ADEQ Water Distribution Grade 1 Certification Practice Exam

These questions are part of the practice quiz. Start practicing

• What is the objective of vulnerability assessment?
• Chlorine gas detection by smell can become unreliable over time due to what phenomenon?
• What is the common method to secure an impeller to the shaft on a double-suction pump?
• Name the four broad categories of water quality. Physical, ______, biological, radiological.
• The peak day demand refers to the greatest amount of water used during which period?
• How does a double suction pump operate?
• What type of valve is used where the valve is not buried and an operator will need to know from an inspection whether the valve is open or closed?
• Which statement correctly describes seals for high suction head pumps?
• What is equipment that utilizes water for cooling, lubrication, washing or as a solvent always susceptible to?
• Which type of water pressure must be maintained to ensure adequate service during peak flow periods?
• Under what circumstances may the Department reduce monitoring frequency for nitrate at a surface water sampling point and what is the reduced frequency?
• When shutting a large valve, what will help to reduce high pressure?
• Lantern rings are used in a pump stuffing box to:
• What is the process called that changes water vapor to tiny droplets or ice crystals?
• Which treatment technique is NOT included in ADEQ grading a water facility?
• What does a double check valve backflow assembly provide effective protection from?
• What term describes the pressure surge caused by rapid changes in water flow?
• If a chlorine leak occurs, where will chlorine gas accumulate? Near the ____________ of the tank.
• On-site representative means a person located at a facility who monitors the daily operation and maintains contact with the ______ operator regarding the facility.
• What is an initial monitoring year?
• A Bellows-type sensor responds to a change in which parameter?
• A pressure tap is used to measure pressure at a point in a distribution system.
• A possible result of over greasing a bearing is:
• A continuous positive pressure in a distribution system is essential for preventing what event?
• How should a water meter that is removed from service for repair be handled?
• Which device has the greatest potential to cause contamination if a cross connection occurs?
• What is the difference between a reduced pressure principle backflow device and a double check backflow device? The RP has a __________.
• What is the name of the valve that reduces the differential pressure across a closed disk, making the main valve easier to open and close?
• Which valve is designed for connecting a new main to an existing pressurized main?
• A common cause of pump cavitation is which of the following?
• Water age in a distribution system is best described as the amount of time that water has been within the system since treatment.
• What is the inspection frequency that a remote operator must inspect a grade 1 or grade 2 water treatment plant or distribution system that produces groundwater?
• In automation environments, which gauge provides a digital readout suitable for data logging?
• Before beginning an excavation, who should be contacted to assist in determining the location of all underground utilities in the work area? An 'underground Service Alert' center, 'One Call Center' or Bluestake, all three of these are the same.
• If grease comes into contact with a motor winding, what is a possible effect on the winding insulation?
• In contemporary instrumentation, which gauge provides electronic output and easy data integration?
• Which statement describes the operation of a reduced pressure principle backflow assembly?
• What is the maximum time period between having a backflow device tested by a certified backflow tester?
• Which option is not among the three main water meter classifications?
• Which gauge is preferred when installation requires compatibility with digital controllers and alarms?
• What is the primary safety concern when using chlorine gas as opposed to calcium hypochlorite or sodium hypochlorite? The potential for a _____________ leak.
• On-site operator mandatory at which facility grades?
• Which gauge is designed to provide a digital display and electronic signal rather than a purely mechanical indication?
• Which disease is NOT transmitted by water?
• In modern instrumentation, which gauge is commonly used for direct digital readouts and PLC/SCADA interfacing?
• What is the definition of 'operator'?
• What is the definition of an on-site representative?
• What is a possible cause of a scored shaft sleeve?
• In a backsiphonage scenario, what kind of pressure is typically observed on the service or supply side?
• If a water meter causes head loss, which parameter is affected most directly?
• Which types of public water systems must comply with Article 6 Capacity Development Requirements for a New Public Water System?
• What may occur due to chronic exposure to low concentrations of chlorine gas? Chronic exposure may cause corrosion of the _____________.
• In a permit-required confined space entry, how many persons must be present?
• Which two agencies are responsible for approving laboratory analytical methods for drinking water analysis?
• An on-site operation is defined as an operator who visits a facility at least ______ to ensure that it is operating properly.
• Which type of PWS is not required to sample for VOC's?
• The term 'peak demand' refers to which of the following?
