Texas Landscape Irrigator Exam
--- means that every one sprinkler heads within a watering sector will produce similar
precipitation costs, irrespective of the sample they cowl - ANS-Matched Precipitation (MPR)
A again flow prevention assembly that contains a spring-loaded check valve and introduces air
into the system to prevent "again siphonage". It carries using a spring-loaded seat for nice
establishing to ecosystem. This device should be mounted at least 12" especially downstream
piping and the best downstream outlet. It can operate below steady strain, however cannot save
you again pressure. This tool may be used for both pollution and contaminates and may be
used for fitness risk programs only in which there is no hazard of again pressure -
ANS-Pressure Vacuum Breaker
A lower back go with the flow prevention tool that allows air into the piping device, with using a
glide that actions up and down, to prevent backsiphonage. No back strain can exist for correct
operation. It can not be beneath regular strain for greater than 12 hours in any 24- hour length.
This device should be mounted vertically and at the least 6' better than all down movement
piping and the highest downstream head or outlet. There can not be any shut off valves
downstream of the ---. A separate --- should be set up on the discharge side of each manipulate
valve, between the valve and all emission gadgets. - ANS-Atmospheric Vacuum Breaker (AVB)
A bronze tube with a handle which fits right into a short coupler valve (and became one sector
revolution) for supplemental water. May be geared up with a sprinkler head, hose swivel or tap -
ANS-Coupler Key
A category device for pipe designating general wall thickness for all sizes in which the pipe is
made. Most common are schedules 40 and eighty. Schedule forty has a extra pressure score
that Class PVC pipe in sizes up to one half of". Schedule 40 has the same bodily dimensions as
that of metallic pipe - ANS-Schedule Pipe
A continuously pressurized valve set vertically inside the ground to offer supplemental water
(normally to a remote vicinity) whilst a coupler secret's inserted. It may additionally a vinyl or
plated cover - ANS-Quick Coupler Valve
A corrected or redrawn plan displaying the "real scaled" place of all main components of the
machine and other information the belongings proprietor might require. An ---- is an individual
device shape irrigators to discover predominant components at a later date - ANS-As-Built Plan
A cross connection is any actual or ability connection among a potable water deliver and:
a. A well
b. A chemical plant
,c. A pump station
d. Any supply that has the possibility to introduce polluted or infected water lower back into the
potable water that is offering it - ANS-d. Any supply that has the possibility to introduce polluted
or infected water returned into the potable water that is imparting it
A curve showing the fee of water application with the aid of a sprinkler at various points
alongside the radius in inches in step with hour - ANS-Distribution Curve (of a sprinkler head)
A device used in electrical troubleshooting is:
a. A sensor
b. An electrical manipulate valve
c. A test valve
d. A virtual multimeter - ANS-d. A virtual multimeter
A device used to show a short coupler valve on and rancid is:
a. A sprinkler key
b. A brief coupler key
c. A faucet cope with
d. A solenoid - ANS-b. A quick coupler key
A drawing of an set up irrigation gadget displaying most important element is:
a. Known as a file drawing or as-constructed plan
b. A corrected document for town use
c. An irrigation documentation
d. Is required by way of all towns - ANS-a. Referred to as a report drawing or as-built plan
A drawing of an set up irrigation gadget showing the area of primary components wither scaled
on the drawing or shown with the aid of dimensions now not to scale. To locate important
additives within the future, an accurate --- is essential, whether it's miles a proper drawing or
only a comic strip. The region valves are the most critical components to find appropriately on a
---. These can be positioned via accurate coordinates from a everlasting object, the usage of a
GPS unit, taking a picture of the sector valve in reference to a few permanent item, or
referencing the region with the aid of triangulating the area from its distance from two separate
everlasting gadgets or references factors. - ANS-Record Drawing
A becoming which suits in the pipe or tubing. Usually used on polyethylene pipe and tubing -
ANS-Insert fitting
A becoming which has I.P.S. Threads to receive a fashionable threaded pipe or fitting -
ANS-Threaded fitting
A bendy joint (composed of a chain of threaded risers and 3 elbow connections) or pipe
connecting a sprinkler head to a pipe. Intended to save you harm to the top because of heavy
foot site visitors, gadget, and so forth. Also used to raise or lower sprinklers to very last grade.
