Plumbing Practice Problems - Questions and Answers - PDF

PLUMBING PRACTICAL PROBLEM 166. Yoke and base are made of strong, dependable iron. It has hardened alloy steel jaws and convenient pipe rest and bender. a. Bench strainer wrench b. Offset yoke vise c. Bench yoke vise d. Bench chain vise 166. Yoke and base are made of strong, dependabl...

PLUMBING PRACTICAL PROBLEM 166. Yoke and base are made of strong, dependable iron. It has hardened alloy steel jaws and convenient pipe rest and bender. a. Bench strainer wrench b. Offset yoke vise c. Bench yoke vise d. Bench chain vise 166. Yoke and base are made of strong, dependable iron. It has hardened alloy steel jaws and convenient pipe rest and bender. a. Bench strainer wrench b. Offset yoke vise c. Bench yoke vise d. Bench chain vise 167. Is an adjustable cast iron box that is flash with finished grade and its capped with removable iron cover. a. Stop cock b. Stop box c. Corporation cock d. None of the above 167. Is an adjustable cast iron box that is flash with finished grade and its capped with removable iron cover. a. Stop cock b. Stop box c. Corporation cock d. None of the above 168. Is a fitting or device that, when propably vented, provides a liquid seal to prevent the emission of sewer gases. a. Fixture traps b. Cleanout c. Stack d. Chase 168. Is a fitting or device that, when propably vented, provides a liquid seal to prevent the emission of sewer gases. a. Fixture traps b. Cleanout c. Stack d. Chase 169. Is the drainage pipe that extends from the trap of a fixture to the junction of the next drainage pipe. a. Fixture drain b. horizontal branch c. Building drain branch d. Sanitary sewer 169. Is the drainage pipe that extends from the trap of a fixture to the junction of the next drainage pipe. a. Fixture drain b. horizontal branch c. Building drain branch d. Sanitary sewer 170. To boost the water pressure of hot water, use? a. Elevated water tank b. Hydroelectric water tank c. Gravity tank d. Circulating tank 170. To boost the water pressure of hot water, use? a. Elevated water tank b. Hydroelectric water tank c. Gravity tank d. Circulating tank 171. It is a type of ladder that stands independently of support. a. Extension ladder b. Stepladder c. Scaffolds d. Fixed ladder 171. It is a type of ladder that stands independently of support. a. Extension ladder b. Stepladder c. Scaffolds d. Fixed ladder 172. It is a plastic resin that can be heated and reformed repeatedly with little or no degradation in physical characteristics. a. PB b. Thermoplastic c. Thermosetting d. PE 172. It is a plastic resin that can be heated and reformed repeatedly with little or no degradation in physical characteristics. a. PB b. Thermoplastic c. Thermosetting d. PE 173. CPVC pipe and fittings are______ colored thermoplastic materials specially formulated to withstand higher temperatures than other plastic. a. White b. Black c. Blue d. Green 173. CPVC pipe and fittings are______ colored thermoplastic materials specially formulated to withstand higher temperatures than other plastic. a. White b. Black c. Blue d. Green 174. Is a civil drawing that shaped and sized of the building lot and the location on the building lot. a. Plot plan b. Exterior elevation drawing c. Schematic piping layout d. Isometric drawing 174. Is a civil drawing that shaped and sized of the building lot and the location on the building lot. a. Plot plan b. Exterior elevation drawing c. Schematic piping layout d. Isometric drawing 175. Is valve installed on water service to turn on or off the flow of potable water in the building. a. Stop box b. Curb cock c. Corporation cock d. Stop cock 175. Is valve installed on water service to turn on or off the flow of potable water in the building. a. Stop box b. Curb cock c. Corporation cock d. Stop cock 176. Is an eye and face protection device that covers the entire face with a plastic shield. a. Face shield b. Goggles c. Shield d. Mask 176. Is an eye and face protection device that covers the entire face with a plastic shield. a. Face shield b. Goggles c. Shield d. Mask 177. Is securing equipment or materials preparation for lifting by means of rope, chain or web sling. a. Rigging b. Locking c. Securing d. All of the above 177. Is securing equipment or materials preparation for lifting by means of rope, chain or web sling. a. Rigging b. Locking c. Securing d. All of the above 178. It is a plastic resin that cannot be melted after it is formed and cured in its final shape. a. Thermoplastic b. Thermosetting c. PE d. PB 178. It is a plastic resin that cannot be melted after it is formed and cured in its final shape. a. Thermoplastic b. Thermosetting c. PE d. PB 179. Is a plumbing design in which centrally located manifolds distribute water to each fixture with dedicated hot and cold water lines. a. Home run b. Distribution run c. Goal d. Base 179. Is a plumbing design in which centrally located manifolds distribute water to each fixture with dedicated hot and cold water lines. a. Home run b. Distribution run c. Goal d. Base 180. Is a steel pipe manufactured by drawing flat steel strips trough a die to form a cylindrical shape. a. Seamless pipe b. Brazed pipe c. Welded pipe d. All of the above 180. Is a steel pipe manufactured by drawing flat steel strips trough a die to form a cylindrical shape. a. Seamless pipe b. Brazed pipe c. Welded pipe d. All of the above 181. Is a nipple that is threaded on the ends and has short unthreaded pipe in the middle. a. Close nipple b. Shoulder nipple c. Double nipple d. Riser nipple 181. Is a nipple that is threaded on the ends and has short unthreaded pipe in the middle. a. Close nipple b. Shoulder nipple c. Double nipple d. Riser nipple 182. Is a gate valve in which one piece solid bronze wedge fits against the seat to restrict the