Luckyexams

Wet tap - ANSWERA connection made into a main that is full or under pressure is a Cross connection - ANSWERA connection between a safe and an unsafe water supply is called a Is available for use without causing shortages during dry periods - ANSWERSafe yield of a water source is the quantity of water which: Rate of flow of water - ANSWERA Venturi tube increases the velocity and decreases the pressure as water flows through it. This type of tube is used to measure the: Underground str...

A noisy or vibrating valve may be an indication of what? - ANSWERCavitation The selective destruction or inactivation of pathogenic organisms is - ANSWERDisinfection Pathogenic organisms can be removed from water, killed, or inactivated by - ANSWERFiltration The most commonly used distribution system disinfection is - ANSWERFree chlorine A greenish- yellow gas with a penetrating and distinctive odor, two and a half times heavier than air is - ANSWERChlorine A brief session to disc...

What do water distribution system operators have the responsibility for? - ANSWERThe health and well-being of the community they serve Frequently the water supplier tries to maintain specific minimum target __________________ throughput the distribution system. - ANSWERWater pressure (20 PSI minimum) All trenches and excavations are unsafe until... - ANSWERProper shoring, used, and back filled Can the quality of water coming out of the consumers tap can be affected by what happens to th...

A fluids resistance to moving through the piping system? - ANSWERflow resistance Name four categories of water supply systems - ANSWER1. surface water 2. ground water 3. purchased water 4. rural water .... supply systems Name three classifications of distribution system layouts - ANSWER1. arterial loop system 2. grid system 3. tree system Where in the distribution system should shut off valves be? - ANSWERAt regular intervals and at all branches from the arterial main. Also, where...

Head is measured in - ANSWERfeet A plat is - ANSWERA map Which type of valve will prevent the collapse of a pipe - ANSWERAir-and-vaccume relief valve The highest degree of protection of a coated steel pipe is - ANSWERcathodic protection At which time of day is the age of the water stored in the distribution system the highest? - ANSWERIn the morning One of chlorines advantages is that it - ANSWERhas a persistent residual Chlorine gas is _____ times heavier than air. - ANSWER2.5...

Why does water move through level pipes? - ANSWERit accelerates towards lower pressure how can you produce pressurized water? - ANSWERpush inward on the water, using a surface - confine and squeeze it as you push inward on the water - ANSWER- it pushes outward on you you do work as you pump water into the pipe - ANSWERwork = pressure x volume - the pressurized water carries your work w/it - PPE (pressure x volume) where does the work you do pumping water go? - ANSWERto the water a...

How many gallons of water per day does the average American family of 4 use? - ANSWER320 gallons Most of Earth's water is _____. - ANSWERunsuitable for drinking most of earths freshwater is______ - ANSWERStored in glaciers and ice caps most saltwater use is____ - ANSWERthe power generating industry scarcity - ANSWERstate of not having enough of something Groundwater_________ - ANSWERthe largest available source of freshwater How much of earths ice is located in Antarctica? - A...

What kind of molecules can greatly inhibit protein molecules from bonding with each other and with water, leading to the reduction of foam's volume and stability? - ANSWERFat What colors are created by anthocyanins? - ANSWERRed and Blue What is Cola an example of? - ANSWERHomogeneous Mixture What does the common food additive, potassium sorbate, function as? - ANSWERMold Inhibitor What molecule is a polar covalent compound commonly referred to as the "universal solvent"? - ANSWERW...

Approximately how many gallons of blood pass through the udder for each gallon of milk produced? - ANSWER400-500 gallons What percentage of whole milk is fat when compared on a dry matter basis? - ANSWERAbout 25 percent All milking equipment must be sanitized: - ANSWERAfter each use When doing classification scoring, when a cow is given the numerical value of 85-89.9 is classified as: - ANSWERvery good A babcock test may be used to measure the ______________ % of milk. - ANSWERfat ...

What is a major reason for controlling the use of antibiotics with lactating dairy cows? - ANSWERAntibiotics may be found in milk many hours after treatment. Why is the California Mastitis test done? - ANSWERTo determine whether the cow's mammary gland is inflamed or infected. Estimate white blood cells and other body cells in milk. What are some materials that accumulate on filter pads during the sediment test of milk? - ANSWERInsoluble extraneous matter, clots of milk from mastitic mam...