Advanced Irrigation Exam

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Frage 1 von 63

Based on the equation of elevation x the constant PSI per foot. What is the total weight in pounds per square inch at the bottom of the 12 in.-high column?

Wähle eine der folgenden:

1.433
0.433
12.133
6.733

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Frage 2 von 63

Does container shape make a difference in static pressure situation?

Wähle eine der folgenden:

Yes
No
Need more info
Hard to calculate

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Frage 3 von 63

Based on the elevation on the above diagram, the PSI at the bottom of each container is:

Wähle eine der folgenden:

Different
Same
Unknown
Need to calculate

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Frage 4 von 63

In an irrigation system, what are the correct types of water pressure?

Wähle eine oder mehr der folgenden:

Dynamic Pressure
Static Pressure
Dynasty Pressure
Symbolic Pressure

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Frage 5 von 63

How many gallons of water are in one-acre foot?

Wähle eine der folgenden:

42,563
1
325,851
43,566

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Frage 6 von 63

Which of the following is a unit of pressure measurement that refers to the vertical distance between a liquid's surface and a point at which pressure is being measured?

Wähle eine der folgenden:

GPM
Feet of Head
Feet of Pipe
Feet Per Second

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Frage 7 von 63

If the pressure at the sprinkler is higher than what's recommended, it can lead to:

Wähle eine der folgenden:

Uniform distribution of water
Misting of water at the sprinkler
Decreased water cost.
Best Precipitation Rate

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Frage 8 von 63

Chose two correct ways to create pressure in irrigation systems.

Wähle eine oder mehr der folgenden:

Elevation
Booster Pump
Static Pressure
Dynamic Pressure

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Frage 9 von 63

Static Pressure is not affected by size or material of pipe, tank, or reservoir.

Wähle eins der folgenden:

WAHR
FALSCH

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Frage 10 von 63

Pressure in a pipe when no water is flowing (water is at rest) is called:

Wähle eine der folgenden:

Static pressure
Dynamic pressure
Friction loss
Velocity

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Frage 11 von 63

If the pressure at the base of a water column is 50 psi, then how high is the water column?

Wähle eine der folgenden:

138.6FT
126.4FT
112.6 FT
115.5 FT

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Frage 12 von 63

What is the static pressure at the valve?

Wähle eine der folgenden:

71.34
75.06
72.98
74.96

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Frage 13 von 63

What will be pressure at the base of this pipe?

Wähle eine der folgenden:

16.63
17.32
17.49
18.78

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Frage 14 von 63

One PSI equals 2.31 feet of head, and one foot of head equals 0.433 PSI.

Wähle eins der folgenden:

WAHR
FALSCH

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Frage 15 von 63

Calculate the static pressure at the valve.

Wähle eine der folgenden:

82.47 PSI
101.96 PSI
90.15 PSI
92.48 PSI

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Frage 16 von 63

What is the static pressure at the valve?

Wähle eine der folgenden:

90.93 PSI
91.92 PSI
90.93 Feet of Head
91.92 Feet of Head

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Frage 17 von 63

What is the only factor that affects Static Pressure?

Wähle eine der folgenden:

Elevation
Velocity
Size of pipe
Flow

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Frage 18 von 63

Only changes in elevation impact static pressure.

Wähle eins der folgenden:

WAHR
FALSCH

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Frage 19 von 63

Flow and Velocity is the same measurement of water volume (amount).

Wähle eins der folgenden:

WAHR
FALSCH

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Frage 20 von 63

Wähle von der Aufklappliste, um den Text zu vervollständigen.

When water moves through an irrigation system it is said to be in
a ( Dynamic, Static, High Pressure, Frozen ) state.

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Frage 21 von 63

Wähle von der Dropdown-Liste, um den Text zu vervollständigen.

Flow is commonly measured in ( GOM, GPM, GPH, PSI ) for sprinkler systems and in ( GOM, GPH, GPM, PSI ) for drip irrigation systems.

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Frage 22 von 63

Flow is the amount (volume) of water moving per unit of time. Measured in GPH and GPM

Wähle eins der folgenden:

WAHR
FALSCH

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Frage 23 von 63

Velocity is the speed of moving water. Measured in:

Wähle eine der folgenden:

Feet Per Second (FPS)
Gallons Per Hour (GPH)
Gallons Per Minute (GPM)
Weight Of Water (WOW)

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Frage 24 von 63

The faster the water moves trough the pipes, the better the sprinklers work.

