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:What filament is considered the most common foaming filament and looks hard and branchy when viewed under a microscope?A) MicrothrixB) Type 082C) Type 1863D) NocardiaAnswer: Filamentous organisms can be distinguished from one another through microscopic examination and staining. Nocardia seems to be the most common. Nocardia growth is typically associated with warmer temperatures, longer retention
