BUILDING UTILITIES ARCC EXAM QUESTIONS AND ANSWERS

BUILDING UTILITIES ARCC EXAM QUESTIONS AND ANSWERS Plumbing - answerinstalling pipes, fixtures and other apparatuses for water supply, removing wastes, etc. Water Supply System - answera system that provides and distributes water to a structure Pressure - answermain principle used in a Water Supply System Water Treatment Facilities - answera place where water is made potable and palatable -- usually located upland to create pressure when supplying cities and communities 40-50psi. - answerstandard pressure internationally 20-30psi. - answerstandard pressure locally 10-15psi. - answerstandard pressure locally during dry season 175psi. - answerfire pump standard water pressure Downfeed Distribution System - answer· water supply system that uses pump & tank located in the rooftop to distribute & control water supply for the whole building · common in mid and high-rise buildings Hydropneumatic System - answer· water distribution system that relies on air pressure as a means of bringing water vertically upward through risers and horizontally through branches · a pressure tank is provided and a water pump is installed directly on top of the pressure tank * Riser piping - answerWhich has a bigger piping, riser or downfeed distribution? Bestank - answera commonly used overhead tank for small scale projects Cistern - answeralso called as 'underground tank', it allocates various uses of water such as water supply, fire protection, etc. Gas Water Heater - answeruses natural gas to heat water Electric Water Heater - answeruses electricity to heat water Solar Water Heater - answeruses solar panels to heat water -- cost-effective in local context In-line Water Heater - answercold water runs through a tankless water heater Single-point Water Heater - answertankless water heater which is connected to a single fixture Multi-point Water Heater - answertankless water heater which is connected to multiple fixtures Centrifugal Pump - answer· pump for moving large volumes of water at low-medium pressures · good for steady flows, low-to-high discharge pressures and other partly solid liquids Positive Displacement Pump - answer· pump that displaces a set volume of water to any direction with each turn of pump · commonly used as a construction pump (e.g. removing excess water on-site/water table) Rotary Pump - answer· pump used for moving viscous or high-pressure liquids · good for steady flows, medium discharge pressures but not for abrasive liquids Reciprocating Pump - answer· pumps good for high discharge pressures in small capacity · also good for clean and clear liquids and pulsing liquids Submersible Pump - answer· has pump stages driven by closely-coupled motor designed for submerged operations · used in dewatering tunnels, foundation pits, trenches and other areas filled with water Helical Rotor Pump - answer· has a spiral rotor that rotates in a sleeve · traps water between rotor and sleeve that forces it out to the sleeve outlet Jet/Ejector Pump - answer· a combination of centrifugal and ejector pump · uses the water table (deep well) to transfer water · economical for low volume facilities such as islands and remote areas Sump Pump - answerremoves liquid accumulation from a sump pit Booster Pump - answerused where pressure is low and needs to be increased -- often used in large scale projects Jockey Pump - answer· small motor driven pump for fire main pumps · compensates minor leaks and maintains stand-by pressure Turbine/Vertical Turbine Pump - answer· consists of centrifugal pump stages driven by a vertical shaft which connects pump assembly to a motor · used in high-rise buildings as back-up fire pump Piping - answerplumbing system that consists of pipe, tubing and fittings Roughing-In - answerinstallation of valves, pipes and provision of hangers and supports Service pipe - answerpipe that carries water provided by the water company Supply pipe - answerpipe that connects water main to all fixtures Distribution pipe - answerpipe that is connected from a water tank to all fixtures 3/4 inch ⌀ (19mm) - answerSupply pipe size 1/2 inch ⌀ (13mm) - answerKitchen sink, clothes washer, shower, lavatory supply pipe size 3/8 inch ⌀ (9.5mm) - answerKitchen sink, lavatory, WC fixture pipe size Heat fusion joint - answerWhat kind of joint which utilizes heat as a means of bonding monolithically plastic pipes and fittings of homogeneous composition? Copper Piping - answer· pipe with strong resistance to corrosion; also called copper tubing due to its thin walls