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30. What are the three main things a digital multimeter can measure?
Answer
Correct Answer:
Voltage, ohms and amps
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31. What type of valve is the diaphragm of?
Answer
Correct Answer:
Automatic
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32. The diaphragm regulates passage of what?
Answer
Correct Answer:
Water
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33. What part of an automatic valve regulates the passage of water?
Answer
Correct Answer:
Diaphragm
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34. What is used to check the amount of precipitation and uniformity in a given irrigation area?
Answer
Correct Answer:
Densogram
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35. What do the colors in the previous image represent?
Answer
Correct Answer:
Rates
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36. What term means the minimum recommended operating pressure for a specific head?
Answer
Correct Answer:
Desired Head Pressure
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37. What is the sum total of the desired head pressure added to the total of all pressure losses?
Answer
Correct Answer:
Design Pressure
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38. Density Factor is used to reflect what?
Answer
Correct Answer:
Usage of water
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39. What is used to adjust the potential evapotranspiration to reflect the usage of water in relation to the density of the planting?
Answer
Correct Answer:
Density Factor
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40. What is a cycle?
Answer
Correct Answer:
Refers to one complete operation of the controller through a watering program
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41. What does the term cycle refer to?
Answer
Correct Answer:
One complete operation of the controller through a watering program
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42. What could cause a cross connection?
Answer
Correct Answer:
Any source of contamination or pollution
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43. What is an example of a cross connection?
Answer
Correct Answer:
Between a potable water supply and any source of contamination or pollution
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44. What is any actual or potential connection between a potable water supply and any source of contamination or pollution?
Answer
Correct Answer:
Cross Connection
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45. What are the different patterns of coverage available in sprinkler systems?
Answer
Correct Answer:
Quarter, half, full, etc
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46. What is another term for a bronze tube with a handle?
Answer
Correct Answer:
Coupler Key
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47. What are the most advanced controllers able to do?
Answer
Correct Answer:
Operate numerous satellite units in the field
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48. What type of devices opened or closed according to the prescribed program?
Answer
Correct Answer:
Automatic valves
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49. What type of valves are controlled by the control wires?
Answer
Correct Answer:
Automatic electrical valves
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50. What do the wires from the automatic controller do?
Answer
Correct Answer:
Transmit signals to the automatic electrical valves to open and close
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51. The wires which transmit signals to the automatic electrical valves to open and close are called what?
Answer
Correct Answer:
Control Wires
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52. What is meant by a contour interval of one foot?
Answer
Correct Answer:
+/- 6 inches
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53. What is used to mark a line on a plan that is equal in elevation?
Answer
Correct Answer:
Contour Line
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54. What is the name for grouping PVC pipe by working pressure?
Answer
Correct Answer:
Class Pipe
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55. Water flows in which direction through a check valve?
Answer
Correct Answer:
One direction only
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56. What valve allows water to flow in one direction only?
Answer
Correct Answer:
Check Valve
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57. What is the rating of the smoothness of the inside of pipe?
Answer
Correct Answer:
C-Factor
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58. What is the rating of the smoothness of the inside of copper pipe?
Answer
Correct Answer:
140
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59. What are catchment devices used to collect measurable water in order to do?
Answer
Correct Answer:
Conduct a water audit
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60. What is the name of the term for a container that is used to collect measurable water in order to conduct a water audit?
Answer
Correct Answer:
Catchment Devices
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61. What is the main effect of capillary action?
Answer
Correct Answer:
Distributing water horizontally
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62. What does the main effect distribute through the soil?
Answer
Correct Answer:
Water
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63. Water is distributed through the soil by what process?
Answer
Correct Answer:
Capillary Action
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64. What type of sprinkler head does not irrigate shrub beds?
Answer
Correct Answer:
Bubblers
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65. A bubbler is designed to irrigate what?
Answer
Correct Answer:
Level and definedshrub beds
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66. What is the purpose of a booster pump?
Answer
Correct Answer:
To raise the pressure in the irrigation system
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67. What is the name of the pump that is installed in the water supply line?
Answer
Correct Answer:
Booster Pump
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68. What is the term for the exterior case of the sprinkler?
Answer
Correct Answer:
Body
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69. What type of valve controls a section of sprinklers?
Answer
Correct Answer:
Zone
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70. What do blocks of sprinklers do?
Answer
Correct Answer:
Controlled by one zone valve
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71. What type of sprinkler has a steel ball that is set in motion by water?
