Download TCEQ Surface Water B License Test with Questions & Answers| Guaranteed pass|2025-2026 and more Exams Water and Wastewater Engineering in PDF only on Docsity!
TCEQ Surface Water B License Test with
Questions & Answers| Guaranteed pass|2025-
When pressure testing a new line, how much pressure do you add? 1.5 times normal pressure, up to 150 pounds, whichever is greater What would cause a repeat Bac-T sample? Incomplete form, not enough sample, silt or slime in the bottle, positive e-coli, all of the above What are the layers of stratification? Upper layer - Epilimnion. Middle layer - Thermocline. Bottom Layer - Hypolimnion. What standard must bleach meet? NSF (National Sanitation Foundation) What is the Solid contact unit? Also known as a Sludge blanket unit, it is an all-in-one unit, handling mixing, flocculation and sedimentation, with an upward flow. What is the number one sludge removal process in Texas?
Lagooning/Lagoons. What are the Log removals for cryptosporidium, giardia and viruses? Cryptosporidium - Log 2, 99%. Giardia - Log 3, 99.9%. Viruses - Log 4, 99.99%. Which two filter membranes remove the most NTUs? RO (Reverse Osmosis), and Nano Filtration What are lime and soda ash used for removing? Hardness What purpose does aeration serve in the softening process? Releases CO2 which helps keep hardness in solution. What is the Jar Test Process? Unknown What can replace primary coagulation? Cationic polymers. What tells you that the chloramine ratio is off? The presence of di and tri chloramines, and excessive free ammonia. What is the Right to Know law?
pH What is soda ash used for in the water treatment process? Adjusting pH What is the maximum flow rate through a sand filter? 2 - 4 GPM/ft What is the minimum pressure in a distribution system? 20 psi What safety devices are required for chlorine cylinders? Fusible plug safety device designed to melt at 158-165 degrees Fahrenheit What are the hazards associated with dust? Inhalation and explosion What are the safe chlorine withdrawal rates for pressure or vacuum? 150 pounds or One ton What changes must be reported to TCEQ?
Changes in water source, change or alteration to the system, alteration or addition to the treatment facility, a new system or facility is to be built, changes in water quality, water supply health hazards How does having a good safety program help? Protect everyone Where would you suspect high THMs? The far reaches of the distribution system What are the MCL for disinfection byproducts? TTHM (Total Trihalomethanes) .08 mg/L, HAA5 (Haloacetic Acid) .06 mg/L What is fluoride? No answer provided What are examples of community waters? No answer provided What is a community water system? Supplies water year-round to at least 25 people. What are non-community water systems?
1.0 mg/L. What is the MCL for nitrate? 10 mg/L. What is the MCL for total nitrite and nitrate? 10 mg/L. What percentage of fatalities in confined spaces involve would-be rescuers? 60%. What are the chlorine disinfection rates for new mains and emergency repairs? 25 mg/L for 24 hours with a residual of 10 mg/L, 100 mg/L for 3 hours with a minimum residual of 50 mg/L, 300 mg/L for 15 minutes with a minimum residual of 100 mg/L. What is water horsepower? Horsepower/output delivered by the pump impeller. What are the four zones of a settling basin? Inlet, settling, sludge, outlet. How are metals removed in typical water treatment methods?
They are not removed unless precipitated from coagulation or absorbed by activated carbon. What do cationic polymers produce? Large molecules with many positive ions. What is the function of anionic polymers? To neutralize positive charges with their negative charges. What is the function of nonionic polymers? To perform the same function as both cationic and anionic polymers. What is charge neutralization? The process of reducing or neutralizing negative colloidal charges using cationic polymers in small dosages. What is the source of information for the term 'Charge Neutralization'? Surface Water 2, Page 2-12.
