Cross Connection Specialist General Practice Test

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• What is thermal expansion and why is it a concern with backflow devices?
• Which device is described as a fire-system device consisting of a mainline DC assembly with a small-meter bypass DC assembly?
• Which organization administers the national BAT and CCS certification exams?
• What does BAT stand for in backflow testing?
• What are the small valves on a backflow assembly that allow a BAT to connect test equipment and isolate sections during testing commonly called?
• Which hazard category would apply to a water change in color, odor, or taste without health risk?
• Can a standard RPZ be buried underground?
• Which device protects against both backpressure and backsiphonage and is approved for non-health hazard applications?
• Fire system with no chemical additives, which detector assembly is appropriate?
• What is the general objective of the RPZ/DC test criteria for each check valve?
• Which statement best describes the relationship between Absolute Pressure and Gauge Pressure in general terms?
• Which term describes pressure measured relative to atmospheric pressure?
• What is the function of a test cock on a backflow assembly?
• What is the purpose of the annual test for a backflow prevention assembly?
• Water that is safe for human consumption, meeting all applicable health standards.
• Which equipment is used by BATs to measure differential pressure across check valves and relief valves and to connect to the test port on the assembly?
• Funeral homes are classified under which hazard level due to detergents or reclaimed water?
• Which device requires a minimum installation height above the highest downstream outlet of 6 inches?
• Can a DC assembly be used to protect against a health hazard on premise isolation?
• What is the highest outlet rule for PVBs?
• What is the orientation for installing an RPZ assembly?
• Which statement expresses the relationship between Absolute Pressure (psia) and Gauge Pressure (psig) at sea level?
• A common cause of RPZ relief valve weeping or dripping is:
• Which document is the primary technical reference for device evaluation and cross-connection control procedures?
• Which term represents total pressure including atmospheric pressure?
• Which device protects against backsiphonage only and is not approved where backpressure exists?
• Direct cross-connection is defined as:
• Which device is approved for severe health hazards?
• If a backflow test requires reporting the outcome to the CCS/purveyor, when is this notification required?
• Who can test backflow prevention assemblies?
• When is containment the preferred strategy?
• What is considered the only absolute means of backflow prevention?
• For underground RPZ installations in fire systems, which configuration is allowed?
• Non-pathogenic bacteria would be classified as which hazard?
• Which antifreeze is an industrial type and is toxic if ingested, requiring RPZ/RPDA protection?
• All testable assemblies must be tested at least how often by a certified BAT?
• What is the function of the test port on a backflow assembly during testing?
• Which element is included in a formal cross-connection control program?
• Minimum installation height above highest downstream outlet is 6 inches applies to which device?
• Fill valve as a cross-connection concern
• A backflow preventer with two independently acting check valves and a hydraulically operating, mechanically independent, pressure differential relief valve; protects against both backpressure and backsiphonage for health hazards.
• What determines which backflow preventer to install?
• Which substance would classify a cross-connection as a Severe Health Hazard?
• Which Washington Administrative Code governs cross-connection control requirements for Group A public water systems?
• On fire systems with antifreeze or foam, which backflow device is used?
• A cross-connection that may cause color, taste, or odor changes but presents no health risk is classified as which hazard?
• Which term describes the undesirable reversal of flow of non-potable water into the potable water distribution system?
• Propylene glycol in fire systems is considered a severe health hazard requiring RPZ/RPDA protection.
• What is the purpose of the test cocks on backflow prevention assemblies such as DCVA or PVBA?
• Air Gap is approved for which hazard levels?
• Above-grade backflow prevention for pesticide injection in irrigation
• Where is a backflow preventer commonly installed to protect the distribution system from a hazardous premises?
• Containment refers to protection at the meter/service connection; isolation refers to protection at which location?
• RPZ test #2 pass/fail criteria require at least how many psi differential pressure?
• Backflow caused by negative or reduced pressure in the supply piping — a siphoning effect pulling contaminants into the system.
• Which statement accurately describes PVB use in backflow prevention?
• If no chemical additives are present in a backflow system, the hazard is classified as what?
• Which components are part of a DCVA?
• Any person or agency that owns or operates a public water system.