• Under what condition may nitrate monitoring frequency be reduced from quarterly to annually?
• What is the minimum distance required for an air-gap separation?
• What is the primary purpose of shoring equipment in a trench?
• Systems with which type of source water are required by law to treat using filtration and disinfection?
• For new installations emphasizing digital communication with control systems, which gauge is recommended?
• What is the purpose of the foot valve on a pump?
• Before starting an excavation, who should be contacted to assist in determining the location of all underground utilities in the work area? An 'underground Service Alert' center, 'One Call Center' or Bluestake, all three of these are the same.
• Define the term 'Water Hammer'.
• What does the word 'stationing' on a plan drawing refer to?
• What device helps keep the pump primed by preventing backflow in the suction line?
• According to Arizona State Rule, which term refers to derivatives of methane where 3 of 4 hydrogen atoms are substituted by a halogen atom?
• What is the most likely symptom one could expect upon exposure to a very small percentage of chlorine in the air? A ______ sensation in the eyes and throat.
• Which of the following are considered pressure sensing devices?
• Which of the following is a required element of confined space entry procedures?
• Upon expiration of an operator certificate, how many days does an operator have to reinstate the certificate without retaking an examination?
• The common method to secure an impeller to the shaft on a double-suction pump is what?
• Which practice is essential to prevent backflow in a distribution system?
• Which gauge type yields a digital readout and is commonly used where data integration and automation are important?
• Which device is used to prevent backflow on a service connection?
• Which backflow prevention device includes a relief valve as part of its mechanism?
• Which entity is NOT responsible for approving laboratory analytical methods for drinking water analysis?
• Which backflow prevention device is commonly required for protecting drinking water distribution systems from back-siphonage and backpressure?
• What is the main purpose of wear rings in a centrifugal double suction pump?
• Normal breathing will cause what symptom when exposed to chlorine gas, which must be prevented if possible?
• During a chlorine leak, what action should you take to maximize safety?
• What is the name of the valve designed for connecting a new water main to an existing main under pressure?
• In a centrifugal double-suction pump, wear rings are used to maintain what between the impeller discharge and suction areas?
• Initial monitoring is conducted at which point in the water system?
• Which statement about a double check valve backflow assembly is true?
• Which of the following best describes the purpose of posting signage at confined space entries?
• How should a supervisor warn an operator about the presence of a confined space? By clearly posting the appropriate ____________ at all entries to a confined space.
• Which of the following lists all three types of three-phase motors commonly used?
• Before performing work on any electrical equipment, what safety action should an operator perform?
• Which statement correctly describes the operation of a reduced pressure principle backflow assembly?
• What gauge type is preferred when clear readability and data logging are priorities?
• In a cross-connection scenario, which equipment has the greatest potential to contaminate the water?
• For high suction head conditions, which seal is best?
• A positive bacteriological sample indicates the presence of bacteriological ______.
• Which of the following lists types of pressure sensing devices?
• Name the three main classifications of water meters.
• What gauge is commonly selected for systems requiring electronic output and remote monitoring?
• Which statement about a capacitor-start single-phase motor is true?
• _______________ available chlorine is very effective in killing bacteria.
• Remote operator operation allowed at which facility grades?
• What are disease-causing organisms such as bacteria and viruses called?
• What is the general definition of an ion?
• Which safety measure should be posted at all entries to a confined space?
• Which backflow device provides effective protection from both backpressure and backsiphonage?
• In a pump stuffing box, which item is used to prevent air from entering without causing excessive heat and wear on the shaft sleeve?
• When storing an empty chlorine cylinder, which labeling practice should be used?
• What is the unit of measurement for sound?
• In regulatory terms, cross-connection is defined as a physical connection that may lead to contamination of water provided by which entity through backflow?
• Which statement best defines stationing on a plan drawing?
• Which of the following lists the three types of three-phase motors?
• How close must a certified operator live to operate remotely?
• Which gauge type is most suitable for automated data collection and minimizing parallax error?
• Pump cavitation can be caused by which condition?
• Which term completes the phrase: Physical, ______, biological, radiological are broad water quality categories?
• What must an operator ensure when installing a pressure vacuum breaker backflow device? It must be at least ______ inches above the highest downstream outlet.
• What is an advantage of a 'wet tap' vs. a 'dry tap'? You do not need to ______ the water line down.
• A remote operator is allowed to operate at which type of facility?
• A Bellows-type sensor responds to a change in which variable?
