Name: Score:
20 Multiple choice questions
Term 1 of 20
The basic reason drip irrigation is very successful for plant growth is:
Soil moisture content can be kept at a relative constant and proper level.
erosion control
dust reduction
irrigating any type of landscape vegetation in any location
go through the re-examination process again.
Water will escape through the top portion of the device
Term 2 of 20
Corrosion caused when two dissimilar metals come in contact with each other.
Electrolysis
dry line shock
Velocity.
Precipitation rate
Term 3 of 20
Actual head pressure is =
Reduced pressure principle
suitable for human consumption
Has a working pressure rating of 315 psi
Static pressure _ Total losses
, Term 4 of 20
after a license has expired, the only way to obtain another one is to ?
go through the re-examination process again.
erratic head spacing
head pressure
nozzle size
There are no shut - off valves
5 circuit wires and 1 common.
Term 5 of 20
the licensed irrigator should base his design on _____.
Average nighttime wind speeds
Back pressure and Back siphonage
Control valve immediately downstream
Water hammer
Term 6 of 20
Over sizing piping result in ______.
none of them
The nominal size.
4 test cocks
More expense
20 Multiple choice questions
Term 1 of 20
The basic reason drip irrigation is very successful for plant growth is:
Soil moisture content can be kept at a relative constant and proper level.
erosion control
dust reduction
irrigating any type of landscape vegetation in any location
go through the re-examination process again.
Water will escape through the top portion of the device
Term 2 of 20
Corrosion caused when two dissimilar metals come in contact with each other.
Electrolysis
dry line shock
Velocity.
Precipitation rate
Term 3 of 20
Actual head pressure is =
Reduced pressure principle
suitable for human consumption
Has a working pressure rating of 315 psi
Static pressure _ Total losses
, Term 4 of 20
after a license has expired, the only way to obtain another one is to ?
go through the re-examination process again.
erratic head spacing
head pressure
nozzle size
There are no shut - off valves
5 circuit wires and 1 common.
Term 5 of 20
the licensed irrigator should base his design on _____.
Average nighttime wind speeds
Back pressure and Back siphonage
Control valve immediately downstream
Water hammer
Term 6 of 20
Over sizing piping result in ______.
none of them
The nominal size.
4 test cocks
More expense
