OSSF DR Exam Study Guide Questions And Answers Verified 100% Correct

OSSF DR Exam Study Guide Questions And Answers Verified 100% Correct D. - Designated Representative - ANSWER -The _____ is responsible for reviewing permit applications, site evaluations, planning materials, and conducting inspections. A. Installer B. Site Evaluator C. Maintenance Technician D. Designated Representative A. - Installer - ANSWER -An individual who holds a valid license from the TCEQ and who is compensated by another individual to construct, install, alter, or repair an OSSF is a(n) ______. B. - Site evaluator - ANSWER -An individual who holds a valid license from the TCEQ and who is compensated by another individual to construct, install, alter, or repair an OSSF is a(n) ______. A. Apprentice B. Site Evaluator C. Authorized Agent D. Designated Representative D - All of the above - ANSWER -What OSSSF licenses require previous experience? A. Installer II B. Maintenance Provider C. Site Evaluator D. All of the above D - PE or RS - ANSWER -Planning materials for an OSSF utilizing secondary treatment must be prepared by a/an _____. A. Installer II B. Designated Representative C. Site Evaluator D. PE or RS True - ANSWER -True or False: Waterborne diseases are cause by microorganisms that live and grow in the intestines of human beings and animals. Disease causing microorganisms (Pathogens) are passed on in the feces and get into the water supply "Waterborne Diseases". D. Bacteria, viruses, protozoa, metazoa and fungi - ANSWER -Microorganisms are important from a heath standpoint & in the process of sewage digestion. They can include ______. A. Bacteria, protozoa and Fungi B. Bacteria, viruses and Metazoa C. Viruses and Fungi D. Bacteria, viruses, protozoa, Metazoa and Fungi Helminths - ANSWER -Associated with and found in untreated sewage. Includes hook worms, round worms and tape worms. Nitrates - ANSWER -____ May enter the water from various sources. "Methemoglobinemia" serious sometimes fatal poisoning of infants. False- Illegal - ANSWER -Cesspools, bone homes and injection wells are legal in Texas C. Physical, chemical and bacteriological - ANSWER -The characteristics of wastewater can be divided into ______ areas. A. Chemical B. Bacteriological C Physical, chemical and bacteriological D. Chemical and bacteriological A. Total Suspended Solids (TSS) - ANSWER -Can be filtered out and are termed ____. A. Total Suspended Solids (TSS) B. Total Dissolved Solids (TDS) C. Total Solids (TR) B. Total Dissolved Solids (TDS) - ANSWER -Cannot be filtered and are dissolved in the water or in solution. A. Total Suspended Solids (TSS) B. Total Dissolved Solids (TDS) C. Total Solids (TR) C. Total Solids (TR) - ANSWER -Are all the solids present in wastewater, regardless of form or composition after evaporation of the water. They leave a residue called Total Residue. A. Total Suspended Solids (TSS) B. Total Dissolved Solids (TDS) C. Total Solids (TR) True - ANSWER -True or False: The formula for Total Residue is: TSS(mg/L) + TDS(mg/L) = TR(mg/L) True - ANSWER -True or False: Settleable Solids (SS) are Suspended solids of sufficient size and weight to settle out when left standing for a time. (Mi/L) True - ANSWER -True or False: Stay suspended due to being extremely small (Colloidal), lighter than water or have an electrical charge which prevents clumping & settling. B. Biochemical Oxygen Demand (BOD) - ANSWER -Measures the oxygen depleting effect of wastewater Should be thought of as a measure of the sewage strength A. Organic Materials B. Biochemical Oxygen Demand (BOD) C. Aerobic Bacteria D. Anaerobic Bacteria