Journeyman Plumbing Exam Questions and Answers 100% Solved

Journeyman Plumbing Exam Questions and Answers 100% Solved Travel - answerThe Distance from the initial offset to the second fitting Advance - answerDistance parallel to the pipes between the offset fittings Offset - answerDistance the pipe is offset from original position to new position Rolling offsets formula - answerTravel = Rise x 2 = Spread x 2 What are the three ways water is present? - answerSolid - Ice Liquid - Water Gas - Steam Pressure formula? - answerPressure= Head x .434 Head Formula? - answerHead = Pressure x 2.3 Calculate the travel of 45 degree offset with a rise of 8" and a spread of 20" - answerTravel = 21.54 x 1.414 = 30.45 Answer = 30 1/2" Pressure is 60 psi, you must run a water service to a house built on a 30 foot rise. What is going to be the pressure at the house? - answerPressure = Head x .434 30 x .434 = 13.02 loss ( Uphill ) 60 - 13 = 47 Answer = 47 psi Volume of a pipe formula? - answer.0408 x D^2 x L Calculate the volume of a tank ( pipe ) 20 feet in height, with a diameter of 48" - answerAnswer = 434,294,78 cu inches * when we have cubic inches, must multiply volume by 231 (1880.06 gallons x 231) Calculate 1 1/2" pipe with an advance of 48" - answerAnswer = 64 7/8 " Travel = 1.414 x advance 1.414 x 48 = 67 7/8 " Minus 3 ( 1 1/2 for both fittings ) = 64 7/8" Payment formula? - answerPayment = Base x Rate Rate formula? - answerRate = Payment divided by Base You estimated a job at $2195, you need $900 upfront, what is the percent you collect upfront? - answerAnswer = 41% Rate = 900 divided by 2195 = 41% When calculating offsets, what must be given? - answerOffset(Base) and Advance(altitude) When can you use PVC schedule 40 water pipe? - answerCold Water distribution systems When can you use CPVC water pipe and fittings? - answerCold + Hot water distribution water systems What is the blue print symbol for cold water? - answerLong line - long line - Long line - Blue print symbol for hot water return line? - answerLong line short line short line long line Potable Water, Sanitary Drainage, Fuel Gas piping, Storm Water. Which one is not included in Plumbing Systems in buildings? - answerFuel Gas Piping What is Galvanic action? - answerElectrolytic chemical reaction between dissimilar metals such as copper and iron What is the most common scales used in building drawings - answer1/8" = 1' and 1/4" = 1 ' Wall hung water closet bowls shall be? - answerRigidly supported by concealed metal supports On a gas water heater, what is a thermocouple? - answerSmall electric generator Difference between a sink and a lavatory? - answerSinks = functional units Lavatory = Washing fixture How are drainage and venting in buildings larger than 5 buildings larger than 5 stories high tested? - answerYou test each 5 story section with a 10 ft head of water What prevents a chemical sink from being damaged? - answerContinually running water and being manufactured out of chemical resistance materials What is the purpose of a dip tube on a water heater? - answerTransfers water from inlet to bottom of tank and helps prevent backsiphonage by having small hole at the top of the dip tube Air test on water supply lines? - answer1 1/2 times the working pressure or 150 psi, which ever is larger What is the type of heating element used in electric water heaters? - answerResistance heating elements Primary purpose of vent line in a water closet is? - answerPrevent loss from trap seal What are the 2 primary water sources for public potable drinking water? - answerSurface and ground water What is a cross connection? - answerWhen 2 separate piping systems one potable and one undesirable flow into each other Example: Garden hose attached to a silcock with the other end lying in a cesspool What is the hydrologic cycle? - answerA continuous exchange of water among atmosphere, the earth, and water bodies What device can be used to add a small amount of water to a floor drain trap to ensure an adequate trap seal? - answerTrap Primer What temperature is necessary for brazing and then adding the filler? - answer840 degrees Fahrenheit Three dimensional drawing of a plumbing system is called? - answerIsometric Most common individual vent is called? - answerA continuous vent A vertical pipe installed to provide circulation of air to and from the drainage system is called? - answerA Vent Stack Drain fixture unit rating for a kitchen sink? - answer2 DFU Drain Fixture Unit The fitting that mounts under the drain plug on a bathtub waste and overflow is called? - answerWaste Shoe What is the maximum volume of water to flush a water closet? - answer1.6 gallons Energy Policy Act of 19