Components Review Questions

Components Review Questions Water for Irrigation What is the most expensive water to use? What are the advantages of potable water? What water source requires extra filtration? How do we capture groundwater? Is groundwater all the same quality? Other than tap water which water is sometimes considered potable? What water sources do you need a license for? Which water source may require aeration? What is the difference between a natural pond and a stormwater pond?How do we prevent stormwater from going into groundwater? Which water source(s) tend to fluctuate? When capturing rainwater what is the cleanest source? How does the irrigation industry indicate non-potable water is being used?Is reclaimed water ready to use for irrigation? What type of water has to be used within 24-hours? What type of water can only be used for subsurface irrigation? System Types Definition of a Block System What system takes lots of manpower to operate? What system is the most efficient? What system is often used in golf courses? What system allows you to isolate a whole area of sprinklers? POC/ BFPD What is the purpose of installing a BFPD? What BFPD has to be installed on the sprinkler side of the system?What BFPD is specified most in Alberta municipalities? What BFPD’s cannot be pressure checked? What BFPD’s have to be installed above the highest sprinkler? What BFPD is the best? Sprinklers What sprinkler is used for smaller areas? What sprinkler type has lower precipitation rates? What sprinkler has to operate off higher pressures? What sprinkler type has higher flow rates? What type of sprinkler is easiest to maintain? What sprinkler type comes with a nozzle tree? What sprinkler type can be gear driven or impact driven? What is a PRS sprinkler? What does purple indicate on the cap of a sprinkler What is the purpose of a check valve in the bottom of a sprinkler? How does a variable arc nozzle differ from a fixed spray nozzle? How does a rotator differ from a fixed spray nozzle? What is the formula for the precipitation rate of a full circle sprinkler spaced in a square pattern? What is the formula for a triangular pattern? What is the formula for a part circle sprinkler? Square spacing Piping What type of pipe is used for situations where cultivating is needed? What type of pipe has the lowest friction loss? What type of pipe is the most flexible? What type of pipe is subjected to frost cracking? What type of pipe has the highest pressure rating? What type of pipe uses insert fittings? What type of pipe can only handle lower pressures? What type of pipe is joined by fusion welding? What type of pipe is measured by outside diameter? What type of pipe will often leak before being pressurized? What type of pipe is glued together?solvent weld What is the SDR rating on the pipe? What does the 04 in PE 1404 indicate? What does Class 160 or Series 160 on PVC pipe indicate? What is less damaging to the landscape - a trencher or a vibratory plow? Hydraulics What 2 pieces of information do you need to size a pipe? What do you need to determine the friction loss in a pipe? How do you calculate static pressure? What is the Feet of head per 1 psi? Dynamic pressure is determined by….. Pumps Which pump may require priming? Which type of pump has the motor above water and the bowls in the water? Which type of pump is used for larger flow and pressures? Which of the 3 pumps listed is the most efficient? Which pump can be laid down horizontally in a pond or other body of water? Which pump sits above the surface of the water and only has the intake in the water? Which pump has the motor below the pump? Which of the following usually pumps from a wet well? Which addition to a motor will help the motor ramp up or down according to need rather than running at full speed? What is it called when damage or pitting to the impeller of a pump is caused by low pressure around the impeller? What can you do to prevent this? If you want to increase flow would you install your pumps in parallel or in series? What if you want to increase pressure, would you install your pumps in parallel or in series? What type of information can you get off a pump performance chart? What information do you need to calculate TDH from the pump? Valves What is the purpose of a bleed screw in an electric controlled valve? What is the purpose of the flow control knob? How does an electric control valve operate? How is pressure relieved off the upper chamber? What blocks the bypass port? How does water get to the upper chamber? What happens to the sprinklers if the inlet port is plugged? What manual valve is used for larger pipe sizes? Controllers Where is the transformer on an outdoor controller? What voltage does the transformer transform down to? What does C mean on the terminal strip? What colour is standard for the common wire in irrigation? What are the coloured wires called? How is a valve wired? What type of programming is used on small residential controllers? How are wire splices protected in an irrigation system? What type of sensors can be installed in an irrigation control box? Pressure regulation/ filters What three areas can filters be installed in an irrigation system? What is the least expensive filtration system? What system should only be used for organic contaminants? What system is used to remove mineral contaminants? What system(s) are self flushing? Where can pressure be regulated in a system? Where is the best place to regulate a sprinkler zone? What happens to a sprinkler pattern if the pressure is too high for the nozzle? What happens if the pressure is too low for the nozzle? Micro systemsWhat would you use in a shrub bed if all plants have different water requirements? What would you use for a row crop where all plants are the same? What is a root feeder for? What is the difference between drip tape and drip tubing? What spacing of drip tubing would you buy for a clay soil? How would this compare to a sandy soil? What extra components do you add to the start of a micro system?