Level 2 Health & Safety - Working Safely With Gas

What is the cylinder color for Nitrogen?

• Black

• Red

• Blue

• Yellow

How does liquefied petroleum gas behave when mixed with air?

• It becomes non-flammable

• It becomes highly flammable

• It becomes heavier than air

• It becomes lighter than air

What should not be allowed to fall on hoses?

• Water

• Hot metal or spatter

• Dust

• Leaves

What are the characteristics of liquid nitrogen?

• Colourless and odourless

• Coloured and odourless

• Colourless and fragrant

• Coloured and fragrant

What is a characteristic of LPG when stored in cellars?

• Lighter than air

• Heavier than air

• Same weight as air

• Dissolves in air

What should you do before replacing floorboards when using LPG?

• Inspect for water damage

• Inspect for smouldering under the boards

• Check for termites

• Check for loose nails

What materials are involved in Class D fires?

• Metals: aluminium, magnesium

• Flammable liquids: oil, paraffin

• Cooking oils and fats

• Electrical

Which extinguisher is used for Hydrocarbon liquids?

• Water Extinguisher

• Powder Extinguisher

• Foam Extinguisher

• CO₂ Extinguisher

What type of fire extinguisher is represented by the color red?

• Foam

• Powder

• Water

• CO₂

Which fire classes can a cream-colored extinguisher handle?

• A & B

• B & Elec

• A & Elec

• B & C