1) Which of the following materials expands the most? a) Copper b) Steel c) Brass d) PVC plastic 2) What is the correct calculation to determine the volume of a cylinder? a) 3.14 x radius2 x height b) 3.14 x diameter x height c) Diameter/ height x (3.14)2 d) 3.14 x diameter2 3) An electrical immersion heater is required to provide 36,000kJ of heat energy to heat a cylinder. What is the power of the immersion heater if it raises the temperature of the water to its design temperature within one hour? a) 10 watts b) 10Kw c) 100 watts d) 100kW 4) What is the SI unit for force? a) Pascal b) Newton c) Joule d) Bar 5) How can pressure be defined? a) Force divided by area b) Area divided by force c) Force multiplied by area d) Volume multiplied by force 6) When preparing to disinfect a cold-water system within an occupied block of flats, what should be placed at each outlet? a) A contact number for the plumber b) Warning notices c) Neutralising agents d) Residual chlorine test kits 7) For an RPZ valve to meet its product specification it should be: a) provided with a drain pipe via a tundish b) installed without isolation valves c) sited close to an electrical supply d) only installed in a very low pressure supply 8) When flushing a domestic cold water system, which one of the following types of liquid should be used? a) Concentrated disinfectant b) Drinking water c) Diluted disinfectant d) Recycled water 9) Pressure testing of underground service pipework should take place: a) before backfilling has started b) after approval from the clerk of works c) after backfilling has been completed d) after approval from the water supplier 10) To eliminate the risk of contamination from undue warming, the cold water pipework must never be allowed to exceed what temperature? a) 20°c b) 25°C c) 30°C d) 35°C 11) Identify this item. a) Fullway gate valve b) Drain off valve c) Part 2 float operated valve d) Stop valve 12) Which system can this appliance be connected to? a) Low pressure system fed from a cold-water storage cistern b) Thermal store heater c) Single point water heater d) Unvented hot water system 13) What type of hot water system is shown? a) Low pressure gravity system b) Thermal store hot water system c) Unvented hot water system d) Primatic hot water system 14) What is this item called? a) Ex pansion vessel b) Tundish c) Strainer d) Pressure reducing valve 15) Which of the following is not a statutory source of information? a) Building Regulations Part L b) The Water Supply (Water Fittings) Regulations c) BSEN806 d) Approved Document Part G 16) The minimum size for an open vent pipe is... a) 15mm b) 22mm c) 28mm d) 35mm 17) Which one of the following is the best installation position for a cylinder thermostat? a) ¼ down from the top of the cylinder b) ½ down from the top of the cylinder c) ¼ up from the bottom of the cylinder d) ½ up from the bottom of the cylinder 18) Which port is the central heating flow connected to on a mid- position valve? a) A b) B c) AB d) BA 19) In a central heating installation, the primary pipework connects the ... a) Boiler and the cylinder b) Cylinder and the outlets c) Cylinder and the radiators d) Feed cistern and the cylinder 20) Condensing boilers are specifically designed to ... a) Provide stored hot water b) Extract less heat from the flue gases c) Extract more heat from the flue gases d) Provide hot water at low temperatures 21) This component that helps prevent which problem? a) Cross-flow b) Compression c) Air admittance d) The use of bends 22) Sanitary appliances are designed to safely discharge which of the following? a) Wholesome water b) Soil and waste water c) Gas and oil d) Green water recycling 23) What is the minimum height of the soil vent pipe marked x in the image a) 600mm b) 750mm c) 800mm d) 900mm 24) Which Building Regulation approved document refers to foul water drainage? a) H1 b) H2 c) H3 d) H4 25) What is the minimum recommended pipe diameter for a waste pipe discharging from a washing machine? a) 32mm b) 40mm c) 50mm d) 75mm 26) What would not determine the maintenance requirements of a rainwater system? a) The age of the system b) The location of the property c) The height of the gutter d) Type of guttering material 27) If there is no facia board on the property, what bracket could be used to secure the gutter in place? a) Stand-off bracket b) Rafter bracket c) Purlin bracket d) Eave bracket 28) Which one of the following is not a health and safety consideration when installing cast iron guttering? a) Access to install b) Weight of sections c) Weather conditions d) Type of connection bolts 29) Why should a rainwater system be checked regularly and cleaned, if required? a) Expansion joints need to be relocated b) Plastic regularly cracks c) The system can get blocked with leaves d) To make sure that the flow rate from the roof is correct 30) If you use an on line guttering calculator, apart from the roof size and number of outlets, what other information will be required? a) The roof angle b) The style of roof tiles c) The number of roof protrusions d) The height of the building

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