• Which components are part of a PVBA?
• In a premises survey, what is the next step after hazard identification?
• Which backflow prevention device is described as a testable backflow preventer with a spring-loaded check valve and an air inlet valve; protects against backsiphonage only?
• 1 psi equals how many feet of head?
• Which backflow preventer is described as having two independently operating check valves with test cocks and shutoff valves; used for non-health hazards?
• What is the maximum height for RPZ above the floor generally recommended for testability?
• How does the meter bypass detect leaks?
• The USC manual edition is published in which edition?
• What is the typical minimum retention period for test reports and survey records in Washington?
• If the water head is 12 feet, what is the corresponding pressure in psi (P = H × 0.433)?
• What is the primary federal law ensuring drinking water quality?
• A backflow preventer consisting of two independently operating check valves with test cocks and shutoff valves; used for non-health hazards.
• In an RPZ, what maintains the reduced pressure between the checks?
• In an RPZ device, which description correctly characterizes the pressure relationship of the zone between the two check valves?
• NFPA 13 — Standard for the Installation of Sprinkler Systems — coordinates with which type of codes?
• RPZ test #1 pass/fail criteria require at least how many psi differential pressure?
• Shutoff valves on a backflow assembly — what is their purpose?
• Which device is a testable, spill-resistant version of the PVB; can be used on health-hazard applications where only backsiphonage is possible.
• Minimum required distance rule states the distance is the greater of 2× the supply pipe diameter or 1 inch minimum.
• Which component in the BATs test setup is used to relieve pressure from the test line during testing?
• Which backflow device is used for severe health hazards?
• In determining backflow prevention requirements, which factor affects the health hazard classification?
• Premise isolation (containment) with an RPZ is typically required for which type of premises?
• In Washington, what is the standard deadline to install a cross-connection device after notification, if there is no imminent danger?
• Which statement best describes the roles of CCS and BAT?
• Air gap function in backflow prevention
• What is the minimum installation height for an RPZ above the floor?
• Which backflow prevention device protects against both backpressure and backsiphonage and uses two independently operating check valves plus a relief valve?
• Which component on test equipment is used to slowly equalize pressure and obtain accurate differential readings?
• RPZ relief valve opens when which condition occurs?
• Auxiliary water supply
• In a PVBA, what is the function of the air inlet valve?
• What is a key concern when relief valve discharge occurs inside an RPDA vault?
• An on-site inspection of a facility to identify cross-connections and classify hazard levels is known as what?
• 1 foot of head equals how many psi?
• What does AVB stand for in backflow terminology?
• Which credential is required to perform field testing on backflow prevention assemblies?
• How many test cocks are typically present on a DCVA?
• What is a disadvantage of using an Air Gap as a backflow preventer?
• Which statement about SDWA is correct?
• As the velocity of a fluid increases, its pressure decreases; this explains how venturi effects and siphoning can create negative pressures. Which principle is this?
• What is the USC Approved Assembly List?
• Reclaimed/Recycled Water
• Which device is typically required for severe health hazards in backflow prevention?
• What is the action after receiving a failed backflow test report?
• Ethylene glycol in fire systems is a backflow hazard that requires RPZ/RPDA protection.
• In backflow prevention, which term describes a backflow prevention method that must be on the USC Approved List for testable assemblies?
• During RPZ test, what minimum differential pressure must each check valve sustain to pass?
• For boiler systems, what hazard level and backflow protection are typically required at premise isolation?
• Which NFPA standard governs the installation of sprinkler systems and is coordinated with backflow prevention codes?
• What is the term for an underground enclosure used to house backflow assemblies in some systems?
• Backflow caused when downstream pressure exceeds supply pressure, forcing contaminants back into the potable supply.
• What is the term for the difference in pressure between two points in a system, important for RPZ operation and testing?
• Which assemblies are considered testable under cross-connection control regulations?
• Backflow incident — formaldehyde at a funeral home
• What constitutes a pass for an RPZ relief valve?
• Which backflow preventer is required if backpressure is possible?
• Backflow prevention applied directly at the individual fixture or outlet creating the cross-connection is known as which protection?
• In an RPZ device, the zone between the two check valves is referred to as what, and is it labeled accordingly?
