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 study and prepare for exam questions. Take a look at this sample water treatment licensing question along with an explanation of the correct answer.Sample question:How should a lead and copper sample be collected?A) Always collect a first-draw sample where the water has been in the pipes for at least six hours
B) After the kitchen faucet has been flushed for one minute
C) After the bathroom faucet has been flushed for five minutes
D) Always collect from a tap that is never used