flow. a. Full gate valve b. Solid wedge disk gate valve c. Split wedge disk gate valve d. Single disk gate valve 182. Is a gate valve in which one piece solid bronze wedge fits against the seat to restrict the flow. a. Full gate valve b. Solid wedge disk gate valve c. Split wedge disk gate valve d. Single disk gate valve 183. Is a drawing of piping system without regard to scale and exact location of the fixture shown in drawing. a. Isometric drawing b. Schematic piping layout c. Exterior elevation drawing d. Plot plan 183. Is a drawing of piping system without regard to scale and exact location of the fixture shown in drawing. a. Isometric drawing b. Schematic piping layout c. Exterior elevation drawing d. Plot plan 184. Is a pipe extending from the corporation cock to the water supply distribution system of the building. a. Curb cock b. Corporation cock c. Water service d. Stop box 184. Is a pipe extending from the corporation cock to the water supply distribution system of the building. a. Curb cock b. Corporation cock c. Water service d. Stop box 185. Is a ladder that is permanently attached to a structure, tank or vault. a. Extension ladder b. Stepladder c. Scaffolds d. Fixed ladder 185. Is a ladder that is permanently attached to a structure, tank or vault. a. Extension ladder b. Stepladder c. Scaffolds d. Fixed ladder 186. Is a temporary or movable platform and structures for plumbers to stand on when working above the floor level. a. Booms b. Ladder c. Ridge d. Fixed ladder 186. Is a temporary or movable platform and structures for plumbers to stand on when working above the floor level. a. Booms b. Ladder c. Ridge d. Fixed ladder 187. It has deeper and broader hook jaw housing which provided a smooth, flat surface that is may used be occasionally used as a hammer. a. End pipe wrench b. Pipe wrench c. Stillson wrench d. Rap wrench 187. It has deeper and broader hook jaw housing which provided a smooth, flat surface that is may used be occasionally used as a hammer. a. End pipe wrench b. Pipe wrench c. Stillson wrench d. Rap wrench 188. What do you call this valve installed at the suction line of the pump to prevent the loss of prime pump? a. Check valve b. Suction valve c. Underground valve d. Foot valve 188. What do you call this valve installed at the suction line of the pump to prevent the loss of prime pump? a. Check valve b. Suction valve c. Underground valve d. Foot valve 189. A male thread fitting with square head used for closing another female fitting is called. a. Nipple b. Coupling c. Plug d. bushing 189. A male thread fitting with square head used for closing another female fitting is called. a. Nipple b. Coupling c. Plug d. bushing 190. What causes the bad taste and odor of water? a. Lack of oxygen b. The presence of algae c. The lack of nitrogen d. The presence of minerals 190. What causes the bad taste and odor of water? a. Lack of oxygen b. The presence of algae c. The lack of nitrogen d. The presence of minerals 191. What type of wrench is used to assemble hubless joint? a. Pipe wrench b. Strap wrench c. Torque wrench d. Chain wrench 191. What type of wrench is used to assemble hubless joint? a. Pipe wrench b. Strap wrench c. Torque wrench d. Chain wrench 192. It has internal legs and tray that folds in for easy carrying and set up. Large vise base overhangs front legs for clear tool swing. a. Portable tristand chain vise b. Bench yoke vise c. Bench chain vise d. Stain chain vise 192. It has internal legs and tray that folds in for easy carrying and set up. Large vise base overhangs front legs for clear tool swing. a. Portable tristand chain vise b. Bench yoke vise c. Bench chain vise d. Stain chain vise 193. A wrench for screws with hexagonally shaped recess in its head. a. Offset pipe wrench b. Allen wrench c. Internal wrench d. Compound leverage wrench 193. A wrench for screws with hexagonally shaped recess in its head. a. Offset pipe wrench b. Allen wrench c. Internal wrench d. Compound leverage wrench 194. Another variation of pipe wrench featuring a jaw opening parallel to the handle and a narrower hook jaw which provided easy entry into tight space. a. Offset Pipe wrench b. Strap wrench c. adjustable wrench d. Chain wrench 194. Another variation of pipe wrench featuring a jaw opening parallel to the handle and a narrower hook jaw which provided easy entry into tight space. a. Offset Pipe wrench b. Strap wrench c. adjustable wrench d. Chain wrench 195. A tool fast and easy grip used on constricted spaces or close to a wall. It has a solid housing which keeps it from breaking or wrapping under normal use. a. Rap wrench b. Stillson wrench c. Compound leverage wrench d. End pipe wrench 195. A tool fast and easy grip used on constricted spaces or close to a wall. It has a solid housing which keeps it from breaking or wrapping under normal use. a. Rap wrench b. Stillson wrench c. Compound leverage wrench d. End pipe wrench 196. This is used to remove square and octagonally-shaped threaded faucets. It has a right angle bar with one end for square nuts and other octagonal. a. Valve seat tool b. closet wrench c. Basket strainer wrench d. Basin wrench 196. This is used to remove square and octagonally-shaped threaded faucets. It has a right angle bar with one end for square nuts and other octagonal. a. Valve seat tool b. closet wrench c. Basket strainer wrench d. Basin wrench 197. It is a pipe that conveys potable water for public and community use from the municipal water supply source. a. Water service b. Water main c. Distribution pipe d. Water supply 197. It is a pipe that conveys potable water for public and community use from the municipal water supply source. a. Water service b. Water main c. Distribution pipe d. Water supply 198. Is a device used to measure the volume of water that