95.With reference to ‘fuel cells’ in which hydrogen-rich
fuel and oxygen are used to generate electricity,
consider the following statements:
- If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by products.
- Fuel cells can be used for powering buildings and not for small devices like laptop computers
- Fuel cells produce electricity in the form of Alternating Current (AC).
Which of the statements given above is/are correct?
a) 1 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3
The correct answer is 1 only.
- Fuel Cells
- If pure hydrogen is employed as a fuel, fuel cells release only heat and water as by-products. Hence statement 1 is correct.
- Fuel cells might power our cars, with hydrogen replacing petroleum fuels.
- It can power almost any portable device or machine that uses batteries. Laptop computers, cellular phones, and hearing aids could be powered by portable fuel cells. Hence statement 2 is incorrect.
- Hydrogen-powered fuel cells are more energy-efficient than traditional combustion technologies.
- It produces electricity in the form of direct current (DC). Hence statement 3 is incorrect.
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