Irrigation Terms

Question 1

Which of the following describes the rate at which water is applied by sprinkler heads in a certain pattern?

Answer 1

Correct: Application Rate

A. Precipitation rate
B. Infiltration rate
C. Absorption rate

Question 2

Absorption Rate is defined as:

Answer 2

Rate at which soul will accept water.

Question 3

Static pressure minus all pressure losses will give you:

Answer 3

Actual head Pressure

Question 4

The degree of coverage of a sprinkler from one side of a pattern to the other is:

Answer 4

The arc

Question 5

A timing device which signals the automatic valves to open or close is called a:

Answer 5

Remote control valve

Question 6

A device used to turn a quick coupler valve on and off is:

Answer 6

A quick coupler key

Question 7

A graphic representation of precipitation is:

Answer 7

A water audit

Question 8

The flexible portion of the remote control valve which regulates the passage of water through the valve is:

Answer 8

A diaphragm

Question 9

A device used in electrical troubleshooting is:

Answer 9

A digital multimeter

Question 10

Which device can be used to help prevent freezing of water in the piping?

Answer 10

Drain valve

Question 11

Slow application rates expressed only GPH are usually referring to what type of irrigation:

Answer 11

Drip Irrigation

Question 12

What small mechanical device is used to limit water flow to a very low drop or trickle?

Answer 12

An emitter

Question 13

Waste water, such as from your bath, sink, or washing machines is called

Answer 13

Grey water

Question 14

A method of maintaining a constant discharge pressure regardless of inlet pressure is called:

Answer 14

Pressure compensating

Question 15

A motorized device which creates, or boosts pressure is called:

Answer 15

A pump

Question 16

Domestic or municipal wastewater which has been treated to a quality suitable for beneficial use such as landscape irrigation, is called:

Answer 16

Reclaimed water

Question 17

A drawing of an installed irrigation system showing major components is:

Answer 17

Record drawing

Question 18

The process of calculating and managing the time and amount of water to apply to the landscape is referred to as:

Answer 18

Scheduling

Question 19

A swing joint is used:

Answer 19

To prevent damage for the head.

Question 20

Xeriscaping is:

Answer 20

Proper planning and design 
Soil analysis and improvement 
Low water plant selection and placement
Alternative use for turf areas
Efficient irrigation
Mulching 
Proper maintenance of the landscape and irrigation

Question 21

Heads that have valves incorporated within them are referred to as:

Answer 21

Valve-in-heads

Question 22

Slow application of water directly to the root zone using very low pressure is considered:

Answer 22

Drip irrigation

Question 23

Which device is used to keep debris from being sucked into the line?

Answer 23

Air/vacuum relief valve

Question 24

A valve that allows water to travel in only one direction is called:

Answer 24

Check valve

Question 25

What type of valve would be installed to offer water to a remote location?

Answer 25

Quick-coupled valve