passes through the water service. a. Water service b. Water main c. Water meter d. Water supply 198. Is a device used to measure the volume of water that passes through the water service. a. Water service b. Water main c. Water meter d. Water supply 199. An eye protection device with flexible frame, they are secured on the face with a elastic headband. a. Face shield b. Goggles c. Shield d. Mask 199. An eye protection device with flexible frame, they are secured on the face with a elastic headband. a. Face shield b. Goggles c. Shield d. Mask 200. Is an adjustable height ladder with a fixed bed section and sliding, lockage fly section. a. Extension ladder b. Step ladder c. Scaffolds d. Fixed ladder 200. Is an adjustable height ladder with a fixed bed section and sliding, lockage fly section. a. Extension ladder b. Step ladder c. Scaffolds d. Fixed ladder 201. As a registered master plumber, you have to use a ladder to carry the pipes to the second floor of the building, what will be the horizontal distance from the foot of the ladder to the wall that you considered proper? a. ¼ of the ladder’s length b. 1/3 of the ladder’s length c. ½ of the ladder’s length d. 3/8 of the ladder’s length 201. As a registered master plumber, you have to use a ladder to carry the pipes to the second floor of the building, what will be the horizontal distance from the foot of the ladder to the wall that you considered proper? a. ¼ of the ladder’s length b. 1/3 of the ladder’s length c. ½ of the ladder’s length d. 3/8 of the ladder’s length 202. What is the standard size of water service from the water main to the dwelling unit? a. ½” b. ¾” c. 3/8” d. 5/8” 202. What is the standard size of water service from the water main to the dwelling unit? a. ½” b. ¾” c. 3/8” d. 5/8” 203. What is the corresponding name of the following abbreviation pertaining to local trade and government regulating body? a. DTI b. DOE c. NAMPAP d. PRC 203. What is the corresponding name of the following abbreviation pertaining to local trade and government regulating body? a. DTI b. DOE c. NAMPAP d. PRC 204. What is the minimum size of a fire hose outlet of an interior wet standpipe? a. 32 mm b. 38 mm c. 41 mm d. 50 mm 204. What is the minimum size of a fire hose outlet of an interior wet standpipe? a. 32 mm b. 38 mm c. 41 mm d. 50 mm 205. Caulk joint shall be firmly packed with oakum or hemp and powered received with pure load, what is the depth of lead over oakum? a. 25 mm b. 32 mm c. 20 mm d. 12.7 mm 205. Caulk joint shall be firmly packed with oakum or hemp and powered received with pure load, what is the depth of lead over oakum? a. 25 mm b. 32 mm c. 20 mm d. 12.7 mm 206. What is that branch vent that serves two or more trap and form in front of the last fixtures connection of the horizontal branch to the vent stack? a. Local vent b. Individual vent c. Circuit vent d. Utility vent 206. What is that branch vent that serves two or more trap and form in front of the last fixtures connection of the horizontal branch to the vent stack? a. Local vent b. Individual vent c. Circuit vent d. Utility vent 207. What is the minimum depth of the building sewer when installed? a. 1m b. 300 mm c. 650 mm d. 1.2 m 207. What is the minimum depth of the building sewer when installed? a. 1m b. 300 mm c. 650 mm d. 1.2 m 208. Which of the following is NOT a type of lavatory? a. Splash-back b. Ledge-back c. Reverse trap d. Countertop 208. Which of the following is NOT a type of lavatory? a. Splash-back b. Ledge-back c. Reverse trap d. Countertop 209. What do you call that point which is unobstructed open edge of the fixture? a. Flooded b. Flushing surface c. Rim d. Drain board 209. What do you call that point which is unobstructed open edge of the fixture? a. Flooded b. Flushing surface c. Rim d. Drain board 210. What is the greatest stress which a material can stand without permanent deformation after release of the stress? a. Fatigue b. Tensile stress c. Working stress d. Ultimate stress 210. What is the greatest stress which a material can stand without permanent deformation after release of the stress? a. Fatigue b. Tensile stress c. Working stress d. Ultimate stress 211. What is the device suitable for plumbing sewage from the deep basement floor into sewer line? a. Pressure relief valve b. Pneumatic ejector c. Vacuum breaker d. None of the above 211. What is the device suitable for plumbing sewage from the deep basement floor into sewer line? a. Pressure relief valve b. Pneumatic ejector c. Vacuum breaker d. None of the above 212. In a water distribution system, what connects the water main to the water risers? a. Water service b. Riser runout c. Water pump d. Water tank 212. In a water distribution system, what connects the water main to the water risers? a. Water service b. Riser runout c. Water pump d. Water tank 213. Which of these materials best for vent pipes in an acid waste system? a. Plastic b. Galvanized steel c. DWV copper d. Malleable iron 213. Which of these materials best for vent pipes in an acid waste system? a. Plastic b. Galvanized steel c. DWV copper d. Malleable iron 214. What type of end connection are used for valves smaller than 2 inches diameter? a. Flanged b. Compression gasket c. Union d. Threaded 214. What type of end connection are used for valves smaller than 2 inches diameter? a. Flanged b. Compression gasket c. Union d. Threaded 215. Ball valves are an adaptation of ? a. Butterfly valves b. Plug valves c. Globe valves d. Gate valves 215. Ball valves are an adaptation of ? a. Butterfly valves b. Plug valves c. Globe valves d. Gate valves 216. The codes that prescribes criteria on the quality of drinking water from meteoric, surface or underground sources is? a. National Standards for Drinking Water b. Water Code of the Philippines c. National