Water Treatment Oit Test Already Passed

a) sewage will deplete the water of oxygen required by fish and other animals {Ans: Why does untreated sewage cause serious problems to streams and lakes? a) sewage will deplete the water of oxygen required by fish and other animals b) sewage creates unpleasant odours for water animals c) sewage decreases the temperature of the water d) sewage will decrease the amount of nutrients in the water}d) sewage works operators {Ans: O. Reg. 129/04 addresses the licensing of: a) drinking water operators b) water quality analysts c) medical officers of health d) sewage works operators}c) curb stop {Ans: What is the name of the valve which connects the customer's service line to the municipal water line? a) bypass valve b) control flume c) curb stop d) check valve}b) Is a greenish/yellow gas with a penetrating odour; is heavier than air {Ans: Which of the following statements accurately describes some of the properties of chlorine? a) I a colourless gas which is toxic to plants and animals; is flammable and explosive b) Is a greenish/yellow gas with a penetrating odour; is heavier than air c) Is a yellowish gas with an irritating odour; insoluble in water d)