• Which device includes a small-meter bypass line for leak detection and is designed for fire protection?
• What does the term 'degree of hazard' refer to in backflow prevention decision making?
• PVB/SRVB cannot be under continuous pressure for more than how many hours in any 24-hour period?
• Backflow prevention 'in series' refers to which concept?
• DCVA vs DCDA: which statement is correct?
• Where does the RPZ relief valve discharge?
• During the PVB air inlet test, the air inlet must open at or before how many psi above atmospheric?
• What is a service connection?
• Air Gap provides which type of protection?
• Who should be notified immediately when a backflow event is discovered?
• Which statement best describes Air Gap advantages?
• The pressure in a water system when no water is flowing is called what?
• Which device is a non-testable vacuum breaker with an air inlet; must be installed 6 inches above the highest downstream outlet; cannot be under continuous pressure exceeding 12 hours?
• The classification of a cross-connection based on risk posed to the potable water system is called what?
• What is the purpose of the Safe Drinking Water Act (SDWA)?
• In a DCVA installation, how is isolation achieved on both the supply and downstream sides?
• Which condition triggers a severe health hazard classification in cross-connection control?
• Which component in the BATs test setup is used to relieve pressure from the test line during testing?
• Which step is the first in the sequence of a premises survey?
• Which device on a hose bib is described as non-testable?
• RPZ backflow preventers are typically composed of which primary components?
• What is typically required at any connection to potable supply when reclaimed water is used?
• American Water Works Association Manual M14 — 'Recommended Practice for Backflow Prevention and Cross-Connection Control.'
• What makes a backsiphonage event occur?
• Which statement about underground RPZ installation is true?
• During RPZ testing, the pressure differential across the #1 check must drop below which value before the check opens?
• What determines whether an RPZ backflow preventer is required instead of a DC backflow preventer?
• What happens if the RPZ relief valve opens to protect the system?
• Which device is used for non-health-hazard fire systems?
• RPZ protects against which hazards?
• What is a 'bleed' in testing?
• RPZ assembly components?
• Which statement best describes the placement of a backflow preventer relative to the service connection?
• RPZ relief valve remains closed during normal operation when the pressure differential between the inlet zone and the zone of reduced pressure is at least how many psi above the downstream pressure?
• The pressure remaining in a system during flow conditions is called what?
• What statement distinguishes RPZ from RPDA?
• University of Southern California — Foundation for Cross-Connection Control and Hydraulic Research; publisher of the manual of cross-connection control (10th Edition).
• Which of the following can cause false high pressure readings during testing?
• Cross-connection concern with swimming pools
• Which items are required to be included on a backflow test report?
• Backflow incident — pesticide through irrigation
• A pressure surge or shock wave caused by an abrupt change in flow velocity; can damage check valves and cause backflow is called what?
• What is the importance of the USC Approved List?
• Which backflow device is typically required for antifreeze or foam additives in fire systems?
• Which backflow prevention device is typically required when chemical additives present a health hazard?
• RPZ assembly is designed to provide protection against which hazard type?
• Which antifreeze is described as food-grade and requires RPZ protection due to health hazard?
• Which term describes water that is not safe for drinking; any water not meeting potable water standards?
• What is an indirect cross-connection?
• Hose bib vacuum breaker is best described as?
• Authority Having Jurisdiction — the organization, office, or individual responsible for enforcing the requirements of a code or standard.
• Containment is the preferred strategy when?
• Which term describes the pressure that remains during active water flow?
• For fire protection systems, which backflow assemblies may be used?
• In a closed system, the increase in water volume as water temperature rises can cause increased pressure leading to check valve problems or backpressure. This is known as which phenomenon?
• Why is testing and listing of backflow prevention assemblies important in many jurisdictions?
• When is a Pressure Vacuum Breaker (PVB) acceptable for cross-connection control?
• What is the USC 10th Edition Manual?
• A backflow preventer with a spring-loaded check valve and an air inlet valve; protects against backsiphonage only — not approved for backpressure conditions.
• Which Washington Administrative Code defines the cross-connection control and BAT certification requirements?
• What does SDWA stand for?
