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1. Mark Gierke (22/25)
2. michael beitzel (21/25)
3. Bill Gradisher (16/25)
4. Sid Stewart (15/25)
5. Juan I. Ordinas (15/25)
6. Roland Peemans (14/25)
7. Dave Heyne (14/25)
8. Doug Driscoll, Sr. (14/25)
9. Douglas Steitz (13/25)
10. Brian Dove (13/25)
11. Mark Anater (12/25)
12. Richard Williams (11/25)
13. Luís Bonifácio (11/25)
14. Destiny Johnson (10/25)
15. Yasuhiro Karakawa (10/25)
16. Bryon Beck (9/25)
17. Dirk Kuijken (9/25)
18. Lee Burke (9/25)
19. Chuck Fite (8/25)
20. David Cohen (8/25)
TUESDAY, NOVEMBER 27, 2018
True or false: It is harder to remove coal tar epoxy than coal tar enamel from a steel substrate.
True False
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Previous Quizzes from the Past Week
MONDAY, NOVEMBER 26, 2018 True or false: If coatings were removed before abrading a concrete floor slab to conduct the ASTM anhydrous calcium chloride test, four hours must elapse between grinding and conducting the test.
WEDNESDAY, NOVEMBER 21, 2018 True or false: “Working mix” and “operating mix” denote the same thing.
TUESDAY, NOVEMBER 20, 2018 True or false: Sulfate-reducing bacteria contribute to corrosion by reacting with water to produce hydrogen sulfide.
MONDAY, NOVEMBER 19, 2018 True or false: For a supplied-air respirator, OSHA requires Grade D air with an oxygen content of 19.5 to 23.5 percent.
FRIDAY, NOVEMBER 16, 2018 True or false: In North America, there are three hand- and power-tool cleaning standards.
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