A Valve in the water line between a corporation stop and a water meter is called a - correct answer
✔✔Curb Cock
The pipe which connects the base of the stack of a sanitary sewer system is called the - correct answer
✔✔Building Drain
The pipe which is used to carry away human waste is called a - correct answer ✔✔Soil line
A toilet auger is a device used to remove toilets from their foundations - correct answer ✔✔False
The strenght of a trap is increased by installing an - correct answer ✔✔Extra deep trap( up to 4" deep
according to code for sewer or water system)
Traps are installed to prevent - correct answer ✔✔Sewer gas, offensive odor,v verman
The most critical relationship in a 3-element grease interceptor is the elevation of the _____________ in
astatic waterline. - correct answer ✔✔Inlet to the outlet
Baffles in interceptors reduce ____________ within the interceptors - correct answer ✔✔Turbulance
Interceptors are designed to ______________________________ from waste - correct answer
✔✔Separate hazardous materials or undesirable materials
Toxic waste may be _________________ before being discharged into a public building drain. - correct
answer ✔✔Diluted or neutralized
Removal of solids such as rock, metal and sand is accomplished with a _________ interceptor. - correct
answer ✔✔Sediment
,The total drop or fall permitted in a horizontal pipe from the outlet of a trap is - correct answer ✔✔Equal
to the diameter of the pipe.
The volume of waste entering a grease trap is limited by - correct answer ✔✔A flow control fitting.
The basic purpose of a plumbing fixture is to - correct answer ✔✔Act as a water seal and prevent odors
and gases from entering the living space.
When Installing a P trap the vertical distance from fixture to ________ may not exceed 24". - correct
answer ✔✔The crown weir
When ordering fittings the letter designates the - correct answer ✔✔Kind of fitting
Branch fittings are identified by right and left by - correct answer ✔✔Holding the inlet towards the
observer with the outlet down.
A quarter bend in change of the pipe direction is - correct answer ✔✔90 degrees
Spigot pipe is identified by - correct answer ✔✔Diameter, pipe weight, pipe length
Which is not a trap?
A P trap
A Running trap
A U trap
A W trap - correct answer ✔✔A U trap
Pipes and tubing are
The same
Different
, Sometimes the same
only the same when referring to copper plumbing material - correct answer ✔✔Different
When joining two lengths of pipe you only need - correct answer ✔✔You need two pipe wrenches with
the jaws in the opposite direction
Common pipe dope can be used on plastic pipe threads. - correct answer ✔✔False
Schedule 40 DWB PVC is cast the same as DWB pipe - correct answer ✔✔True
Which type of pipe is approved by NSF for potable water systems? - correct answer ✔✔ABS
Schedule 80 is equal to extra heavy cast iron pipe wall thickness. - correct answer ✔✔False
What method of measuring is used to measure a full length of pipe: - correct answer ✔✔End to end.
Which of the following methods is best used for measuring a piece of pipe with a fitting on one end. -
correct answer ✔✔End to Center
Galvanized pipe is dipped into _______ to protect its surface from abrasive and corrosive material -
correct answer ✔✔Zinc
Flux should be applied after - correct answer ✔✔Reaming
Rigid pipe is usually available in lengths of 10 or 25 feet. - correct answer ✔✔False
One eight bends are - correct answer ✔✔45 Degrees
one sixteenth bends are - correct answer ✔✔22.5 Degrees