MCQ PracticeWater filtration rate in a slow sand filter ranges from __________ litres/m 2 /hr.Subject: Chemical EngineeringTopic: Environmental Engineering In CeA10 to 20B100 to 200C1500 to 2500D4000 to 5000Correct Answer: BPractice 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