MCQ PracticeIn a sedimentation tank, the detention period for water ranges from __________ hours.Subject: Chemical EngineeringTopic: Environmental Engineering In CeA2 to 4B8 to 12C16 to 20D24 to 32Correct 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