Identify how many are the 4” x 4” x 2” Wye reducer fitting., 8, 10, 7, 9, It refers to a diagnosable illness whose cause and symptoms can be directly attributed to a specific pollutant source within a building, Sick Building Syndrome, Building Related Illness, Building Exposure Syndrome, Building Occupational Illness, Shower seat should be built of the following except _____., hinged pull-down, removable, spring-loaded, all are acceptable, Slaughtering room and dressing room drains shall be equipped with approved separators. What must the separators be capable of separating?, scales and innards, bottled fluids, feathers and entrails, blood and oils, Which of the following fixture connections is a prohibited practice?, A bar sink draining to an air gap, A drinking fountain with indirect drain, A water closet connected to a 4" trap, Installing trap seal primer on floor drains, A chilled water pipe is installed with thick insulation under a ceiling slab. What is the appropriate support?, pipe shoe, pipe clamp, trapeze hanger, clevis hanger, There are several reasons why soil stacks are not allowed in columns. Which is not the reason?, Cracks and leaks cannot be detected, The Gas emitted will deteriorate concrete, Pipes will interfere with reinforcing Bars, The size of the columns will be larger, Approximate capacity of 1" pipe in US gallons per foot is _____., 0.0416, 0.0408, 0.0402, 0.0415, The following ways are to prevent hazards while using power tools, except for one:, Not keeping hold on the switch button while carrying a plugged-in tool, Using heavy rubber grips when using heavy jackhammers, Avoiding chisels and wedges with mushroomed heads, Using wrench with sprung jaws so that the wrench will not slip, If water closet remains clogged after using an auger, what will be the next step?, Remove the water closet to inspect, Use accordion plunger, Pour chemical drain cleaner, Flush with hot and soapy water, When using compression fittings to connect plastic to copper pipe, _____ is crucial., application of teflon tape, heating of the pipes prior to the jointing, usage of solvent cement, deburring of pipe, What should you use to remove the gloss on the ends of a rigid plastic pipe?, Sandpaper, Knife, Steel wool, Emery cloth, When designing overhead water tanks, which rule applies when determining the size and capacity of cistern compared to the overhead water tank especially when using large capacity overhead tanks., No cistern is needed for large capacity overhead tanks., Overhead is the same as cistern., Cistern is bigger than overhead water tank., Cistern is smaller than overhead water tank., In a residential setting, which is prohibited?, Two-way Trap, Grease Trap, Gully Trap, Building Trap, When threading a galvanized pipe, back off the stock handle _____ turn after each complete turn around the pipe., 1 turn, 2 turns, 1/4 turn, 1-1/2 turns, In the figure, there are 3 three-quarter bathrooms. How many P-traps and fixtures are to be installed?, 18, 21, 17, 23, Name that tool which is made of boxwood, dogwood, or lignum vitae, and it is used for dressing or working sheet lead, lead pipe bends, and bath traps., turnpin, dresser, drift plug, shave hook, To ensure a leak-proof pop-up drain in a hot tub, what should be used?, silicone gasket, escutcheon, flat washer, rubber gasket, This type of vent is commonly used in beauty parlor, barber shop, dental clinic, and operating room., Utility Vent, Local vent, Relief Vent, Looped Vent, What is the suitable gasket material for gas piping?, leather or asbestos composition, metallic, rubber or asbestos composition, sheet rubber or asbestos sheet packing, Identify "A" in the figure, Dry Vent, Vent Stack, Main Vent, Vent, What do you call that storage suitable to preserve and care plumbing tools properly?, Tool kit, Tool back, Tool Chest, Tool Chute, DPWH will herald the achievement of the Philippine Government's commitment to reduce carbon emissions by _____ in 2030., 40%, 50%, 60%, 70%, A tariff mechanism granted to Maynilad to recover or compensate for fluctuations, as the case may be, in the foreign exchange rates arising from Maynilad’s payment of foreign currency-denominated concession fees and loans, FCDA, MBDA, EPA, CPIA, What pipe cutter will you use for PVC if you wish to have clean and square cut?, coping saw, hinged cutter, ratchet cutter, hacksaw, To maintain water pressure in all floors of a building/structure, what should be the design of the tank?, The pneumatic tank must have a corrosion-resistant material to avoid