4. Pipework Standards

• City and Guilds
• Further Education (Key Stage 5)

What type of thread is used on Low Carbon Steel pipework?

1. BSPT
2. Line Cut
3. Narrow Pitch
4. Medium Pitch

Plastic Pipework must be protected from

1. Water
2. Heat
3. UV light
4. Soil

When you join 2 pipes of different materials it causes electrolytic corrosion.
Briefly explain why.

A horizontal 15mm Copper pipe run must be supported every...

1. 1m
2. 2m
3. 0.5m
4. 1.5m

If you are burying a pipe under an area where there will be ONLY foot traffic using concrete slabs, what is its minimum depth.

1. 25mm
2. 40mm
3. 50mm
4. 375mm

Pipework within a protected shaft must be made of what material?

1. Screwed or Welded Steel
2. 22mm Hard Copper
3. 22mm Soft Copper
4. PV

What correct diameter for a temporary bonding cable

1. 16mm
2. 10mm
3. 12mm
4. 15mm

A temporary bonding cable should be placed no more than how far from the meter outlet?

1. 10mm
2. 150mm
3. 25mm
4. 600mm

Briefly explain why we seal only one end of a pipe sleeve

What should you do if you find an existing lead gas pipe on an old installation?

1. Contact the council
2. Immediately replace it
3. Leave it alone, this is allowed
4. Declare the installation Immediately Dangerous