WorksheetsCOMMON PLUMBING PROCESSES
Total questions: 15
Worksheet time: 8mins
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
ensure that the pipe is bent to exactly the correct angle
prevent ‘ripples’ forming on the bend
prevent the pipe being ‘throated’
release the spring
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
1/4 of the depth of the floor joist
1/5 of the depth of the floor joist
1/6 of the depth of the floor joist
1/8 of the depth of the floor joist
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?
Job specification
Site plan
Water Regulations
Installation plan
An extension light with a bulb protector of unbreakable glass or wire cage will usually be required when working
in bathrooms
in roof spaces
in a kitchen
on sheet lead
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
record that this has been brought to the customer’s attention and report the facts to the immediate job supervisor
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
try to be helpful to the customer and attempt to remove the marks
carry on with the work without taking any further action
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?
Remove the stairs to permit the bath to be lifted to the first floor location.
Build a timber crate around the bath to help with the lifting process.
Carefully cover all the carpeted surfaces with thick dust sheets.
No particular actions are necessary.
Upon completion of the plumbing installations on an estate of new dwellings, each homeowner must be provided with
the appliance operating instructions
the site plan showing the position of their house on the site
copies of all material delivery notes for work on their house
copies of the work schedules for work on their house.
A delivery advice note is provided by the
customer to let the supplier know when to deliver materials
customer to confirm the details of the materials required
supplier to confirm the number and type of materials that are delivered
customer to show the delivery address for materials.
Which one of the following documents states the exact price that a plumber’s merchant will supply materials for?
Quotation
Estimate
Specification
Invoice
Information on the likely delays to the work of other trades, brought about by the delivery of incorrect materials, can be found in the
Bill of Quantities
Plumbing Installation Specification
Work Programme
Site Plan
Details of the quantity of materials available for use on site can be obtained from
the site stock record
the security system
the Bill of Quantities
site meetings
Incorrect installation and / or operation of a gas fire would be indicated by
discolouration of wallpaper at the top corners of the room
the colour of the flames from the gas fire burner
discolouration of the wallpaper on an adjacent wall
dirt on the base of the hearth and gas fire legs
Refer to Figure 1, which shows a 15 mm copper pipe with a single 90º 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
391 mm
781 mm
821 mm
841 mm
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
185 mm
270 mm
315 mm
330 mm
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
22 mm
30 mm
38 mm
46 mm
