Drainage piping serving fixture which have flood level rim located below the elevation of the street sewer shall be protected from backflow by providing a _____., AVB, check valve, backwater valve, back flow valve, A water meter that physically displaces the moving measuring element in direct relation to the amount of water that passes through. Its size ranges from ½” to 2”., Single-Jet Meter, Turbine Flow Meters, Positive Displacement Meter, Multi-Jet Meters, The _____ shall be responsible for the maintenance of plumbing systems., Plumber, Builder, Building department, Owner or owner's agent, To reduce dependence on motorized systems to supply and distribute potable or non-potable water within the building, thus help reduce energy consumption, overhead or elevated water storage systems are used, provided there’s a ____ fire reserve over and above the average daily demand supply., 40%, 50%, 20%, 15%, Open pipe protruding above the surface of a liquid in a container, such as a distillation or absorption column or a toilet tank, to control the height of the liquid, discharge pipe, inlet pipe, return pipe, overflow pipe, The color coding for drainpipes manufactured with toxic component., brown, green, or yellow, gray, orange, or black, orange, gray, or white, gray, orange, or brown, In plumbing systems, a tank that operates at atmospheric pressure is commonly referred to as _____., Vacuum Tank, Gravity Tank, Expansion Tank, Hydropneumatic Tank, The vertical clearance of Water pipes crossing sewer or drainage piping constructed of clay or materials, not approved for use within a building to above the sewer or drainpipe., 0.45 m, 0.6 m, 0.3 m, 0.15 m, The maximum temperature of water that can be discharged under pressure directly into any part of a drainage system., 140 F, 180 F, 160 F, 120 F, What is a common early sign of a hidden pipe leak in walls?, Vibration of pipes, Unusual noise, Reduced water pressure from faucet, Mold growth or damp spot in walls, Who ratified the RA 1378 Plumbing Law of the Philippines?, Joseph Ejercito Estrada, Ramon Magsaysay, Corazon Aquino, Carlos P. Garcia, Which of the following is not a typical method of well rehabilitation?, high-pressure jetting, chemical disinfection, gravel pack installation, mechanical brushing, What do you provide in piping subjected to varying temperatures?, expansion joints, pressure-relief valves, gasketed joints, water hammer arrester, A registered Master Plumber shall maintain a/an _____, consistent with an honorable and dignified pursuit of his/her profession., good moral and right conduct, professional bearing, executive disposition, moral integrity, All premises intended for human habitation, occupancy, or use shall be provided with a supply of _____ and _____ water neither connectd with unsafe water supplies not subject to hazards of backflow or back-siphonage., sufficient; high-quality, potable; pure, adequate; sanitary, pure; wholesome, If a gas furnace is not properly vented, what is the most dangerous fume it can produce?, sulfur dioxide, nitrogen oxide, carbon monoxide, phosgene, What is the primary objective of a gas piping system?, to pressurize the water line, to safely delivery a volume and pressure of gas to appliances, to replace the venting pipe lines, to mix the gases, The reliable method for measuring and cutting galvanized steel pipe., face to face, cutting using hacksaw, consult tables, using formula, What is the total DFU for a residential bathroom with 1 Shower, 1 Floor Drain, 1 Lavatory, and 1 Water Closet?, 13, 9, 7, 11, Among the choices, identify which one is a weak acid., Muriatic, Yogurt, Ammonia, Lemon, Pipe joints and tape shall only be applied on _____., male threads, caps, female threads, screws, According to RNPCP, one trap may serve a set of not more than _____., 3 bathtubs, 3 laundry tubs, 4 lavatories, 2 water closets, Water pipes and building sewer, and storm drainage constructed in clay material or not approved material for use within a building shall not be run or laid in the ______., same elevation, same ground level, same bedding, same trench, What is the maximum distance between the fixture trap and the vent in roughing-in for a lavatory that is to have a 1-1/4" drain?, 3 ft, 1.5 ft, 2.5 ft, 2 ft, Which of the following systems need the least