Building Code d. DENR 216. The codes that prescribes criteria on the quality of drinking water from meteoric, surface or underground sources is? a. National Standards for Drinking Water b. Water Code of the Philippines c. National Building Code d. DENR 217. Which type of lavatories is designed for group use? a. Splash-back b. Shelf-back c. Countertop d. Wall hung 217. Which type of lavatories is designed for group use? a. Splash-back b. Shelf-back c. Countertop d. Wall hung 218. In PD 1096 prescribes that Dry Standpipe is required for every building of how many floors? a. 4 or more b. 2 or more c. 5 or more d. 3 or more 218. In PD 1096 prescribes that Dry Standpipe is required for every building of how many floors? a. 4 or more b. 2 or more c. 5 or more d. 3 or more 219. All dry standpipe shall extend from the ground floor and over the roof and shall be equipped with 64 mm outlet in every floor level with a minimum height from the floor of? a. 1m b. 1.5 m c. 900 mm d. 1.2 m 219. All dry standpipe shall extend from the ground floor and over the roof and shall be equipped with 64 mm outlet in every floor level with a minimum height from the floor of? a. 1m b. 1.5 m c. 900 mm d. 1.2 m 220. The minimum size of a fire hose outlet of an interior wet standpipe is? a. 20 mm dia. b. 41 mm dia. c. 25 mm dia. d. 38 mm dia. 220. The minimum size of a fire hose outlet of an interior wet standpipe is? a. 20 mm dia. b. 41 mm dia. c. 25 mm dia. d. 38 mm dia. 221. The basic elements of a cold water supply include the: a. Riser runout b. Subsoil drain lines c. Downspout d. Fire pump 221. The basic elements of a cold water supply include the: a. Riser runout b. Subsoil drain lines c. Downspout d. Fire pump 222. The water service is a pipe that extends from the? a. Water riser runout to the water tank b. Water main to the water tank c. Water main to the water meter d. Water main to the building 222. The water service is a pipe that extends from the? a. Water riser runout to the water tank b. Water main to the water tank c. Water main to the water meter d. Water main to the building 223. In PD 856 Sanitation Code of the Philippines, the effective depth of a septic tank is measured from the bottom of septic tank to the? a. Bottom of the manhole b. Liquid line c. Invert of inlet pipe d. Invert of discharge pipe 223. In PD 856 Sanitation Code of the Philippines, the effective depth of a septic tank is measured from the bottom of septic tank to the? a. Bottom of the manhole b. Liquid line c. Invert of inlet pipe d. Invert of discharge pipe 224. The spoon like tools use for pouring molten pig lead into hub as making caulk joint in cast iron pipe is called? a. Spatula b. Scoop c. Dippers d. None of the above 224. The spoon like tools use for pouring molten pig lead into hub as making caulk joint in cast iron pipe is called? a. Spatula b. Scoop c. Dippers d. None of the above 225. It is the pipe extension of a solid waste or waste stack above the highest horizontal drain connected to the stack. a. VSTR b. SVTR c. Local vent d. Loop vent 225. It is the pipe extension of a solid waste or waste stack above the highest horizontal drain connected to the stack. a. VSTR b. SVTR c. Local vent d. Loop vent 226. It is a loss of trap seal due to unequal atmospheric pressure condition and due to rapid flows of water thru the trap: a. Wind effect b. Capillary effect c. Siphonage d. Back pressure 226. It is a loss of trap seal due to unequal atmospheric pressure condition and due to rapid flows of water thru the trap: a. Wind effect b. Capillary effect c. Siphonage d. Back pressure 227. In preparing of a mortar or form a sticky mass to be squeezed into the bell of clay for a cement joint, the mixture will be: a. One percent, one percent fine sand and water b. Pure cement and water c. Two part cement, one part sand and water d. Two part sand, one part cement and water 227. In preparing of a mortar or form a sticky mass to be squeezed into the bell of clay for a cement joint, the mixture will be: a. One percent, one percent fine sand and water b. Pure cement and water c. Two part cement, one part sand and water d. Two part sand, one part cement and water 228. An inside roof leader is extended vertically through the floor of the building to a point below the roof. What is the common practice to reduce the danger of breakage which may result from expansion and contraction of roof? a. Extend horizontally below the roof with an elbow to form swing joint. b. Install sleeves below the roof. c. Install packing materials to cushion possible impact. d. Provide the end of roof leader with flexible material. 228. An inside roof leader is extended vertically through the floor of the building to a point below the roof. What is the common practice to reduce the danger of breakage which may result from expansion and contraction of roof? a. Extend horizontally below the roof with an elbow to form swing joint. b. Install sleeves below the roof. c. Install packing materials to cushion possible impact. d. Provide the end of roof leader with flexible material. 