Master Plumber Exam - National Plumbing Code of the Philippines Questions With Complete Solutions

Sewage Ejector correct answer: Type of pump that discharges waste in the sump pit and transfers the waste to the house drain. (Max Fajardo) 503 mm correct answer: Minimum dimension of a septic tank manhole. Industrial drain correct answer: drain that discharges objectionable waste such as acids and other chemicals from industrial equipment . 75 mm correct answer: Minimum diameter of pipe of any water closet. 3 correct answer: Maximum number of water closets able to discharge into a shared 75mm diameter horizontal soil branch Combination Sewer correct answer: Type of sewer that discharges both storm water and sewage from households, rendered obsolete due to the health hazards it poses Septic Tank correct answer: Airtight receptacle used to expedite the decomposition of elements contained in raw sewage, usually located 1.5 meters from the property line and 15.2 meters from the water main or any potable water source. It is comprised of two chambers that contain anaerobic bacteria that break down wastes. Sedimentation correct answer: Term defined as the settling down or separation of solid matter suspended in a liquid. 1% correct answer: Minimum slope or grade (in %) permitted with 100mm (4'') pipes. Scum correct answer: Lighter organic solid particles found in sewage, cesspools and septic tanks, found floating on the liquid. Sludge correct answer: Term defined as the organic particles that have settled down in septic tanks, cesspools or sewage. 900 mm correct answer: Minimum WIDTH of a septic tank for residential dwellings. (mm) 1500 mm correct answer: Minimum LENGTH of a septic tank for residential dwellings. (mm) 1200 mm correct answer: Minimum DEPTH of a septic tank for residential dwellings. (mm) Hair correct answer: Leading cause of pipe clogs in waste and soil pipes. Drainage, Waste and Vent correct answer: Definition of DWV Acrylonitrile butadiene styrene correct answer: Definition of ABS Oval correct answer: Cross sectional shape of the interior of Polybutene pipes (PB). 38 mm correct answer: Minimum size of cleanouts. (mm) Corporation Stop correct answer: Type of valve found in the service main, used as a control of the water service and shut off