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Irrigation Exam 2 Practice Test 2023/2024 already graded A+
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  • TEXAS Irrigation

Irrigation Exam 2 Practice Test 2023/2024 already graded A+

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  • December 16, 2023
  • 5
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

Subjects

  • texas irrigation
  • t f surge irrigation is used along with center piv
  • t f the lateral carries water from the pump to the
  • impellers can pass the largest debris but
  • the vertical column of water 231 feet h

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  • TEXAS Irrigation
  • TEXAS Irrigation

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Irrigation Exam 2 Practice Test

T F Surge irrigation is used along with center pivot swing arms to provide more uniform
irrigation? - ANSFalse

T F Worn or cracked gaskets can be replaced to reduce leaks between sections of aluminum
sprinkler pipe by the farmer? - ANSTrue

T F Gaskets between 3 inch hand line sprinklers are made of only one material, rubberized
leather. - ANSFalse

T F The lateral carries water from the pump to the mainline. - ANSFalse

T F Organic matter percentage and soil texture affect the intake or infiltration rate of water? -
ANSTrue

T F Trimming an impeller means to put it into a different volute case? - ANSFalse

T F If water is applied to a soil in excess of the infiltration rate, runoff will occur? - ANSTrue

T F The volute case is a protective covering on a center pivot "big gun?" - ANSFalse

T F Pump panels contain the electrical protection and on/off switch for pump motors? - ANSTrue

T F A displacement pump can have the discharge valve closed most of the way without
damaging the pump? - ANSFalse

________impellers can pass the largest debris but have lower pressure capabilities. - ANSOpen

_______ is used to convey water from the mainline to furrows in a surface irrigation system
where it is then discharged through small adjustable openings in the pipe. - ANSGated Pipe

Most industrial pumps run on what phase of power? - ANSThree

Two examples of______ -duty loads include furnace fans and air compressors. -
ANSintermittent

The vertical column of water 2.31 feet high will an exert a pressure of____ psi on a gauge at the
base - ANS1 psi

A _________ is a series of graphs made by pump engineers providing information about out put
characteristics of the pump. - ANSPump Curve

, Polyacrylamide is used for ______ control. - ANSErosion

This is a type of surface irrigation where the field is perfectly level, water elevation is raised then
subsides, no run off is permitted, and is more efficient that other types of surface irrigation.
_______ - ANSBasin Irrigation

What is used to keep debris from plugging emitters on a drip system? - ANSFilter

A tank at the top of the hill is used to supply irrigation water to a turnip field. The elevation
difference is 45 feet. Will the resulting pressure be suitable for a wheel line sprinkler system?
Why or why not? - ANSNo, the Psi is not high enough.

P=.433H Pressure= 19 PSI

What is the function of a valve opener. Where would you find one? - ANSAllows water to pass
from mainline to the lateral, hand line or wheeline

What are the four types of microirrigation systems discussed in class? - ANSDrip
Subsurface
Bubbler
Spray

What material are most impact sprinkler heads made of? - ANSBrass

What pump would be best suited for running a chemigation system or pressure washer? -
ANSdisplacement

Pumps in which energy is added to the water periodically and the water is contained is a set
volume. - ANSDisplacement

A type of impeller with a full front and back shroud. - ANSClosed

T F The discharge on a centrifugal pump can be closed for short periods of time without
damage to the pump. - ANSTrue

Water enters a centrifugal pump at what location? - ANSNear the eye of the impellar

Another word for multiple impellers stacked on another with their own housing in a line shaft
turbine is_____ - ANSbowls

What is used to keep water from leaking out of the volute? - ANSpacking and mechanical seal

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