TX landscape irrigation manual Exam
Questions and Answers
Absorption rate is defined as: - Correct Answers -Rate at which soil will accept water
Static pressure minus all pressure losses will give: - Correct Answers -Actual Head
Pressure
The degree of coverage of a sprinkler from one side of a pattern to the other is: -
Correct Answers -The arc
A timing device which signals the automatic valves to open or close is called: - Correct
Answers -Controller, Clock, or Timer
A device used to turn a quick coupler valve on and off is: - Correct Answers -A quick
coupler key
Minimum Head Pressure plus the total of all Pressure losses equals: - Correct Answers
-Design Pressue
A graphic representation of precipitation is called: - Correct Answers -Desogram
The flexible portion of the remote control valve which regulates the passage of water
through the valve is called: - Correct Answers -A diaphragm
A device used in electrical troubleshooting is: - Correct Answers -A digital multimeter
What is the maximum pressure loss in a zone valve? - Correct Answers -10% of the
static water pressure
Zoning a shady area separate from sunny area is considered? - Correct Answers -
Hydrozoning
Variation in head pressure from the first to the last sprinkler head in a zone should not
exceed? - Correct Answers -10%
, What is a good rule to follow when working hydraulics? - Correct Answers -Take the
most direct route from the point in question back to the city mainline or point in question.
What device can be used to help prevent freezing of water in the piping? - Correct
Answers -Drain Valve
Slow application rates expressed in GPH are usually referring to what type of irrigation?
- Correct Answers -Drip irrigation
What small mechanical device is used to limit water flow to a very low drip or trickle? -
Correct Answers -An emitter
A measuring device that has measurements as a given number of feet per inch is: -
Correct Answers -Engineer Scale
Wastewater, such as from your bath, sink, or washing machines, is called - Correct
Answers -Gray water
In order to run multiple sprinkler heads, with varying arcs, on the same zone, the
sprinkler heads must have: - Correct Answers -Matched Precipitation Rates
A method of maintaining a constant discharge pressure regardless of inlet pressure is
called: - Correct Answers -Pressure compensating
A motorized device which creates, or boosts pressure, is: - Correct Answers -A pump
Domestic or municipal wastewater which has been treated to a quality suitable for
beneficial use, such as landscape irrigation, is called - Correct Answers -Reclaimed
water or recycled water
A drawing of an installed irrigation system showing major components is: - Correct
Answers -A record drawing
The process of calculating and managing the time and amount of water to apply to the
landscape is referred to as: - Correct Answers -Scheduling
A swing joint is used: - Correct Answers -To prevent damage to the head
This form of landscape design promotes water conservation and utilizes mulching and
efficient irrigation - Correct Answers -Xeriscaping
Sprinkler heads that have valves incorporated within them are referred to as: - Correct
Answers -Valve-in-heads
The slow application of water directly to the root zone using very low pressure is
considered: - Correct Answers -Drip Irrigation
Questions and Answers
Absorption rate is defined as: - Correct Answers -Rate at which soil will accept water
Static pressure minus all pressure losses will give: - Correct Answers -Actual Head
Pressure
The degree of coverage of a sprinkler from one side of a pattern to the other is: -
Correct Answers -The arc
A timing device which signals the automatic valves to open or close is called: - Correct
Answers -Controller, Clock, or Timer
A device used to turn a quick coupler valve on and off is: - Correct Answers -A quick
coupler key
Minimum Head Pressure plus the total of all Pressure losses equals: - Correct Answers
-Design Pressue
A graphic representation of precipitation is called: - Correct Answers -Desogram
The flexible portion of the remote control valve which regulates the passage of water
through the valve is called: - Correct Answers -A diaphragm
A device used in electrical troubleshooting is: - Correct Answers -A digital multimeter
What is the maximum pressure loss in a zone valve? - Correct Answers -10% of the
static water pressure
Zoning a shady area separate from sunny area is considered? - Correct Answers -
Hydrozoning
Variation in head pressure from the first to the last sprinkler head in a zone should not
exceed? - Correct Answers -10%
, What is a good rule to follow when working hydraulics? - Correct Answers -Take the
most direct route from the point in question back to the city mainline or point in question.
What device can be used to help prevent freezing of water in the piping? - Correct
Answers -Drain Valve
Slow application rates expressed in GPH are usually referring to what type of irrigation?
- Correct Answers -Drip irrigation
What small mechanical device is used to limit water flow to a very low drip or trickle? -
Correct Answers -An emitter
A measuring device that has measurements as a given number of feet per inch is: -
Correct Answers -Engineer Scale
Wastewater, such as from your bath, sink, or washing machines, is called - Correct
Answers -Gray water
In order to run multiple sprinkler heads, with varying arcs, on the same zone, the
sprinkler heads must have: - Correct Answers -Matched Precipitation Rates
A method of maintaining a constant discharge pressure regardless of inlet pressure is
called: - Correct Answers -Pressure compensating
A motorized device which creates, or boosts pressure, is: - Correct Answers -A pump
Domestic or municipal wastewater which has been treated to a quality suitable for
beneficial use, such as landscape irrigation, is called - Correct Answers -Reclaimed
water or recycled water
A drawing of an installed irrigation system showing major components is: - Correct
Answers -A record drawing
The process of calculating and managing the time and amount of water to apply to the
landscape is referred to as: - Correct Answers -Scheduling
A swing joint is used: - Correct Answers -To prevent damage to the head
This form of landscape design promotes water conservation and utilizes mulching and
efficient irrigation - Correct Answers -Xeriscaping
Sprinkler heads that have valves incorporated within them are referred to as: - Correct
Answers -Valve-in-heads
The slow application of water directly to the root zone using very low pressure is
considered: - Correct Answers -Drip Irrigation
