CWEA COLLECTIONS GRADE 4 EXAMINATION PAPER 2026 COMPLETE QUESTIONS AND CORRECT SOLUTIONS

CWEA COLLECTIONS GRADE 4
EXAMINATION PAPER 2026 COMPLETE
QUESTIONS AND CORRECT SOLUTIONS

⩥ 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


⩥ 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


⩥ 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