Irrigation Exam 2 Practice

These questions are part of the practice quiz. Start practicing

• How is 'soil moisture' defined in irrigation terms?
• Which type of load are furnace fans and air compressors classified as?
• Which agricultural practices can affect irrigation requirements?
• Which approach can enhance water conservation in irrigation practices?
• What are potential consequences of inadequate irrigation management?
• True or False: Centrifugal pumps are more efficient at pushing water than lifting it.
• What type of phase power is commonly supplied to homes?
• What is the purpose of using straw mulch in agriculture?
• From which source is groundwater typically withdrawn?
• Which of the following is a benefit of micro-irrigation?
• What is the term for multiple impellers stacked in a line shaft turbine?
• Which of the following factors does NOT influence pressure in an irrigation system?
• True or False: Net positive suction head is the pressure under which water will enter the eye of the impeller.
• What is one advantage of using moisture sensors in irrigation systems?
• Where does water typically enter a centrifugal pump?
• In irrigation, what does NPSH stand for?
• What is the method of watering a field without definite channels or direction called?
• What is the difference between surface and subsurface irrigation?
• What is the maximum horsepower for single phase motors typically mentioned?
• What is the chemical form of PAM used in agronomic applications?
• Can a displacement pump operate with the discharge valve mostly closed without damage?
• How can water conservation be effectively achieved in irrigation?
• What role do cover crops play in an irrigation context?
• What can be done to reduce leaks in aluminum sprinkler pipe sections?
• What is the purpose of using soil moisture sensors?
• How does friction impact water flow in irrigation systems?
• How can you determine the rated power of an electric motor?
• Which type of pump is best suited for running a chemigation system?
• What primary issue can arise with inadequate irrigation scheduling?
• If water runs off during irrigation, what does this indicate?
• What does the term 'micro-irrigation' refer to?
• What does the term 'irrigated area' refer to?
• What is 'water-use efficiency'?
• What is a service factor in relation to a motor?
• What characterizes flood irrigation?
• How does efficient irrigation maintenance contribute to environmental sustainability?
• What is the horsepower rating typically noted for triple phase motors?
• Which of the following is used to prevent water from leaking out of the pump volute?
• What type of climatic condition may necessitate the use of a backup water source in irrigation?
• What is the impact of over-irrigation?
• What term describes small ditches in a field that direct the flow of water?
• Which irrigation method can also help in minimizing weed growth?
• What is the main advantage of using filters in irrigation systems?
• What is the purpose of scheduling irrigation?
• What type of irrigation would likely be least effective in sandy soils?
• What is the primary purpose of using a nameplate on an electric motor?
• What is the main goal of effective irrigation management?
• What type of pump is most likely found at a chemigation injection point?
• What does surge irrigation involve?
• Name a common practice to reduce evaporation loss in irrigation.
• What type of pump operates by adding energy to water in a set volume?
• How is a head measurement of 11.55 feet converted to psi?
• Which of the following pressures is generally considered optimal for functioning most sprinkler systems?
• How do you calculate the irrigation requirement for a crop?
• Which of the following describes TDH in irrigation?
• What is the primary benefit of using automated irrigation systems?
• What does a higher efficiency in basin irrigation indicate compared to other types?
• What is one primary advantage of using three phase power for motors?
• What polymer is used in soil erosion control?
• What type of pipe conveys water from a source ditch to a furrow without using a pump?
• What does 'field capacity' refer to in irrigation?
• What process involves clumping together of soil particles into a larger mass?
• What does PSI represent in the context of irrigation systems?
• Which type of application typically requires a dynamic pump?
• Which type of pump is best suited for high volume and less pressure?
• What type of impeller is described as having a full front and back shroud?
• What does the term "evapotranspiration" refer to?
• Which components are essential for a drip irrigation system?
• Which term describes the vertical distance water must be lifted in an irrigation system?
• Polyacrylamide is primarily used for what type of control?
• What is the primary function of a valve opener in an irrigation system?
• What type of surface irrigation system allows for no runoff and is more efficient than other types?
• What irrigation method is considered the most water-efficient?
• How many gallons are there in 1 cubic foot of water?
• What is a common disadvantage of sprinkler irrigation systems?
• What is the primary reason for using drip irrigation?
• What is the role of the volute case in a center pivot "big gun"?
• What is a rain gauge used for in irrigation?
• How does soil type influence irrigation practices?
• What does the infiltration of water into the soil depend on?
• Which factor is likely to increase the need for a backup water source?
• What is a series of graphs that provides information about the output characteristics of a pump?
• What unit is used to measure total dynamic head in the context of water flow?
• What is meant by 'drainage design' in irrigation?
• What is a pivot irrigation system?
• Which of the following is not compatible with drip irrigation?
• How much does 1 square foot of water weigh?
• How does terrain affect irrigation methods?
• What can worn or cracked gaskets in irrigation systems lead to?
• How does a backup water source contribute to crop resilience?
• What is the reliable method to determine the direction in which an impeller spins?
• True or False: Total dynamic head includes static head, velocity head, and headloss due to friction.
• What is the significance of the irrigation efficiency ratio?
• What is the purpose of gated pipe in a surface irrigation system?
• What maintenance activity is essential for preventing leaks in irrigation systems?
• What is the function of a control valve in an irrigation system?
• What happens if water is applied to soil at a rate greater than the infiltration rate?
• Which type of crops typically benefit from drip irrigation?
