1) What heating system uses a difference in the density of water to circulate heat to a hot water cylinder? a) Y plan b) Gravity fed c) S plan+ d) Hypocaust 2) The conservation of fuel and energy is covered by which approved document? a) Building regulations part P b) Building regulations part M c) Building regulations part H d) Building regulations part L 3) What is the main purpose of a central heating system? a) To heat up the core of the building b) To provide thermal comfort to a property c) To supply heating to a single room d) To provide heat to a number of properties 4) What is at the highest point of a vented heating system? a) Expansion vessel b) Feed and expansion cistern c) Cold feed isolation valve d) Automatic air vent 5) What is the primary function of the open vent on a central heating system? a) To allow the system to pressurize b) To allow the system to operate at atmospheric pressure c) To provide sufficient oxygen to the heating system d) To provide a means of ventilation when filling the system 6) What type of heating system incorporates a three-port valve that gives priority to the hot water system? a) S plan b) S plan+ c) Y plan d) W plan 7) What three components are required when converting an open vented system with a sealed system? a) Automatic air vent, low loss header, filling loop b) Filling loop, expansion vessel, pressure gauge c) Pressure relief valve, filling loop, expansion vessel d) Expansion vessel, automatic air vent, pressure gauge 8) What is the name of the component below? a) Mixer bar b) Low loss header c) Manifold d) Filling loop 9) What type of heating system charges using low-cost off-peak tariffs? a) District b) Electric storage c) Y plan d) Warm air 10) What type of heating system can be split into zones that serve a cluster of houses and buildings? a) District b) Underfloor c) Microbore d) Thermosyphon 11) For the purpose of heating a property, why is central heating normally preferred over an open fire? a) It heats the whole home b) It costs less to install c) It is easier to install d) It is simpler in design 12) What type of heating system is shown in the diagram? a) Pumped heating only b) Fully pumped c) One piped gravity d) Two piped semi gravity 13) What type of heating system is shown in the diagram? a) Fully pumped with two 2 port valves b) Fully pumped with mid position valve c) Pumped heating only system d) Pumped heating with gravity hot water system 14) Which is the most energy-efficient system installation? a) 1 pipe system with gravity hot water b) 2 pipe system with gravity hot water c) Fully pumped system with 3 port valve d) 2 pipe semi gravity with heat sink 15) What is the main advantage of a 1 pipe central heating system? a) Cheap to install b) Energy efficient c) Quicker to heat up d) Cheaper to run 16) What is the function of the central heating component shown? a) To fill the system with water at the required temperature b) To separate air from water in the system c) To increase the circulating pressure of the pump d) To filter the contents in the system 17) What is one of the main functions of the component in the image? a) Isolate the radiators b) Prevent boiler backflow c) Prolong the pump life d) Adjust the water temperature 18) By what percentage will the system's water expand into the system's feed and expansion system? a) 2% b) 4% c) 6% d) 8% 19) Which heating system allows all rooms to be heated at the same time to the occupier's preferred temperature? a) Background central heating b) Full central heating c) Selective central heating d) Single gas fire 20) In what significant way is selective central heating different from full central heating? a) All rooms are heated at the same time b) It only heats part of the property as required c) It is always installed with smaller boilers and heat emitters d) It is only designed to take the chill off the room

Central Heating Phase 1 Mock

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