Landscaping: Irrigation Exam Questions
and Answers
The biggest advantage of irrigation id the crop yield can be up to ------- times that of dry
land farming, resulting in an increase of crop diversification. - Correct Answers -three
Evidence of irrigation dates back as far as ---- B.C. - Correct Answers -5400
Soil provides ------- to plants. - Correct Answers -All of the above
Soil texture cannot be changed or destroyed. T/F? - Correct Answers -True
A preferred structure of soil which has ------ sized pore spaces which allow for some
drainage, yet do not hold water too closely to the soil particles. - Correct Answers -
Medium
As a rule of thumb, ---- textured soils have a lower water capacity than ------ textured
soils. - Correct Answers -finer; coarser
Micro irrigation is frequent, low volume, low pressure application of water on or beneath
the soil surface.T /F? - Correct Answers -True
------ is the application of water through surges to furrows, wills, or borders in a series of
on and off periods of constant or variable time spans. - Correct Answers -surge
irrigation
--- is irrigating croplands without uniformity or efficiency. - Correct Answers -
uncontrolled flooding
------ is a form of controlled surface flooding in which there are no flow constraints along
the length of the run and the water moves down the slope. - Correct Answers -contour
ditch irrigation
Center pivot systems are which of the following? - Correct Answers -All of the above
The ----- is best adapted for rectangular fields. - Correct Answers -side roll sprinkler
system.
, The ------, is a combination of the other two systems, and it moves continuously
throughout the field on towers like pivots. - Correct Answers -linear system
The -------- uses a large capacity nozzle and high pressure to through out water onto the
crop. - Correct Answers -travelling gun system
In most grass areas, ------ are used. - Correct Answers -pop-up sprinklers
---- rotate mechanically to distribute water. - Correct Answers -rotor heads
-------- and micro sprayers apply water directly to soil. - Correct Answers -drip emitters
---- are used to water shrubs and ground cover areas. - Correct Answers -bubblers
The sprinkler is the outlet that controls the release of water. T/F? - Correct Answers -
False
Sprinkler irrigation systems mimic or replace rainfall during dry weather. T/F? - Correct
Answers -True
Which of the following is a system in which point source emitters apply water at the soil
surface in discrete or continuous drops, tiny streams or low volume fountain through
small openings? - Correct Answers -point source emitters
Which of the following is a system which uses surface or buried tubing with evenly
spaced emitters? - Correct Answers -spray or mini sprinklers
Which of the following is a system which applies water in small fountain like streams on
the soil surface? - Correct Answers -basin bubblers
Which of the following is a system which applies water at the soil surface by spraying
droplets from small, low pressure sprinkler heads? - Correct Answers -spray or mini
sprinklers
Which of the following is a system in which the application of water is below the soil
surface through emitters? - Correct Answers -subsurface drip irrigation
what is irrigation? - Correct Answers -untreated wastewater
What do producers use in order to provide adequate water to plants? - Correct Answers
-irrigation
Which soil and plant condition indicates a need for irrigation? - Correct Answers -rooting
depth
and Answers
The biggest advantage of irrigation id the crop yield can be up to ------- times that of dry
land farming, resulting in an increase of crop diversification. - Correct Answers -three
Evidence of irrigation dates back as far as ---- B.C. - Correct Answers -5400
Soil provides ------- to plants. - Correct Answers -All of the above
Soil texture cannot be changed or destroyed. T/F? - Correct Answers -True
A preferred structure of soil which has ------ sized pore spaces which allow for some
drainage, yet do not hold water too closely to the soil particles. - Correct Answers -
Medium
As a rule of thumb, ---- textured soils have a lower water capacity than ------ textured
soils. - Correct Answers -finer; coarser
Micro irrigation is frequent, low volume, low pressure application of water on or beneath
the soil surface.T /F? - Correct Answers -True
------ is the application of water through surges to furrows, wills, or borders in a series of
on and off periods of constant or variable time spans. - Correct Answers -surge
irrigation
--- is irrigating croplands without uniformity or efficiency. - Correct Answers -
uncontrolled flooding
------ is a form of controlled surface flooding in which there are no flow constraints along
the length of the run and the water moves down the slope. - Correct Answers -contour
ditch irrigation
Center pivot systems are which of the following? - Correct Answers -All of the above
The ----- is best adapted for rectangular fields. - Correct Answers -side roll sprinkler
system.
, The ------, is a combination of the other two systems, and it moves continuously
throughout the field on towers like pivots. - Correct Answers -linear system
The -------- uses a large capacity nozzle and high pressure to through out water onto the
crop. - Correct Answers -travelling gun system
In most grass areas, ------ are used. - Correct Answers -pop-up sprinklers
---- rotate mechanically to distribute water. - Correct Answers -rotor heads
-------- and micro sprayers apply water directly to soil. - Correct Answers -drip emitters
---- are used to water shrubs and ground cover areas. - Correct Answers -bubblers
The sprinkler is the outlet that controls the release of water. T/F? - Correct Answers -
False
Sprinkler irrigation systems mimic or replace rainfall during dry weather. T/F? - Correct
Answers -True
Which of the following is a system in which point source emitters apply water at the soil
surface in discrete or continuous drops, tiny streams or low volume fountain through
small openings? - Correct Answers -point source emitters
Which of the following is a system which uses surface or buried tubing with evenly
spaced emitters? - Correct Answers -spray or mini sprinklers
Which of the following is a system which applies water in small fountain like streams on
the soil surface? - Correct Answers -basin bubblers
Which of the following is a system which applies water at the soil surface by spraying
droplets from small, low pressure sprinkler heads? - Correct Answers -spray or mini
sprinklers
Which of the following is a system in which the application of water is below the soil
surface through emitters? - Correct Answers -subsurface drip irrigation
what is irrigation? - Correct Answers -untreated wastewater
What do producers use in order to provide adequate water to plants? - Correct Answers
-irrigation
Which soil and plant condition indicates a need for irrigation? - Correct Answers -rooting
depth
