Plumbing Processes and Techniques

What is the maximum depth of a notch that can be made in a joist that is 200mm deep?

• 25mm

• 50mm

• 175mm

• 200mm

What is the minimum distance from the wall that a notch can be placed?

• 25mm

• 175mm

• 200mm

• 50mm

What size is the largest permissible drilled hole in a joist that is 200mm deep?

• 50mm

• 25mm

• 175mm

• 200mm

Where in the joist can the hole be drilled?

• On the centre line of the joist only

• Anywhere in the joist

• At the ends of the joist

• Near the supporting structure

How close together can drilled holes be placed?

• Holes should be no closer together than three times their diameter

• Holes can be placed anywhere

• Holes should be placed at least 10mm apart

• Holes should be placed at least 5mm apart

What should be done to protect pipework laid in floors and across joists?

• Covered with lagging

• Left exposed

• Painted

• Wrapped in plastic

What is the purpose of a materials requisition system?

• To book materials out of the stores

• To store materials

• To deliver materials

• To monitor stock levels

What should be done with any protective tape or plastic coverings on sanitaryware before installation?

• They should be removed

• They should be left on

• They should be painted over

• They should be checked for damage

What is the maximum permissible drilled hole size in a joist that is 200mm deep?

• 50mm

• 25mm

• 175mm

• 200mm

What should be done to protect the customer’s garden when working outside?

• Use walk boards across flowerbeds

• Dig ladders into lawns

• Leave the garden as is

• Cover the garden with plastic