9189 - Phase 2 - Unit 305 - Cold Water Systems

How many UK fluid categories are there?

• 4
• 5
• 6
• 3

What temperature do the Water Regulations state that cold water must never reach?

• 10 degrees Celsius
• 15 degress Celsius
• 5 degrees Celsius
• 25 degrees Celsius

What are the two main considerations when installing a new incoming cold water supply?

• Flow and colour
• Temperature and pressure
• Taste and temperature
• Pressure and flow

Where should a drain-off valve be fitted?

• Immediately above the internal stop valve and at every low point
• At every appliance to aid system draining
• Below the cold water storage cistern to avoid wasting water
• Immediately below any appliance supplied by the mains

Between what depths should the service pipe be laid?

• 650 to 1300mm
• 800 to 1600mm
• 750 to 1350mm
• 350 to 700mm

If a tap washer in a tap is damaged, what would be the likely effect?

• The tap would drip from the outlet
• The tap would drip from the body
• The tap would drip from the spindle
• The tap would drip from the handle

What material is a modern service pipe made from?

• R250 half hard copper
• Lead
• ABS
• MDPE

According to the Water Regulations and BS EN 806, how should a cold water storage cistern be installed in a loft area?

• Next to an outside wall
• Supported over its entire base
• Have 750mm clearance on all sides
• Insulated under the whole base

Which of the following is regarded as a 'surface water' source?

• Underground reservoir
• Cold water storage cistern
• Rising main
• Lake

Why is a BS1212 Part 1 Portsmouth FOV not allowed to be installed in a WC cistern?

• The material it is made of could cause contamination
• The AG air gap cannot be maintained
• The float is too big for a modern cistern
• It can only be used on low pressure systems