Plumbing May 10, 2024 by Brian Klein /27 0 votes, 0 avg 0 Plumbing 1 / 27 A vacuum breaker is one example of a mechanical device that will prevent backflow. What is another example of a backflow prevention device? A double check valve A reduced pressure zone Neither Both Wrong! Thats right! 2 / 27 If grease traps are NOT kept clean, dirty water can back up into the operation. What can this lead to? Contamination Odors Neither Both Wrong! Thats right! 3 / 27 What can be installed by a licensed plumber to prevent grease buildup from blocking a drain? A backflow prevention device A grease trap Neither Both Wrong! Thats right! 4 / 27 What is an example of a backflow prevention device with multiple check valves that will seal and protect your building’s clean water supply in case of a backflow? A double check valve A vacuum breaker Neither Both Wrong! Thats right! 5 / 27 Many backflow prevention devices have a way that they can be checked to see if they are working correctly. They should be checked periodically, and this should be documented. Who should check the device? A certified applicator A trained and certified technician Neither Both Wrong! Thats right! 6 / 27 What is a buildup of grease in pipes called? Grease condensation A grease trap Neither Both Wrong! Thats right! 7 / 27 Who should work on the plumbing in your operation? A licensed plumber A certified technician Neither Both Wrong! Thats right! 8 / 27 What kind of backflow prevention device works by closing a check valve and sealing the water supply line shut when water flow is stopped? A vacuum breaker Partitioning Neither Both Wrong! Thats right! 9 / 27 Which is true about backflow? Backflow can happen when pressure pushes contaminants into a drinkable water source Backflow is a reverse flow of contaminants through a cross-connection into the drinkable water source Backflow can occur when pressure in the drinkable source drops below pressure in the contaminated source All are correct Wrong! Thats right! 10 / 27 What must be done if your operation has an on-site septic system? It must be properly tested It must be properly maintained Neither Both Wrong! Thats right! 11 / 27 What can happen if plumbing is NOT installed and maintained correctly? Backsiphonage Backflow Cross-connection All are correct Wrong! Thats right! Drinkable water could mix with unsafe water 12 / 27 What example does ServSafe give of a cross-connection that can lead to back-siphonage? A faucet is installed below the flood rim of its sink A hose is connected to a faucet and left in a bucket Neither Both Wrong! Thats right! 13 / 27 What is a physical link (like a pipe or a hose) between safe water and dirty water called? A cross-connection Cross-contamination Neither Both Wrong! Thats right! 14 / 27 Where are the two air gaps in a properly designed sink located? Between the faucet and the flood rim of the sink Between the drainpipe of the sink and the floor drain Neither Both Wrong! Thats right! 15 / 27 What is it called when contaminated water flows backward (reverse) through a cross-connection and into a drinkable water supply? Backsiphonage Backflow Neither Both Wrong! Thats right! Backsiphonage and backflow are almost the same thing. Both can cause contaminated water and safe water to mix through a cross-connection. The difference is what caused the change in pressure within the buildings plumbing system. A food manager only needs to understand the basics of backflow and cross-connections and how to avoid them. 16 / 27 What is the most critical issue regarding water safety in your operation? Avoid creating a cross-connection A sink designated for handwashing Neither Both Wrong! Thats right! 17 / 27 What can cause a backflow? High water use Backsiphonage Neither Both Wrong! Thats right! High water use in one area of the operation can create backsiphonage and cause a backflow. 18 / 27 Why should a grease trap be installed in a way that makes it easy to access? So staff can clean it regularly So it's closed when NOT in use Neither Both Wrong! Thats right! 19 / 27 What device must be used when a hose is attached to a faucet? A physical barrier between hands and food A backflow prevention device Neither Both Wrong! Thats right! 20 / 27 Why are air gaps critical for safe water? To make backflow impossible To allow back-siphonage Neither Both Wrong! Thats right! 21 / 27 How can backflow be prevented? By creating an air gap Install a backflow prevention device Neither Both Wrong! Thats right! 22 / 27 Where is the air gap in a correctly designed and installed sink? Between the faucet and the flood rim of the sink Between the sink's drainpipe and the floor drain Neither Both Wrong! Thats right! 23 / 27 When a water connection (like a pipe to a hose) includes an open space that prevents dirty water from flowing backward into clean water, what is this space called? A check valve An air gap Neither Both Wrong! Thats right! 24 / 27 What is it called when high water use in one area of an operation creates a vacuum in the plumbing system that sucks contaminants back into the water supply? Backsiphonage Fecal-oral route Neither Both Wrong! Thats right! 25 / 27 What is the best way to prevent backflow? Never create a cross-connection Avoiding cross-contact Neither Both Wrong! Thats right! 26 / 27 Why is a cross-connection dangerous? Backsiphonage can occur Backflow can occur Neither Both Wrong! Thats right! 27 / 27 What can happen if drinkable water becomes mixed with unsafe water? Foodborne illness outbreak Mineral deposits Neither Both Wrong! Thats right! Your score is LinkedIn Facebook Twitter Restart quiz Try another practice test
