Random 1
What is an important design feature that will result in an irrigation system operating more efficiently
Uniformity
Adjustable spray heads are best used in areas that have
odd and varying shaped areas
What is the first thing you do at a customers house after you meet the homeowner ?
Start a FULL INSPECTION
What are the 4 Most Common Backflow Prevention devices
AVB,PBB,RPZ,DCA
What is the first thing you check once you reach the controller?
The Wires
If the width and length of a property ( with turf ) are 50 ' by 75 , respectively , what type of sprinkler head would generally work best ?
Rotary heads
Diffusion of spray and rotary sprinkler heads should not exceed
25-30 %
Water loss in plant material is a result of
Evapotranspiration
How do you determine slope
Rise divided by run
Which Sprinkler Head Nozzle Provides the most Efficient Coverage?
Rotary Nozzle
How much Clearance is required underneath a double check by TCEQ Standards That is Smaller than 2inch
12 inches
Why should you never mix different types of sprinkler heads ( for example : spray with rotors ) on the same zone ?
The precipitation rates are different
The weight of one gallon of water
8.3 pounds
Maximum acceptable velocity of water in PVC
5 FPS
Any actual or potential connection between a potable water supply and any source of contamination or pollution.
Cross Connection
What type of irrigation would be used if you are watering a narrow parkway with turf measuring less than 48 Inches by 60 feet ?
Drip Irrigation
landscape irrigation as we know it has been around since when?
turn of the 20th century
What type of valve would be installed to offer water to a remote location?
quick coupler valve
For an irrigation system to work, actual head pressure has to be
equal to, or greater than minimum head pressure
What time are you suppose to show up at your 1st job?
9am
A graphic representation of precipitation is called
A densogram
What is the best type of head spacing?
Triangular
Irrigation dates back to when
thousands of years
What is not needed to determine available water capacity
size of city water main
What action will distribute water horizontally in the soil?
Capillary Action