Waters - Study guides, Class notes & Summaries

hat the 4 stages of the Chlorine Demand Curve chart? - Stage 1: No residual is formed because inorganic demand destroys the chlorine. (Flat Line) Stage 2: Monochloramines are formed as chlorine combines with organics containing ammonia (rising curve). The chlorine to ammonia weight ratio at this point is 5:1. Combined and total residual increases, chloro-organics are formed. Stage 3: Increasing chlorine dosage (failing curve) to a chlorine/ammonia weight ratio of 7.6:1 destroys chloramines...

Water Distribution 1 Questions and Answers 100% CorrectWater Distribution 1 Questions and Answers 100% CorrectWater Distribution 1 Questions and Answers 100% CorrectWater Distribution 1 Questions and Answers 100% CorrectHead is measured in - ANSWER-feet A plat is - ANSWER-A map Which type of valve will prevent the collapse of a pipe - ANSWER-Air-and-vaccume relief valve The highest degree of protection of a coated steel pipe is - ANSWER-cathodic protection At which time of day is the...

PADI, Open Water Diver, Final Exam Review Questions And Answers All Verified D float. Salt water is heavier than freshwater because it has dissolved minerals in it. This means it causes more upward force (buoyancy) on an object. An object that is neutrally buoyant in fresh water would float in salt water because there is greater upward force. See Being a Diver I - Buoyancy and Controlling Buoyancy. - ANS 1) If an object is neutrally buoyant (does not sink or float) in fresh water, the...

Which of these surface temperatures would promote the most rapid evaporation? A. 60 degrees B. 70 degrees C. 80 degrees C. 80 degrees Which of these surface temperature would have the fastest rate of evaporation? A. 10 degrees below dew point B. 20 degrees above dew point C. 30 degrees above dew point C. 30 degrees above dew point (the higher the better) If a material is not drying well, what would be the most effective method of increasing evaporation? A. Use air filtration B....

Nicet Level 1 Water Based Layout Exam Practice Questions and Answers | Verified and Updated Toggle hangers shall be permitted only for the support of pipe __________ inches or smaller in size under ceilings of hollow tile or metal lath and plaster. - Correct Answer️️ -1 2/2 in. (ref. NFPA 13 2016 Sec. 9.2.1.1.2. While conducting a flow test, the chosen hydrant should be ______ - Correct Answer️️ -As close to the property where the sprinkler system is being installed. (Ref, NFPA 1...

NAUI Scuba Diving Open Water Exam With 100% Correct Answers 2024

Seeding of BOD samples is necessary when samples - (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? - Summer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe is 3.14x1.25 x 1.25 x 2 = 4.9 cfs x 449 =...

What is the most important factor affecting the useful life of service lines? - Answer It is the ability of the material to resist internal and external corrosion When does Suction Head exist? - Answer Suction head exists when the source of supply is above the centerline of the pump. What is Net positive Suction Head (NPSH) - 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 pump cavitation Ex...

NH PESTICIDE STUDY GUIDE WITH COMPLETE SOLUTIONS 100% Where can you find the pesticide setback distances from wells and surface waters? - correct answer Applying setback: Gravel Packed Public Well - correct answer 400 feet Applying setback: Non Gravel Packed Public Well - correct answer 250 feet Applying setback: Public Water Supply Within Watershed out to 5 miles - correct answer 250 feet Applying setback: Public Waters - correct answer 50 feet Applying setback: Non Public Wa...

The homeowner - ANSWERis responsible to take the necessary steps to preserve and protect their property from further damage Four principles of water damage restoration: - ANSWERProvide for health and safety of workers and occupants; Document everything; Mitigate, and Dry Four principles of drying - ANSWERExtract, Evaporate, dehumidify, control temp Extraction - ANSWERis removing excess water and is the first step in mitigation Evaporation - ANSWERis achieved by using energy (heat) to...