cavitation., A suitable pressure switch shall stop the pump when the cut-in pressure is attained., The pump is installed before the underground water cistern., The pneumatic tank shall be designed for twice the maximum total dynamic pressure required., Identify "A" in the figure, main vent, waste pipe, soil pipe, drain pipe, What must be the reason why an instantaneous hot water sometimes does not produce hot water?, The unit needs time to pre-heat water., There is not enough power supply., The water source is too far from the heater., There is not enough water flow., Identify the tool #4, Close Quarters Tubing, Quick Acting, Enclosed Feed Tubing, Screw Feed Tubing, In a back-to-back bathroom configuration, how many total valves and faucets should you buy for installation?, 10, 11, 7, 9, Which of the following scenario is inappropriate for hand protection?, gloves for electrical workers shall be made of rubber, natural or synthetic rubber gloves can be used for handling corrosive substances, gloves shall be worn during operating drills and punch presses, gloves shall allow free movement of the fingers, Identify the Plug Valve., F, D, G, E, A wrong pipe size diameter was installed as the main pipe of the building. What is the best way to proceed?, Revise the hydraulic computation to justify the installed pipe, Replace the pipe diameter as specified in the plans, As long as the pipe size still complies with the hydraulic requirements, a change in pipe size can be accepted, Allow the installation, provided that it passes the water pressure and leak test, Which of the following is not used to secure a vessel sink to a countertop?, mounting ring, silicone adhesive, washer, o-ring, To tighten a faucet joint in a confined space under a sink, which tool is the most appropriate?, end pipe wrench, basin wrench, adjustable wrench, pipe wrench, Single wall metal vent connectors, shall be provided with clearances from combustible material of not less than ______., 3", 6", 4", 5", What is the recommended faucet for persons with disabilities?, Knob-style faucet, Single lever faucet, Quarter-turn valve, Compression-type faucet, What is the mounting height of bidet to be used by a person with disability?, 0.35 to 0.40 m, 0.40 to 0.45 m, 0.45 to 0.50 m, 0.50 to 0.55 m, What is the practical method of repairing or correcting leak of plastic pipe?, cut and insert coupling, cut and provide bushing, replace the pipe, insert additional bigger pipe, The size of the standpipe shall have a diameter of at least 4 inches in buildings in which the highest outlet is _____ above the fire service connection., 23 meters or more, less than 23 meters, 23 meters or less, more than 23 meters, What type of valve is typically used in gas appliances?, pressure-reducing valve, ball valve, butterfly valve, gas cock, What installation method conserves the heat of the water inside a bathtub while in use?, add fiberglass insulation in or around the body of the bathtub, ensure the drain and overflow are properly sized, choose a bathtub with large surface area, route uninsulated metal piping adjacent to bathtub, Pilots and burners of gas-fired water heaters (except sealed combustion chambers) in residential garages shall be _______ above the floor level., 6", 24", 18", 12", Identify "A" in the figure, Mounting height, Flood level, Flood level rim, Overflow line, What might be the reason why a hacksaw keeps breaking?, too much pressure is applied on the return stroke, using lower tpi for faster cut, the blade has lost its sharpness, not lubricating the blade, Which of the following is the usual solution in repairing leaks at the base of disc, cartridge and ball type faucets?, replace valve seat, replace o-ring, replace washer, put lubricant, What tool do you use for threading a very short pipe?, Pipe Die, Nipple Chuck, Hollow Juniper, Receding Geared Threader, Identify the fitting A, Coupling, Adapter, Socket, Nipple, Which of the following has the least impact on the curing time of solvent cement?, Installation orientation, Temperature, Pipe size, Pipe wall thickness, The wetted perimeter and cross-sectional area of a channel is 5 m and 9 sq. m respectively. What is the hydraulic radius of the channel?, 1.80 m, 0.56 m, 1.27 m, 2.10 m, What is the most appropriate use for offset pipe wrench?, to grip and turn nuts and bolts in confined space, to turn overhead pipework in restricted spaces, to extract recessed nipples in walls, to change shower valves, The following symbols pertain to a screwed joint, except _____., C and F, D and