Hydrogen and Fuel Cell 2025 - Ice Breaker Flashcard
Flashcard
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Professional Development
•
•
Practice Problem
•
Hard
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12 questions
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1.
FLASHCARD QUESTION
Front
How much hydrogen is in the air?
Back
less than 1 ppm
2.
FLASHCARD QUESTION
Front
Which detector can be used to detect hydrogen burning? Options: Ultrasonic detector, Infra-red detector, ultra violet detector?
Back
ultra violet detector?
3.
FLASHCARD QUESTION
Front
Who discovered hydrogen?
Back
Henry Cavendish
4.
FLASHCARD QUESTION
Front
When were the fuel cells first used in space? Options: Apollo program, Gemini program, Space Shuttle Program, Project Mercury
Back
Gemini program
5.
FLASHCARD QUESTION
Front
How much hydrogen does our Sun have?
Back
more than 80%
6.
FLASHCARD QUESTION
Front
How much by mass hydrogen makes in a human body?
Back
10%
7.
FLASHCARD QUESTION
Front
Which kind of fuel cell was first used in the Gemini space program? Options: Alkaline Fuel Cell, Phosphoric Acid Fuel Cell, Solid Oxide Fuel Cell, PEM Fuel Cell
Back
PEM Fuel Cell
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