WELDER TRAINING

INFORMATION

Welding Quiz

Answer the four questions by clicking the appropriate radio buttons. Then check your answers below.

1. How should gas pressures be regulated?

At the torch valves
Changing the nozzle size
Adjusting at the regulators
Adjusting the cylinder valve

2. Below is a neutral flame setting. What conditions produce a carburising flame setting?

Excess Acetylene
Excess Oxygen
Equal parts of Acetylene and Carbon Dioxide

Oxy-Flame Equipment

3. What method is to be used to test for leaks on cylinder valves, regulators and all connections?

Listen carefully for the sound of gas escaping from the regulators or connections
Look carefully for signs of gas escaping from the regulators and connections and causing movement in dust particles in the air
Apply 0.5% Teepol solution in water with a brush or an approved leak detection spray and look for any bubbles that may appear
Apply salty water with a brush and look for evidence of escaping gas

4. What thickness of material is leftward welding most suitable for?

Less than 3 mm thick
Greater than 3 mm thick