F, C only, D only, Identify the screwdriver slot "C", pozidriv, hex, torx, spline drive, Identify the tool G., Mole wrench, Cutting Pliers, Duckbill Pliers, Needle Nose Pliers, What material is applied under the flange for installation onto a lavatory and/or sink?, Plumber's putty, Pipe joint compound, Rubber washer, Rubber gasket, For the temporary accommodation of construction workers, which of the following arrangements is incorrect?, kitchen is within the living accommodation, drying area of laundry should be on a sheltered area, supply of potable water at least 80 to 180 liters per person per day, laundry area is within covered space, Which sustainable approach reduces cooling load in a residence?, using roof ventilator, choosing a high-reflective roof paint, installing high-powered air conditioners, ensuring moisture-tight openings, In a back-to-back bathroom configuration, how many tees are used for roughing-in installation?, 7, 8, 9, 10, What makes Stillson wrench a good tool for pipes?, the smooth jaws secure the nuts and bolts, the movable upper jaw can accommodate different pipe sizes, the set torque level can secure pipes, its jaws are spring-loaded, Calculate the gradient required for a 100 mm diameter drain to run half-full at an average velocity flow of 1.2 m/sec. (Take C=55)., 1 in 50.5 m would be required., 1 in 62.5 m would be required., 1 in 52.5 m would be required., 1 in 65.5 m would be required, What is the importance of headwall in a culvert?, to structurally support the road, embankment, or canal that sit above the culvert, to manage the velocity and intercept the water flow, to prevent flooding, hold water, and measure water flow, to stabilize the embankment and prevent erosion, In a coastal environment, galvanized steel pipe is used for a plumbing system. What would you recommend?, No change is needed as galvanized steel pipe is acceptable, Coat the pipe with epoxy, Apply extra layer of protective coating on the galvanized steel pipe, Replace with stainless steel or other corrosion-resistant material, Which type of pipe fitting is used in a drainage system to allow smooth flow of wastewater with minimal resistance?, Long sweep elbow, Side outlet down, Side outlet up, Sanitary Tee, Which installations require a sediment trap?, ranges, boilers, tankless water heater, furnaces, gas appliances in fireplace, furnaces, gas dryer, boilers, ______ is an effective heating medium and is adaptable to almost any type of building., Water, Electricity, Oil, Steam, A kind of fitting used to connect sections of pipe in straight run or riser. Both ends are internally threaded., hex bushing, nipple, socket, face bushing, What is installed in an area drain to facilitate easier cleaning?, catch basin, cleanout, running trap, valve, The following can be a cause for loss of water seal in traps except for _____., Oscillation, Vacuum, Capillary Action, Evaporation, A residence with 12 family members requires 3.6 cu. meters of cold water daily with peak demand. What is the maximum hot water probable hourly demand?, 140 liters, 110 liters, 100 liters, 120 liters, Minimum supply pipe for lavatory using PPR PN 20 is _____., 32 mm dia., 25 mm dia., 20 mm dia., 15 mm dia., Which of the following is true about CTS?, Type K with nominal size of 2 1/2" has an OD of 2 5/8"., ID of Type K is larger than ID of Type L., OD of CTS is always 1/8" larger than ID., ID of Type M is smaller than ID of Type L., An incorrect fitting was soldered to a copper pipe. What will be the solution to fix this?, cut the pipe in the joint with a tube cutter, twist the pipe and fitting, until the solder cracks, wrap the joint with a wet cloth, and strike the joint with a hammer, reheat the area until the solder melts, and pull the joints apart, A pipe length of 10 m is to be supported at every interval of 1.5 m. How many supports are to be included in BOM?, 8, 7, 6, 9, How many meals must an eating place serve in a day before it is considered necessary to have an interceptor installed?, 200, 150, 125, 100, Which of the following is incorrect about sediment trap?, sediment trap can be incorporated as part of the appliance, sediment trap can be installed on the discharge side of the appliance, sediment trap is installed downstream of the appliance shut-off valve, sediment trap can be a tee fitting with a capped nipple in the bottom outlet, In a municipality, what might be an advantage if the houses have individual septic tanks instead of a centralized STP?, odor and vermin control, treatment stages yield to cleaner