Gas Safety Presentation Quiz

What is the main focus of the presentation mentioned in the document?

• Electrical safety

• Water conservation

• Gas safety

• Waste management

Which gases are primarily discussed in the presentation?

• Oxygen and Nitrogen

• Methane (CH4) and Liquid Petroleum Gas (LPG)

• Carbon Dioxide and Helium

• Hydrogen and Argon

According to the document, what is the purpose of understanding the principles of combustion?

• To improve fuel efficiency

• To ensure gas safety

• To reduce air pollution

• To increase gas production

What does Regulation 26(9) of the Gas Regulations (GSIUR) mandate?

• Regular maintenance of electrical appliances

• Duties on gas users and operatives to ensure correct combustion

• Installation of water-saving devices

• Recycling of waste materials

What is usually sufficient to detect if complete combustion is taking place on domestic appliances?

• A chemical test

• A visual survey of the flame picture

• A temperature measurement

• A pressure gauge reading

Why is an odourant added to natural gas (NG) and LPG?

• To improve combustion efficiency

• To help identify if there is any gas present in the air

• To increase the energy content of the gas

• To reduce the cost of the gas

What was the chemical originally used to add odour to natural gas?

• Diethyl sulphide

• Ethyl mercaptan

• Tetrahydrothiophene

• Butyl mercaptan

Which chemicals are now more commonly used as odourants in natural gas?

• Methane and propane

• Diethyl sulphide and ethyl mercaptan

• Tetrahydrothiophene and methane

• Butyl mercaptan and propane

How much of the odourant is used to give natural gas a recognisable smell?

• A large amount

• A tiny amount

• No amount

• A moderate amount

What does the toxicity of a gas mean?

• It is flammable.

• It is poisonous and can cause death if inhaled.

• It is odorless.

• It is colorless.