Download Rhode Island Plumber Exam Questions and Verified Answers and more Exams Water Resources Planning and Management in PDF only on Docsity!
RHODE ISLAND JOURNEYMAN | MASTER PLUMBER
EXAM | ALL QUESTIONS AND CORRECT ANSWERS |
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What is the minimum and maximum length of a waste stack to a trap weir? ---------CORRECT ANSWER-----------------18" and 42" What must be installed before connecting and irrigation system to a potable water supply? ---------CORRECT ANSWER-----------------A pressure reducing backflow preventer Can combustible liquids that condense be allowed down the public sewer? ---------CORRECT ANSWER-----------------Always follow the manufacturers instructions How should a grease trap be sized when hooking it up to a commercial food waste grinder? ---------CORRECT ANSWER-----------------It should be sized to the outlet of the food waste grinder Water pipe should be buried ____________ feet underground. --------- CORRECT ANSWER-----------------4.5' underground A vent which extrudes out the side of a building should be at least _______ and ______ away from doors and windows. ---------CORRECT ANSWER--- --------------10' and 2'
In RI hot water is _________ degrees. ---------CORRECT ANSWER---------- -------110 Degrees There should be a clearance of _________ inches in front of a water closet. ---------CORRECT ANSWER-----------------21" A vent size should be determined by its ________________? --------- CORRECT ANSWER-----------------Length A vent from a bed-pan washer is __________ from being connected to a local vent. ---------CORRECT ANSWER-----------------Prohibited A backwater valve can be buried? ---------CORRECT ANSWER----------------
- False A water hammer arrestor should be used when? ---------CORRECT ANSWER-----------------In the vicinity of quick-closing valves The slip joints on a tub waste should be _____________ during a test. ------ ---CORRECT ANSWER-----------------Accessible Copper tubing 1 1/4" in diameter and above should be supported every ______ feet. ---------CORRECT ANSWER-----------------5 Feet
Unobstructed vertical distance through the free atmosphere between the outlet of the waste pipe and the flood level rim of the receptacle into which the waste pipe is discharging. ---------CORRECT ANSWER-----------------Air Gap Bored, Dug and Driven are examples of what? ---------CORRECT ANSWER-----------------Well The vertical distance from the fixture outlet to the trap weir shall not exceed ________________ and the horizontal distance shall not exceed _______________ measured from the centerline of the fixture outlet to the centerline of the inlet of the trap. ---------CORRECT ANSWER----------------- 24" and 30" How much of a vertical wall should be added to the square footage calculation of a roof? ---------CORRECT ANSWER-----------------Half the square footage of the vertical wall What is the clearance for rodding of a 6" pipe and an 8" pipe? --------- CORRECT ANSWER-----------------18" and 36" respectively A vent must connect _______________ the centerline of a waste line. ------ ---CORRECT ANSWER-----------------Above
What is a branch vent? ---------CORRECT ANSWER-----------------A vent connecting one or more individual vents with a vent stack or stack vent. What is the pressure in pounds at the base of a stack 82' high? --------- CORRECT ANSWER-----------------.434 * 82 = 35.59 psi How many gallons of water are in a tank that is 24" round and 60" high? ---- -----CORRECT ANSWER-----------------24" * 24" * .0034 * 60 = 117. Backfilling, loose earth free from rocks, broken concrete and frozen chunks shall be placed in the trench in ___________ layers and tamped in place until the crown of the pipe is covered by _______________ of tamped earth. ---------CORRECT ANSWER-----------------6" and 12" Where rock is encountered in trenching, the rock shall be removed to a minimum of ____________ below the installation level of the bottom of the pipe. ---------CORRECT ANSWER-----------------3" How many feet of 3/4 copper tubing does it take to hold 1 gallon of water? - --------CORRECT ANSWER-----------------X=1/(.0408x.5625) X=1/. X=43.57' How many roof drains are required on a roof under 10,000 square feet? ---- -----CORRECT ANSWER----------------- 2