• Which phase of power do most industrial pumps operate on?
• What is the primary purpose of knowing the NPSH in an irrigation system?
• What is one primary goal of an irrigation system's design?
• Why should irrigation designs consider local wildlife?
• In which condition do single phase motors generally excel?
• What aspect of an irrigation system does TDH affect significantly?
• Which unit is typically used to measure the application of irrigation water?
• What equipment is sometimes equipped with end guns?
• What type of impellers are capable of passing the largest debris but have lower pressure capabilities?
• Which method would you choose to minimize water usage in a garden?
• Which of the following best describes an irrigation system's efficiency?
• How does crop rotation impact irrigation strategies?
• What is the primary purpose of irrigation in agriculture?
• What describes the role of the lateral in an irrigation setup?
• What could be the consequence of neglecting regular maintenance of irrigation systems?
• What is a common advantage of using a central pivot irrigation system?
• Which factor is most critical when scheduling irrigation?
• True or False: An increase in the velocity of a fluid reduces the discharge pressure of a pump and also requires less horsepower.
• What is the definition of an 'irrigation turn'?
• How does temperature affect irrigation scheduling?
• What does trimming an impeller entail?
• When measuring irrigation system pressure, what does the unit PSI specifically quantify?
• Which factor is most critical when choosing an irrigation system for a specific crop?
• What causes the phenomenon of runoff in irrigation?
• Why is it essential to monitor soil moisture levels?
• What phenomenon is characterized by a rapid rise in pressure within pipes due to a sudden change in water velocity?
• True or False: One disadvantage of three phase motors is that they do not last long.
• What is the resulting pressure suitable for a wheel line sprinkler system when the elevation difference is 45 feet?
• What is cavitation in the context of water systems?
• How many watts are equivalent to one horsepower?
• Which type of motor is known for higher efficiency in industrial settings?
• In irrigation, what does 'head' refer to?
• How do you identify a properly functioning irrigation emitter?
• What is the significance of having a backup water source in irrigation systems?
• Which agricultural practice minimizes the number of tillage passes across a field to conserve organic matter?
• What happens to the water flow when excess water is applied to a soil?
• What is a potential drawback of relying solely on a backup water source?
• Most impact sprinkler heads are primarily made from which material?
• Which of the following is a measurement of pressure in irrigation?
• How is pressure calculated from elevation difference in irrigation systems?
• True or False: Suction piping should be one pipe size larger than the pump intake.
• What is the role of a pressure regulator in an irrigation system?
• How can crop stress be identified in relation to irrigation?
• How is the impeller's functionality best described?
• What are the main types of irrigation systems?
• What is the role of a filter in an irrigation system?
• Which method is commonly used to calculate irrigation requirements?
• What equipment is used to prevent debris from clogging emitters in a drip system?
• True or False: The discharge on a centrifugal pump can be closed for short periods without causing damage.
• Electric motors operate on which two types of current?
• Which type of irrigation can also control the timing of water application?
• What is the benefit of using automation in irrigation systems?
• What additional benefit does a backup water source provide beyond continuous supply?
• Which two classifications describe motor duty?
• What is the term for the movement of water into soil?
• What type of irrigation system introduces water directly to the root zone of the plant?
• Which organic matter is added to a field to reduce soil erosion caused by water?
• What factors comprise total dynamic head (TDH)?
• What is the purpose of using cover crops in relation to irrigation?
• Why is soil testing crucial before establishing an irrigation system?
• What is 'irrigation audit'?
• How does organic matter percentage affect irrigation?
• Is surge irrigation commonly used with center pivot swing arms for uniform irrigation?
• What does PPI stand for in irrigation terminology?
• What is the weight of 1 gallon of water?
• Which two voltages can single phase motors operate on?
• In irrigation, the term "debris" primarily refers to what?
• Describe the term 'water table.'
• In irrigation systems, what does 'pressure regulator' do?
• Which of the following is NOT a type of microirrigation system?
• What is one benefit of precision irrigation technology?
• What does the duty cycle of a motor indicate?
• What is the advantage of using subsurface irrigation?
• A vertical column of water 2.31 feet high exerts what pressure in psi at the base?
• What material is typically used for gaskets between 3 inch hand line sprinklers?
• What is a common issue that can arise from poor irrigation system maintenance?
• What is a significant advantage of using a sprinkler irrigation system?
• Why is it important to maintain regular maintenance of irrigation systems?
• What do pump panels contain for pump motors?
• Why is it important to design proper drainage in an irrigation system?
• What is the function of the lateral pipe in irrigation systems?
• What is one disadvantage of surface irrigation?
• How is the term 'gallons per minute' (GPM) used in irrigation?
• Which device is commonly used to measure water flow in an irrigation system?
• What is a potential consequence of over-irrigation?
• What does the term 'hydraulic conductivity' signify?
• What type of irrigation system allows for the application of certain chemicals and fertilizers to crops?
• What type of phase power is typically used with large pumps and in industrial applications?
• What happens to a motor when it is put under load?
• How does climate influence irrigation planning?
• What is a common advantage of drip irrigation over traditional methods?
• Which factor primarily determines the efficiency of an irrigation system?
• What is the theoretical maximum height that an end suction centrifugal pump can lift water at sea level?
• In an irrigation system, what role does monitoring play in maintenance?
• How can salinity affect irrigation practices?
• Which factors influence the intake or infiltration rate of water in soil?