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Worksheets

M1S1

Total questions: 32

Worksheet time: 16mins

Name
Class
Date
1.

"Gray" hydrogen is primarily produced using which process?

a)

Electrolysis of water

b)

Steam methane reforming

c)

Gasification of organic waste

d)

Methane pyrolysis

2.

Which color of hydrogen corresponds to production by electrolysis powered by renewable energy?

a)

Blue

b)

Green

c)

Grey

d)

Yellow

3.

"Blue" hydrogen is linked to which process?

a)

Steam methane reforming with CO₂ capture and storage

b)

Hydrothermal gasification

c)

Methane pyrolysis with solid carbon as a byproduct

d)

Electrolysis powered by nuclear energy

4.

"Turquoise" hydrogen is produced through:

a)

Waste fermentation

b)

Electrolysis using renewable energy

c)

Biomass gasification

d)

Methane pyrolysis

5.

What are the main emissions associated with gray hydrogen production?

a)

Water

b)

CO₂

c)

CO

d)

H2S

6.

"Pink" hydrogen is produced by electrolysis using:

a)

Fossil fuels

b)

Geothermal energy

c)

Nuclear energy

d)

Solar energy

7.

Which process is associated with "yellow" hydrogen?

a)

Electrolysis using solar energy or mix of renewables and fossil fuel power

b)

Methane reforming with carbon capture

c)

Biomass gasification

d)

Coal pyrolysis

8.

What is the primary advantage of green hydrogen compared to gray hydrogen?

a)

Lower production cost

b)

Production from fossil materials

c)

Higher purity of the produced hydrogen

d)

Reduction in CO₂ emissions

9.

Which color of hydrogen corresponds to production via biomass gasification?

a)

Blue

b)

Brown

c)

Black

d)

Green

10.

White" hydrogen refers to:

a)

Hydrogen produced by bacteria

b)

Naturally occurring fossil hydrogen in Earth's crust

c)

Hydrogen produced using wind energy

d)

Hydrogen obtained via CO₂ capture

11.

What is the most common method for storing hydrogen in its gaseous form?

a)

Compression in high-pressure tanks

b)

Liquefaction at cryogenic temperatures

c)

Adsorption on activated carbon

d)

Conversion to ammonia

12.

What is a key challenge associated with storing liquid hydrogen?

a)

High storage temperature

b)

Low energy density

c)

Boil-off losses due to evaporation

d)

Corrosion of storage tanks

13.

Which material is commonly used for solid-state hydrogen storage through absorption?

a)

Aluminum

b)

Carbon nanotubes

c)

Silica gel

d)

Metal hydrides

14.

What is the approximate temperature required to liquefy hydrogen?

a)

-33°C

b)

-196°C

c)

-253°C

d)

-300°C

15.

Which is the most common method of transporting hydrogen over long distances?

a)

High-pressure pipelines

b)

Trucks carrying liquid hydrogen

c)

Shipping ammonia

d)

Trucks carrying compressed hydrogen in cylinders

16.

What is a major advantage of storing hydrogen in solid-state materials like metal hydrides?

a)

High storage capacity at low pressure

b)

Low cost of storage materials

c)

Ability to store hydrogen at room temperature

d)

No energy input required for release

17.

Which of the following is a disadvantage of storing hydrogen in high-pressure tanks?

a)

High energy consumption for compression

b)

Difficulty in transportation

c)

Limited availability of tank materials

d)

High hydrogen purity required

18.

Why is ammonia being considered for hydrogen storage?

a)

It has a high energy density and is easier to handle than liquid hydrogen.

b)

It can be directly used in fuel cells without conversion.

c)

It eliminates the need for specialized storage infrastructure.

d)

It reduces hydrogen's reactivity in storage.

19.

What is one of the main risks of hydrogen storage, regardless of the method used?

a)

Toxicity to humans

b)

Reactivity with oxygen, leading to explosions

c)

Incompatibility with most storage materials

d)

Release of harmful by-products

20.

Which hydrogen storage method offers the highest volumetric energy density?

a)

High-pressure tanks

b)

Liquid hydrogen

c)

Adsorption on porous materials

d)

Solid-state storage with metal hydrides

21.

What is the typical pressure range for storing hydrogen in high-pressure tanks?

a)

10-50 bar

b)

100-200 bar

c)

350-700 bar

d)

1000-2000 bar

22.

What is a primary challenge in hydrogen pipeline distribution?

a)

. Hydrogen's toxicity

b)

Hydrogen's tendency to cause embrittlement in metals

c)

High energy losses during transport

d)

Lack of scalability for pipeline networks

23.

Which chemical compound is often used to transport hydrogen due to its higher energy density?

a)

buthanol

b)

Methane

c)

Ethanol

d)

Ammonia

24.

What is the key advantage of using hydrogen in fuel cells?

a)

High production cost

b)

Ability to operate at high temperatures

c)

High efficiency and zero emissions at the point of use

d)

Low storage requirements

25.

Which sector is the largest consumer of hydrogen globally?

a)

Transportation

b)

Steel manufacturing

c)

chemical production

d)

Power generation

26.

What type of hydrogen-based fuel is most commonly considered for aviation applications?

a)

Liquid hydrogen

b)

Compressed hydrogen gas

c)

Ammonia-based hydrogen fuel

d)

Hydrogen fuel cells

27.

Which of the following industries can benefit significantly from hydrogen use in high-temperature processes?

a)

Automotive manufacturing

b)

Cement and steel production

c)

Pharmaceutical production

d)

Textile manufacturing

28.

What is the primary function of a fuel cell?

a)

Store hydrogen gas

b)

Convert chemical energy into electrical energy

c)

Compress hydrogen for transportation

d)

Generate heat for industrial applications

29.

What is the byproduct of a hydrogen fuel cell when hydrogen and oxygen react?

a)

Methane

b)

Carbon dioxide

c)

Water

d)

Ammonia

30.

Which type of fuel cell operates at the highest temperature (around 1000°C)?

a)

Proton Exchange Membrane Fuel Cell (PEMFC)

b)

Alkaline Fuel Cell (AFC)

c)

Solid Oxide Fuel Cell (SOFC)

d)

Phosphoric Acid Fuel Cell (PAFC)

31.

Which component of a fuel cell facilitates the movement of protons?

a)

Catalyst layer

b)

Membrane

c)

Anode

d)

Cathode

32.

What is the main advantage of Proton Exchange Membrane Fuel Cells (PEMFC)?

a)

High operating temperature

b)

Low cost of catalysts

c)

Ability to use multiple fuels

d)

Fast start-up time and compact size