Wähle eins der folgenden:

WAHR
FALSCH

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Frage 25 von 63

The optimal water velocity is:

Wähle eine der folgenden:

25 (FPS)
15 (FPS)
10 (FPS)
5 (FPS)

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Frage 26 von 63

❌ ^-

The primary causes of water hammer include a combination of:

Wähle eine oder mehr der folgenden:

When water is suddenly stopped.
When water suddenly changes direction.
When water moves too fast.
When pressure is too low
Air pockets in the system

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Frage 27 von 63

❌ ^-

What are the Friction Loss Charts used for?

Wähle eine oder mehr der folgenden:

To determine the pressure loss in pipe due to friction losses
To determine the velocity at various flow rates
To find the maximum allowable flow of water in gallons per minute per pipe size
To find the optimal pressure (PSI) per rotor head

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Frage 28 von 63

Why is an Ohms test commonly performed?

Wähle eine der folgenden:

To measure the electrical resistance in the system wiring, identifying potential issues like faulty solenoids or damaged wires.
To test the voltage at the transformer
To check how many solenoids are on he line
To test the voltage of the solenoid

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Frage 29 von 63

The voltage of a solenoid can be found by conducting an Ohms test?

Wähle eins der folgenden:

WAHR
FALSCH

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Frage 30 von 63

Both AC and DC latching solenoids can be used in a 24v conventional controller.

Wähle eins der folgenden:

WAHR
FALSCH

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Frage 31 von 63

What does AC stand for?

Wähle eine der folgenden:

Alternative Current
Alternating Voltage
Alternating Current
Advancing Circuit

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Frage 32 von 63

What is the most common Voltage used when turning on an irrigation valve

Wähle eine der folgenden:

24 DC Volts
24 AC Volts
124 AC Volts
9 DC Volts

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Frage 33 von 63

Ohms is the measurement of the...

Wähle eine der folgenden:

Amps in the line
Resistance in the line
Voltage in the line
Resistance in the transformer

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Frage 34 von 63

The nominal voltage for an irrigation controller, particularly one designed to operate with standard 24V AC solenoids, should typically be within the range of

Wähle eine der folgenden:

22 to 28 Volts DC.
22 to 28 Volts AC.
9-12 Volts AC
9-12 Volts DC

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Frage 35 von 63

When doing an Ohms test and finding a reading between 20-60 Ohms means we have....

Wähle eine der folgenden:

A broken/cut wire.
A bad wire splice.
A good line/solenoid.
A short on the wire path.

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Frage 36 von 63

When conducting an Ohms test. A bad wire splice will be referred as...

Wähle eine der folgenden:

Open wire
Partial
Cut wire
Good wire

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Frage 37 von 63

A ground fault is..

Wähle eine der folgenden:

Earth contact with any part of the wire
a wire splice
an insulated solenoid
a disconnected controller

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Frage 38 von 63

Precipitation rate in a landscape irrigation system refers to the amount of water applied per unit area per unit time.

Wähle eins der folgenden:

WAHR
FALSCH

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Frage 39 von 63

What is the primary purpose of knowing the precipitation rate of a landscape irrigation system?

Wähle eine der folgenden:

To determine the soil's pH level.
To calculate the electrical load on the irrigation controller.
To make sure the system uses just the right amount of water, avoiding both overwatering and underwatering.
To measure the flow rate of water through the main supply line.

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Frage 40 von 63

❌ ^-

When the nozzles in sprinklers are mixed, it can lead to several issues:

Wähle eine oder mehr der folgenden:

Uneven water distribution
Reduced efficiency
Damage to plants
Increased turf health
Optimal performance

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Frage 41 von 63

What can happen when the nozzles in sprinklers are mixed?

Wähle eine der folgenden:

Improved water coverage and efficiency.
Reduced water usage and lower costs.
Uneven water distribution and potential plant damage.
Increased water pressure and higher flow rates.

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Frage 42 von 63

Sprinkler head to head spacing refers to:

Wähle eine der folgenden:

The distance between sprinkler heads in a landscape irrigation system.
The height of the sprinkler heads above the ground.
The type of nozzle used in the sprinkler heads.
The water pressure required for the sprinkler system.

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Frage 43 von 63

Which of the following factors would NOT influence sprinkler head spacing in a landscape irrigation system?

