MCQ PracticeIrradiation of water by ultraviolet light of suitable wavelength is commonly used for disinfection of water inSubject: Chemical EngineeringTopic: Environmental Engineering In CeAFood industryBMunicipal sewage treatmentCPetroleum refineryDIron & steel plantCorrect Answer: APractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the