State two benefits of renewable energy - Leaving Cert Engineering - Question c, d, e - 2022
Question c, d, e
State two benefits of renewable energy.
Explain the function of the idler gear B in the gear train shown.
Give one reason why it is important to keep engine parts ... show full transcript
Worked Solution & Example Answer:State two benefits of renewable energy - Leaving Cert Engineering - Question c, d, e - 2022
Step 1
State two benefits of renewable energy.
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Answer
Sustainability: Renewable energy sources such as solar, wind, and hydropower are sustainable as they can be replenished naturally and are not subject to depletion.
Environmentally Friendly: These energy sources produce little to no greenhouse gas emissions during operation, significantly reducing the environmental impact compared to fossil fuels.
Step 2
Explain the function of the idler gear B in the gear train shown.
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Answer
The idler gear B serves as a connector between gear A and gear C. Its primary function is to allow gear A to turn gear C without changing the direction of rotation. When gear A turns, the idler gear B meshes with it, causing it to rotate in the opposite direction, which in turn rotates gear C in the same direction as gear A.
Step 3
Give one reason why it is important to keep engine parts lubricated.
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Lubrication is crucial for reducing friction between engine parts. This minimizes wear and tear, ensuring smoother operation, increasing efficiency, and extending the lifespan of the engine components.
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