Journeyman's Exam Questions And Answers

Journeyman's Exam Questions And Answers 1/4" - ANS Threads of drainage fittings shall be tapped as to allow _____ pitch per foot 4 lbs - ANS Lead used for safe pans shall not be less than ________ per square foot Copper Tube, Cast Iron, Stainless steel, ABS, PVC DWV - ANS Name 3 allowable materials for the DWV system "underground" 1-1/4" - 1 dfu's 1-1/2" - 3 dfu's 2" - 4 dfu's 3" 6 dfu's 4" - dfu's - ANS What are the fixture unit values for the following traps Double fixture fitting - ANS What type of fitting is used for continuous waste and venting of lavatories back to back? 1" - ANS Caulk joints for cast iron bell and spigot shall be filled with molten lead to a depth of not less than ________? Wye, Combination Wye w/ 1/8 bend, Long sweep - ANS What type of fitting or fittings can be used to connect horizontal drainage to another horizontal drainage line? - Each horizontal drainage pipe shall be provided with a cleat at its upper terminal - Horizontal run more than 100' - Each horizontal change of direction exceeding 135° - Front Main Cleanout - ANS Cleanout locations required by code 100' - ANS Maximum distance a cleanup can be spaced apart 12" 18" - ANS Minimum clearance in front of a cleanup for 2" or less Minimum clearance in front of a cleanup for 2" or more 20' - ANS Underfloor cleanup shall not be located more than _____ from an access door, trap door, or crawl hole Back Water Valve - ANS When plumbing fixtures are installed on a floor level lower than the next upstream manhole cover of the sewer, such drainage piping shall be protected from backflow of sewage by a ____________ 20 - ANS Sewage ejectors receiving the discharge of water closets or ruinals shall have a discharge capacity not less than ___ gallons per minute 2" - ANS What is the minimum size discharge pipe for an ejector installed in a single dwelling? 2" - ANS The lowest inlet connected to the ejector pump shall have a clearance of not less than ____ from the high water or starting level of the sump. Yes, with prior approval of the AHJ - ANS Can macerating toilet systems be installed instead of a sewage pump system 3/4" - ANS What is the minimum size discharge pipe for a macerating toilet system 1/4" per foot - ANS What is the minimum pitch required fora 2" horizontal drain? Swing check valve - ANS The discharge line from an ejector pump shall be provided with an accessible ___________ and gate or ball valve. Downstream of the backwater valve - ANS Where shall the gate valve be located on the discharge line on an ejector pump 8' - ANS Drainage connections shall not be made into a drainage piping system within ________ of an vertical or horizontal change in direction of a stack containing suds producing fixtures. 10' Head of water for 15 minutes 5 psi for and air test - ANS What are the requirements when testing the DWV system Water and Air? When the dwelling is more than 200' away from the sewer. - ANS When is the public sewer considered not being available? 2' away from the building - ANS At what point does the building sewer begin? DFU's - ANS How is the size of the building sewer determined? 300' - ANS What is the maximum distance allowed between approved manholes? 12" - ANS When a water pipe and sewer pipe are placed in a common trench what is the minimum distance above the top of the sewer line to the bottom of the water pipe? 12" - ANS When a water pipe and sewer pipe are placed in a common trench what is the minimum clear horizontal distance the water pipe shall be from the sewer pipe? By taking 80% of the total DFU's = 173 DFU's - ANS A 4' drainage line has to be run at a pitch of 1/8" per foot. How is the maximum fixture unit low now determined? Provide minimum requirements and standards for the protection of the public health, safety, and welfare. - ANS Purpose of plumbing code. Capped - ANS Openings into drainage or vent system excepting those opening to which plumbing fixtures are properly connected or which constitute vent terminals shall be permanently plugged or _________ in an approved manner. Owner or owners agent - ANS Who is responsible for maintaining the plumbing and drainage system in a building? Work or systems that have already been installed prior to the effective date of the existing code. - ANS What is meant by the term "existing work"? Blockages or leaks - ANS What type of work is exempt from a plumbing permit? 180 Days - ANS If work is not started, how many days is a permit valid? After it has been tested, inspected, and approved - ANS When can plumbing work be covered and concealed? Person with the permit, doing the work - ANS Who notifies the authority have jurisdiction when plumbing work is ready for inspections?