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WorksheetsNew ET (Hydrogen)
Total questions: 18
Worksheet time: 9mins
What is the atomic number of hydrogen?
1
2
3
4
What is the standard state of hydrogen at room temperature?
Solid
Liquid
Gas
Slush
Which industry primarily uses hydrogen?
Electronics
Refinery
Transportation
Textile
Hydrogen is used to make which of the following common products?
Glass
Ammonia
Paper
Concrete
Which is a major use of hydrogen in the food industry?
Preservative
Artificial sweetener
Hydrogenation of fats
Coloring agent
In which process is hydrogen used as a coolant?
Powerplant
Food refrigeration
Automobile
Automobiles
What happens when hydrogen burns in the air?
Produces oxygen
It releases carbon dioxide
It produces methane
It forms water
In the presence of a catalyst, hydrogen and nitrogen gas react to form:
Nitric acid
Nitrogen dioxide
Ammonia
Hydrazine
What is a potential environmental benefit of using hydrogen as a fuel?
Produces greenhouse gases
Reduces carbon emissions
Increases air pollution
Increases air pollution
Hydrogen fuel cells produce electricity with what by product?
Carbon dioxide
Water
Sulfur dioxide
Nitrogen oxides
Which method of hydrogen production is considered 'green' when powered by renewable energy?
Steam methane reforming
Coal gasification
Electrolysis of water
Natural gas extraction
What is the primary challenge in storing hydrogen?
Its high density
Its low density
Its color
Its odor
Hydrogen storage in the form of chemical compounds is referred to as:
Physical storage
Cryogenic storage
Chemical storage
Compressed storage
Which type of electrolyzer is known for its high efficiency but high cost?
Alkaline electrolyzer
PEM (Proton Exchange Membrane) electrolyzer
Solid oxide electrolyzer
Direct solar water splitter
Which material is commonly used as a catalyst in PEM fuel cells and electrolyzer?
Gold
Silver
Platinum
Copper
What is one of the challenges of using hydrogen fuel cells in transportation?
Producing enough electricity
The availability of refueling infrastructure
The speed of the vehicles
The color of the hydrogen
What modification is necessary for a gas turbine to run on hydrogen?
Combustor
Larger blades
Cooling system
Generator shaft
What role does compression play in hydrogen transfer?
Decreases the volume of hydrogen for transport
Increases the temperature of hydrogen for easier handling
Changes the color of hydrogen for identification
Increase hydrogen density and easier to transfer via pipelines
