Journeyman Plumbing Test Study Guide - Q & A with Complete Solutions Water heater discharge piping serving a pressure relief valve, temperature relief
... [Show More] valve or combination thereof shall terminate not more than ______ above and not less than ______ above the floor or flood level rim of the waste receptor. 6 inches two times the discharge pipe diameter Where a storage tank-type water heater or a hot water heater storage tank is installed in a location where leakage will cause damage, the tank shall be install in a galvanized steel pan having material thickness of _____ not less than .0236 inch (No.24 gauge) Water heater/storage tank pan size... not less than 1 1/2 inches in depth and sufficient size and shape to recieve all dripping condensate. Water heater/storage tank pan shall be drained by an _______ indirect waste pipe having a diameter not less than 3/4 inch (19mm) Hot water storage tanks shall be insulated to ____ R-12.5 Individual water supplies are of the following types: ____ drilled, driven, dug, bored wells. spring, stream, or cistern. Surface bodies of water and land cisterns shall not be sources of individual water supply unless _____ properly treated by approved means to prevent contamination. Pumps in an individual water supply system shall be constructed and installed so as to prevent ____ contamination from entering a potable water supply through the pump units. Where water supply pumps are installed in basements, such pumps shall be mounted on _____ a block or shelf not less than 18 inches above the basement floor. Size of water service pipe: not less than 3/4 inch (19.1 mm) in diameter Required separation distance of water supply pipe and building sewer pipe not less than 5 horizontal feet of undisturbed or compacted earth. Required separation distance of water supply pipe and building sewer pipe shall not apply, when? if they cross as long as water service is sleeved to a point not less than 5 feet horizontally from the sewer pipe center line on both sides of such crossing. or where bottom of water pipe located within 5 feet of the sewer, is not less than 12 inches above the highest point of the sewer. Potable water service pipes shall not be located in, under, or above ______ cesspools, septic tanks or drainage fields, or seepage pits. A fixture supply pipe shall terminate not more than ____ 30 inches from point of connection to the fixture Where street water main pressures fluctuate, the building water distribution system shall be designed for ____ the minimum pressure available Water pressure in a building shall not exceed ____ 80 psi static Water-hammer arrestors shall be installed, where? where quick closing valves are utilized. Water hammer arrestors shall conform to ____ ASSE 1010 Pipe and fittings, including valves and faucets, utilized in the water supply system shall have not more than _____ percent lead content. 8 Pipe ,fittings, joints, valves, faucets and fixture fittings utilized to supply water for drinking or cooking purposes shall comply with NSF ____ and shall have a weighted average lead content of ____ percent or less. 372 .25 Water pipe or tubing, installed underground and outside of the structure, shall have a working pressure rating of not less than ____ at ____ 160 psi 73.4°F Water distribution pipe shall conform with NSF 61 Hot water distribution pipe and tubing shall have a pressure rating of not less than _____ at ____ 100 psi 180 °F Branch tubes shall not restrict the flow in the ___ run tube Mechanically extracted outlets shall have a height not less than ____ 3 times the thickness of the branch tube wall Manufactured nipples: mechanical joints shall only be installed in ____ underground systems, unless otherwise approved. T or F: solvent-cement joints shall be permitted above or below ground. True Brazed joints shall be grazed with ____ a filler metal conforming to AWS A5.8. The joining of water supply piping shall be made with ______ solders and fluxes. lead free (.2 % lead) Schedule 80 or heavier pipe shall be permitted to be threaded with dies specifically designed for plastic pipe, but the pressure rating of the pipe shall be reduced to ____ 50% Covers of gravity tanks shall be vented with a return bend vent pipe with an area not less than ___ the area of the down feed riser pipe. Gravity tank vent shall be screened with ___ a corrosion resistant screen of not less than 16 by 20 mesh per square inch. Water supply tank overflow shall discharge at a point not less than ____ 6 inches above the roof/roof drain; floor/floor drain; or over an open water-supplied fixture. Potable water inlet to gravity tanks shall terminate so as to provide an air gap not less than 4 inches above the overflow. Prohibited locations of potable supply tanks: directly under any soil or waste piping or any source of contamination. All water pressure tanks shall be provided with a _____ valve at the top of the tank that will operate up to max water pressure of _____ psi and max temp of ____ [Show Less]