When faced with a licensing exam, don't struggle with test anxiety! Use the question below and others from our Exam Study Guide series to properly study and prepare for exam questions. Take a look at this sample wastewater treatment licensing question along with an explanation of the correct answer.Sample question:Your plant seems to be having problems. Dissolved oxygen readings are much higher than normal and microscopic analysis shows very few to no protozoa present. What is the most likely problem?A) Very low food to mass ratio, increase your wasting rateB) Excessive FOG problem, check your pretreatment recordsC) Plant sludge age is too high, decrease
