Common Plumbing Processes Mock 1 PDF

# COMMON PLUMBING PROCESSES MOCK 1 ## **1. With reference to a large job with all trades in attendance, which one of the following information sources states who is responsible for cutting holes in walls and floors, for systems pipework?** - a) Job-specification. - b) Site plan. - c) Water Regulati...

# COMMON PLUMBING PROCESSES MOCK 1 ## **1. With reference to a large job with all trades in attendance, which one of the following information sources states who is responsible for cutting holes in walls and floors, for systems pipework?** - a) Job-specification. - b) Site plan. - c) Water Regulations. - d) Installation plan. ## **2. An extension light with a bulb protector of unbreakable glass or wire cage will usually be required when working** - a) in bathrooms - b) in roof spaces - c) in a kitchen - d) on sheet lead. ## **3. A pre-installation inspection of an occupied dwelling, where a new bathroom suite is to be installed, reveals dirt marks on the landing wall. These are brought to the attention of the customer who states that it does not matter as they are going to re-decorate. The correct action would be to** - a) record that this has been brought to the customer's attention and report the facts to the immediate job supervisor - b) record that this has been brought to the customer's attention, but not report to the job supervisor, because it will not be a problem - c) try to be helpful to the customer and attempt to remove the marks - d) carry on with the work without taking any further action. ## **4. A cast iron bath needs to be moved to the first floor bathroom in an occupied private property. Which of the following actions should be taken?** - a) Remove the stairs to permit the bath to be lifted to the first floor location. - b) Build a timber crate around the bath to help with the lifting process. - c) Carefully cover all the carpeted surfaces with thick dust sheets. - d) No particular actions are necessary. ## **5. Upon completion of the plumbing installations on an estate of new dwellings, each homeowner must be provided with** - a) the appliance operating instructions - b) the site plan showing the position of their house on the site - c) copies of all material delivery notes for work on their house - d) copies of the work schedules for work on their house. ## **6. A delivery advice note is provided by the** - a) customer to let the supplier know when to deliver materials - b) customer to confirm the details of the materials required - c) supplier to confirm the number and type of materials that are delivered - d) customer to show the delivery address for materials. ## **7. Which one of the following documents states the exact price that a plumber's merchant will supply materials for?** - a) Quotation. - b) Estimate. - c) Specification. - d) Invoice. ## **8. Information on the likely delays to the work of other trades, brought about by the delivery of incorrect materials, can be found in the** - a) Bill of Quantities - b) Plumbing Installation Specification - c) Work Programme - d) Site Plan. ## **9. Details of the quantity of materials available for use on site can be obtained from** - a) the site stock record - b) the security system - c) the Bill of Quantities - d) site meetings. ## **10. Incorrect installation and / or operation of a gas fire would be indicated by** - a) discolouration of wallpaper at the top corners of the room - b) the colour of the flames from the gas fire burner - c) discolouration of the wallpaper on an adjacent wall - d) dirt on the base of the hearth and gas fire legs. ## **11. Refer to Figure 1, which shows a 15 mm copper pipe with a single 90° bend. Dimensions A and B are each from the end of the pipe to the start of the bend. The overall length of pipe required to make the bend shown is** - a) 391 mm - b) 781 mm - c) 821 mm - d) 841 mm. ## **12. The required distance between the centres of two equal tee fittings on a copper pipeline is 300 mm. The 'X' dimension (centre of tee to end of pipe) of the tee fittings is 15 mm. The length of the piece of pipe between the tees is** - a) 185 mm - b) 270 mm - c) 315 mm - d) 330 mm. ## **13. To comply with the requirements of the Building Regulations Approved Document A, the maximum depth of cut to be made in a floor joist that is 180 mm deep by 50 mm thick, is** - a) 22 mm - b) 30 mm - c) 38 mm - d) 46 mm. ## **14. To comply with the requirements of the Building Regulations Approved Document A, the recommended maximum diameter of holes drilled in timber floor joists should be no greater than** - a) 1/4 of the depth of the floor joist - b) 1/5 of the depth of the floor joist - c) 1/6 of the depth of the floor joist - d) 1/8 of the depth of the floor joist. ## **15. When bending copper pipe by the spring bending method, the pipe is bent a little over the angle