VI Characteristics of Fuel Cell

1. What is the main function of a hydrogen fuel cell ?

a) To store electrical energy
b) To generate electricity through a chemical reaction
c) To burn hydrogen for power
d) To convert mechanical energy into electrical energy

2. What is the by-product of a hydrogen fuel cell using pure hydrogen?

a) Carbon dioxide
b) Nitrogen
c) Water
d) Methane

3. Which component carries charged particles between the electrodes in a fuel cell?

a) Anode
b) Cathode
c) Electrolyte
d) Catalyst

4. How do fuel cells differ from batteries?

a) Fuel cells need to be recharged, whereas batteries do not
b) Fuel cells generate electricity continuously as long as fuel is supplied
c) Fuel cells store energy, while batteries produce electricity
d) Fuel cells work only with hydrocarbon fuels

5. Why are fuel cells considered more efficient than combustion-based power generation?

a) They operate at higher temperatures
b) They rely on moving parts
c) They use an electrochemical reaction instead of combustion
d) They consume less oxygen