Beckham

What are the steps of the Water Use Cycle? - correct answer Environment --> Water Treatment --> Water Distribution System --> Customer Use --> Wastewater Collection System --> Wastewater Treatment --> Environment What are the benefits of the collection system? - correct answer - Removal of health hazards - Prevention of odors and flies - Cleanliness and appearance - Comfort and convenience Septic vs. Fresh wastewater? - correct answer Septic wastewater doesn't conta...

A disease that cannot be contracted by drinking contaminated water is: - correct answer Malaria A non-permit confined space by OSHA standards means a confined space that: - correct answer Does not contain or have the potential to contain any hazard capable of causing death When used in connection with the Safe Drinking Water Act, the term "MCL" means: - correct answer Maximum Contaminant Level Examples of non-community water systems include: - correct answer Highway rest areas ...

Who has the responsibility to provide drinking water that meets federal and state standards? - correct answer Operators ____________ must be disinfected, delivered at adequate pressure, and be ample in quantity. - correct answer Water _____________ should guard the water supply and facilities from contamination and even terrorism. - correct answer Utility employees The ______________ requires bacteriological sample results be kept 5 years. - correct answer State The ____________ requ...

What causes carbonate hardness? - correct answer Magnesium Bicarbonate What are the detention times for setting basins? - correct answer 6 hours for normal, 4.5 for Softening What type of reaction is coagulation? - correct answer Chemical and physical What does the reaction of Alum or iron compounds with natural alkalinity in water form? - correct answer Insoluble Hydroxide (Floc) What is the maximum number of connections for a 2-inch line? - correct answer 10 What is the use of p...

What is the purpose of nonionic polymers? - correct answer Filter aids Where do humic and fulvic acids come from? - correct answer Natural Organic Matter (NOM) decay What can chlorine oxidize? - correct answer Iron, manganese, and microorganisms At what pH range does iron react best? - correct answer 7.5-8.0 At what pH range does manganese oxidation occur best? - correct answer 9.0-10.0 What is required in a chlorine room with more than one 150-pound cylinder? - correct answer Hig...

When pressure testing a new line, how much pressure do you add? - correct answer 1.5 times normal pressure, up to 150 pounds, whichever is greater What would cause a repeat Bac-T sample? - correct answer Incomplete form, not enough sample, silt or slime in the bottle, positive e-coli, all of the above What are the layers of stratification? - correct answer Upper layer - Epilimnion. Middle layer - Thermocline. Bottom Layer - Hypolimnion. What standard must bleach meet? - correct answer N...

What is the most important factor affecting the useful life of service lines? - correct answer It is the ability of the material to resist internal and external corrosion When does Suction Head exist? - correct answer Suction head exists when the source of supply is above the centerline of the pump. What is Net positive Suction Head (NPSH) - correct answer NPSH is the pressure under which water enters the eye of the impeller in a centrifugal pump. Insufficient NPSH is the main cause of pum...

AN ENGINE BRAKE (JACOBS BRAKE) - correct answer A. IS A SELF-ENERGIZING SERVO TYPE. B. IS NORMALLY USED IN PLACE OF A SPRING BRAKE. C. RESTRICTS THE INTAKE PORT AND CAUSES A BUILD UP OF 30-45 LBS OF PRESSURE. D. OPENS THE EXHAUST VALVES NEAR THE TOP OF THE COMPRESSION STROKE TO RELEASE THE COMPRESSED AIR. (CORRECT AWNSER) IN THE SYSTEM SHOWN BELOW, THE PART AT C IS: - correct answer A. AN INVERSION VALVE. (POSSIBLE CORRECT AWNSER) B. A SAFETY VALVE. C. A MODULATOR VALVE. (NOT CORRECT AWN...

What are the key components in an EVAP system? - correct answer Fuel Tank, gas cap, lines/hoses, and charcoal canister Catalytic Converter: - correct answer Oxidizes NOx into CO and HC When testing a connector what is an acceptable reading? a.) 1V from ground side b.) 1V from positive/reference side c.) .5V from at each connector d.) 1.5v from sensor harness - correct answer C An oxygen sensor is reading 400mv, what would this indicate - correct answer lean condition What increas...

After installing a new battery how long should you wait to allow for pcm time - correct answer no need to wait As blower motor speed decreases the voltage drop across the resistance block.... - correct answer increases What should you do first when replacing junction block or fuse? - correct answer Unlock the battery ground cable The polarity of the voltage applied to the electromagnetic coils of an actual working DC motor is.... - correct answer a commutator When performing a volt d...