processppt2plenary

Explain the correct procedure for changing a hacksaw blade.

Why is it important to remove internal burrs after cutting a pipe with tube cutters?

State two types of soldered capillary joints.

When might it be desirable to use flame-free methods of jointing copper pipes?

How can you ensure that the tube has been fully inserted into a push-fit fitting?

Find out and list the names of three manufacturers of push-fit fittings for copper tube.

When using copper pipework, the X dimension is:

• The centre of the fitting to the engaged length

• The edge of the fitting to the edge of the pipe

• The centre of the fitting to the end of the pipe

• The engaged length to the end of the pipe.

How is a soldered joint formed? Circle the correct answer.

• When the fitting is heated, the flux melts and forms a seal.

• When the fitting is heated, the solder melts and is drawn into the fitting by capillary action.

• When the fitting is heated, the copper fuses together.

• When the fitting is cooled, the oxide forms and seals the joint.

How can you tell the different grades of LCS apart?

What are the two main methods of jointing LCS?