Installation Flashcards
Section 2 of exam
When calculating the available water capacity of an irrigation site, irrigators refer to that amount in
GPM [2]
- When using drip irrigation, the water volume of individual drip emitters is generally expressed in:
GPH
An irrigator is required to maintain records of irrigation installations for a period of:
3 YEARS
A licensed irrigator inspector cannot engage in irrigation services that include: A licensed irrigator inspector cannot engage in irrigation services that include:
a). Selling b). Designing c). Installing c). Repairing d). All of the above
d). All of the above
Landscape irrigation, as we know it, has been around since:
a). The 1930’s
b). Since the development of PVC pipe
c). The beginning of time
d). The turn of the 20th century
d). The turn of the 20th century
For an irrigation system to work, actual head pressure has to be:
a). Less than minimum head pressure
b). Equal to minimum head pressure
c). Greater than minimum head pressure
d). Equal to, or greater than minimum head pressure
a). Less than minimum head pressure
Which of the following describes the rate at which water is applied by sprinkler heads in a certain pattern:
A)Precipitation rate
b). Infiltration rate
c). Application rate
d). Percolation rate
e). A & C
A)Precipitation rate
Static Pressure minus total pressure losses equals:
DESGIN PRESSUIRE
b). Actual head pressure
c). Minimum head pressure
d). Pressure to design to
b). Actual head pressure
The arc is defined as the:
a). Application rate
b). Percolation rate
c). The trajectory of sprinkler heads
d). Degrees of coverage of a sprinkler from one side of a pattern to the other side.
d). Degrees of coverage of a sprinkler from one side of a pattern to the other side.
A timing device which signals the automatic valves to open close is ?
A). An Irrigation timer
b). A Clock
c). An Irrigation controller
d). All of the above
d). All of the above
- Design pressure is:
a). Static pressure plus the total of all pressure losses
b). Static pressure minus the total of all pressure losses
c). Minimum head pressure plus the total of all pressure losses
d). Minimum head pressure minus total of all pressure losses
c). Minimum head pressure plus the total of all pressure losses
The flexible portion of the remote control valve which regulates the passage of water through the valve is called.
a).diaphragm
b). The solenoid
c). The flow control
d). External manual bleed
a). A diaphragm
. To gain .866 PSI, your piping would have:
. A) Elevation gain of one foot
b). A pump installed
c). Increased water speed
d). Elevation loss of two feet
d). Elevation loss of two feet
loss of .433 PSI is a result of:
a). A piping elevation loss of 1 foot
b). A restriction in the line
c). An piping elevation gain of 1 foot
An elevation gain or loss in the piping
c). An piping elevation gain of 1 foot
An elevation gain or loss in the piping
A method of maintaining a constant discharge pressure regardless of inlet pressure is called
a). A pressure relief valve
b). Optimum pressure at the head
c). Pressure compensating
d). Minimum head pressure
c). Pressure compensating
Calculating and managing the time and amount of water to apply to the plant material is referred to as:
a). Scheduling
b). Management of water
d). Water application
d). Programming
a). Scheduling
Which represents matched precipitation rates?
a). full, half, quarter circle all 4 GPM
b). quarter circle 2.5 GPM, half circle 5 GPM, full circle 10 GPM
c). all heads, regardless of pattern, throwing the exact GPM
d). quarter heads 1 GPM, half heads 2 GPM, full heads 3 GPM
e). None of the above
b). quarter circle 2.5 GPM, half circle 5 GPM, full circle 10 GPM
- Increased pressure at the head will result in:
a). Damage to the head
b). Better performance
c). An increase in GPM and radius
d). A decrease in radius and increase in GPM
c). An increase in GPM and radius
- Bubblers would need to be installed in an area that is:
a) For trees
b). On a slope
c). Level and bordered
d). Very small
c). Level and bordered
- A filter, flush valve, and pressure regulator would typically be used with:
a). Flood bubblers
b). Drip irrigation
c). Micro-sprays
d). Rotary sprinklers
b). Drip irrigation
- What does a check valve do?
a). Allows water to go in only one direction
b). Checks for breaks in the lines
c). Monitors water usage
d). Allows water to shut off in case of a break
a). Allows water to go in only one direction
What types of copper pipe are available and which has the heaviest wall thickness
a). K, M, and O with all the same thickness
b). K, L, and M with K having the heaviest wall thickness
c). K, L, and M with L having the heaviest wall thickness
d). Only K
b). K, L, and M with K having the heaviest wall thickness
How is the smoothness on the inside of the pipe rated?
a). A-factor
b). It is not rated
c). How long the pipe will last
d). C-factor
d). C-factor
- ET-based controllers regulate the irrigation schedule based on what?
a). Evaporation
b). Transpiration
c). Evapotranspiration
d). Federal watering guidelines
e). A, B, and C
e). A, B, and C
- How many members, licensed irrigators, and members that are representatives of the public does the irrigator advisory council have?
a). 9, 5, and 4
b). 9, 6, and 3
c). 6, 3, and 3
d). 10, 5, and 5
b). 9, 6, and 3
- How ❏❏ many hours of CEU’s does a licensed irrigator need to renew his/her three year license?
a). 8
b). 12
c). 24
d). 16
c). 24
- Which of the following is not acceptable?
a). Threading a plastic fitting into a metal fitting
b). Threading a metal fitting into a plastic fitting
c). Threading a metal fitting into a metal fitting
d). Threading a plastic fitting into a plastic fitting
b). Threading a metal fitting into a plastic fitting
What happens if two different types of metal pipes are connected together?
a). Electrolysis
b). A pressure problem
c). Contamination
d). Pollutionff
a). Electrolysis
Which devices can stop backpressure?
a). PVB, DCA, RP, and AVB
b). RP, DCA, and PVB
c). AVB and PVB
d). PVB and DCA
e). DCA and RP
e). DCA and RP
Which devices can handle constant pressure?
a). PVB, DCA, RP, and AVB
b). DCA and RP
c). RP, DCA, and PVB
d). AVB and PVB
e). PVB and DCA
c). RP, DCA, and PVB
The approved backflow devices for non-health hazards include:
a). AVB & RP
b). RP, DCA, and PVB
c). AVB and PVB
d). PVB and DCA
e). All devices (AVB, PVB, DCA, and RP)
e). All devices (AVB, PVB, DCA, and RP)
If there is an on-site sewage facility on site, which backflow is approved?
a). AVB
b). PVB
c). DCA
d). RP
e). B & C
d). RP
If major maintenance has to be performed, which backflow device has to be properly installed prior to the repair work being performed?
a). An approved backflow device
b). PVB
c). DCA or PVB
d). RP
e). B & C
a). An approved backflow device
If a DCA is installed below ground, what device is required?
a). A filter
b). A flush valve
c). A pressure regulator on the downstream side of the DCA
d). A Y-Strainer installed on the inlet side of the DCA
e). Installing at least 12” deep
d). A Y-Strainer installed on the inlet side of the DCA
If there is an additional water source supplying water to a system being supplied by a potable water supply, what device has to be used on with the potable water supply?
a). AVB
b). PVB
c). DCA
d). RP
e). C or D
d). RP