required, then the bend is 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. ## **16. A new blade in a frame type hacksaw should be fitted** - a) under tension with teeth facing backward - b) under tension with teeth facing forward - c) not tensioned with teeth facing forward - d) not tensioned with teeth facing backward. ## **17. The recommended clipping distances for pipe fixings on 15 mm copper pipe are** | Vertical pipe | Horizontal pipe | |---|---| | a) 1600 mm | 1000 mm | | b) 1700 mm | 1700 mm | | c) 1800 mm | 1200 mm | | d) 2000 mm | 1000 mm | ## **18. A plumbing operative has been asked to remove an old fire back boiler in the living room of a house where no dustsheets are available to protect the furniture. What action should be taken?** - a) Carry on and clean up the mess later. - b) Borrow some bed sheets from the airing cupboard. - c) Refuse to carry out the job under any circumstance. - d) Return to the workshop to obtain clean dust sheets. ## **19. On a large construction contract, which one of the following acts on behalf of the customer to ensure that work is carried out according to the specification?** - a) Services engineer. - b) Clerk of Works. - c) Site Agent. - d) Main contractor. ## **20. The main role of the Quantity Surveyor is to** - a) take responsibility for company safety policy - b) take on and discharge labour - c) measure amounts of materials used on contracts - d) deliver quantities of tools and equipment to sites. ## **21. When cutting copper tube with a wheel cutter, 'tracking' or 'spiralling' can occur when the** - a) cutter is over tightened - b) pipe is of the wrong temper - c) thread on the cutter tightening mechanism is damaged - d) cutter wheel is not correctly aligned with the pipe. ## **22. Hydraulic oil levels must be regularly checked on a** - a) threading machine - b) pillar drill - c) steel pipe bender - d) electrical hacksaw. ## **23. The local Water Company must be advised when a plumber needs to** - a) drain a domestic hot water system for decommissioning - b) disconnect an above ground discharge pipework system from a drainage system - c) add additional roof drainage to a rainwater pipe system - d) discharge large quantities of disinfectant to the drainage system. ## **24. Which one of the following will contain a list of replacement parts for a system component or control?** - a) Manufacturer's technical literature. - b) The installation specification. - c) Installation plan. - d) Site plan. ## **25. A commercial customer needs to plan systems maintenance. To minimise inconvenience to the customer's business operations, the plumbing contractor should provide the customer with** - a) a maintenance schedule for the systems - b) detailed technical information on system components - c) an installation plan showing the location of system controls - d) a list of approved contractors in the various trades. ## **26. Which one of the following shows the point at which it would be best to commence liaison with a customer who requires maintenance work, involving the isolation of the cold water supply in a shop?** - a) On starting the job. - b) During the job if any problems arise. - c) In advance of the work. - d) Upon completion of the job. ## **27. Which one of the following items should a plumber attempt to re-install on the same day, when replacing the only bathroom suite in an existing occupied property?** - a) Bidet. - b) WC suite. - c) Bath. - d) Shower tray. ## **28. A hot and cold water storage system is due to be serviced in a property in which a plasterer is working. Before commencing the service, the plumber should** - a) establish whether the plasterer has drawn off sufficient water - b) immediately isolate the supply on arriving on site - c) make sure there is enough water for refreshments - d) leave the site and refuse to do the work. ## **29. Which one of the following is an item of information that should be included on a maintenance record?** - a) Water undertaker name. - b) Position of first aid boxes. - c) Location of the property. - d) Fire safety procedure. ## **30. When connecting a new bathroom extension to an existing hot and cold water system, the plumber should** - a) connect the mains pipework to the extension as the first item of work - b) connect the mains pipework to the extension as the last item of work - c) turn the supply off for the duration of the work - d) leave the connection to be made by the Local Water Undertaker. ## **Figure 1** The image in Figure 1 shows a 15 mm copper pipe with a single 90° bend. Dimensions A and B are each from the end of the pipe to the start of the bend. The figure shows the pipe bent in a quarter-circle shape with the bend radius marked as 90mm. Dimension A is marked as 400 mm, and dimension B is marked as 300 mm. The formula shown is: Formula = 2 X 3.142 XR divided by 4 .