Level 2 Plumbing - PP4 - Health & Safety

Which of the following components is used to prevent flashbacks in welding equipment?

• Nozzle

• Torch control valve

• Flashback arrestor

• Pressure regulator

What must be present when using LPG in confined spaces to prevent CO2 buildup?

• A foam extinguisher

• A water extinguisher

• A powder extinguisher

• A CO2 fire extinguisher

What is the correct storage position for LPG cylinders?

• Lying down in a well-ventilated area

• Upright, outside, in a well-ventilated lockable store

• Upside down in a locked cabinet

• Horizontally in a closed room

Which class of fire involves flammable gases like propane and butane?

• Class A

• Class B

• Class D

• Class C

What should be used to detect leaks in LPG equipment?

• Leak detection fluid

• Water

• Oil

• Foam

What is the chemical reaction formula for fire?

• Fuel + CO2 + heat = fire

• Fuel + oxygen + heat = fire

• Fuel + water + heat = fire

• Fuel + nitrogen + heat = fire

What should be done when soldering under a suspended floor?

• Check for anything that could catch fire

• Point a blowtorch directly at combustible material

• Replace floorboards immediately

• Leave the area immediately

• LPG is lighter than air​

• True

• False

What fire extinguisher​ can you use on all fire?

• Powder

• Water

• Foam

• CO2

• LPG can be stored in cellars​ and near drain entrances​.

• True

• False