MCQ PracticeA shallow pond in which the sewage is retained and biologically treated is calledSubject: Chemical EngineeringTopic: Environmental Engineering In CeAOxidationBImhoff tankCLagoonDSkimming tankCorrect 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