1) What equipment is used to gain access to work in the center of a tiled or roof? a) scaffold board with short battens nailed across as footholds, resting securely in the gutter b) roof ladder which is long enough to hook over the ridge of the roof c) rope fastened securely over the other side of the roof and a harness worn by the operative d) mobile tower scaffold with wheels and stabilisers. 2) What is a requirement for the care of ladders? a) Aluminium ladders should only be painted with aluminium paint. b) All cracks in wooden ladders should be filled, sanded down and painted with two coats of gloss paint. c) Ladders should only be stored in a vertical position. d) Ladders should not be painted. 3) What is true regarding the wearing of personal protective equipment? a) Hard hats (safety helmets) need not be worn when a plumber is working in an excavation. b) Hard hats (safety helmets) must be worn for every operation carried out by a plumber. c) Hard hats (safety helmets) must be worn when any work is being carried out above the wearer. d) Hard hats (safety helmets) need not be worn for any maintenance work. 4) What elements must be present for an employer to provide under the Health and Safety at Work Act? a) Safe plant and equipment, but not a safe working environment. b) A safe working environment, including plant and machinery. c) Safe notices and protective helmets only. d) A safe means of access to the site and protection for the public only. 5) What elements are required to start a fire and keep it going? a) A fuel, carbon monoxide, an ignition source. b) A fuel, an ignition source, nitrogen. c) Oxygen, an ignition source, carbon dioxide. d) A fuel, oxygen, an ignition source. 6) What do mandatory signs signify? a) give directions to facilities b) warn of any hidden dangers c) are signs that must be obeyed d) are for foreign visitors. 7) At what height must a guard rail be positioned above a working platform? a) 450mm b) 600mm c) 910mm d) 1500mm. 8) Electricity on site is normally reduced to a lower voltage. Which of the following is regarded as the general site voltage? a) 110 volts b) 24 volts c) 230 volts d) 400 volts. 9) Extra care should be taken when working with LPG in trenches because: a) the gas could make the trench walls unstable b) LPG is stronger in trenches c) LPG is heavier than air and will remain in the trench d) Below ground pressure is greater on the gas cylinder. 10) When must an employer produce a written health and safety policy statement under the Health & Safety at Work Act? a) 5 operatives or more b) 4 operatives or more c) 2 operatives or more d) 1 operative or more. 11) When bending copper pipe by the spring bending method, the pipe is bent a little more than the angle required; the bend is then opened slightly to: a) ensure that the pipe is bent to exactly the correct angle b) prevent 'ripples' forming on the bend c) prevent the pipe being 'throated' d) release the spring. 12) What is a plumber's first action when receiving delivery of sanitary ware to a site? a) are free from damage/defects b) meet the correct specification c) are Water Regulation Advisory Scheme approved d) include fixing instructions. 13) What type of screw would be used to fix a radiator bracket to a concrete block wall? a) Steel counter-sunk b) Self-tapping c) Mirror screw d) Chipboard screw 14) Why are copper pipes cleaned? a) allow the solder to adhere to pipe surfaces b) permit them to be painted c) enable the flux to adhere to the surface d) to prevent electrolytic corrosion. 15) How can LCS tube be jointed? a) capillary joints b) solder ring joints c) bronze welded joints d) threaded joints. 16) What is the first action that should be carried out when commencing major installation work in a private dwelling? a) Check the immediate work area for signs of damage to the decor b) Lift the carpets and remove furniture in the work area, sheeting as necessary c) Lift the floorboards and notch the joists in the required positions d) Sheet the carpet and drill holes through external walls, as required 17) According to regulations, what is the maximum diameter of hole that can be drilled in a first-floor joist that is 220mm deep in order to accept plastic pressure pipe? a) 25mm b) 30mm c) 45mm d) 55mm 18) How is medium grade low carbon steel tube color-coded? a) yellow b) red c) brown d) blue 19) What temperature is 373K in the Celsius scale? a) 173°C b) 100°C c) -173°C d) -200°C 20) What does the symbol "Δt" represent? a) Difference in temperature b) Direct temperature c) Difference in pressure d) Direct pressure 21) What is it called when a gas changes state into a liquid? a) Evaporation b) Condensing c) Sublimination d) Expansion 22) What is it called when a liquid changes state into a gas? a) Evaporation b) Condensing c) Sublimination d) Expansion 23) What is atmospheric pressure at sea level? a) 0 bar  b) 1.01 bar c) 10. 1 bar d) 100 bar 24) At what temperature would water boil if subjected to 3 bar of pressure? a) 100°C b) 110°C c) 123°C d) 143°C 25) What term describes the energy used to change the state of a substance which is released during evaporation? a) Sensible heat b) Total heat c) Latent heat d) Specific heat 26) Which equation describes a Joule? a) 1 kJ/s b) 1W/s c) 1Nm d) 1W/m 27) What is the specific heat capacity for water under atmospheric conditions? a) 1 kj/kg/°C b) 3. 14kj/kg/°C c) 4. 18kj/kg/°C d) 9. 18kj/kg/°C 28) Which equation calculates the linear expansion within a 10-meter length of copper pipe if it was heated by 30°C? a) 3.14 X 10 X 30 b) 10 x 30 x 0.000016 c) 30 x 10 x (0.000011) d) 4. 