Scientific Principles PPT 5 - Properties of Gasses

Which of the following gases is commonly used for soldering in plumbing?

• Oxygen

• Propane

• Helium

• Nitrogen

What is one of the uses of gases in plumbing?

• Painting

• Cooling

• Space heating

• Insulating

Which of the following gases is used for cooking in plumbing?

• Helium

• Butane

• Neon

• Argon

Which gas is commonly used in domestic properties for boiler and cooker fuel?

• Propane

• Butane

• Natural gas

• Hydrogen

What percentage of the air is nitrogen?

• 21%

• 50%

• 79%

• 100%

Which gas is used for barbecues?

• Natural gas (CH₄)

• Propane (C₃H₄)

• Butane (C₄H₁₀)

• Acetylene (C₂H₂)

Which gas is flammable and used for cutting and welding?

• Oxygen (O₂)

• Carbon dioxide (CO₂)

• Nitrogen (N)

• Acetylene (C₂H₂)

Which of the following is an example of an inert gas?

• Oxygen

• Hydrogen

• Nitrogen

• Methane

Which of the following is a non-reactive gas used in various applications?

• Methane

• Helium

• Oxygen

• Hydrogen

How many cubic meters of oxygen are required for burning 1 cubic meter of natural gas?

• 1m³

• 2m³

• 3m³

• 4m³