Water Services Shall Be Installed Not Less Than: ---------CORRECT ANSWER-----------------4' 6" Below Grade Piping installed in exterior walls or areas subject to freezing must: --------- CORRECT ANSWER-----------------Insulated/Heated or Both Building Sewers connected to a public sewer shall have a minimum coverage of: ---------CORRECT ANSWER-----------------36" Below Grade A safe waste pan shall be installed ---------CORRECT ANSWER--------------- --Under a water heater 6 gallons or greater that is elevated A safe waste pan shall be at least ---------CORRECT ANSWER----------------
- 2" deep with 2" clearance around heater Water service piping and building drain/sewer shall be separated by: --------
- CORRECT ANSWER-----------------10' undisturbed compacted earth Water service separation distance is not required if: ---------CORRECT ANSWER-----------------Water line is installed minimum 12" above sewer line at highest point Distance for a septic tank/sewer to a private water supply(well) is: --------- CORRECT ANSWER-----------------50'
Where frost closure is common an increase in vent size shall take place: --- ------CORRECT ANSWER-----------------6"below the roof with an approved fitting High Hazard flood zone is: ---------CORRECT ANSWER-----------------"V" zone (subject to wave heights in excess of 3') Lead free pipe and fittings contain less than: ---------CORRECT ANSWER-- ---------------8.0% Lead Hot water is water at temperature greater than or equal to: --------- CORRECT ANSWER-----------------110 degrees Lead free solder and flux contain no more than ---------CORRECT ANSWER-----------------0.2% Lead Strainer plates on drain lines for rodent proofing must have openings: ------- --CORRECT ANSWER-----------------0.5 inches Sleeves for pipes passing through foundation walls or under footings shall be: ---------CORRECT ANSWER-----------------Two pipe size greater than the pipe passing through it
Sheet lead shall not weigh less than: ---------CORRECT ANSWER------------ -----4 pounds per square foot Sheet copper shall not weigh less than: ---------CORRECT ANSWER--------- --------12 ounces per square foot Urinals shall not be substituted for more than what percent of water closets? ---------CORRECT ANSWER-----------------67% Shower and Tub/Shower valves maximum hot water setting is: --------- CORRECT ANSWER-----------------120 degrees Maximum water temperature of a tankless heater or domestic hot water heater is: ---------CORRECT ANSWER-----------------140 degrees Maximum setting of a temperature pressure and relief valve or a combination thereof is: ---------CORRECT ANSWER----------------- 210 degrees 150 psi Minimum working pressure of a domestic water service either outside or buried is: ---------CORRECT ANSWER-----------------160 psi All hot water distribution piping and tubing shall have a minimum pressure rating of: ---------CORRECT ANSWER-----------------100 psi @180 degrees
Disinfection of the potable water system uses: ---------CORRECT ANSWER-----------------50 parts per million of chlorine for 24 hours The discharge from a reverse osmosis system enters the drainage system through: ---------CORRECT ANSWER-----------------Air gap or air gap device Sanitary sewer and storm drains for the same property can be installed: ---- -----CORRECT ANSWER-----------------Side by side in the same trench Molten lead should be poured in one operation to a depth of: --------- CORRECT ANSWER-----------------Not less than 1" A lead pour when caulked shall not recede ---------CORRECT ANSWER----- ------------0.125 inches Cleanouts for horizontal drains and building sewers 6" and smaller shall be located every: ---------CORRECT ANSWER-----------------100 Feet Building sewers 8" and larger manholes must be installed every: --------- CORRECT ANSWER-----------------400' Each fixture trap shall have a trap seal of not less than: ---------CORRECT ANSWER-----------------2"