additional water volume?, dry pipe system, preaction system, wet pipe system, deluge system, It is a colorless gas with offensive odor., Methane gas, Hydrogen Sulfide, Hydrogen, Sulfur Dioxide, Changes in direction of drainage piping shall be made by the use of approved pipe fittings and shall be of angles presented by the following bends, except _____., 22 1/2° bend, 72° bend, 45° bend, 60° bend, Rigid vertical pipe should be supported at every _____., 4 ft, 6 ft, 3 ft, 5 ft, In threading pipes, you'll use the die-carrying part of the threading. What do you call this part?, teeth, cog wheel, stock, pawl, What is the minimum water supply connection size for bathtub?, 32 mm, 38 mm, 25 mm, 13 mm, Telephone fixtures with a cord at least _____ long are recommended for use in showers and bath-tubs., 1.7 m, 1.5 m, 1.0 m, 1.2 m, This involves monitoring the pressure decline within a well after a period of constant injection., pump rate test, pressure-bearing test, fall-off test, drawdown test, How much is the installation if you install additional 1 water closet, 1 lavatory, and 1 shower head on top of a plumbing unit?, 370 pesos, 40 pesos, 420 pesos, 55 pesos, Which valve or fitting yields to the least pressure loss?, Gate valve, Ball valve, 45º elbow long radius, Union, All of the following are used in a site drainage system except _____., roof drain, catch basin, manholes, drain inlet, An adjustable wrench:, is also called a monkey wrench, has an adjustable jaw with teeth, doesn't have an adjustable smooth jaw, has an adjustable smooth jaw, A gas piping system is newly installed. How can a plumber verify if there is a leakage?, apply a soap solution on the pipe surface, conduct a peppermint test, use a lighter to detect escaping gas, perform a hydrostatic test, and monitor for 15 minutes, A 2" branch serves 6 laundry tubs. What might this installation imply?, the pipe will not be properly vented, the pipe has insufficient discharge capacity, the drainage pipe is prone to siphonage, there is no change needed since the pipe is sufficiently sized, Liquefied Petroleum Gas Code, NFPA 54, NFPA 14, NFPA 58, NFPA 72, What is the purpose of a vertical pipe support?, To minimize vibration, To support the weight of the pipe, To prevent sagging, To reduce thermal expansion stress, ASTM F656 recommends that the PVC primer be _____., blue, purple, gray, white, An installer plans for the installation of gas-fired furnace vent piping. Which is the best location for the vent termination?, in a covered breezeway with vegetation, underneath a patio or deck, on the exterior wall facing the backyard, on an exterior recessed area with lower atmospheric zone, The following are allowable water tank materials for fire protection, except _____., fiberglass-reinforced plastic, wood, steel, high-density polyurethane, Which of the following best describes a volatile liquid?, submerged in water, lighter than water, heavier than water, precipitated in water, The normal force exerted by a homogenous liquid or gas per unit of area on the wall of the container., Friction loss, Static head, Pressure, Pitch, What is the primary purpose of a cut-off wall?, To prevent collapse of a well structure, To reduce seepage beneath hydraulic structures, To redirect stormwater run-off to surface waters, To reinforce embankment of a culvert, In 2019, the World Health Assembly (WHA) approved WHA Resolution 72.7, making a global call for action for Member States, including the Philippines to improve ________________, which stands for WASH. What does WASH mean?, Water, Sanitation, and Hygiene, Wellness Advocacy, Sanitation, and Health, Water, Safety, and Health, Water, Air, Sanitation, and Health, Which pipe material should be supported every storey with each storey height no more than 15 ft?, Cast Iron, Plastic, Copper, Lead, Potable water can be used as makeup water to a rainwater storage tank, as long as _____ is provided., air gap, pressure regulating valve, overflow pipe, filter material, How much is the annual plumbing inspection fees for 3 plumbing units?, 231 pesos, 72 pesos, 160 pesos, 180 pesos, Hanger rod size for 3" pipe size, 10 mm, 19 mm, 13 mm, 16 mm, Where do you use a crowfoot?, water supply system, storm drainage system, vent piping system, sanitary piping system, Laundry equipment that