229. After threading of a G.I pipe thru a stack and dies the next step for plumber should do is to ream the inside of pipe for these purpose? a. Remove deformation which will cause reduction of pipe diameter b. Remove burr to facilitate application of lubricant c. Smoothening the surface end of the pipe d. Making the pipe and straight 229. After threading of a G.I pipe thru a stack and dies the next step for plumber should do is to ream the inside of pipe for these purpose? a. Remove deformation which will cause reduction of pipe diameter b. Remove burr to facilitate application of lubricant c. Smoothening the surface end of the pipe d. Making the pipe and straight 230. In inserting a wye into laid house sewer, the practical produce is these? a. Cut the sewer to the length and insert the wye and cement joint end b. Remove three length of pipe and insert wye fitting into the line c. Cut the sewer to the length, insert wye and joint ends with sleeves d. None of these 230. In inserting a wye into laid house sewer, the practical produce is these? a. Cut the sewer to the length and insert the wye and cement joint end b. Remove three length of pipe and insert wye fitting into the line c. Cut the sewer to the length, insert wye and joint ends with sleeves d. None of these 231. Water well yield is a factor considered to determine the size of? a. Water pipe b. Fixtures c. Electrical wiring d. Pump 231. Water well yield is a factor considered to determine the size of? a. Water pipe b. Fixtures c. Electrical wiring d. Pump 232. Theater or movie house’s water requirement is determined or estimated at 5 gallons of water per day for? a. Total number of auditorium seat b. Total numbers of movie goer per day c. Floor area space of auditorium d. Box office record 232. Theater or movie house’s water requirement is determined or estimated at 5 gallons of water per day for? a. Total number of auditorium seat b. Total numbers of movie goer per day c. Floor area space of auditorium d. Box office record 233. Where is water meter located? a. Right after the main distribution line connection b. Right side of the water pump or in it’s flow direction c. Within the row, right before the property line d. Beside the water pump 233. Where is water meter located? a. Right after the main distribution line connection b. Right side of the water pump or in it’s flow direction c. Within the row, right before the property line d. Beside the water pump 234. The minimum distance of a well from a septic tank? a. 15.2 m b. 10 m c. 25 m d. 20 m 234. The minimum distance of a well from a septic tank? a. 15.2 m b. 10 m c. 25 m d. 20 m 235. There is a septic tank installed on top of a rock by seashore. The tank is exposed on how tide and covered in sea water during high tide. Which of the following would be an appropriate water proofing for it? a. Waterproof all surfaces b. Waterproof all interior surfaces except the floor c. Waterproof all interior surfaces except the ceiling d. Waterproof is not necessary, it will just add cost 235. There is a septic tank installed on top of a rock by seashore. The tank is exposed on how tide and covered in sea water during high tide. Which of the following would be an appropriate water proofing for it? a. Waterproof all surfaces b. Waterproof all interior surfaces except the floor c. Waterproof all interior surfaces except the ceiling d. Waterproof is not necessary, it will just add cost 236. A type of coupling or joining device having internal screw threads or nuts with opposite screws at the end. By turning the internal screws, it is possible to connect two metal rods and regulate the length and tension of this rods? a. Turnbuckle b. Vice grip c. Union patente d. Turnstile 236. A type of coupling or joining device having internal screw threads or nuts with opposite screws at the end. By turning the internal screws, it is possible to connect two metal rods and regulate the length and tension of this rods? a. Turnbuckle b. Vice grip c. Union patente d. Turnstile 237. A pump used to eject sewage or liquid waste? a. Centrifugal pump b. Sump c. Rotary pump d. Central sewage booster 237. A pump used to eject sewage or liquid waste? a. Centrifugal pump b. Sump c. Rotary pump d. Central sewage booster 238. What property is used to distinguish between potable and sanitary uPVC pipes? a. Color b. Thickness c. Nominal diameter d. Outside diameter 238. What property is used to distinguish between potable and sanitary uPVC pipes? a. Color b. Thickness c. Nominal diameter d. Outside diameter 239. A common ingredients for water disinfectant, except for? a. Trichlor b. Bichlor c. Dichlor d. Trichloro-s-triazinetrione 239. A common ingredients for water disinfectant, except for? a. Trichlor b. Bichlor c. Dichlor d. Trichloro-s-triazinetrione 240. What is the color of communication line piping? a. Gray b. White c. Orange d. Silver 240. What is the color of communication line piping? a. Gray b. White c. Orange d. Silver 241. There are several reasons why soil stacks are not allowed in columns. Which is not a reason? a. The size of the columns will be larger b. Pipes will interfere with reinforcing bars c. Cracks and leaks cannot be detected d. The gas emitted will deteriorate concrete 241. There are several reasons why soil stacks are not allowed in columns. Which is not a reason? a. The size of the columns will be larger b. Pipes will interfere with reinforcing bars c. Cracks and leaks cannot be detected d. The gas emitted will deteriorate concrete 242. How do we size sewage pits? a. Volume of solid waste only b. Volume of liquid waste c. Volume of solid, liquid, and storm d. None of these 242. How do we size sewage pits? a. Volume of solid waste only b. Volume of liquid waste c. Volume of solid, liquid, and storm d. None of these (volume of liquid and solid waste) 243. During the site inspection, the architect notices that a soil pipe will cross a beam. What the best advice he can do? a. Simply ask to relocate, its just a pipe anyway. b. Resize the diameter of the soil pipe, enough that can go across the beam without affecting it. c. It doesn’t matter anyway, let the master plumber handle it. d. Drill a hole of the beam, enough diameter that a pipe could go in and pass through. Just make sure that the hole is precisely in the middle to avoid the bars to be hit in. 243. During the site inspection, the architect notices that a soil pipe will cross a beam. What the best advice he can do? a. Simply ask to relocate, its just a pipe anyway. b. Resize the diameter