Plumbing Study Quiz

Plumbing Quiz Directions: Questions may have more than one correct answer. 1) Older homes main drain is usually made of _____ and a newer home may have _____. a) Plastic, plastic b) Plastic, cast iron c) Cast iron, cast iron d) Cast iron, plastic e) None of the above 2) A plumbing system brings ________ water to the house. a) Waste b) Grey c) Spring d) Supply e) None of the above 3) After leaving your property waste water goes immediately to which destination? a) River system b) Sewer system c) Septic system d) Plumbing system e) None of the above 4) Which items in your house utilize the DWV system? a) Sinks b) Toilets c) Baths d) Showers e) Washer machines 5) A plumbing system takes ______ water from the house. a) Waste b) Green c) Filtered d) Supply e) None of the above 6) Another name for the main vertical waste drain is a) Stack b) Pipe c) Chimney d) Drain e) None of the above 7) Would a plugged vent inhibit drainage? a) Yes b) No c) Not sure d) None of the above 8) A couple of common supply line materials today would include a) Lead pipe b) Cast iron pipe c) PEX tube d) Copper pipe e) None of the above 9) Constructed pipe traps need to be installed on all draining fixtures. a) True

b) False c) True except on toilets d) True except on toilets and washers e) None of the above 10)Where can a homes water supply come from? a) Private well b) City supply c) Lake pump d) Sump well e) None of the above 11)Where does the city keep track of how much water you use? a) At their main office b) At a local service building c) A neighborhood meter d) A meter at the home e) None of the above 12)What does the top end of the main vertical waste drain do? a) Act like a vent b) Extend vertically out the roof c) Allow gases to escape d) Promote drain flow e) None of the above 13)What does flux help keep from happening a) Excess heat b) Corrosion c) Oxidization d) Metal melting e) None of the above 14)When cutting PVC you get the best cut using a) Hand saw b) Utility knife c) Scissors d) Abrasive disk miter saw e) None of the above 15)PVC glue needs to sit for a while after being used on two pieces so it can a) Melt the two pieces together b) Cool down because it gets hot c) Evaporates leaving a good seal d) Change color e) None of the above 16)When installed drains should slope 1/4” per 1’ a) Towards the source b) Away from the source c) They shouldn’t slope d) Drains only go vertically e) None of the above 17)For glue to stick good on PVC what steps must you do first a) Scrap of burrs b) Wipe the pipe off c) Cut grooves into the pipe d) Apply a primer/cleaner e) None of the above 18)When cutting copper pipe a plumber can use a hacksaw but will get a better cut if they use a a) Tube cutter b) Pipe trimmer

c) Pipe cutter d) Pipe shears e) None of the above 19)What type of solder should be used when working on supply lines a) Lead free b) Lead resistant c) Lead core d) Lead mix e) None of the above 20)What do you clean and sand before soldering? a) Outside of the fitting and inside of the pipe b) Outside of the fitting and outside of the pipe c) Inside of the fitting and outside of the pipe d) Inside of the fitting and inside of the pipe e) None of the above 21)Solder will be sucked into the joint when a) All flux has evaporated b) The joint is hot enough c) Several minutes has passed d) Black smoke appears e) None of the above 22)After you are done with soldering you need to quickly wipe the excess away so a) The joint is ice cold b) The joint looks nice c) Solder fills the cracks better d) Excess flux isn’t left e) None of the above 23)When you solder a 1/2” pipe you should keep the flame in contact with the solder to make it melt a) True b) False c) None of the above 24)Excess flux left on a solder joint can cause what problem a) Corrosion leading to a leak b) A sticky solder joint c) Discolored pipes d) Gross tasting water e) None of the above 25)When drains get plugged a snake/auger can be used by running it though the drain opening or a pipe _____. a) Hole b) Coupling c) Valve d) Water meter e) None of the above Questions based on information from hometime.com how-to plumbing section.