Welcome back to TPO magazine's Exam Study Guide Series, which offers a pair of water/wastewater study questions with in-depth explanations of the answers. Last time, we covered a set of wastewater and drinking water treatment questions on the topics of Waste Gas Burners and Identifying Blown Fuses. This time you can test your knowledge about repacking pumps, and pump current signals.
Wastewater Treatment Sample QuestionWhat condition may occur if old packing is not removed completely before repacking a pump?
A. Tension-alignment problemsB. Shaft scoring C. Excessive leaking from the magnetic sealD. Packing gland misalignment
Water Treatment Sample Question
What mA signal should an operator expect if the chemical feed pump is operating at 75% flow capacity