of the soil pipe, enough that can go across the beam without affecting it. c. It doesn’t matter anyway, let the master plumber handle it. d. Drill a hole of the beam, enough diameter that a pipe could go in and pass through. Just make sure that the hole is precisely in the middle to avoid the bars to be hit in. 244. What is the most efficient tools for cutting cast iron pipe? a. Handsaw b. Hacksaw c. Chisel and hammer d. Snap cutter 244. What is the most efficient tools for cutting cast iron pipe? a. Handsaw (most least efficient) b. Hacksaw (least efficient) c. Chisel and hammer (best method) d. Snap cutter (most efficient tools) 245. Kind of pipe not suited to be exposed to ultraviolet rays? a. PVC b. PB c. Iron d. G.I 245. Kind of pipe not suited to be exposed to ultraviolet rays? a. PVC b. PB c. Iron d. G.I 246. How do you connect 2 hubless cast iron pipes? a. Shielded Coupling b. Elbow c. Structural compression gasket d. Polymer compression gasket 246. How do you connect 2 hubless cast iron pipes? a. Shielded Coupling b. Elbow c. Structural compression gasket d. Polymer compression gasket 247. Minimum clearance from the floor of pipes for AC units when crossing a hallway or corridor? a. 2.3 m b. 2.1 m c. 2.2 m d. 2.4 m 247. Minimum clearance from the floor of pipes for AC units when crossing a hallway or corridor? a. 2.3 m b. 2.1 m c. 2.2 m d. 2.4 m 248. Where will you least place a downspout? a. Between window openings b. At corner of walls c. Inside columns d. Wall hung 248. Where will you least place a downspout? a. Between window openings b. At corner of walls c. Inside columns d. Wall hung 249. In plumbing systems, if pipes are electrical wires. What are the equivalent of switches? a. Valve b. Tee c. Floor drain d. Cleanout 249. In plumbing systems, if pipes are electrical wires. What are the equivalent of switches? a. Valve b. Tee c. Floor drain d. Cleanout 250. Where would you locate water distribution pipe farthest from? a. Large trees b. Carport c. Drainage d. Water tank 250. Where would you locate water distribution pipe farthest from? a. Large trees b. Carport c. Drainage d. Water tank 251. A term used to describe pumps that are interconnected with each other? a. Series b. Gang c. Battery d. None 251. A term used to describe pumps that are interconnected with each other? a. Series b. Gang c. Battery d. None 252. What do you call a control valve used to shutoff at the water supply to a building in case of emergency. It is installed at a water service pipe and operated by means of long key inserted through a curb box? a. Curb cock b. Corp stop c. Cock stop d. Emergency cock 252. What do you call a control valve used to shutoff at the water supply to a building in case of emergency. It is installed at a water service pipe and operated by means of long key inserted through a curb box? a. Curb cock b. Corp stop c. Cock stop d. Emergency cock 253. Which wall is best suited if soil pipe will run through it? a. Drywall b. 6” CHB c. Shear wall d. Retaining wall 253. Which wall is best suited if soil pipe will run through it? a. Drywall b. 6” CHB c. Shear wall d. Retaining wall 254. What is the color coding of pipes for potable water? a. Cyan b. Green c. Blue d. Light blue 254. What is the color coding of pipes for potable water? a. Cyan b. Green c. Blue d. Light blue 255. What is the standard water consumption (gallon/person/day) used in a 2 storey residence? a. 30-40 gpd b. 40-60 gpd c. 50-80 gpd d. 90-120 gpd 255. What is the standard water consumption (gallon/person/day) used in a 2 storey residence? a. 30-40 gpd b. 40-60 gpd c. 50-80 gpd d. 90-120 gpd 256. The minimum size of trap and waste branch for a bidet? a. 3” b. 1 1/2” c. 2” d. 1” 256. The minimum size of trap and waste branch for a bidet? a. 3” b. 1 1/2” c. 2” d. 1” 257. Alternative to the conventional septic tank? a. Aerobic treatment system b. Cistern c. Sewage Treatment Plant d. Sewage landfill 257. Alternative to the conventional septic tank? a. Aerobic treatment system b. Cistern c. Sewage Treatment Plant d. Sewage landfill 258. When water goes up through a vertical pipe, it stops at a certain height. Why? a. Gravity and friction overcomes the pressure and the water slowly stops. b. The pressure inside the pipe equates to the pressure outside the pipe causing the water to stop at that point where it appears. c. Its own gravity weight counters its speed of going up. d. All things stops. 258. When water goes up through a vertical pipe, it stops at a certain height. Why? a. Gravity and friction overcomes the pressure and the water slowly stops. b. The pressure inside the pipe equates to the pressure outside the pipe causing the water to stop at that point where it appears. c. Its own gravity weight counters its speed of going up. d. All things stops. 259. The minimum size of a swimming pool drain. a. 3” dia. b. 4” dia. c. 2” dia. d. 6” dia. 259. The minimum size of a swimming pool drain. a. 3” dia. b. 4” dia. c. 2” dia. d. 6” dia. 260. The minimum sized of a trap and waste branch for a size of foot bath? a. 1 ¼” diameter b. 2” diameter c. 1 ½” diameter d. 1” diameter 260. The minimum sized of a trap and waste branch for a size of foot bath? a. 1 ¼” diameter b. 2” diameter c. 1 ½” diameter d. 1” diameter 261. The minimum size of a trap and waste branch for a shower stall. a. 2” diameter b. 3” diameter c. 1 1/2 “ diameter d. 1 diameter 261. The minimum size of a trap and waste branch for a shower stall. a. 2” diameter b. 3” diameter c. 1 1/2 “ diameter d. 1 diameter 262. Where are storm sewer usually placed? a. Under the sidewalk on narrow and under the road on wide road b. Near the curb c. At the center of the road d. None 262. Where are storm sewer usually placed? a. Under the sidewalk on narrow and under the road on wide road b. Near the