does not have integral strainers shall discharge into an interceptor having a _____ or similar device., sediment bucket, grid strainer, wire basket, wire strainer, The maximum distance a gas shutoff valve may be from a gas appliance (except for range and dryer connectors) is _____., 10 feet, 15 feet, 6 feet, 2 feet, WSFU for Bathtub for private use, 2, 5, 4, 6, How is cross-connection control typically achieved in a high-rise building to prevent contamination of the potable water supply?, By installing multiple check valves at each fixture, By using an air gap at each water outlet, By installing RPZ assemblies at critical points, By installing a double check valve assembly at each floor, How many threads per inch does a cleanout size of 1 1/2"" have?, 8 TPI, 11 1/2 TPI, 18 TPI, 14 TPI, Recommended when the length of a pipe needed is more than 150 cm long wherein cutting is not necessary., Single Hub, Standard Pipe, Hubless Pipe, Double Hub, Maximum trap loading for a 38 mm pipe, 3, 8, 4, 6, In an assembly occupancy, 6 water closets and 7 urinals are the minimum required for males. The developer installed 3 additional urinals in excess of the minimum required. Considering that the developer can deduct the number of water closets, what will be the final count of the fixtures?, 5 Water Closets; 10 Urinals, 4 Water Closets; 10 Urinals, 2 Water Closets; 10 Urinals, 3 Water Closets; 10 Urinals, It shall not be directly connected to any part of a plumbing or drainage system., chemical waste, steam pipe, soil pipe, acid waste, A pipe that is connected at the downstream of the first fixture to the vent stack., Circuit Vent, Yoke Vent, Loop Vent, Branch Vent, Distance of Septic Tank to Water Supply Wells, 45.7 m, 2.4 m, 15.2 m, 30.5 m, The following are three basic necessities of life, except _____., Water, Shelter, Food, Air, Flange joints need _____ of rubber, cork, composition, sheet metal or other materials., Sealant, Neoprene, Gasket, Teflon Tape, It is a box-like collection device which is located on the exterior of the building and receives storm water on one side?, Gutter, Storm Drain, Roof Drain, Scupper, What should be the solution if a pressure tank turns on and off repeatedly while using the faucet?, repair the faucet valve, inspect the condition of air cushion, replace the pump motor, check operating pressure to adjust water intake, How many private water closets can a 2" vent pipe serve?, 8, 12, 24, 6, A gas range must be disconnected for repair. Which installation allows the gas range to be removed without interrupting the gas supply to the rest of the building?, union upstream of the appliance, appliance isolation valve, pressure relief valve, flanged joint, For the ventilation of furnace heater room, where will you place the air inlet?, near the top of the wall, near the bottom of the wall, above the furnace heater, on the roof, A drain installed to receive water collecting on the surface of a roof and to discharge it into a leader, downspout, or conductor., dome strainer, scupper drain, roof drain, gutter, All pipings, fixtures and equipment shall be adequately anchored or supported to the _____., overhead structural elements, pertinent standards and structural codes, satisfaction of the Administrative Authority, suspended anchorage system, The VSTR shall be increased by how many pipe sizes above the reconnection point of stack vent and horizontal vent?, one pipe size, two pipe sizes, one inch, two inches, This is the test on joints and connections of pipes and fittings in the plumbing system required to ensure gastight and watertight connections., Pressure Test, Water Test, Smoke Test, Leak Test, A building's house drain and sewer connection is located in a flood-prone area. What feature is recommended to be installed?, catch basin, cleanout, backwater valve, sediment trap, The first Chief of the Division of Plumbing Construction and Inspection., Fortunato H. Amosco, Jaime M. Cabase, Governor General Harrison, John F. Hass, All of the following fire extinguishers are obsolete, except _____., chemical foam, cartridge-operated loaded stream, copper or brass shell, multipurpose dry chemical, What is the DFU of a bathroom group with 1.6 gpf water closet?, 9, 6, 4, 5, A pipe that carries waste or waterborne wastes in a building drainage