dove (18/30)
11. Pierpaolo Bonora (18/30)
12. Beau Ackx (17/30)
13. Destiny Johnson (17/30)
14. Bill Gradisher (17/30)
15. Dave Heyne (17/30)
16. Roland Peemans (17/30)
17. Alex Hoogesteger (14/30)
18. Mark Anater (13/30)
19. Jeff Rickert (12/30)
20. Donald Molinari (12/30)
TUESDAY, JULY 14, 2020
True or false: 10 ppm is the maximum level of carbon monoxide allowed by OSHA in breathing air for supplied-air respirators.
True. False.
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Previous Quizzes from the Past Week
MONDAY, JULY 13, 2020 Which of the following surface preparation methods for concrete produces the largest surface profile?
FRIDAY, JULY 10, 2020 True or false: The U.S. Naval Research Laboratory developed an alternative to epoxy non-skid/non-slip deck coatings based on siloxane technology.
THURSDAY, JULY 9, 2020 True or false: There is a standard for determining if abrasive is contaminated with oil that involves putting abrasive in a clean glass jar with clean water, putting a lid on the jar and shaking it, and then checking for an oil film on the surface of the water or coloration or cloudiness of the water itself.
WEDNESDAY, JULY 8, 2020 True or false: Lower explosive limit is defined as the concentration at ordinary ambient temperatures of a compound in air above which an explosion will not occur if the mixture is ignited.
TUESDAY, JULY 7, 2020 True or false: A three-year study by the U.S. Bureau of Reclamation found that copper-based antifouling coatings were the most effective at combating macro-fouling organisms like zebra and quagga mussels.
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