CWEA Grade 4 Test Verified Questions with Correct Answers A+ | California Water Environment Association (CWEA) | 2026/2027 Complete Exam Study Guide Actual A+ Grade

CWEA Grade 4 Test verified questions with correct answers A+
Grade 2026\2027


AA
- correct answer atomic absorption



AC
- correct answer power alternating current



ac
- correct answer acre



AF
- correct answer acre-foot (feet)



AFY
- correct answer acre-foot per year



AMSA
- correct answer Association of Metropolitan Sewerage

Agencies



ANSI
- correct answer American National Standards Institute



APHA
- correct answer American Public Health Association

,AS
- correct answer activated sludge



ASCE
- correct answer American Society of Civil Engineers



ASME
- correct answer American Society of Mechanical

Engineers



ASTM
- correct answer American Society for Testing and

Materials



AWT
- correct answer advanced wastewater treatment



AWWA
- correct answer American Water Works Association



BECP
- correct answer Business Emergency and

Contingency Plan



BNR
- correct answer biological nutrient removal



BOD5
- correct answer biochemical oxygen demand after

5 days

, BTU
- correct answer British thermal unit



C
- correct answer Celsius



Cal-OSHA
- correct answer California Occupational Safety and

Health Act



Cal-EPA
- correct answer California Environmental Protection

Administration



CBOD
- correct answer carbonaceous biochemical oxygen

demand



CCE
- correct answer carbon chloroform extract



CCR
- correct answer California Code of Regulations



cf
- correct answer cubic feet (foot)



CFR
- correct answer Code of Federal Regulations



cfs
- correct answer cubic feet per second