,Some irrigation professionals refer --- for each commercial and home installations. Residential
installations normally use a flexible poly-kind ---. - ANS-Swing joint
A form of back drift because of poor or sub-atmospheric pressure within the water device. A
damage inside the city principal line or a hearth department using immoderate water to fight a
close-by fireplace ought to both result in a ---- - ANS-Backsiphonage
A standard rule of thumb used in system layout identical to the static strain much less 10%
allowance for fluctuation. --- must now not exceed static strain less a 10% aspect. -
ANS-Pressure to Design to
A wellknown time period designating how uniform the application of water is over an irrigated
region - ANS-Uniformity of Application
A picture representation of precipitation is known as:
a. A plan
b. An irrigation design
c. A water audit
d. A densogram - ANS-d. A densogram
A organization of or greater control valves collectively in a single vicinity and/or valve field -
ANS-Manifold
A line of same elevation drawn on a plan. For instance, a --- labeled "250" manner that
everywhere along that line is 250 ft above imply sea level. ---- are normally correct to +/- one-1/2
of the contour c program languageperiod; ie. While a contour c language of 1-foot is indicated
on a plan, a selected ---- could be correct to +/- 6 inches - ANS-Contour line
A loss in PSI is a result of:
a. An elevation loss in piping
b. A restriction in the line
c. An elevation advantage inside the piping
d. An elevation advantage or loss within the piping - ANS-c. An elevation advantage within the
piping
A essential line designed to offer water to any valve form or more instructions. Using a looped
predominant line significantly improves the hydraulics - ANS-Loop Main Line
A material which reasons a partial dissolving of PCV pipe and fittings in order that a chemical
fusion occurs between the pipe and fittings - ANS-Solvent
A measure of pressure equivalent to .433 pounds according to square inch (psi) and identical to
the weights of 1 vertical foot of water on a one-square-inch surface. - ANS-Foot-Head "Feet of
Head"
, A measure of the degree of hazard or damage to the public's fitness; as an instance, the term is
used to categorize and irrigation gadget as a "non-health" or a "health danger". A pollutant is a
substance that can affect the color or odor of the water, however no longer create a fitness risk.
This could be considered a low, or non-health threat. - ANS-Hazard (Degree of)
A measure of the rate of trade of elevation over a prescribed distance. --- can be expressed as
a ratio, a grade, or as a percent. - ANS-Slope
A measuring device that has measurements as a given wide variety of ft according to inch is:
a. An engineer scale
b. A contour line
c. A gauge
d. An architects scale - ANS-a. An engineer scale
A mechanical device that lowers the water strain on the downstream aspect of the unit. These
gadgets may be adjustable or have a preset fixed pressure - ANS-Pressure Regulator
A mechanical tool used to degree the glide of water - ANS-Water meter
A meter (with a virtual show) that measures voltage, ohms and amps. Used in irrigation
electrical troubleshooting - ANS-Digital Multimeter (DMM)
A technique by using which PVC pipe is grouped consistent with the working strain. Pressure
rated with a wall thickness in direct ratio to the diameter. All sizes in that magnificence have the
identical operating stress - ANS-Class Pipe
A technique of controlling the wall thickness of pipe so all sizes of pipe in a specific "class" have
the identical --- - ANS-Pressure score
A method of retaining a regular discharge strain no matter inlet stress is referred to as:
a. A stress comfort valve
b. Matched precipitation
c. Pressure compensating
d. Minimal head strain - ANS-c. Stress compensating
A method of maintaining a regular discharge pressure no matter inlet stress. --- heads, as an
example, substantially improve the uniformity of the machine. As a rule of thumb, there must no
longer be extra than 10% distinction in pressure from the first head on a quarter to the last head.
