CWEA Grade 4 Test EXAM Questions & Answers | With 100% Correct
Answergraded A+ (updated 2026) Guaranteed Success!!
AA - (ANSWER)atomic absorption
AC - (ANSWER)power alternating current
ac - (ANSWER)acre
AF - (ANSWER)acre-foot (feet)
AFY - (ANSWER)acre-foot per year
AMSA - (ANSWER)Association of Metropolitan Sewerage
Agencies
ANSI - (ANSWER)American National Standards Institute
APHA - (ANSWER)American Public Health Association
AS - (ANSWER)activated sludge
ASCE - (ANSWER)American Society of Civil Engineers
ASME - (ANSWER)American Society of Mechanical
Engineers
ASTM - (ANSWER)American Society for Testing and
Materials
,CWEA Grade 4 Test EXAM Questions & Answers | With 100% Correct
Answergraded A+ (updated 2026) Guaranteed Success!!
AWT - (ANSWER)advanced wastewater treatment
AWWA - (ANSWER)American Water Works Association
BECP - (ANSWER)Business Emergency and
Contingency Plan
BNR - (ANSWER)biological nutrient removal
BOD5 - (ANSWER)biochemical oxygen demand after
5 days
BTU - (ANSWER)British thermal unit
C - (ANSWER)Celsius
Cal-OSHA - (ANSWER)California Occupational Safety and
Health Act
Cal-EPA - (ANSWER)California Environmental Protection
Administration
CBOD - (ANSWER)carbonaceous biochemical oxygen
demand
, CWEA Grade 4 Test EXAM Questions & Answers | With 100% Correct
Answergraded A+ (updated 2026) Guaranteed Success!!
CCE - (ANSWER)carbon chloroform extract
CCR - (ANSWER)California Code of Regulations
cf - (ANSWER)cubic feet (foot)
CFR - (ANSWER)Code of Federal Regulations
cfs - (ANSWER)cubic feet per second
CH4 - (ANSWER)Methane
CIU
Categorical Industrial User
CIU - (ANSWER)Categorical Industrial User
CM - (ANSWER)common mode
CMOM - (ANSWER)Capacity Management, Operations,
and Maintenance
COD - (ANSWER)chemical oxygen demand
CPU - (ANSWER)central processing unit
CRWA - (ANSWER)California Rural Water Association
Answergraded A+ (updated 2026) Guaranteed Success!!
AA - (ANSWER)atomic absorption
AC - (ANSWER)power alternating current
ac - (ANSWER)acre
AF - (ANSWER)acre-foot (feet)
AFY - (ANSWER)acre-foot per year
AMSA - (ANSWER)Association of Metropolitan Sewerage
Agencies
ANSI - (ANSWER)American National Standards Institute
APHA - (ANSWER)American Public Health Association
AS - (ANSWER)activated sludge
ASCE - (ANSWER)American Society of Civil Engineers
ASME - (ANSWER)American Society of Mechanical
Engineers
ASTM - (ANSWER)American Society for Testing and
Materials
,CWEA Grade 4 Test EXAM Questions & Answers | With 100% Correct
Answergraded A+ (updated 2026) Guaranteed Success!!
AWT - (ANSWER)advanced wastewater treatment
AWWA - (ANSWER)American Water Works Association
BECP - (ANSWER)Business Emergency and
Contingency Plan
BNR - (ANSWER)biological nutrient removal
BOD5 - (ANSWER)biochemical oxygen demand after
5 days
BTU - (ANSWER)British thermal unit
C - (ANSWER)Celsius
Cal-OSHA - (ANSWER)California Occupational Safety and
Health Act
Cal-EPA - (ANSWER)California Environmental Protection
Administration
CBOD - (ANSWER)carbonaceous biochemical oxygen
demand
, CWEA Grade 4 Test EXAM Questions & Answers | With 100% Correct
Answergraded A+ (updated 2026) Guaranteed Success!!
CCE - (ANSWER)carbon chloroform extract
CCR - (ANSWER)California Code of Regulations
cf - (ANSWER)cubic feet (foot)
CFR - (ANSWER)Code of Federal Regulations
cfs - (ANSWER)cubic feet per second
CH4 - (ANSWER)Methane
CIU
Categorical Industrial User
CIU - (ANSWER)Categorical Industrial User
CM - (ANSWER)common mode
CMOM - (ANSWER)Capacity Management, Operations,
and Maintenance
COD - (ANSWER)chemical oxygen demand
CPU - (ANSWER)central processing unit
CRWA - (ANSWER)California Rural Water Association
