Building Regulations Part L relates to the conservation of ______. ____ A feed and expansion cistern allows system water to ______. ____ The open vent pipe provides a safety outlet if the system ______.____ A sealed heating system uses an ______ instead of an F&E cistern.____ System water expands by approximately ______ percent when heated. ____ Gravity heating systems circulate water using ______ currents. ____ In a one-pipe system, each radiator becomes progressively ______. ____ A two-pipe system allows all radiators to reach the same ______. ____ The golden rule of pump positioning is that it must draw on the ______. ____ Incorrect pump positioning can lead to aeration and ______. ____ insulation Magnetite is commonly described as ______ sludge. ____ An automatic bypass valve helps to protect the ______ when valves close.____ A cylinder thermostat is normally positioned ______ of the way up the cylinder. ____ Room thermostats should be installed approximately ______ metres above floor level. ____ Thermostatic radiator valves react to changes in ______ temperature. ____ One radiator must be left without a TRV in the same room as the ______. ____ Inhibitor is added to heating systems to prevent corrosion and ______. ____ The index radiator is the radiator that heats up ______. ____ Boiler interlock ensures the boiler only fires when there is a ______. ____ A pressure relief valve discharges excess pressure to a ______ location. ____

Central Heating 06

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