curb c. At the center of the road d. None 263. Which is NOT a rule of thumb when designing a drainage? a. As much as possible, pipes must run in a straight line b. Underground drainage line should be on top of compacted soil c. It should be underneath the driveway d. None 263. Which is NOT a rule of thumb when designing a drainage? a. As much as possible, pipes must run in a straight line b. Underground drainage line should be on top of compacted soil c. It should be underneath the driveway d. None 264. Best location to put the soil pipe. a. Drywall b. 6” CHB wall c. Pipe chase d. Box up with the column 264. Best location to put the soil pipe. a. Drywall b. 6” CHB wall c. Pipe chase d. Box up with the column 265. The minimum number of water closet unit required for the female population of an elementary school. a. 1 per 75 b. 1 per 30 c. 1 per 50 d. 1 per 100 265. The minimum number of water closet unit required for the female population of an elementary school. a. 1 per 75 b. 1 per 30 c. 1 per 50 d. 1 per 100 266. Copper pipes are classified as what main pipe? a. Galvanized iron b. Ceramic c. Brass d. PVC 266. Copper pipes are classified as what main pipe? a. Galvanized iron b. Ceramic c. Brass d. PVC 267. Should not be used for a pipe chase? a. CHB b. Drywall c. Shear wall d. Double wall 267. Should not be used for a pipe chase? a. CHB b. Drywall c. Shear wall d. Double wall 268. What is the color pipes for steam? a. White b. Light blue c. Gray d. Blue 268. What is the color pipes for steam? a. White b. Light blue c. Gray d. Blue 269. Which plumbing fixtures does not have a water saving feature? a. Lavatory with pop-up b. 1.5 gallon flush water closet c. Flow limiting feature d. Waterless urinal 269. Which plumbing fixtures does not have a water saving feature? a. Lavatory with pop-up b. 1.5 gallon flush water closet c. Flow limiting feature d. Waterless urinal 270. What should not be permitted to cross a beam? a. Soil pipe b. Electrical wiring c. Water pipe d. AC ducts 270. What should not be permitted to cross a beam? a. Soil pipe b. Electrical wiring c. Water pipe d. AC ducts 271. Can you embed a 4” diameter pipe in a 150 CHB wall? a. Yes b. No 271. Can you embed a 4” diameter pipe in a 150 CHB wall? a. Yes b. No 272. In high rise building, why is there a need to resize water supply pipes? a. Because different fixtures have different supply attachments. b. To use up the difference in pressure from the service to the supply fixtures. c. Pipes are like trees, main branch are bigger and becomes smaller at ends for carrying wind loads and storms. d. Pipes having bigger size have bigger pressure and reduce the size for distribution to fixture for lower pressure. 272. In high rise building, why is there a need to resize water supply pipes? a. Because different fixtures have different supply attachments. b. To use up the difference in pressure from the service to the supply fixtures. c. Pipes are like trees, main branch are bigger and becomes smaller at ends for carrying wind loads and storms. d. Pipes having bigger size have bigger pressure and reduce the size for distribution to fixture for lower pressure. 273. A drain connecting one or more fixtures to a solid or waste stack? a. Combined drain b. Floor drain c. Circuit drain d. Branch drain 273. A drain connecting one or more fixtures to a solid or waste stack? a. Combined drain b. Floor drain c. Circuit drain d. Branch drain 274. Best for sanitary pipes? a. uPVC b. PeX c. PP d. G.I 274. Best for sanitary pipes? a. uPVC b. PeX c. PP d. G.I 275. Level 3 types of water service refers to? a. Artesian well b. Individual shallow well hand up installation c. Public faucet d. Individual house connection 275. Level 3 types of water service refers to? a. Artesian well b. Individual shallow well hand up installation c. Public faucet d. Individual house connection 276. An individual vent for a plumbing fixture located at the downstream of a trap? a. Vent pipe b. Back vent c. Branch vent d. VSTR 276. An individual vent for a plumbing fixture located at the downstream of a trap? a. Vent pipe b. Back vent c. Branch vent d. VSTR 277. Best size of pipe connected to 5 sinks. a. 3” b. 2 ½” c. 2” d. 4” 277. Best size of pipe connected to 5 sinks. a. 3” b. 2 ½” c. 2” d. 4” 278. Black steel pipe with galvanized malleable fittings is deal for? a. Oxygen pipe b. Electrical conduit c. Gas pipe d. Water pipe 278. Black steel pipe with galvanized malleable fittings is deal for? a. Oxygen pipe b. Electrical conduit c. Gas pipe d. Water pipe 279. In storm drainage system, it is used to prevent aggregates, debris and other unwanted objects from entering the drainage system? a. Culvert b. Scupper c. Street gutter d. Catch basin 279. In storm drainage system, it is used to prevent aggregates, debris and other unwanted objects from entering the drainage system? a. Culvert b. Scupper c. Street gutter d. Catch basin 280. What is the maximum depth of digestive chamber in a septic tank? a. 1.2 m b. 1.4 m c. 1.5 m d. 1.8 m 280. What is the maximum depth of digestive chamber in a septic tank? a. 1.2 m b. 1.4 m c. 1.5 m d. 1.8 m 281. What type of materials is used for the base of a septic tank? a. Earth base b. Mass concrete c. Lean concrete d. Reinforced concrete 281. What type of materials is used for the base of a septic tank? a. Earth base b. Mass concrete c. Lean concrete d. Reinforced concrete 282. What pipe should not be buried underground? a. B.I pipe b. PE pipe c. G.I pipe d. None 282. What pipe should not be buried underground? a. B.I pipe b. PE pipe c. G.I pipe d. None 283. What is the best fixture for a public comfort room? a. Gate valve b. Flushometer c. Faucet d. None 283. What is the best fixture for a public comfort room? a. Gate valve b. Flushometer c. Faucet d. None 284. The minimum