Wähle eine der folgenden:

Sprinkler type
Soil type
Water pressure
Wind conditions

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Frage 44 von 63

Why is it important to monitor soil moisture levels when scheduling irrigation?

Wähle eine der folgenden:

To ensure plants receive adequate nutrients.
To calculate the best day to water the plant material
To prevent under/overwatering
To prevent the sprinklers from working properly

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Frage 45 von 63

Which of the following is NOT a characteristic of an efficient irrigation schedule?

Wähle eine der folgenden:

Customized to your specific landscape
Same and unchanging
Weather-based adjustments
Soil moisture monitoring

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Frage 46 von 63

You have a landscape irrigation system that is currently overwatering your turf. Which of the following adjustments would likely be most effective in reducing water consumption without compromising plant health?

Wähle eine der folgenden:

Increase the water pressure by changing a few nozzles.
Increase the frequency of irrigation cycles by 50%.
Reduce the frequency and duration of irrigation cycles.
Replace your existing sprinklers with a drip irrigation system.

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Frage 47 von 63

What is the combined process of evaporation and transpiration in landscape irrigation systems?

Wähle eine der folgenden:

Precipitation Rates
Leaching
Evapotranspiration
Water Runoff

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Frage 48 von 63

Why is understanding evapotranspiration important for landscape irrigation?

Wähle eine der folgenden:

To determine the type of sprinkler heads to use
To estimate water needs for plants
To calculate the cost of water
To prevent soil erosion

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Frage 49 von 63

Which of the following factors does NOT affect evapotranspiration rates?

Wähle eine der folgenden:

Temperature
Humidity
Soil type
Wind

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Frage 50 von 63

How can understanding evapotranspiration help you improve your landscape irrigation practices?

Wähle eine der folgenden:

By reducing the frequency of watering
By increasing the amount of water applied
By optimizing your irrigation schedule
By changing the type of plants you grow

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Frage 51 von 63

What is the primary purpose of an irrigation system?

Wähle eine der folgenden:

To fertilize the soil
To control weeds
To provide water to plants efficiently
To prevent soil erosion

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Frage 52 von 63

Which soil type has the highest water-holding capacity?

Wähle eine der folgenden:

Sandy soil
Silt soil
Clay soil
Loamy soil

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Frage 53 von 63

What is the function of a backflow preventer in an irrigation system?

Wähle eine der folgenden:

To reduce water pressure
To prevent water from flowing backward and contaminating the potable water supply
To increase the flow rate
To filter sediment from water

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Frage 54 von 63

What is the primary purpose of a pressure regulator in an irrigation system?

Wähle eine der folgenden:

To increase water pressure
To maintain a consistent pressure level within the system
To filter out debris
To control the flow rate

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Frage 55 von 63

What is the purpose of a "zone" in an irrigation system?

Wähle eine der folgenden:

To divide the area into manageable sections for watering
To increase water pressure
To reduce water consumption
To control the water temperature

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Frage 56 von 63

What does the term "solenoid" refer to in an irrigation valve?

Wähle eine der folgenden:

A mechanical component that controls water flow
An electrical device that opens and closes the valve
A type of pipe fitting
A tool used for trenching

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Frage 57 von 63

Which of the following is a common problem with irrigation controllers?

Wähle eine der folgenden:

Power surges
Incorrect programming
High water pressure
Overgrown grass

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Frage 58 von 63

Which of the following best describes the term "water window" in irrigation?

Wähle eine der folgenden:

The time frame in which irrigation is allowed to run
The maximum amount of water that can be applied at one time
The period during which the system is checked for leaks
The optimal time to check soil moisture

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Frage 59 von 63

Irrigation is primarily intended to:

Wähle eine der folgenden:

Directly water plants
Replenish the water source for plants
Prevent soil erosion
Control weeds

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Frage 60 von 63

To effectively manage water in the root zone and program an irrigation controller correctly, which of the following factors should be considered?

