IRRIGATION Flashcards
A 3/4” service line and a 5/8” water meter at 45 psi static pressure will supply a volume
of U.S. gallons per minute.
A 3/4” service line and a 5/8” water meter at 45 psi static pressure will supply a volume -
of 7 US gallons per minute
What is the increase in available water supply in US gallons at 55 psi if a 3/4” water
service has 5/8” water meter replaced with a 3/4” water meter?
2Usgpm
Define static pressure
Static pressure is the pressure within a building when no water is flowing
What is the difference between static and dynamic pressure?
Static pressure is the pressure within a building when no water is flowing, while
dymanic pressure is the measurement of pressure while water is flowing
An alternative method of determining available water supply, rather than using
water meter and service pipe sizes, is the
An alternative method of determining available water supply, rather than using the
water meter and service pipe size, is the bucket test.
The device that activates the control valve is the, or
The device that activates the control valve is the control panel or timer
All heads that are used on one zone should be:
a) popup style
b) geardrive
c) the sametype
d) the same flowrate
c) the same type
To determine the layout of the heads within the imgation system, prepare a
showing the locations of buildings, sidewalks, driveways and areas
to be irrigated.
To detemine the layout of the heads within the irrigation system, prepare a “site”
drawing showing the locatious of buildings, sidewalks, driveways and areas to be
irrigated
When irrigation heads are installed for a vegetable garden, the heads should be
placed on
foliage.
to prevent interference with the spray pattern by the plant
When irrigation heads are installed for a vegetable garden, the heads should be
placed on RISERS to prevent interference with the spray pattern by the plant foliage
The two most common piping materials used for irrigation systems are
for manifolds and for laterals.
- The two most common piping materials used for irrigation systems arePVC for
manifolds and POLYURATHANE for laterals
Control valves used with a timer are referred to as either or
valves
Control valves used with a timer are referred to as either ;electronic or solenoid;
valves.
Irrigation system layout and design should allow for winterizing of the system through the placement of at the lowest points or with
the removal of water through the heads with the use of
Imgation system layout and design should allow for the winterizing of the system
through the placement of ‘drain valves’ at the lowest points or with the removal of
water through the heads with the use of ‘compressed air’
A/an head is commonly used in flowerbeds and planters at the lowest points for spot watering.
A BUBBLER head is commonly used in flowerbeds, planters and for spot watering
A/an head moves by the water passing through the head, driving gears that propel the head.
A ROTATING head moves by the water passing through the head, driving gears that
propel the head.
A/an head moves by the water passing through the head, hitting a trip arm that propels the head
An IMPULSE head moves by the water passing through the head hitting, a trip arm that
propels the head.
