Term 1 of 352
What is the maximum acceptable velocity of water in PVC piping?
6 FPS
10 FPS
5 FPS
9 FPS
Term 2 of 352
An automatic timing device, which signals the automatic valves to open or close according to the
prescribed program. Because of current technological advances, --- have expanded from very
simple mechanical devices to very sophisticated central control units that operate numerous
satellite units in the field. Wireless automatic systems are emerging and PC irrigation --- interface
hardware and software solutions are becoming the standard for city parks, golf, and commercial
sites.
Booster Pump
Swing joint
Normally Closed Valve
Controller
,Term 3 of 352
A system where control valves are operated manually
Manuel System
Zone
Manifold
Reduced Pressure Principle Assembly (RPPA)
Term 4 of 352
Any device that introduces air into the system to prevent "back siphonage."
Anti-Siphon Device
d. a digital multimeter
Automatic Control Valve
Gallons per minute
Term 5 of 352
Used when working with low-volume irrigation systems such as with drip irrigation
Root Zone
e. B & D
GPH
d. A & C
,Term 6 of 352
Size or dimension of piping
ID - iside diameter
OD - outside diameter
Diameter
Spacing
d. the arc
d. mulching
Term 7 of 352
A measure of the rate of change of elevation over a prescribed distance. --- may be expressed as
a ratio, a grade, or as a percent.
d. PVB
Slope
d. PVC
Solvent
Term 8 of 352
Poly Vinyl Chloride represents what type of irrigation piping?
Poly
Steel pipe
Copper pipe
PVC
, Term 9 of 352
A form of back flow due to negative or sub-atmospheric pressure within the water system. A
break in the city main line or a fire department utilizing excessive water to fight a nearby fire
could both induce a ----
Contour line
Backsiphonage
Backpressure
e. B, C, and D
Definition 10 of 352
Rain Sensor
The pressure of water when it is not moving. Measured in PSI
Instrument that measures rainfall and shuts the system off at a pre-set amount of rain
A mechanical device used to measure the flow of water
Piping between the remote control valve, not subject to constant main line pressure, and
the sprinkler heads
Term 11 of 352
A pump which is installed in the water supply line and is designed to raise the pressure in the
irrigation system
Slip Fitting
Booster Pump
Transpiration
Pressure Relief Valve
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