Unit 311 MIG October phase test

What is this type of MIG torch?

• Water cooled torch

• Spool on torch

• Swan neck torch

• Push/pull torch

The torch in question 1 would be used for which of the following reasons?

• To quickly change reels of wire

• When using a long harness from the wire feed unit to the torch

• To use with aluminium welding wire

• To be used when welding in the PF position

This torch is best suited for which two answers?

• When welding different metals frequently

• When welding austenitic stainless steel

• When welding a long distance from the wire feed unit

• When welding aluminium

Suggest two purposes of a gas solenoid valve?

Shielding gas cylinders are identified by which two methods?

• Cylinder label

• Emailing the supplier

• Cylinder colour code

• Opening the valve and smelling the gas

Suggest one advantage and one disadvantage of a manifold system for supplying shielding gas into a workshop.

Tick two benefits of a two stage regulator.

• Regulator doesn't freeze up

• Pressure lowers as cylinder empties

• Visually see cylinder content and demand pressure

• Constant output pressure as the cylinder empties

What is the purpose of this on torch flow meter?

Give four safety considerations that should be observed when handling, Transporting and storing shielding gas cylinders.

Workplace Exposure Limits are are British occupational exposure limits, and are set in order to help protect the health of workers from hazardous substances. Two time periods are used when testing workers exposure, they are STEL and LTEL. What do these stand for and how long are the limits?