system, waste pipe, sewer, drainage, drain, For buildings with a crawl space of less than 18 inches clear height, or where a stack cleanout would not be accessible from within the building, the cleanout may be installed not more than _____ outside the building wall., 6 ft, 3 ft, 5 ft, 10 ft, An existing propane furnace will be connected to a natural gas supply. What should be done before the operation?, provide additional combustion air outlets, match the supply's pressure to the heater's operating pressure, provide identical burners and regulators, use conversion kit to convert the furnace, For second degree burns, what is the acceptable contact times for industrial processes?, 60 seconds, 5 seconds, 30 seconds, 8 seconds, What is the effective protection of the quality of surface water?, Isolation of the reservoirs, Treatment, Prevention of gross pollution, Care of the watershed, Which is true about solvent cement?, They do not release air contaminants., You can clean the surface with acetone., They are made from flammable liquids., It is recommended that PVC solvent cement be orange in color., An approved-type grease trap may be used as a fixture outlet and the grease trap for a single fixture when the horizontal distance between the fixture outlet and the grease trap does not exceed _____ and the vertical tailpipe or drain does not exceed _____ meters., 1.0 m; 0.45 m, 1.8 m; 0.6 m, 1.2 m; 0.75 m, 1.5 m; 0.75 m, After connecting the gas supply, the technician needs to verify the pressure along the manifold. Which instrument should be used?, barometer, manometer, psychrometer, ammeter, A cleanout shall be provided near the base of each vertical drain stack and located not less than _____ above the lowest flood level rim of the fixtures served on that level., 6", 5", 12", 2", Gate valves sized ____ shall have cast brass or bronze bodies., larger than 51 mm, larger than 102 mm, up to 51 mm, less than 102 mm, A water main breaks, disrupting the pressure in the main distribution system. What phenomenon may draw contaminants into the water main?, Water hammer, Infiltration, Backpressure, Backsiphonage, Distance of Private Property Line to Cesspool, 15.2 m, 1.2 m, 2.4 m, 1.5 m, Elevated or gravity storage tank shall be vented with a return bend vent pipe having an area not less than the area of this pipe., fixture supply pipe, up-feed riser pipe, building supply pipe, down feed riser pipe, Water piping systems are designed considering potential fluctuations in pressure based on the _____., minimum pressure, average residual pressure, maximum pressure, average service pressure, What is an allowed air test pressure for drainage and vent systems?, 34.5 kPa, 35.4 kPa, 334.5 kPa, 345.4 kPa, This is the function of a diverter feature in a tub spout., stop all flow from the faucet, divert water to the shower head, divert water to the overflow pipe, regulate the flow of water, Aerobic bacteria can survive in the subsoil not more than _____ below the surface., 50 cm, 150 cm, 120 cm, 30 cm, It is defined as the heat or energy that is absorbed or released during a phase change of a substance, Motion Heat, Sensible Heat, Latent Heat, Energy Heat, The water supply pipe between the fixture supply pipe and the water-distributing pipe, fixture branch, supply inlet, receptor, riser, Where disposal facilities are abandoned consequent to connecting any premises with the public sewer, the permittee making the connection shall fill all abandoned facilities as required by the Administrative Authority within ____., 15 days from the time of connection to the public sewer, 3 days from the time of connection to the public sewer, 30 days from the time of connection to the public sewer, 5 days before the reconnection to the public sewer, A lavatory dispenses hot water when the cold water handle is opened, and cold water when the hot water handle is opened. Which of the following explains the scenario?, partially closed valve in the hot water supply line, cross-connection between the hot and cold water supply lines, interchanged hot and cold water supply connection, insufficient pressure in the hot water supply line, What is the maximum surface temperature that will not hurt if you touch the surface?, 50° C, 49° C, 51° C, 53° C

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