TCEQ IRRIGATION GENERAL INFORMATION WITH COMPLETE QUESTIONS AND CORRECT ANSWERS GRADED A+ Which has the highest precipitation rate? - correct answer Spray heads Which head spacing would provide the highest precipitation rate for any given property?

TCEQ IRRIGATION GENERAL INFORMATION WITH COMPLETE QUESTIONS AND CORRECT ANSWERS GRADED A+ Which has the highest precipitation rate? - correct answer Spray heads Which head spacing would provide the highest precipitation rate for any given property? - correct answer triangular head spacing precipitation rates from most spray heads: - correct answer exceed the infiltration rate in most tight soils Which soil type would hold the most water? - correct answer clay Which of the following would affect the precipitation rate of a rotary head? - correct answer erratic head spacing, head pressure, & nozzle size With most rotary heads, if you adjust the arc down the precipitation rate...? - correct answer increases With most rotary heads, if you adjust the arc down the discharge rate...? - correct answer remains the same True/False: rotary heads precipitate water more rapidly than any other type of head - correct answer False Irrigation heads should be selected ________ - correct answer To apply water equal to or slightly below the infiltration rate of the soil. frequent watering will result in: - correct answer shallow root system what is not ideal for dissolving surface fertilizer? - correct answer subsurface drip what is essential to prevent emitters from clogging? - correct answer filters This is it never acceptable to run drip lines and spray heads on the same valve? - correct answer The precipitation rates vary The licensed irrigator should base their design on: - correct answer average nighttime wind speeds Which piping on an irrigation system is under constant pressure? - correct answer Mainline A gate valve will have less or more pressure loss than a globe valve of same size? - correct answer less Sch 40 fittings can be solvent welded to: - correct answer sch 40, sch 80, class pipe Potable water is: - correct answer suitable for human consumption Which is correct to say about the 'c' value? - correct answer the lower the 'c' value the greater the friction loss The main design factor that affects the effectiveness of a sprinkler system is: - correct answer precipitation rate conventional spray heads have what type of spray pattern? - correct answer circular What would most be affected adversely by wind? - correct answer stretched head spacing T/F: a well designed rotary system can be just as efficient as a spray head system - correct answer true Which piping is resistant to UV light? - correct answer polyethylene tubing (drip) electric valves are classified as - correct answer normally closed The wire to a valve should be pulled fairly tight to prevent the wire from moving in the ditch. - correct answer False Which is larger wire, 18 gauge or 12 gauge? - correct answer 12 multi-conductor wire such as 18/6 has: - correct answer 5 circuit wires and 1 common Master valves are used to prevent velocities above 7ft/sec. - correct answer false Any connection to a potable water supply is considered: - correct answer cross connection Water has higher infiltration rates in what type of soil? - correct answer course, sandy soils The best measure of the amount of water that needs to be replaced by irrigation system is: - correct answer evapotranspiration rate