Plumbing May 10, 2024 by Brian Klein /27 0 votes, 0 avg 0 Plumbing 1 / 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! 2 / 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! 3 / 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. 4 / 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! 5 / 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! 6 / 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! 7 / 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! 8 / 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! 9 / 27 Who should work on the plumbing in your operation? A licensed plumber A certified technician Neither Both Wrong! Thats right! 10 / 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! 11 / 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! 12 / 27 How can backflow be prevented? By creating an air gap Install a backflow prevention device Neither Both Wrong! Thats right! 13 / 27 Why are air gaps critical for safe water? To make backflow impossible To allow back-siphonage Neither Both Wrong! Thats right! 14 / 27 What is the best way to prevent backflow? Never create a cross-connection Avoiding cross-contact Neither Both Wrong! Thats right! 15 / 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! 16 / 27 What can happen if drinkable water becomes mixed with unsafe water? Foodborne illness outbreak Mineral deposits Neither Both Wrong! Thats right! 17 / 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! 18 / 27 What is a buildup of grease in pipes called? Grease condensation A grease trap Neither Both Wrong! Thats right! 19 / 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. 20 / 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! 21 / 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! 22 / 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! 23 / 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! 24 / 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 25 / 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! 26 / 27 Why is a cross-connection dangerous? Backsiphonage can occur Backflow can occur Neither Both Wrong! Thats right! 27 / 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! Your score is LinkedIn Facebook Twitter Restart quiz Try another practice test