With --- heads, all heads will operate with the same pressure - ANS-Pressure Compensating
A motorized tool which creates, or boosts pressure, is:
a. A pump
b. A pressure relief valve
--- means that every one sprinkler heads within a watering sector will produce similar
precipitation costs, irrespective of the sample they cowl - ANS-Matched Precipitation (MPR)
A again flow prevention assembly that contains a spring-loaded check valve and introduces air
into the system to prevent "again siphonage". It carries using a spring-loaded seat for nice
establishing to ecosystem. This device should be mounted at least 12" especially downstream
piping and the best downstream outlet. It can operate below steady strain, however cannot save
you again pressure. This tool may be used for both pollution and contaminates and may be
used for fitness risk programs only in which there is no hazard of again pressure -
ANS-Pressure Vacuum Breaker
A lower back go with the flow prevention tool that allows air into the piping device, with using a
glide that actions up and down, to prevent backsiphonage. No back strain can exist for correct
operation. It can not be beneath regular strain for greater than 12 hours in any 24- hour length.
This device should be mounted vertically and at the least 6' better than all down movement
piping and the highest downstream head or outlet. There can not be any shut off valves
downstream of the ---. A separate --- should be set up on the discharge side of each manipulate
valve, between the valve and all emission gadgets. - ANS-Atmospheric Vacuum Breaker (AVB)
A bronze tube with a handle which fits right into a short coupler valve (and became one sector
revolution) for supplemental water. May be geared up with a sprinkler head, hose swivel or tap -
ANS-Coupler Key
A category device for pipe designating general wall thickness for all sizes in which the pipe is
made. Most common are schedules 40 and eighty. Schedule forty has a extra pressure score
that Class PVC pipe in sizes up to one half of". Schedule 40 has the same bodily dimensions as
that of metallic pipe - ANS-Schedule Pipe
A continuously pressurized valve set vertically inside the ground to offer supplemental water
(normally to a remote vicinity) whilst a coupler secret's inserted. It may additionally a vinyl or
plated cover - ANS-Quick Coupler Valve
A corrected or redrawn plan displaying the "real scaled" place of all main components of the
machine and other information the belongings proprietor might require. An ---- is an individual
device shape irrigators to discover predominant components at a later date - ANS-As-Built Plan
A cross connection is any actual or ability connection among a potable water deliver and:
a. A well
b. A chemical plant
,c. A pump station
d. Any supply that has the possibility to introduce polluted or infected water lower back into the
potable water that is offering it - ANS-d. Any supply that has the possibility to introduce polluted
or infected water returned into the potable water that is imparting it
A curve showing the fee of water application with the aid of a sprinkler at various points
alongside the radius in inches in step with hour - ANS-Distribution Curve (of a sprinkler head)
A device used in electrical troubleshooting is:
a. A sensor
b. An electrical manipulate valve
c. A test valve
d. A virtual multimeter - ANS-d. A virtual multimeter
A device used to show a short coupler valve on and rancid is:
a. A sprinkler key
b. A brief coupler key
c. A faucet cope with
d. A solenoid - ANS-b. A quick coupler key
A drawing of an set up irrigation gadget displaying most important element is:
a. Known as a file drawing or as-constructed plan
b. A corrected document for town use
c. An irrigation documentation
d. Is required by way of all towns - ANS-a. Referred to as a report drawing or as-built plan
A drawing of an set up irrigation gadget showing the area of primary components wither scaled
on the drawing or shown with the aid of dimensions now not to scale. To locate important
additives within the future, an accurate --- is essential, whether it's miles a proper drawing or
only a comic strip. The region valves are the most critical components to find appropriately on a
---. These can be positioned via accurate coordinates from a everlasting object, the usage of a
GPS unit, taking a picture of the sector valve in reference to a few permanent item, or
referencing the region with the aid of triangulating the area from its distance from two separate
everlasting gadgets or references factors. - ANS-Record Drawing
A becoming which suits in the pipe or tubing. Usually used on polyethylene pipe and tubing -
ANS-Insert fitting
A becoming which has I.P.S. Threads to receive a fashionable threaded pipe or fitting -
ANS-Threaded fitting
A bendy joint (composed of a chain of threaded risers and 3 elbow connections) or pipe
connecting a sprinkler head to a pipe. Intended to save you harm to the top because of heavy
foot site visitors, gadget, and so forth. Also used to raise or lower sprinklers to very last grade.
