MCQ Questions - Hydrogen Fuel

What is the only by-product when hydrogen is used in a fuel cell?

• Carbon dioxide

• Nitrogen

• Water vapor

• Methane

Which of the following is a major environmental benefit of hydrogen fuel?

• Produces solid waste

• Emits sulfur dioxide

• Emits only water vapor

• Requires large mining areas

Hydrogen has how much more energy per unit mass compared to gasoline?

• About the same

• 1.5 times

• 2 times

• Nearly 3 times

What type of hydrogen is produced using renewable energy sources?

• Grey hydrogen

• Blue hydrogen

• Brown hydrogen

• Green hydrogen

Fuel cell vehicles convert hydrogen to electricity at what approximate efficiency?

• 20%

• 40%

• 60%

• 80%

Which sector is NOT typically powered by hydrogen according to the text?

• Transportation

• Domestic energy

• Power generation

• Agriculture

What major problem do fossil fuels contribute to?

• Ocean salinity

• Global cooling

• Climate change

• Increased oxygen levels

How can hydrogen help balance the electrical grid?

• By increasing fossil fuel usage

• By storing excess renewable energy

• By burning in power plants

• By replacing wind turbines

What is a key feature of hydrogen compared to battery-based systems?

• Slower refueling

• Higher pollution

• Fast refueling and long range

• Heavy equipment requirements

Why is hydrogen considered a versatile fuel?

• It is easy to burn directly in homes

• It is only used in laboratories

• It supports multiple sectors like transport, industry, and power

• It is cheaper than coal