Installation of Gas Pipework

What is the maximum diameter for gas pipework installation in Unit 308?

• 25mm

• 30mm

• 35mm

• 40mm

In Unit 308, gas pipework is installed in _______ and small commercial premises.

• A) industrial

• B) domestic

• C) agricultural

• D) educational

Fill in the blank: Waterproof membranes are used in pipework installation to prevent ________.

• Water leakage

• Heat loss

• Sound travel

• Light reflection

Why must all pipework be confirmed gas tight before being covered in protective tape?

• To prevent rust

• To ensure proper insulation

• To prevent leaks from being detected under test conditions

• To enhance durability.

The installation of pipework within the cavity is prohibited by Regulation 19, except for installations where the fire is designed to be inset within the ______ skin of the cavity wall.

• Outer

• Inner

• Top

• Bottom

What is the main reason for using a gas tight sleeve for pipework through cavity walls?

• To support the pipe

• To protect against movement

• To decorate the wall

• To increase flow rate

What is the requirement for the width of the sleeve in gas engineering?

• Half the width of the wall

• Full width of the wall

• Double the width of the wall

• No specific requirement.

What should you be careful not to do when re-fitting the floorboards?

• Paint the floorboards

• Screw/nail through the pipe

• Remove the pipes

• Bend the pipes

The maximum drilled hole in a typical engineering timber joist is what fraction of the joist depth?

• 1/4

• 1/3

• 1/2

• 3/4

What should not be laid directly within the concrete slab?

• Pipework

• Electrical wiring

• Insulation

• Flooring