According to the ASSE International Plumbing Dictionary, working pressure is the maximum pressure in a water piping system allowable under normal working conditions. Likewise, test pressure is the pressure applied to equipment to test its ability to operate safely at its rated working pressure.
In each issue of Working Pressure magazine, we will present you with Test Pressure — 10 test questions to test your ability to operate under normal working conditions.
This issue, we test you on backflow prevention and water quality.
BACKFLOW PREVENTION QUIZ
Questions based on the ASSE/IAPMO/ANSI Series 5000, Cross-Connection Control Professional Qualifications Standard.
According to ASSE 1060, Performance Requirements for Outdoor Enclosures for Fluid Conveying Components, freeze protection enclosures must provide protection up to a temperature of __________.
Typhoid, cholera, and giardiasis are examples of __________.
Removal of the relief valve spring on a reduced pressure principle assembly will cause the assembly to __________.
A closed 6-inch OS&Y valve with a 30-square-inch gate flow path in a closed position with 100 psig of system pressure on the upstream side of the valve and 0 psig on the downstream valve will have __________.
The pressure available at a fixture or water outlet after allowances are made for pressure drop due to friction and head loss is __________.
Backflow Prevention Quiz - January - March 2026
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WATER QUALITY QUIZ
Questions based on feature articles and columns found within this issue.
For point of use reverse osmosis systems, WaterSense now requires a minimum efficiency of _____, reduced from the _____ previously required in ASSE 1086-2022.
In the plumbing industry, water hardness is measured in _____ per gallon, abbreviated as GPG.
According to the Water Quality Association, water is classified as soft at _____ GPG, hard at _____ GPG, and very hard at anything over _____ GPG.
WaterSense Specification for Tank Type Toilets, Version 1.2, allows dual-flush models to have a full-flush volume up to _____ gallons.
Individuals certified under ASSE _____ are trained to participate in risk assessments, sampling plans, and mitigation strategies aimed at controlling Legionella and other waterborne pathogens.
Water Quality Quiz - January - March 2026
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