WorksheetsMTL2 Hot Water Learner Outcome 2
Total questions: 14
Worksheet time: 7mins
Building Regulations Approved Document G mainly covers:
Gas pipe sizing
Hot water safety and water efficiency
Electrical installations
Roof drainage
The Gas (Installation and Use) Regulations apply to:
Plastic pipework
Gas-fired hot water appliances
Cold water systems
Roof venting
What do the IET Wiring Regulations (BS7671) cover?
Boiler flue locations
Electrical safety for hot water and heating systems
Water pressure control
Pipe insulation
What does BS EN 806 Part 1 relate to?
Gas use
Plumbing exams
General requirements for water installations
Cylinder storage
What does BS EN 806 Part 3 describe?
Pipe support types
Pipe sizing methods
Boiler maintenance
Gas safety checks
What is the purpose of BS 8558:2015?
To design bathrooms
To guide water system design, installation and testing
To inspect roofs
To replace gas regulations
What document gives guidance on flushing and disinfection?
BS EN 806 Part 4
BS 8558
PD 855468:2015
Building Reg Part L
Why should manufacturer’s instructions always be followed?
They save time
To avoid reading regulations
They ensure safe, compliant installation
They are optional advice
If manufacturer’s instructions are ignored, what might happen?
Water pressure increases
Warranty may be void
Flow rate improves
Temperature rises
Before work begins, what should be done to protect customer property?
Ignore it
Use bare floors
Use dust sheets and covers
Paint surfaces
What type of valve should be used to isolate cold water before a cistern?
Drain valve
Stopcock only
Service valve
Check valve
What size pipework is typical for small domestic hot water systems?
10 mm
15–28 mm
32 mm only
50 mm only
What tools are commonly used when working on hot water systems?
Wood saw
Pipe cutter and adjustable spanner
Hammer and nails
Paint brush
Why is it important to protect floors and furniture before work?
To make cleanup easier
To prevent property damage and maintain professionalism
To hide dirt
It’s not important
