UNIT 109 PPT 3 KNOWLEDGE CHECK AND STARTER.

What does a 'Coupling' do in copper pipe joining?

• It allows a connection to be made to the pipework run

• It seals the end of a pipe

• It allows two pieces of copper tube to be connected together

• It increases the diameter of a pipe

What is the purpose of an 'Elbow' in copper pipe fittings?

• To connect pipes of different diameters

• To allow the pipework to change direction by 90 degrees

• To increase the pipe diameter

• To seal the end of a pipe

What does a 'Reducer' fitting do in copper piping?

• Allows the connection of a smaller diameter of pipe

• Changes the direction of the pipe

• Seals the pipe end

• Increases the pipe diameter

Why are end feed fittings considered non re-usable?

• They are too expensive

• They cannot be moved once soldered

• They are made of plastic

• They are too fragile

What is the type of fitting that you do not add solder to called?

• Compression fittings

• Solder ring fittings

• Push-fit fittings

• End feed

How does the solder flow around the fitting in solder ring fittings?

• By gravity

• By capillary action

• By pressure

• By diffusion

Why is a square and clean cut end to the pipe necessary?

• To improve water flow

• To avoid damaging the 'O' ring

• To reduce installation time

• To enhance the pipe's appearance

Which component is part of the push fit fitting?

• Nut

• Grab ring

• Washer

• Bolt

What is the function of the O ring in the push fit fitting?

• To secure the fitting

• To provide a seal

• To connect the pipes

• To add weight

What is the role of the tube insert in the push fit fitting?

• To secure the fitting

• To allow pipe connection

• To provide a seal

• To add rigidity so the pipe does not squash.