[L11]_Hydrogen Fuel Cell Systems

Question 1

ENGY-775

What is the most common form of hydrogen?

A) Deuterium
B) Tritium
C) Protium
D) Helium

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Answer 1

C) Protium

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Question 2

ENGY-775

True or False: Hydrogen is the most abundant element in the universe.

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Answer 2

True

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Question 3

ENGY-775

Fill in the blank: Hydrogen atoms fuse to create ________, the second most abundant element in the universe.

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Answer 3

Helium

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Question 4

ENGY-775

What is the primary process used to produce hydrogen from methane?

A) Biomass gasification
B) Natural gas reforming
C) Electrolysis
D) Coal gasification

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Answer 4

B) Natural gas reforming

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Question 5

ENGY-775

True or False: Biomass gasification results in high greenhouse gas emissions.

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Answer 5

False

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Question 6

ENGY-775

Fill in the blank: The water-gas shift reaction converts carbon monoxide and water into ________ and carbon dioxide.

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Answer 6

hydrogen

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Question 7

ENGY-775

What is the primary disadvantage of natural gas reforming for hydrogen production?

A) Low efficiency
B) High greenhouse gas emissions
C) Lack of available infrastructure
D) Complex chemical reactions

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Answer 7

B) High greenhouse gas emissions

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Question 8

ENGY-775

True or False: Thermochemical water splitting uses high temperatures to produce hydrogen and oxygen from water.

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Answer 8

True

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Question 9

ENGY-775

Fill in the blank: Photoelectrochemical water splitting uses specialized ________ to convert solar energy directly into chemical energy.

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Answer 9

semiconductors

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Question 10

ENGY-775

What is a key advantage of electrolysis for hydrogen production?

A) Low energy consumption
B) Minimal equipment required
C) No greenhouse gas emissions when powered by renewable energy
D) High output per unit area

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Answer 10

C) No greenhouse gas emissions when powered by renewable energy

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Question 11

ENGY-775

What is the most common method for transporting gaseous hydrogen?

A) Pipelines
B) Tankers
C) Tube trailers
D) Rail cars

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Answer 11

C) Tube trailers

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Question 12

ENGY-775

True or False: Hydrogen can be stored as a compressed gas at cryogenic temperatures.

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Answer 12

True

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Question 13

ENGY-775

Fill in the blank: ________ materials are being researched for their potential in chemical hydrogen storage.

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Answer 13

Sorbent

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Question 14

ENGY-775

What is the primary byproduct of hydrogen fuel cells when hydrogen is used as fuel?

A) Carbon dioxide
B) Oxygen
C) Methane
D) Water

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Answer 14

D) Water

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Question 15

ENGY-775

True or False: Fuel cells operate more efficiently than traditional combustion engines.

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Answer 15

True

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Question 16

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Fill in the blank: A fuel cell consists of an anode, a cathode, and an ________.

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Answer 16

electrolyte

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Question 17

ENGY-775

Which type of fuel cell is most commonly researched for vehicle applications?

A) Solid oxide fuel cells (SOFC)
B) Polymer electrolyte membrane fuel cells (PEM)
C) Molten carbonate fuel cells (MCFC)
D) Alkaline fuel cells (AFC)

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Answer 17

B) Polymer electrolyte membrane fuel cells (PEM)

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Question 18

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True or False: Hydrogen fuel cells have fewer moving parts, making them quieter than traditional engines.

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Answer 18

True

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Question 19

ENGY-775

What is a significant challenge in the adoption of hydrogen fuel cells?

A) Low public acceptance
B) High fuel efficiency
C) Abundant infrastructure
D) Minimal environmental impact

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Answer 19

A) Low public acceptance

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Question 20

ENGY-775

Fill in the blank: Hydrogen fuel cells are unique because they can continuously produce ________ as long as fuel is supplied.

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Answer 20

electricity

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