effluent, low maintenance, effluent is accessible for water reuse, When plastic pipe is joined with cast-iron pipe, which of the following types of joints is acceptable?, Solvent weld, Threaded, Mechanical, Caulked, Which of the following is not true about Seasonal Energy Efficiency Ratio?, it measures the efficiency of air conditioning systems and heat pumps over an entire cooling season, it is the energy efficiency rating for room air conditioners that lists how many Btu per hour are used for each watt of power it draws, it is the energy efficiency rating for central air conditioners, it is the total cooling output of an air conditioner during its annual usage, in BTU/hr divided by the energy input during the same period, It gives a multi-sided, secure grip on all hex nuts, square nuts, unions and valve packing nuts., chain wrench, monkey wrench, spud wrench, hex wrench, How many turns does it take to operate a 4" double-disk valve?, 16.5, 16, 14.5, 15.5, A worker needs to set-up a heavy steel pipe on a power drive. Which of the work arrangement is the least appropriate?, supporting the heavy end of pipe with pipe support, using gloves to secure the end of the pipe for safety against vibration, mounting the power drive firmly to a bench to carry the load, tightening the pipe in place without any room for movement, Copper and other corrosion-resistant materials are allowed for roof drain. What another material is allowed for roof drain?, Lead, Cast iron, Galvanized iron, Aluminum, All Siamese inlet connections shall be located on a street-front of the building and not less than ____ nor more than ____ above the grade and shall be equipped with a clapper-checks and substantial plugs., 0.46 m; 1.22 m, 0.9 m; 1.2 m, 0.3 m; 1.2 m, 0.3 m; 0.9 m, Which component is designed to connect a body harness to the anchorage point?, Deceleration device, Anchorage connector, Self-retracting lifeline, Lanyard, What is the minimum supply pipe of a GI pipe?, 15 mm, 10 mm, 25 mm, 20 mm, A plumbing design specified a long hot water pipe made of plastic pipe. After months of operation, the pipe started to deform and sag. What could be the problem?, there is no pressure relief installed, there is no expansion joint, pipe jointing is incorrect, pipe diameter is small, What is the most appropriate combination of tool and technique to remove old rusty pipe without damaging the thread?, Application of soapy water and gradual turning using two wrenches, Chain wrench with light hammering to loosen the joint, Adjustable wrench and thread sealant, Pipe wrench with heat application and oil, Identify symbol C, Urinal (Stall), Water Closet (Tank-Type), Drinking Fountain (Projecting-Type), Urinal (wall-hung), A type of vent used to provide air circulation to a single fixture trap., circuit vent, unit vent, back vent, branch vent, Copper tube and fittings used for drainage and vent piping installed aboveground shall be at least _____., Type L, Type M, Type K, Type DWV, For searching for cable which is broken or lost in line., Straight Auger, Retrieving Auger, Drop Head Auger, Hook Auger, In the figure, which of the following is the purpose of "A"?, to neutralize water pressure, to avoid trap seal loss, to avoid pooling of water, to serve as adjunct overflow, A rectangular channel with depth of 300 mm and a width of 450mm has average flow velocity of 0.8 m/sec and C = 55. Calculate the gradient., 1:750 m is required, 1:650 m is required, 1:608 m is required, 1:708 m is required, Identify C, Bench Chain Vise, Top Screw Bench Chain Vise, Hinged Pipe Vise, Bench Yoke Vise, Cracks begin to develop on the pipe joint of a pipe inlet of a pump. What feature can be considered?, vibration isolation, anti-corrosion coating, pipe anchor and supports, rigid piping material, Galvanized steel pipes are generally measured by its _____., Inside diameter, Outside diameter, Developed length, Number of threads, Which is not a tool to be used when installing flushometer valve for urinal?, sealant, allen wrench, adjustable wrench, pipe wrench, What is the purpose of toolbox meeting?, to delegate work assignment, to conduct training, to hold planning session and discuss site problems for the day, to assess work and discuss safety precautions, What is the maximum length of pipe for size 150 mmØ PVC that could freely drain? Assume flow is equals to 15.9 liters per second, 0.9 m/sec velocity and chezy constant at 55. Consider full bore for hydraulic mean., 160 m, 135 m, 140 m, 150 m

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