,Some irrigation professionals refer --- for each commercial and home installations. Residential
installations normally use a flexible poly-kind ---. - ANS-Swing joint
A form of back drift because of poor or sub-atmospheric pressure within the water device. A
damage inside the city principal line or a hearth department using immoderate water to fight a
close-by fireplace ought to both result in a ---- - ANS-Backsiphonage
A standard rule of thumb used in system layout identical to the static strain much less 10%
allowance for fluctuation. --- must now not exceed static strain less a 10% aspect. -
ANS-Pressure to Design to
A wellknown time period designating how uniform the application of water is over an irrigated
region - ANS-Uniformity of Application
A picture representation of precipitation is known as:
a. A plan
b. An irrigation design
c. A water audit
d. A densogram - ANS-d. A densogram
A organization of or greater control valves collectively in a single vicinity and/or valve field -
ANS-Manifold
A line of same elevation drawn on a plan. For instance, a --- labeled "250" manner that
everywhere along that line is 250 ft above imply sea level. ---- are normally correct to +/- one-1/2
of the contour c program languageperiod; ie. While a contour c language of 1-foot is indicated
on a plan, a selected ---- could be correct to +/- 6 inches - ANS-Contour line
A loss in PSI is a result of:
a. An elevation loss in piping
b. A restriction in the line
c. An elevation advantage inside the piping
d. An elevation advantage or loss within the piping - ANS-c. An elevation advantage within the
piping
A essential line designed to offer water to any valve form or more instructions. Using a looped
predominant line significantly improves the hydraulics - ANS-Loop Main Line
A material which reasons a partial dissolving of PCV pipe and fittings in order that a chemical
fusion occurs between the pipe and fittings - ANS-Solvent
A measure of pressure equivalent to .433 pounds according to square inch (psi) and identical to
the weights of 1 vertical foot of water on a one-square-inch surface. - ANS-Foot-Head "Feet of
Head"
, A measure of the degree of hazard or damage to the public's fitness; as an instance, the term is
used to categorize and irrigation gadget as a "non-health" or a "health danger". A pollutant is a
substance that can affect the color or odor of the water, however no longer create a fitness risk.
This could be considered a low, or non-health threat. - ANS-Hazard (Degree of)
A measure of the rate of trade of elevation over a prescribed distance. --- can be expressed as
a ratio, a grade, or as a percent. - ANS-Slope
A measuring device that has measurements as a given wide variety of ft according to inch is:
a. An engineer scale
b. A contour line
c. A gauge
d. An architects scale - ANS-a. An engineer scale
A mechanical device that lowers the water strain on the downstream aspect of the unit. These
gadgets may be adjustable or have a preset fixed pressure - ANS-Pressure Regulator
A mechanical tool used to degree the glide of water - ANS-Water meter
A meter (with a virtual show) that measures voltage, ohms and amps. Used in irrigation
electrical troubleshooting - ANS-Digital Multimeter (DMM)
A technique by using which PVC pipe is grouped consistent with the working strain. Pressure
rated with a wall thickness in direct ratio to the diameter. All sizes in that magnificence have the
identical operating stress - ANS-Class Pipe
A technique of controlling the wall thickness of pipe so all sizes of pipe in a specific "class" have
the identical --- - ANS-Pressure score
A method of retaining a regular discharge strain no matter inlet stress is referred to as:
a. A stress comfort valve
b. Matched precipitation
c. Pressure compensating
d. Minimal head strain - ANS-c. Stress compensating
A method of maintaining a regular discharge pressure no matter inlet stress. --- heads, as an
example, substantially improve the uniformity of the machine. As a rule of thumb, there must no
longer be extra than 10% distinction in pressure from the first head on a quarter to the last head.
With --- heads, all heads will operate with the same pressure - ANS-Pressure Compensating
A motorized tool which creates, or boosts pressure, is:
a. A pump
b. A pressure relief valve
