Tceq: Class D Water Operator License Study Guide Questions And Correct Answers

In TX, water operator license is administered by the... A)EPA B)TNRCC -- TCEQ C)AWWA D)TWUA {Ans: B}A common filter problem is ___, prevented by proper backwashing. A)ice B)mud balls C)detention time D)coagulation {Ans: B}T/F: Calcium and magnesium and other minerals cause hardness in water. {Ans: True}A sample for physical and chemical analysis must be taken after ___ hours of pumping. A)3 B)6 C)36 D)63 {Ans: C}OSHA classifies soil into four categories: ___ rock, class A, class B and class C. A)hard B)stable C)soft D)sharp {Ans: B}T/F: The plant operator is responsible for making the water safe to drink and use. {Ans: True}