When rock is encountered in trenching rock will be removed to a minimum of: ---------CORRECT ANSWER-----------------3" below the installation level Hanger spacing for ABS pipe is: ---------CORRECT ANSWER----------------- 4' Water testing of a drainage system requires a: ---------CORRECT ANSWER-----------------10' head Sizing of storm drains for Rhode Island is based on: ---------CORRECT ANSWER-----------------2.6 inches of rain per hour The Board of Appeals consists of how many members? ---------CORRECT ANSWER----------------- 5 Tempered water is water having a temperature range of: ---------CORRECT ANSWER-----------------85 degrees to 110 degrees A casing is not required with what type of well? ---------CORRECT ANSWER-----------------Driven Backflow for an automatic clothes washer is prevented by: --------- CORRECT ANSWER-----------------Integrally installed air gap or backflow preventer
Waste from an automatic clothes washer discharges through an --------- CORRECT ANSWER-----------------Air Break Water connection to a bidet protected by an ---------CORRECT ANSWER--- --------------Air Gap or Backflow Preventer Water connection to a dishwasher is protected by an ---------CORRECT ANSWER-----------------Air Gap or Backflow Preventer Roof drains shall have strainers extending above the roof a minimum of: --- ------CORRECT ANSWER-----------------4" Separate toilet facilities are not required when ---------CORRECT ANSWER-----------------There are 15 or less employees Minimum pitch for 2 1/2" piping and smaller is: ---------CORRECT ANSWER-----------------1/4" Minimum size wet vent piping is: ---------CORRECT ANSWER----------------- 1 1/2" What is the minimum supply tube to a one-piece toilet? ---------CORRECT ANSWER-----------------1/2" OD
Length (feet) = ---------CORRECT ANSWER-----------------Capacity / .0408 x diameter (feet) squared Capacity (gallons) = ---------CORRECT ANSWER-----------------.0408 x diameter (inches) squared x L (feet) Capacity (gallons) = ---------CORRECT ANSWER-----------------.0034 x diameter (inches) squared x L (inches) Waste from Commercial Dishwasher ---------CORRECT ANSWER------------ -----Air Gap Laundry Stand Pipe ---------CORRECT ANSWER----------------- 18 - 42" Min 2" Phenuematic Vent size for Sewage Pumps ---------CORRECT ANSWER---- ------------- 1 - 1/4" How many feet does a roof ledge or vertical wall add to roof area --------- CORRECT ANSWER-----------------1/2 of Roof Area How far does sanitary vent have to be from property line ---------CORRECT ANSWER-----------------10 Feet
Vent from window Can be How many feet from window horizontally and vertically ---------CORRECT ANSWER-----------------10' and 2' Testing With Air ---------CORRECT ANSWER-----------------5PSI 15 Mins What kind of backflow on irrigation setup ---------CORRECT ANSWER------- ----------atmospheric type vacuum breaker, a pressure type vacuum breaker or a reduced pressure principle back flow preventor. How many times to inspect back flows ---------CORRECT ANSWER---------- -------Yearly Testing Back flows Should Happen When ---------CORRECT ANSWER------ -----------Install, Repairs, and Annually Drainage Fixture Unit on Lav ---------CORRECT ANSWER----------------- 1 Drainage Fixture Unit on Res. Washer Machine & Bathub --------- CORRECT ANSWER----------------- 2 Drainage Fixture Unit on Res. Toilet ---------CORRECT ANSWER------------- ---- 4
You Vent a sink to prevent what? ---------CORRECT ANSWER----------------- Siphonage You need to pay the prevailing wage on state jobs when you are over what Amount? ---------CORRECT ANSWER-----------------$1, 4" Pipe 150 Feet Long, How many Gallons? ---------CORRECT ANSWER--- --------------230 Gallons A master plumber employs 3 master plumbers, and 6 journeyman. How many apprentices can he have. ---------CORRECT ANSWER----------------- 10 Maximum flow rate at a 60PSI Lavatory ---------CORRECT ANSWER--------- --------2.2GPM how much gallons of water in a cubic foot ---------CORRECT ANSWER------ -----------7. On a commercial Sewage ejector what is required? ---------CORRECT ANSWER-----------------B+C--Ball Valve/Check Valve What is defined as public work in RI? ---------CORRECT ANSWER------------ -----Any Renovation to a public Building.
