CWEA Grade 4 Test EXAM Questions & Answers | With 100% Correct Answergraded A+ (updated 2026) Guaranteed Success!!

CWEA Grade 4 Test EXAM Questions & Answers | With 100% Correct Answer
graded A+ (updated 2026) Guaranteed Success!!

1. AA atomic absorption

2. AC power alternating current

3. ac acre

4. AF acre-foot (feet)

5. AFY acre-foot per year

6. AMSA Association of Metropolitan Sewerage
Agencies

7. ANSI American National Standards Institute

8. APHA American Public Health Association

9. AS activated sludge

10. ASCE American Society of Civil Engineers

11. ASME American Society of Mechanical
Engineers

12. ASTM American Society for Testing and
Materials

13. AWT advanced wastewater treatment

14. AWWA American Water Works Association

15. BECP Business Emergency and
Contingency Plan




, CWEA Grade 4 Test EXAM Questions & Answers | With 100% Correct Answer
graded A+ (updated 2026) Guaranteed Success!!

16. BNR biological nutrient removal

17. BOD5 biochemical oxygen demand after
5 days

18. BTU British thermal unit

19. C Celsius

20. Cal-OSHA California Occupational Safety and
Health Act

21. Cal-EPA California Environmental Protection
Administration

22. CBOD carbonaceous biochemical oxygen
demand

23. CCE carbon chloroform extract

24. CCR California Code of Regulations

25. cf cubic feet (foot)

26. CFR Code of Federal Regulations

27. cfs cubic feet per second

28. CH4 Methane

29. CIU Categorical Industrial User
Categorical Industrial User
CIU