Wähle eine der folgenden:

Amount of water needed for plants
Acceptable level of soil moisture depletion
Application rate of the irrigation system
Efficiency of the irrigation system
All of the above

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Frage 61 von 63

The precipitation rate of a sprinkler or a zone in a sprinkler system is defined as:

Wähle eine der folgenden:

The amount of water applied that is available in the root zone
The rate at which water is applied over a given area, measured in inches per hour
The specific water requirement of the plant
The overall efficiency of the sprinkler system

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Frage 62 von 63

Use the following to calculate the Watering Frequency:
Watering cool season turf with an 8-inch (0.66 ft) root zone, and a crop coefficient of 0.70. Soil is clay loam with available water of 1.00 in/ft with a slight slope. Precipitation rate is 0.5 in/hr. Your location has a daily moisture loss (ET) rate of 0.12 inches. The application efficiency is 68%. MAD = 50%

Frequency = (AW x RZ x MAD) / (ET x Kc)

Wähle eine der folgenden:

1-2 day interval
3-4 day interval
5-6 day interval
There is not enough information to calculate the watering frequency

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Frage 63 von 63

Use the same values to calculate the Run Time per interval:

Watering cool season turf with an 8-inch (0.66 ft) root zone, and a crop coefficient of 0.70. Soil is clay loam with available water of 1.00 in/ft with a slight slope. Precipitation rate is 0.5 in/hr. Your location has a daily moisture loss (ET) rate of 0.12 inches. The application efficiency is 68%. MAD = 50%. Use a 2-day interval.

Run Time = (60 x F x ET x Kc) / (PR x EA)

Wähle eine der folgenden:

16 minutes
29 minutes
47 minutes
There is not enough information to determine the run time

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	Erstellt von Sergio Olvera vor 9 Tage

A comprehensive exam, designed to evaluate the irrigation knowledge and skills of professionals seeking to advance their expertise in advanced landscape irrigation techniques.

Advanced Irrigation Exam

Advanced Irrigation Exam

Frage 1 von 63

Based on the equation of elevation x the constant PSI per foot. What is the total weight in pounds per square inch at the bottom of the 12 in.-high column?

Wähle eine der folgenden:

Erklärung

Frage 2 von 63

Does container shape make a difference in static pressure situation?

Wähle eine der folgenden:

Erklärung

Frage 3 von 63

Based on the elevation on the above diagram, the PSI at the bottom of each container is:

Wähle eine der folgenden:

Erklärung

Frage 4 von 63

In an irrigation system, what are the correct types of water pressure?

Wähle eine oder mehr der folgenden:

Erklärung

Frage 5 von 63

How many gallons of water are in one-acre foot?

Wähle eine der folgenden:

Erklärung

Frage 6 von 63

Which of the following is a unit of pressure measurement that refers to the vertical distance between a liquid's surface and a point at which pressure is being measured?

Wähle eine der folgenden:

Erklärung

Frage 7 von 63

If the pressure at the sprinkler is higher than what's recommended, it can lead to:

Wähle eine der folgenden:

Erklärung

Frage 8 von 63

Chose two correct ways to create pressure in irrigation systems.

Wähle eine oder mehr der folgenden:

Erklärung

Frage 9 von 63

Static Pressure is not affected by size or material of pipe, tank, or reservoir.

Wähle eins der folgenden:

Erklärung

Frage 10 von 63

Pressure in a pipe when no water is flowing (water is at rest) is called:

Wähle eine der folgenden:

Erklärung

Frage 11 von 63

If the pressure at the base of a water column is 50 psi, then how high is the water column?

Wähle eine der folgenden:

Erklärung

Frage 12 von 63

What is the static pressure at the valve?

Wähle eine der folgenden:

Erklärung

Frage 13 von 63

What will be pressure at the base of this pipe?

Wähle eine der folgenden:

Erklärung

Frage 14 von 63

One PSI equals 2.31 feet of head, and one foot of head equals 0.433 PSI.

Wähle eins der folgenden:

Erklärung

Frage 15 von 63

Calculate the static pressure at the valve.

Wähle eine der folgenden:

Erklärung

Frage 16 von 63

What is the static pressure at the valve?

Wähle eine der folgenden:

Erklärung

Frage 17 von 63

What is the only factor that affects Static Pressure?

Wähle eine der folgenden:

Erklärung

Frage 18 von 63

Only changes in elevation impact static pressure.

Wähle eins der folgenden:

Erklärung

Frage 19 von 63

Flow and Velocity is the same measurement of water volume (amount).

Wähle eins der folgenden:

Erklärung

Frage 20 von 63

When water moves through an irrigation system it is said to be in
a ( Dynamic, Static, High Pressure, Frozen ) state.

Flow is commonly measured in ( GOM, GPM, GPH, PSI ) for sprinkler systems and in ( GOM, GPH, GPM, PSI ) for drip irrigation systems.