Texas Irrigation Technician Exam Questions and Answers (Verified Answers)
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Course
Texas Landscape Irrigation
Institution
Texas Landscape Irrigation
Texas Irrigation Technician Exam Questions and Answers (Verified Answers)
Who composes the Irrigator Council?
6 Irrigators, 3 Public members, all from the same state
What is the purpose of the Irrigator Council?
Provide advice on matters concerning irrigation
Possible consequence of in...
texas irrigation technician exam questions and ans
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Texas Irrigation Technician Exam
Questions and Answers (Verified
Answers)
Who composes the Irrigator Council?
6 Irrigators, 3 Public members, all from the same state
What is the purpose of the Irrigator Council?
Provide advice on matters concerning irrigation
Possible consequence of installing a system w/o a license?
Being charged with a Class C misdemeanor
Absorption Rate
How fast a rate at which the soil will accept water
Actual Head Pressure
The operating pressure measured at the base of a sprinkler head
How to CALCULATE Actual head pressure?
subtract all pressure losses from static pressure
air gap
A complete physical separation between the free flowing discharge end of a potable water supply
pipeline and an open or non-pressure recieveing vessel
Application Rate
Rate that a head applies water to the area it's spraying
What term is Application rate synonymous with?
Precipitation Rate
Arc
The surface area of the landscape that the head will provide water (half, full, 90, 25)
as-built plans
A corrected or redrawn plan, showing location of all major components of a system
A.W.W.A.
American Water Works Association
Backflow
The UNDESIREABLE reverse flow of water in a piping system
, Back pressure
Condition that can happen due to elevation pumps, pressure
Back siphonage
backflow due to a sub atomic pressure (break in city main, fire hydrant being used
Backflow prevention
A mechanical means to prevent a backflow
A backflow device
Any approved device that prevents an undesireable reversal of flow of water
1 column foot of water
.443 psi (pretty close to 5 ft.
1 psi
requires a column of water 2.31 feet tall (or 3 ft.) (or 27.75 in.)
max flowrate for 1/2 in pipe (to stay below 5 fps)
5 gpm
max flowrate for 3/4 in pipe (to stay below 5 fps)
10 gpm
max flowrate for 1 in pipe (to stay below 5 fps)
15 gpm
max flowrate 1 1/4 in. pipe (to stay below 5 fps)
25 gpm
max flowrate for 1 1/2 in pipe (to stay below 5 fps)
35 gpm
Key requirement for RPZ backflow
minimum of 12" above grade
Key requirement for Double Check backflow (DCVA)
If installed below grade, Test cocks must be plugged with non-ferrous (non-magnetic) material
Key requirements for PVB and SVB
Must be 12" above highest head, valve, pipe, fitting, or fixture
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