number of a urinal fixture required for the male population of both elementary and secondary school? a. 1 per 40 b. 1 per 50 c. 1 per 60 d. 1 per 35 284. The minimum number of a urinal fixture required for the male population of both elementary and secondary school? a. 1 per 40 b. 1 per 50 c. 1 per 60 d. 1 per 35 285. In a location where there is no provision for drainage line. What is the next best thing? a. Store waste in the tank and dispose in sanitary fill b. Use drain tiles connected to open field c. Connect to the nearest creek d. Any of the above 285. In a location where there is no provision for drainage line. What is the next best thing? a. Store waste in the tank and dispose in sanitary fill b. Use drain tiles connected to open field c. Connect to the nearest creek d. Any of the above 286. What is the principle of governing the size of pipes in designing plumbing systems? a. The longer the pipes length to the fixture, the lesser the pressure; the shorter the pipes length, the greater the pressure. b. The bigger the pipes diameter, the lesser the pressure; the smaller the pipes diameter, the greater the pressure c. The smaller the pipes diameter the lesser the pressure; the bigger the pipe diameter, the greater the pressure d. Slopes is the primary consideration and sizes will be considered secondary 286. What is the principle of governing the size of pipes in designing plumbing systems? a. The longer the pipes length to the fixture, the lesser the pressure; the shorter the pipes length, the greater the pressure. b. The bigger the pipes diameter, the lesser the pressure; the smaller the pipes diameter, the greater the pressure c. The smaller the pipes diameter the lesser the pressure; the bigger the pipe diameter, the greater the pressure d. Slopes is the primary consideration and sizes will be considered secondary 287. When there is a low pressure from the water main, what will you use to supply higher levels? a. Pneumatic pump b. Sump pump c. Jet pump d. Booster pump 287. When there is a low pressure from the water main, what will you use to supply higher levels? a. Pneumatic pump b. Sump pump c. Jet pump d. Booster pump 288. The prescribe color coding of piping under refrigerating division of all pipes and fittings? a. White b. Gray c. Red d. Black 288. The prescribe color coding of piping under refrigerating division of all pipes and fittings? a. White b. Gray c. Red d. Black 289. A system of vertical pipes in a building to which fire hoses can be attached on each floor, including a system by which water is made available to the outlets as needed. a. Standpipe b. Sprinkler c. Fire hydrant d. Deluge 289. A system of vertical pipes in a building to which fire hoses can be attached on each floor, including a system by which water is made available to the outlets as needed. a. Standpipe b. Sprinkler c. Fire hydrant d. Deluge 290. The minimum sized of a trap and waste branch for a pedestal urinal? a. 2” diameter b. 2 ½” diameter c. 3” diameter d. 4” diameter 290. The minimum sized of a trap and waste branch for a pedestal urinal? a. 2” diameter b. 2 ½” diameter c. 3” diameter d. 4” diameter 291. Heavy water is: a. B2 O b. H2O c. W2O d. D2O 291. Heavy water is: a. B2 O b. H2O c. W2O d. D2O 292. Swimming pool water needs: a. Pre-chlorination b. Super-chlorination c. Dual-chlorination d. De-chlorination 292. Swimming pool water needs: a. Pre-chlorination b. Super-chlorination c. Dual-chlorination d. De-chlorination 293. Aeration of water is done for all of the following purposes except for: a. Removal of CO2 b. Removal of bad taste c. Increasing the amount of oxygen in water d. Removal of temporary hardness 293. Aeration of water is done for all of the following purposes except for: a. Removal of CO2 b. Removal of bad taste c. Increasing the amount of oxygen in water d. Removal of temporary hardness 294. Mycotoxins are poisonous chemicals produced by? a. Bacteria b. Molds c. Virus d. Algae 294. Mycotoxins are poisonous chemicals produced by? a. Bacteria b. Molds c. Virus d. Algae 295. Per capita consumption of water is generally taken as: a. 50-100 li b. 150-300 li c. 400-500 li d. 750-1000 li 295. Per capita consumption of water is generally taken as: a. 50-100 li b. 150-300 li c. 400-500 li d. 750-1000 li 296. The ratio activity of water because of strontium can be removed by: a. Aeration b. Alum coagulation c. Phosphate coagulation d. Lime 296. The ratio activity of water because of strontium can be removed by: a. Aeration b. Alum coagulation c. Phosphate coagulation d. Lime 297. Chemical used for checking the growth of algae in reservoirs is: a. Copper sulphate b. Alum c. Bleaching powder d. Brine 297. Chemical used for checking the growth of algae in reservoirs is: a. Copper sulphate b. Alum c. Bleaching powder d. Brine 298. Part per million is identical to: a. Grains per gallon b. Pounds per cubic foot c. Milligrams per kg d. Tones per acre foot 298. Part per million is identical to: a. Grains per gallon b. Pounds per cubic foot c. Milligrams per kg d. Tones per acre foot 299. All of the following statements are characteristics of bases except: a. They conduct electricity in aqueous solutions b. They turn red litmus paper blue c. They have a pH between 0 and 7 d. They neutralize acids forming salts and water 299. All of the following statements are characteristics of bases except: a. They conduct electricity in aqueous solutions b. They turn red litmus paper blue c. They have a pH between 0 and 7 d. They neutralize acids forming salts and water 300. A fibrous silicate mineral material that is inert, strong and incombustible. a. Fiberglass b. Plastic c. Rubber d. Asbestos 300. A fibrous silicate mineral material that is inert, strong and incombustible. a. Fiberglass b. Plastic c. Rubber d. Asbestos