• If a backflow prevention device fails a test, what actions are required before returning to service?
• A fire-system device consisting of a mainline DC assembly with a small-meter bypass DC assembly; used on non-health-hazard fire systems without chemical additives.
• What is the overall goal of a cross-connection control program?
• Which antifreeze is an industrial type and is a severe health hazard requiring RPZ/RPDA protection?
• How backsiphonage can occur in an irrigation system?
• A cross-connection that may cause illness but not death is classified as which hazard?
• Backflow Assembly Tester — a certified technician qualified to field-test backflow prevention assemblies.
• For the PVB test, besides maintaining a 1.0 psi differential, what else indicates a pass?
• Which device is described as providing absolute protection with no moving parts and is approved for all hazard levels?
• Which statement about check valves is correct?
• What is the alternative name used for the RPZ assembly, defined by the zone of reduced pressure between two checks?
• Cross-Connection Specialist — a certified specialist responsible for managing a cross-connection control program.
• Backsiphonage is a condition where system pressure drops below atmospheric, creating suction that can draw contaminants into the supply. This mechanism is described by which term?
• A cross-connection condition where a substance, if consumed, could cause death or irreversible damage is classified as which hazard?
• Which term describes a physical connection between a potable water supply and any source of contamination or pollution?
• Which scenario best illustrates a direct cross-connection?
• What is the correct action when a backflow event is discovered?
• Which facility type requires RPZ or Air Gap due to a severe health hazard such as formaldehyde?
• PVB/SRVB cannot be under continuous pressure for more than 12 hours in any 24-hour period. Which option lists this correctly?
• In a cross-connection control program, what is the purpose of public education?
• What is the AWWA M14 manual?
• What is the formal water utility program called that includes legal authority, written plan, customer inventory, survey schedule, enforcement procedures, and annual reporting?
• Which features must an underground RPDA vault meet?
• USC Approval Process for assemblies involves?
• What is the primary purpose of a Backflow Test Report?
• Containment in cross-connection control refers to protection at which location?
• Backflow prevention installed at each cross-connection within a premises rather than at the service line is known as which protection?
• What is an indirect cross-connection?
• Which combination can be used together in fire protection backflow?
• Backflow risk when non-potable water is connected to potable supply is best described as:
• What is a direct cross-connection?
• Non-potable water use requires separation to prevent backflow contamination—why?
• What does CCS stand for?
• What is containment?
• The 'Manual of Cross-Connection Control' is published in which edition?
• How is continuous relief valve discharge diagnosed?
• Which entity administers the cross-connection control program in Washington state?
• Which areas are included in cross-connection control program knowledge?
• Which device also requires a 6 inch installation height above the highest downstream outlet?
• What causes water hammer in a backflow assembly?
• What is the minimum clearance below an RPZ for relief valve discharge?
• What is the primary purpose of an RPZ device in a potable water system?
• What components are included in the differential pressure gauge kit used by BATs?
• Which sequence describes the steps of a premises survey?
• Cross-connection hazards and potable supply
• The Foundation for Cross-Connection Control and Hydraulic Research is affiliated with which university?
• Which antifreeze used in fire sprinkler systems is food-grade and requires RPZ protection due to health hazard?
• What is a flood level rim?
• What does the ABPA CCS exam test?
• Which item is required on a test report to document credential information?
• What is the minimum differential pressure that the DC assembly test must meet for each check valve to pass?
• The unobstructed vertical distance between the lowest opening of a supply pipe and the flood level rim of a receiving vessel; the only absolute means of backflow prevention.
• Which of the following is NOT listed as a cause for RPZ #2 check test failure?
• A fire-system device consisting of a mainline RPZ with a small-meter bypass RPZ; used on fire systems with chemical additives (antifreeze or foam).
• What is the required differential pressure (in psi) maintained between RPZ checks?
• Containment method protecting the water system at the point of service connection using a device on the service line is called which?
• What happens if both check valves in an RPZ fail simultaneously?
• In PVB testing, the air inlet opening pressure is specified relative to atmospheric pressure as:
• Car washes are classified under which hazard level requiring protection such as Air Gap or RPZ?
• Water that is not safe for drinking; any water not meeting potable water standards.