• Which statement best describes the function of a bypass valve in a pipeline system?
• What is the name of the area from which surface runoff is carried away by a single drainage system?
• Which chemical reaction equation represents the dissociation of hypochlorite acid?
• What term describes a person located at a facility who monitors the daily operation at the facility and maintains contact with the remote operator?
• Which of the following is a disease-causing organism?
• Which type of motors would be expected to have the lowest demand for a starting current?
• Which distribution valve is NOT classified as rotary valve?
• What is the acceptable oxygen concentration range before entering a confined space?
• Which statement about air-gap separation distance is true?
• On suction piping, when the pump is above the water level, which component is used to hold the prime?
• Within how many days must a certified operator notify the Department (in writing) that the operator ceases or commences operation of another facility?
• This statement is NOT correct about a pressure tap?
• Which gauge type is favored for easy integration with electronic control systems and data logging?
• Which type of gauge is most widely used in modern instrumentation?
• Regarding confined space entry, when might a self-contained breathing apparatus (SCBA) be necessary?
• What negative effect may occur on a service due to a water meter?
• Name the most common cause for public water supply contamination.
• Water hammer exerts tremendous force on a system and can be highly ____.
• Which type of single-phase motor is described as simpler and less expensive?
• Among common gauges used for measurements, which is considered the standard for modern process control due to its electronic compatibility?
• What is the name of a map that provides detailed drawings of the distribution system's zones?
• Which of the following completes the sentence: The water quality ______________ program is not in compliance?
• What is the regulatory definition of a cross-connection in a water supply? A physical connection between a public water system and any source of water or other substance that may lead to contamination of the water provided by the __________ through backflow.
• What is one disadvantage of a centrifugal pump?
• If a centrifugal pump is located above the water level, what must be provided on the suction piping to hold the prime?
• A positive bacteriological sample indicates the presence of bacteriological ______.
• Peak day demand is the greatest amount of water used for any one ______ in a calendar year.
• Which pump is commonly used as a booster pump in a water distribution system?
• Which statement accurately describes the remote operator distance requirement?
• Which contaminants does the Monitoring Assistance Program monitor?
• When grease contaminates a motor winding, what is a likely consequence?
• This type of chemical classification may weaken, burn, or destroy a person's skin or eyes and can be either acidic or ______.
• Which valve is most commonly used to isolate a small or medium sized section of a distribution system?
• Chlorine gas causes edema of the ______________.
• Continuous leakage from a mechanical seal on a pump indicates the seal should be
• How far from the edge of a hole must you place the spoil from an excavation?
• An on-site operation is performed by an operator who visits a facility at least what frequency to ensure proper operation?
• Generally, how long will a water storage tank's interior coating protect the interior?
• The interior coating of a storage tank typically lasts in which time range?
• List the correct order for placing shoring equipment in a trench. Starting at the top move to the bottom of the trench and ____________ to remove it.
• Which chemical is used to de-chlorinate a water sample that is analyzed for bacteria?
• Which statement about gate valves is true?
• What is the frequency that a remote operator must inspect a grade 1 or grade 2 water treatment plant or distributes groundwater?
• What maintains contact between the two surfaces of a mechanical seal?
• The pH scale ranges from zero to 14. Which option correctly represents this range?
• For instruments requiring rapid digital readouts, which gauge is typically used?
• Which of the following is NOT an element of the elementary business plan?
• How should an operator store an empty chlorine cylinder? ____________, tagged as empty.
• What is the commonly cited range of the pH scale?
• How close must the remote operator of a facility be to the facility to legally operate it?
• What effect does chlorine gas have on the sense of smell? It produces olfactory ___________.
• Which gauge type provides a direct digital signal and is widely used in instrumentation?
• What does a backsiphonage condition usually cause?
• What are the three elements that make up the elementary business plan?
• What is the minimum inspection frequency for a remote operator at a grade 1 or grade 2 groundwater-producing facility?
• What is the reporting limit for all regulated VOC's?
• Chlorine exposure can cause which throat symptom?
• How often should ladders and climbing devices be inspected by a qualified individual?
• Who is allowed to conduct a sanitary survey?
• The initial monitoring year is defined as the calendar year designated by the Department within a compliance period in which a public water system conducts initial monitoring at a point of entry. Which element best describes this year?
• True or false: A remote operator is allowed to operate at any Grade 1 or Grade 2 facility.