Answer
Correct Answer:
Ball Driven Heads
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72. Any approved device which prevents an undesirable reversal of flow of water by the introduction of air, use of check valves, or a combination of both principles is known as what?
Answer
Correct Answer:
Backflow Prevention Methods
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73. What happens when a backsiphonage is present?
Answer
Correct Answer:
A break in the city main line or a fire department utilizing excessive water to fight a nearby fire
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74. Backsiphonage is a result of what?
Answer
Correct Answer:
Negative or sub-atmospheric pressure
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75. What condition could create pressure in the discharge side of the piping system that is greater than that of the supply side of the system?
Answer
Correct Answer:
Backpressure
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76. What is the unwanted reversal of water flow in piping systems?
Answer
Correct Answer:
Backflow
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77. What association is Abbreviated to?
Answer
Correct Answer:
American Water Works Association
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78. What is the abbreviation for American Water Works Association?
Answer
Correct Answer:
AWWA
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79. What does "Wet Foot Dry Foot" mean?
Answer
Correct Answer:
Water
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80. What is the amount of water a plant needs?
Answer
Correct Answer:
Inch of water per inch of soil
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81. What would an "Automatic System" do?
Answer
Correct Answer:
Cycle (water)
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82. What type of irrigation system will automatically cycle according to a preset program?
Answer
Correct Answer:
Automatic System
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83. What type of valve is called an Automatic Control Valve?
Answer
Correct Answer:
Electrical or hydraulic
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84. What is the term used to refer to the valves in a sprinkler system that are activated by an automatic controller?
Answer
Correct Answer:
Automatic Control Valve
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85. How often can a AVB not be under constant pressure?
Answer
Correct Answer:
More than 12 hours
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86. What is the acronym for Atmospheric Vacuum Breaker?
Answer
Correct Answer:
AVB
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87. What is an invaluable tool for irrigators to locate major components at a later date?
Answer
Correct Answer:
An as-built plan
Note: This Question is unanswered, help us to find answer for this one
88. What is the name of a corrected or redrawn plan showing the "actual scaled" location of all major components of the system and other information?
Answer
Correct Answer:
As-Built Plan
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89. Architect Scale is a system of units used to measure architectural dimensions in what units?
Answer
Correct Answer:
Parts of an inch
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90. Architect Scale is a form of what?
Answer
Correct Answer:
Foot measurements
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91. What would a 360-degree arc be called?
Answer
Correct Answer:
Full circle sprinkler
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92. What might be contained within an aquifer?
Answer
Correct Answer:
Water
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93. What is the term for a layer of porous rock, sand, etc. containing water, into which wells can be sunk?
Answer
Correct Answer:
Aquifer
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94. What is the name given to the rate at which water is applied by sprinkler heads?
Answer
Correct Answer:
Application Rate
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95. How many methods are there to evaluate application rates?
Answer
Correct Answer:
Three
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96. What type of vacuum breaker prevents air from entering the system?
Answer
Correct Answer:
Pressure-type
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97. What is a good name for an anti-siphon device?
Answer
Correct Answer:
Pressure-type vacuum breaker
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98. AC current reverses its direction what way?
Answer
Correct Answer:
Periodically
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99. What does the term AC refer to?
Answer
Correct Answer:
Alternating Current
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100. What is LAND called?
Answer
Correct Answer:
Allowable depletion
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101. How does the Air Relief Valve on a subsurface drip irrigation system prevent debris or contaminants from being sucked into the piping system?
Answer
Correct Answer:
Eliminates any vacuum
Note: This Question is unanswered, help us to find answer for this one
102. When the system is not running, what allows air into the drip line?
Answer
Correct Answer:
Air/Vacuum Relief Valve
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103. What unit is used to indicate the unobstructed vertical distance between the lowest point of a water supply outlet and the flood level rim of the fixture or assembly into which the outlet discharges?
Answer
Correct Answer:
Air gap
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104. To what degree must the actual head pressure be greater than the minimum head pressure?
Answer
Correct Answer:
Equal to
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105. What is the operating pressure measured at the base of a sprinkler head?
Answer
Correct Answer:
Actual Head Pressure
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106. What is the depth of soil which a plant extracts most of its water needs for evapotranspiration?
Answer
Correct Answer:
Root Zone
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107. What affects absorption rate?
Answer
Correct Answer:
Soil type
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108. What is the speed at which water can penetrate or infiltrate the soil?
Answer
Correct Answer:
Absorption Rate
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