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Explain any two of the following: Carbon footprint, Self-locking nut, Pop riveting, Light emitting diode (LED). - Leaving Cert Engineering - Question 1 - 2017
Question 1
Explain any two of the following: Carbon footprint, Self-locking nut, Pop riveting, Light emitting diode (LED).
Worked Solution & Example Answer:Explain any two of the following: Carbon footprint, Self-locking nut, Pop riveting, Light emitting diode (LED). - Leaving Cert Engineering - Question 1 - 2017
Step 1
Carbon footprint
Answer
A carbon footprint refers to the total amount of greenhouse gas emissions attributable to an individual, organization, event, or product. It is usually expressed in equivalent tons of carbon dioxide (CO2). The carbon footprint takes into account direct emissions from activities like transportation and heating, as well as indirect emissions from the production of goods and services consumed. Reducing one’s carbon footprint can be achieved through various means such as reducing energy consumption, utilizing renewable energy sources, and adopting sustainable practices.
Step 2
Self-locking nut
Answer
A self-locking nut is a type of nut that features a nylon insert which tightens onto a bolt thread, helping to prevent it from loosening due to vibrations or other forces. Its design ensures that the nut remains securely in place even under harsh conditions, making it ideal for applications in automotive, aerospace, and construction industries. This mechanism not only provides enhanced reliability but also improves safety by minimizing the risk of component failure.