18 x 30 x 10 29) What is the maximum depth a water main service pipe should be laid at? a) 750mm b) 1250mm c) 1,350mm d) 1,750mm 30) What does Fluid category 1 represent? a) a serious health risk b) a significant health risk c) a slight health risk d) no health risk 31) What water pipe connects the local main to the water undertaker's stop valve? a) The distribution pipe b) The communication pipe c) The feed pipe d) The service pipe 32) How must a cold-water storage cistern base be supported? a) over the whole of its base b) over at least three bearers c) by using chipboard d) over most of its base 33) What backflow prevention device must be installed on a supply to a hose union bib tap according to the Water Regulations? a) AUK 2 air gap b) Single check valve c) Full-way gate vale d) Double check valve 34) From which material is plastic medium density supply pipe, colored blue, manufactured? a) Polyethylene b) Polystyrene c) Polypropylene d) Polybutylene 35) According to the Water Regulations, what must a mixer tap have if it allows the hot and cold water to mix in the body of the tap with unbalanced pressures? a) a double check valve on both hot and cold supplies b) a single check valve on both hot and cold supplies c) an AUK 2 air gap d) an AUK 3 air gap. 36) What is the minimum depth at which a water main service should be laid? a) 1,350mm b) 1,150mm c) 950mm d) 750mm 37) Where should the cold feed be connected on a domestic hot water cylinder? a) Bottom b) Top c) Middle d) A third of the way up 38) Which type of tap would be best suited for an elderly person with arthritis? a) Bib tap b) Long neck pillar tap c) Non-rising tap d) Quarter turn tap 39) What is meant by the term 'heat recovery'? a) The time taken for the boiler to get to temperature b) The time taken to heat up a full cylinder of hot water c) The time take for the primaries to start heating the cylinder d) The time taken for the cylinder thermostat to activate the boiler 40) What does the diagram show? a) Electric shower b) Double impeller shower c) Gravity shower d) Single impeller shower 41) What does WRAS stand for? a) Water Revival Advanced Scheme b) Winter Regulations and Spring c) Water Regulations Advisory Scheme d) Water Ripples and Systems 42) What should you do if there is a faulty full-way gate valve in the system? a) Replace the back nut to release the fault b) Replace the body of the valve and leave the head gear c) Lubricate the body to release the fault d) Replace the whole valve 43) What is the best description of category 1 water? a) Water stored at 60°C b) Wholesome water c) Water that offers a slight health risk d) Water that has a mild chemical added 44) What device is used to protect category 1 water from being contaminated by category 2 water? a) RPZ valve b) AUK1 air gap c) Single check valve d) AG air gap 45) In a central heating system the flow and return water:- a) the flow and return water mixes b) the flow and return water is kept separate c) the flow and return water is at the same temperature d) the flow water is at a lower temperature than the return water. 46) In which system can the boiler position be higher than the hot water cylinder? a) system with microbore heating with gravity primaries b) combined hot water and heating system with vented primaries c) one-pipe gravity system d) fully pumped sealed system. 47) Identify the component in the image below. a) Thermostatic radiator valve b) Pressure relief valve c) Bypass valve d) Filling loop 48) Which component could be fitted with a remote sensor? a) A thermostatic radiator valve b) A kickboard convector heater c) A diverter valve d) A two-port zone valve 49) What component allows independent control of hot water and central heating? a) Room thermostat b) Cylinder thermostat c) Programmer d) Three-port mid-position valve 50) What assists in the removal of flux from central heating pipework? a) Adding an inhibitor to the system after commissioning b) Setting the working temperature of the system to a maximum of 65°C c) Flushing the system out prior to the handover d) Setting the circulator to maximum for one hour after soundness testing 51) How is a heating system temporarily decommissioned to add another radiator? a) Check for safe isolation of central heating system, then drain down b) Switch off programmer so there is no call for heat, then drain down c) Apply temporary continuity bonding to system, then drain down d) Bung F&E and apply temporary continuity bonding to flow and return pipework 52) If downstairs radiators are cold and upstairs radiators are lukewarm, what might be faulty? a) boiler b) three-port mid-position valve c) room thermostat d) circulator. 53) What is the minimum recommended trap diameter for a kitchen sink waste? a) 32mm b) 40mm c) 50mm d) 75mm 54) What type of gutter cross-section is shown? a) half round b) Ogee c) Victorian d) Square 55) What is the recommended fall for a domestic guttering system? a) 1:400 b) 1 :600 c) 1:500 d) 1 :700 56) Why is there a gap designed into a snap clip PVCu gutter fitting? a) To allow for thermal expansion b) To allow for mistakes c) Ease of installation d) As a traditional guide which is no longer relevant 57) What is the component shown used for on a rainwater discharge system? a) To discharge rainwater into a gulley b) To secure a high-level offset RWP c) To make angle connections d) To enable ease of removal in case of blockage 58) What is the name of the component that connects several downpipes together? a) Stop end b) Hopper head c) Running outlet d) Rainwater shoe 59) Which document gives guidance on the installation of sanitary appliances? a) BS 6700 b) BS 12056 c) Approved document G (H in Northern Ireland) d) The Water Regulations 1999 60) What fixings would be used to fix a WC cistern to a wall of a bathroom? a) Silicone sealant b) Single-thread brass screws c) Large headed copper nails d) Steel screws

Level 2 Paper 4.

by
Print
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?